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06/21/1982 - City Council SpecialSPECIAL CITY COUNCIL MEETING JUNE 21, 1982 6:00 P.M. 1. Firefighers' Pension Plan 2. Project 342 "Cedar Grove 1st & 2nd Addition - Street Reconstruction" 3. Water Treatment Schedule 4. Other Business 5. Adjournment MEMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 18, 1982 SUBJECT: SPECIAL CITY COUNCIL MEETING A special City Council meeting is scheduled for 6:00 p.m., Monday, June 21, 1982, at the Eagan City Hall. Originally, the special City Council meeting was scheduled for 7:00 p.m.; however, due to a conflict with the Volunteer Firefighters, the meeting was moved up to 6:00 p.m. The Volunteer Firefighters have their regular Monday night training and a general meeting scheduled at 8:00 p.m., and, therefore, it was necessary to move the time schedule for the meeting from 7:00 to 6:00 p.m. Enclosed is a copy of the agenda for the special City Council meeting which has been properly posted. Firefighters' Pension Plan Enclosed is a copy of the memorandum to the Finance Committee that was copied to the City Council approximately two weeks ago that outlines the various alternatives discussed at a special City Coun- cil meeting on June 8, 1982. It was the consensus of the City Council that the IRA, alternative #4, be presented to the Pension Committee of the Relief Association. Enclosed is a copy of an excerpt from the League of Minnesota Cities magazine, October, 1981 issue, that addresses the use of IRA accounts for volunteer ambulance and fire fighers. It is very likely that legislation will be required in order to work out at transition from a defined benefit program to an IRA account if selected by the firefighers and City Council and due to the special intricacies of working out the required legislation, the City Administrator will await a consensus before proceeding with a proposed IRA Retirement plan. There are a number of memorandums and support data regarding pre- vious discussions to change from a defined benefit program to a defined contribution or other type of program. There are also some fact findings from Roger Katzenmaier, Gus Welter and the City Administrator. The City Council has received this information in the past. If any member would desire any or all of this informa- tion copied as resource data, please contact the City Administra- tor's office. Agenda Information Memo June 18, 1982 Page Two The City Administrator suggested at the last City Council meeting that the Director of Public Works and City Administrator have time to address issues that pertain to public works that are under con- sideration by the City Council. Two (2) specific items were placed on the agenda, one of which is Project 342, the Cedar Grove 1st and 2nd Addition Street Construction, and secondly a water treatment schedule to consider a water treatment plant revised study, survey and public hearing. Other items to discuss are seal coating, county road construction and any other items that the City Council may have questions about. Project #342 Enclosed is a memorandum and considerable information as it pertains to a report on the proposed Project #342 Cedar Grove 1st & 2nd Addition street reconstruction. This information has been prepared and/or coordinated by the Director of Public Works. Water Treatment Schedule The Director of Public Works and City Administrator would like to discuss the proposed time schedule for reconsideration of the water treatment plant, the progress of the feasibility report, a proposed survey to be considered as a City wide newsletter and time for a public hearing. There is no support information to send out with this scheduled item. The discussion is basically proposed as strategy planning with the City Council. Informative Mayor Blomquist, City Councilmember Egan and City Administrator Hedges all attended the League of Minnesota Cities meeting held in Rochester this week. Mayor Blomquist and City Administrator Hedges were in attendance on June 16 and 17 and City Councilmember Egan was present on June 17 and 18. The conference was well attended by elected and appointed officials from the State of Minne- sota and both Mayor Blomquist and I were members of the Planning Conference Committee and received positive input about the quality of the conference which I believe benefited persons who were in attendance. The City of Eagan was well represented at the various sessions. The Director of Finance and Building Inspector were also present for one day sessions to hear seminars that affect their respective positions. P&Qz �q4l. City A C' d ministrator - MEMO TO: FINANCE COMMITTEE MEMBERS JIM SMITH & TOM EGAN FROM: CITY ADMINISTRATOR HEDGES DATE: MAY 26, 1982 SUBJECT: VOLUNTEER FIREMEN'S RELIEF ASSOCIATION RETIREMENT PLAN Background The City Council received a memorandum from the City Administrator pro- viding a brief history of discussions that have taken place between the City Council and Volunteer Firemen's Relief Association regarding an increase or change in the association• retirement plan. Also submitted for review by the City Council on March 23, 1982 was a memorandum prepared by Roger Katzenmaier addressing an independent study that he performed with Gus Welter that examined the conversion of the association's retirement program from a defined benefit plan to a defined contribution plan. The City Council received the reports and asked the Finance Committee to meet with Mr. Kat- zenmaier to review the lengthy memorandum. The meeting was scheduled and held on Tuesday, April 6, 1982. There was a great deal of discussion by the Finance Committee and Mr. Katzenmaier at that meeting, and as a result, the Finance Committee desired additional time to study the facts and prepare a recommendation for the City Council. A follow-up meeting was held on May 26, 1982 at which time several options were again discussed and a recommendation considered for review by the City Council at a special meeting. Recommendation The Finance Committee, in studying the information prepared by Mr. Katzen- maier, in addition to data supplied during the past several months, feels that there are four (4) options available regarding the Volunteer Firemen's Association Retirement Program. Those options are as follows: I. Continue with the defined benefit program. 2. Convert to a defined contribution proposal as previously presented by the City Council. 3• Provide a combination of the above two options by requiring a lump sum benefit only. 4. Convert the existing program to an IRA which allows for cash pay- ment to each volunteer fireman upon completing one year as a volun- teer fire fighter and each year thereafter. The Finance Committee feels a conversion to an IRA plan is a viable and suitable option to be considered by the City Council. Retirement Plan May 26, 1982 Page Two Action The City Council has agreed in recent months that the Finance Committee would be used to provide fact finding; however, the entire City Council would present and discuss a position as it relates to any change or increase in the retirement plan for the Volunteer Firemen's Relief Association. It is therefore the recommendation of the Finance Committee that the City Coun— cil hold a special City Council meeting and discuss their position. Once an option is agreed upon, it will then be presented to the pension committee for further consideration. CLQ �L4 L-tty Administrator `61 STANLEY PESKAR EDITOR'S NOTE: The questions below are typical of the thousands of Inquiries the League receives each year. For more comprehensive treatment of quesdomi, the information service of the league Is always available to municipal officials. PERSONNEL—RETIREMENT Does the new federal tax law solve the problem of what to do about a retirement program for ambulance and other volunteers? Apparently yes. Though the state legislature has not had an opportuni- ty to conform state tax laws to the federal laws, it is highly probable it will do so in the next session. Whether the state ads or not, "volunteers" and other city employees, regardless of whether or not they have another pension plan, may annually put up to $2,000 into an independent retirement account (IRA), free of federal taxes.' 14 Thus, cities can now determine how much to pay ambulance or firefighter' volunteers, make a direct payment to the volunteer, and let him or her decide whether to take the money as current compensation or put it in an IRA for retirement pur- poses. Money placed in IRAs is not tax- able in the year in which it is receiv- ed. Therefore, the entire amount can be invested and can earn a yield up to the date of retirement. When the volunteer retires, the payments are taxable, but presumably the recipient is in a lower tax bracket at that time because of lower income and in- creased exemptions or deductions or a combination of all three. The IRA has several advantages for the volunteer over participation in a more conventional retirement plan such as a local relief association. Since there is no vesting period, assets are not lost by failure to serve a minimum period. (Ten years is typical in most other plans.) Thus, there is full portability from one com- munity and job to another. Further, since the IRA belongs to the volunteer, it is not subject to manipulation through benefit for- mula changes by a board of trustees or the legislature. Consequently, the volunteer need not commit valuable time out of a busy schedule to par- ticipation itt governance of a relief association. He or she need only select an IRA plan and determine THEIN WELL CO., Inc. Complete Well & Pump Service Since 1893 24 Hr. a Well Drilling a T.V. Well Inspection Well rice Pump Service a Well Repair a Electric Logging a Pump Repair a Pump Sales Clara City, MN .................... 612-847-3207 Spicer, MN ....................... 612.796-2111 Rochester, MN...................507.288-5554 each year the level of participation which is appropriate. The IRA assets are a reserve of cash available to the volunteer in certain emergencies before retirement. The IRA thus provides a ready-made sur- vivor, disability, and burial benefit to the extent of funds in the account. Should volunteers need additional disability or survivor benefits, these can be purchased individually or by the city as part of the compensation package from an insurance com- pany. The IRA also permits selection of a money manager with an investment strategy or policy which suits the in- dividual economic or social goals of the volunteer rather than the objec- tives of the relief association trustees or state legislators. Finally, the use of current compensation (with volunteer option to purchase an IRA) to the volunteer ambulance or fire service permits city officials (mayor and clerk) to avoid responsibility for managing a local relief association, for preparing, reviewing, and filing complex financial reports, and for hassling with an organization which can be a major political force in the community. The new federal law offers a less complicated way to attract, retain, and provide security for a citizen resource which cities may increasing- ly need to rely upon to provide ser- vices in these times of contraction of financial resources. Footnotes Those coordinated employees covered by PERA would be subject to Social Security taxes and PERA deductions on their IRA contribu- tion- but it is unlikely that any volunteers would be paid the minimum $725 per month required for participation in the coordinated PERA-Social Security program. Thus, no federal deductions would be made. ' If the city has a local volunteer fire relief association, all of the 2% state fire aid must go to the relief association. If no local relief association exists, the 2% aid may be used for equipment, supplies, and buildings, and the city could put a comparable amount from other sources into current compensation which could then be used by individual firefighters for IRAs. IRAs could also be used to supptcmcnl i-v4ing relief association benefits. MINNESOTA CITIES TO: HONORABLE MAYOR AND CITY COUNCIINEZ�9BEF6, C/O THOMAS L. HEDGES, CITY 40 1 111111 AT6][r*TI.TFR9 DATE: JUNE 18, 1982 RE: PRO= 342, CEDAR GROVE 1ST AND 2ND ADDITION - STREET RECCNSTRUCTION In the early fall of 1980, the City Council directed staff to analyze:the streets in the Cedar Grove Additions to evaluate their needs and maintenance requirements in order to maintain these streets to try to lengthen their ser- vice life before major reconstruction and replacamnt became necessary. Sub- sequently, the staff performed an experimental repair on West Marble Lane through the intersections of North and South Diamond Drive. The south half of Marble lane was reconstructed after ramving the deteriorated and fractur- ed existing bituminous surfacing. A 2" overlay was then placed over this section of Marble Lane to analyze the difference between removal and replace- ment prior to an overlay and the effects of just overlaying the existing bit- uminous. This "test" section has now gone through tiro winter/spring cycles. The results -indicate that the south half of Marble lane that was reconstruct- ed has experienced.approximately 80% less of reflective cracking through the 2" bituminous overlay. On the north half of Marble Lane, random cracking has reappeared which is a direct reflection of the random cracking that existed prior to the bituminous overlay. Subsequently, this random cracking will di- minish the expected additional life that could be provided by this corrective overlay. In the summer of 1981, the staff contracted with Midwest Pavement Management Inc. to perform a detailed analysis of the streets in the Cedar Grove lst and 2nd Addition. Their analysis consisted of traffic counts, traffic distribu- tion analysis, test core samples, and computerized pavement deflection eval- uation to determine the existing pavement stability. A copy of that report is attached for the Council's information. They were asked to evaluate 5 different possible alternatives as recommended by City staff. Their analysis was then computed and converted to an "expected life/annual cost" relation- ship as indicated on Page 12 of that report. During 1981, the City had Professional Services Group Inc. televise the san- itary sewer lines in the Cedar Grove 1st Addition to try to determine any potential corrective work that may be required. This closed circuit tele- vision investigation of the sanitary sewer indicated several areas that need corrective work due to settlement of pipes, misalignment of pipes, fractured pipes, protruding services, and extensive root infiltration which will great- ly increase the potential of sanitary sewer back ups. In addition, during the spring of 1982, the Public Works Utility Maintenance section performed an analysis of all sanitary sewer and storm sewer manhole castings and found that approximately 60% of these are in immediate need of reconstruction and repair due to deterioration. Based on the results of the televising of the 1st Addition, the staff then contracted during the spring of 1982 with Mid- west TV Inc. to televise the sewer lines in the 2nd Addition to try and de- tennine if similar corrective work was necessary. The results of this -,vrk Project 342 Jame 18, 1982 Page two are not yet immediately available but are anticipated within the next three weeks. Subsequent to this pre -investigation work performed by staff, the results of this information were forwarded to the City's Consulting Engineering firm o£ Bonestroo, Rosene, Anderlik and Associates, Inc. for the preparation of a feasibility report to estimate the costs of repair and the resulting potential assessments associated with this work in the 1st and 2nd Additions. Copies of this feasibility report are also being forwarded to the Council for their re- view. Please keep in mind that this feasibility report is in a preliminary draft stage and is subject to revision after discussion between staff and Coun- cil. There are several concerns that have not been specifically addressed in the feasibility report that staff would like to bring to the Council's attention to receive further direction on before additional work is performed. These are summarized as follows: 1. Possible replacement of deteriorated blacktop curbing with concrete curb and gutter. 2. Required corrective construction to existing sanitary sewer and storm sewers. 3. Reconstruction of deteriorated manhole casting supports and catch basin_ structures. 4. Elimination vs. restoration of service drives (Nicoll Road and County Road 30) . 5. Assessments against corner lots where only side streets are reconstructed/ upgraded. 6. Potential need of increasing the structural strength of minor "collector" streets with potential sidewalks/pathways/striped walking lanes due to the closure of Cedar Elementary School and the potential of increased busing and/or increased pedestrian traffic through the 2nd Addition to Rahn Elementary School. 7. Revenue sources: assessments vs. major street trunk fund B. Consideration of additional storm sewer facilities in certain areas to increase drainage capabilities. MYLACEMENT CF BITUTINMS CURBING The existing bituminous curbing has been in place for 20+ years and is show- ing signs of deterioration resulting from extensive weathering, snowplow main- tenance, etc. with the placement of a proposed 2" bituminous overlay of the existing surface, these subdivisions will experience decreased curb heights Project 342 June 18, 1982 Page three which will decrease the capabilities of confining drainage from major storms within the street area and will require extensive driveway approach recon- struction. If the streets were reconstructed with concrete curb and gutter, it would increase the drainage capabilities and minimize image resulting from major storms and would greatly extend the life of the streets in these subdivisions. However, there is greater cost associated with this improve- ment as compared to a repair and maintenance of the existing street surfac- ing. I: 71•. •: • 7/.• M4 i\IM d. :\i• N:N x.171: I will be available to discuss in further detail the condition of the exist- ing sanitary and storm sewers in these Additions at the meeting to be held between staff and Council to discuss this proposed project. The results of the first internal televising report indicate that there are several areas that need reconstruction. This work should be performed prior to any repair work to the surface to minimize the potential of construction patching in the future. An inspection by the Utility Maintenance section indicates that the great majority of manhole castings for sanitary and storm sewers within these Addi- tions were placed without adequate grouting and/or support rings. Subsequent- ly, these supports are deteriorated which results in infiltration around these structures which will create the potential of extensive future patching to correct these situations in the future. 171 Iu11Ud Y •i •i 71:d / •1 � : \I . With the congpletion of the Cedar Avenue freeway, Nicols Road (County Road 23) is anticipated to be turned back fran the County to the City. The traffic volumes on this section of road have greatly decreased since the opening of the Cedar Avenue freeway. Subsequently, where it was once considered a major arterial, it will be reclassified to a City collector status. Subsequently, there is a question as to whether the frontage roads along Nicols Road will be necessary in the future. If not, should extensive reconstruction be per foamed to these severely deteriorated frontage mads or should they be e]iminI ted and the dollars spent in providing direct driveway connections to existinc* Nicols Road and returning this frontage area to open space front yard for the adjacent structures? Presently, there are several louses located north of Cedar Elementary School which take direct access onto Nicols Road and several which take direct access by way of a severely deteriorated frontage road. The staff would recommend that these services drives be eliminated and reconverted to front yard space with direct driveway connections being made to Nicols Road. Should assessments be spread on a per lot basis equitably throughout the Addi- tion or should assessments be based on the front food method with corner lots receiving a greater assessment due to their increased frontage? In addition, should corner lots that have frontage on streets not to be repaired be assess- ed for the improvement of the streets adjacent to their side yard areas? Project 342 June 18, 1982 Page four WOW •Db N N V SM Vol 0 with the recent closure of Cedar Elementary School, students in the 1st and 3rd Additions will be transferred to Rahn Elementary School south of the 4th Addition. Recently, there has been discussion as to whether the students on the north side of County Road 30 will be bused to Rahn Elementary. If so, should an internal "collector" street be designated through the 2nd and 4th Addition for this bus traffic? If so, that designated street should be up- graded to handle the anticipated heavy traffic loads associated with school buses. I£ the busing alternative is not realized, there will be increased pedestrian traffic through the 2nd and 4th Addition to Rahn Elementary School. If this is the case, should tyre be consideration given to again designating a "collector" street in either upgrading this designated street to a wider width to provide on -street designated walking lanes or should a separate de- tached sidewalk/pathway be constructed for this anticipated increased pedes- trian traffic? REVENUES: ASSESSMENTS VS. TRUNK FUND Since these streets were constructed in the late 50's and early 60's, they have been in service for approximately 20+ years. This is the average life expectancy of a bituminous roadway. In addition, the design standards that they were constructed to,provide for approximately 50% less structural strength than present day standards. As such, what consideration should be given towards assessments of benefited properties for not only maintaining these streets but upgrading them to the structural strength necessary to handle the normal traf- fic loads associated with residential streets? Mile a detailed status analy- sis of the City's major street tank fund is not yet complete, pmli=. ary in- dications are that due to recent major street construction projects (Pilot Knob Road, Wescott Road, Galaxie Avenue) and required future collector street construction requirements (Blackhawk Road, County Road 30, etc.), there are limited construction funds available to undertake a project where a major anticipated revenue is anticipated to be provided through this fund. In addi- tiai, consideration should be given to potential precedence relating to this assessment policy and its impact on future needs for other Cedar Grove Addi- tions (3rd and 4th, etc.). ADDITIONAL STORM SEWER There are certain areas in these two Additions that presently either do not have adequate storm sewer facilities or the catch basin structures that are existing are below minimum inlet capacities for the normal 5 -year storm fre- quency designs. In addition, several of the catch basin grates are of the old design that have the inlet slats parallel to the curbing which present a hazard to bicycle traffic. Consideration should be given to potential re- placement of these castings, upgrading of existing storm sewer facilities and/or installation of additional storm sewer systems at critical areas. Project 342 June 18, 1982 Page five As can be seen by several of these areas of concern, the anticipated im provement in the Cedar Grove 1st and 2nd Additions enccnpasses more than just routine maintenance and repair of the existing bituminous surfacing. I don't believe that routine normal maintenance procedures through the years could have eliminated or minimized any of these concerns. The maj- ority of these concerns relate to the problems associated with streets that are reaching the end of their original anticipated life expectancy. Subsequently, staff would appreciate the opportunity to discuss in depth these concerns with the City Council to receive a defined direction as to how these problems should be approached. I will welcome the opportunity to respond to any questions and discuss this project in further detail with the City Council at their convenience. spectfull LL REsuils[uittedi� Thomas A Colbert, P.E. Director of Public Vbrks TAC/jack cc - Bill Branch, Superintendent of Streets and Equipment Joe Connolly, Assistant Superintendent of Utilities EVALUATION OF THE.PAVEMENTS in CEDAR GROVE NO. 1AND 2 for CITY OF PAGAN. July 19,81 MIDWEST PAVEMENT ;MANAGEMENT, INC. PAVEMENTMANAGEMENTCONSULTANTS Swte:6so.:i 5500 Waynta awev'wd vv , a"=.'MmewtaiE6391 (612) 475-9957 Commission 0180014-6 The evaluation of the pavements in Cedar Grove No. 1 and 2 in the City of Eagan (Figure 1) was conducted to determine what pavement work needs to be done and what the estimated costs would be. The evaluation consisted of the following: • Pavement strength determination with the Road Rater • A surface condition survey • Pavement thickness determination • Heavy Commercial traffic volumes • Analysis and cost estimates e Recommendations RECOMMENDATIONS The following recommendations are based on lowest cost per year of serviceable life before structural pavement repairs would be expected. 1. Remove and replace the alligatored and distorted areas. This represents 19,000 square yards of pavement or 20`� of the area. The estimated unit cost of $4.00 per square yard is based on removal by milling at $1.50 per square yard and replacement with 2331 at $2.50 per square yard. It is recommended that the removal and replacement items be bid separately and that Mn/DOT Spec. 2332 be available as an alternate for the replace- ment material which may lower the unit cost for this portion of the work. 2. Apply a 1',' overlay to Garnet Lane and Drive, Zircon Lane and that portion of Jasper Drive west of Sandstone Lane. Again 2332 should be allowed as an alternate material for this portion. 3. Overlay the entire area with 3/4" of 2331 modified or Bloomington 2341 modified. This is expected to give 15 to 20 years of service- able pavement life before structural maintenance would be required, resulting in the lowest overall per year cost. It is also expected that the frequency of seal coating would be much lower for the 2331 modified or the Bloomington 2341 modified. The estimated costs for this work on Cedar Grove No. 1 and 2 would be 5183,000.00 for 86,000 square yards of residential street. -3- FIGURE 1 LOCATION OF CEDAR GROVE NO. 1 AND 2 -4- INTRODUCTION g The City of Egan requested that Midwest Pavement Management, Inc. evaluate the pavements in Cedar Grove No. 1 and 2 and provide the City with maintenance recommendations and corresponding cost estimates. The City does not have information regarding the design and construction of the pavements in Cedar Grove No. 1 and 2. The pavements have provided approx- imately 20 years of service and a general improvement is necessary at the time I to protect the existing investment and to minimize future pavement failures and maintenance costs. Several alternate improvement designs are considered to determine which would be most beneficial in terms of cost and expected life. The alternates considered are as follows: 1. Crack filling with seal coat application (single or double) 1 2. Patch and repair with seal coat application 3. Patch and repair with bituminous overlay (determine minimum thickness) 4. Overlay only with recommended bituminous thickness Also, the economic and practical feasibility of including a filter fabric in specified locations in lieu of patch and repair prior to overlay was considered. I — -5- THICKNESS OF EXISTING PAVEMENT To determine the thickness of the existing pavement, eight locations were sampled by drilling a small (1 inch) hole into the pavement and measuring the thickness. The bituminous thickness (listed in Table 1) average is 2.56 inches with a coefficient of variation of 19 percent. The aggregate base averaged 3 inches at the locations sampled, resulting in an average Granular Equivalent thickness of 8 inches. (/ rAe PYrSr„ / �rs'i �an fia/ Srrrrt Der.9w SfaN acV ciS (a X /` 12..S 116rSMr14r cfv, v,/rnY(G.G for Sf YVcivlc./ Itrrns f/, lit vs 9" 4i.e.. er.sAal _J Se% Jef,c,c.,cr TABLE 1. Measurements of the bituminous layer thickness in Cedar Grove No. 1 and 2 Bituminous Point No. Thickness Street (Addn) 1 3.0" Diamond (1st) 2 2-3/4" Opal (1st) 3 2-1/2" Zircon (1st) 4 3" Diamond (2nd) 5 3" Sandstone (2nd) 6 2-1/2" Amber (2nd) 7 1-3/4" Jasper (2nd) 8 2" Jasper (2nd) Average = 2.56 inches Standard deviation = 0.48 inch -6- f 1 TRAFFIC The streets evaluated are functionally classified as residential. The volume of traffic for residential streets is normally under 400 vehicles per day. Of this traffic, only the Heavy Commercial traffic need be con- sidered for pavement thickness design purposes. The predominant Heavy Commercial vehicles that travel these streets are garbage trucks, school buses (Table 2), and City maintenance vehicles. There are between 5 and 7 garbage trucks in Cedar Grove No. 1 and 2 per week. Other Heavy Com- mercial traffic such as delivery trucks are normally much lighter than the garbage trucks and school buses. There are no MTC buses on these residential streets. The accumulation of truck traffic on these streets results in an approximate Sigma N18 of 30,000 or less over a 20 year period. This is well within the minimum design section of the Bituminous Pavement Design Charts in the Mn/DOT Road Design Manual. TABLE 2. School Bus Routes (All 66-72 passenger) in Cedar Grove No. 1 and 2 AO -E,114 0.rf>r $I$2 we 10 C�COOr L—�F'nr .6- nSrn51 ? IST ADDITION Street Termini Number of Routes Diamond Drive All 1 Garnet Lane Diamond Drive to Topaz Lane 2 Topaz Lane Garnet Lane to Zircon Lane 2 Topaz Lane Co. Rd. 30 to Zircon Lane 1 Zircon Lane All 1 2ND ADDITION Coral Lane All 2 Diamond Drive Co. Rd. 30 to Coral Lane 2 Jasper Drive Rahn Road to Sandstone Drive 2 Marble Lane W. Jct. Diamond Dr. to Nichols 2 Marble Lane Sandstone Dr. to W. Jct. Diamond 2 Dr. Sandstone Drive Coral Lane to Jasper Drive 2 Sandstone Drive Jasper Drive to Marble Lane 1 -7- THICKNESS DESIGN Within the Mn/DOT Bituminous Pavement Design procedure, the pavement design is based on the maximum allowable deflection during the spring thaw period. Table 3 lists the present estimated spring deflection for each of the streets in Cedar Grove No. 1 and 2. These deflections are calculated from the deflec- tions measured with the Road Rater using relationships developed by Mn/DOT. The last column in Table 3 indicates the increase in G.E. recommended to reduce the deflections to the recommended value. Five of the seven streets in the 1st Addition indicate a need for an increase in structure while only three of the nine streets in the 2nd Addition require additional structure. y TABLE 3. Summary of pavement strength analysis 1 1st ADDITION Measured Allowable Additional Deflection* Deflection* G.E. Required (inches) inches (inches) Diamond Drive 0.079 0.070 2.4 Garnet Lane & Drive 0.096 0.080 4_2 Sapphire Lane 0.067 0.070 Emerald Lane 0.072 0.075 --- Opal Drive 0.092 0.080 3.2 Zircon Lane 0.083 0.070 3.4 Topaz Drive 1 0.072 0.070 0.6 2ND ADDITION Marble Lane 0.069 0.070 --- Diamond Drive 1 0.061 0.070 Moonstone Drive 0.071 0.075 Amber Drive 0.085 0.080 1.2 Amber Court 0.092 0.085 1_6 Limestone Drive 0.072 0.075 Sandstone Drive 0.075 0.075 --- Coral Lane 0.075 0.075 --- Jasper Drive 0.085 0.070 3.9 * The values are expressed as an equivalent Benkelman Beam deflection and represent the mean plus two standard deviation values. - -8- ' SURFACE CONDITION A surface condition survey of the pavement was conducted to determine the type and quantity of distress that is present. The type of distress and the area affected that are relevant to the evaluation are as follows: 1 Distress Area of Pavement Affected Alligator Cracking 17,000 sq. yds. Distortion 4,000 sq. yds. { Block Cracking 18,000 sq. yds. r A portion of the alligator cracking and block cracking is formed by very D narrow to hairline cracks. Although these are hard to see, they will become a more dominant in the future and should be considered at this date. Several of the streets evaluated such as Diamond Drive in the 2nd Addition, have extensive alligator cracking and patching while showing that the strength was adequate. This type of condition is common in instances where the truck traffic has provided continued compaction of the aggregate base and upper portion of the subgrade while causing cracking of the asphalt surface. The other streets that have higher deflections with minimal surface distress would show the same response if subjected to increased volume of truck traffic. Removal and replacement of the areas with alligator cracking is normally recommended to avoid maintenance problems in the future caused by the reflec- tion of those cracks if overlayed or to avoid the development of potholes. -9- I EXPECTED PERFORMANCE OF ALTERNATES CONSIDERED The four alternates considered and their expected life are as follows: H I — -10- Expected Time to Structured Alternate Maintenance 1. Crack fill and seal coat 1 year 2. Patch and repair with seal coat 7 - 10 years 3. Patch and repair with overlay 15 - 20 years 4. Overlay 7 - 10 years The years of performance before additional maintenance would be required is described as follows: 1. One year of performance would be expected for crack fill and seal coat. There are a number of areas with substantial alligator cracking. Alli- gator cracks form blocks of bituminous pavement with an average dimension of 6 inches or less. Crack filling these areas would be very difficult and do not effectively seal out moisture in these forms of cracking. The cracks will be present and open the following spring, allowing water 1 to enter the base and subgrade below resulting in further deterioration of the pavement. 2. Seven to ten years of performance would be expected for patch and repair with seal coat. The controlling factors for this alternate are the existing block and longitudinal cracking that will slowly continue to deteriorate and eventually require maintenance. The cold joints surround- ing all the patch and repair areas also will have some localized deterior- ation requiring future maintenance. However, it is expected that the maintenance requirements would not be very extensive. 3. Fifteen to twenty years would be expected from a patch and repair and,-- nd --overlay. overlay.This alternate would provide service equivalent to what would be expected from a new pavement. Weathering and spring will be the dominant factors controlling the length of service expected. 4. Seven to ten years would be expected from an overlay. The predominant factor that would limit the serviceable life of the overlay is the exist- ing alligator cracking. The cracking will reflect through the overlay in five to seven years and will become a maintenance item several years after. H I — -10- In addition to the four alternates, the City requested that the economic and practical feasibility of fabrics be considered in lieu of patch and repair prior to an overlay. Several brands of the fabrics have been in- stalled at various locations in Minnesota on an experimental basis and are being monitored by Mn/DOT. There has been no evidence in Minnesota to date, that the presence of these fabrics improve the performance of the pavement. The reported successes have been further south in milder climates. The installed price of a fabric at this time is equivalent to a 1, inch Mn/DOT Spec. 2331 overlay. Based on present performance of fabrics in Minnesota, we do not recommend they be used. For future reference, a small experimental installation may be justified. If such an installation would be made, inform Mn/DOT, Office of Research and Engi- neering Development, which is presently observing the performance of various fabric applications. I COST OF ALTERNATES The unit costs applicable to the various alternates were obtained from 9 various paving contractors in the area and from recent bids. The costs are listed in Table 4 and the alternate costs in Table 5. TABLE 4. Unit Costs I 1 Seal Coat••• Sq. Yd. 47.90 48.90 51.51 49.7¢ • See enclosed specification or use the Bloomington 2341 modified specification. •• Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. •" Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE 5. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost Annual Cost Quotes from Contractors 1/$43,000 Patch and Repair with Seal Coat Item Unit A B C 0 (Average) Overlay Overlay - lis" 2341 Sq. Yd. $2.00 $2.00 $4.30 51.65 Overlay (includes an additional Overlay - 3/4" 2331 mod.* Remove and Replace" Sq. Yd. Sq. Yd. 51.05 51.25 -- 51.00 and a part of Jasper) $183,000 15/512,200 $2.00(a)-5.00 $4.50 54.00 lay and 100: 3/4" overlay) 5132,000 10/513,200 E F G H I 1 Seal Coat••• Sq. Yd. 47.90 48.90 51.51 49.7¢ • See enclosed specification or use the Bloomington 2341 modified specification. •• Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. •" Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE 5. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost Annual Cost Crack Fill and Seal Coat $ 43,000 1/$43,000 Patch and Repair with Seal Coat $109,000 7/515,570 Patch and Repair with 1-3/4" (Average) Overlay $266,000 20/$13,300. Patch and Repair with 3/4" Overlay (includes an additional I-1/2" overlay on Garnet, Zircon and a part of Jasper) $183,000 15/512,200 Overlay (based on 30; 1-I/2" over- lay and 100: 3/4" overlay) 5132,000 10/513,200 The annual costs are based on the initial cost divided by the expected years of service. Factors such as interest rates, salvage value, etc. were not - considered -12- k SPECIFICATIONS FOR CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT NO. 342 FOR EAG^ MINNESOTA 1982 BonedAm FILE No. 49229 /(ode w,, 1qmda4" 9 lqddocfa�ed, Yme. (?s""d4--vq -0.q� St pa"4 m4mmda& June 7, 1982 Honorable Mayor S Council City of Eagan 3795 Pilot Knob Road Eagan, Mn. 55122 Re: Cedar Grove No. 1 S No. 2 Bituminous Overlay Project 342 Our File No. 49229 Dear Mayor and Council: Transmitted herewith is our report for Cedar Grove No. 1 and No. 2, Bituminous Overlay. This report discusses existing street conditions within Cedar Grove No. 1 and No. 2 and presents cost estimates for street rehabilitation. We will be pleased to meet with the Council, and other interested parties, at a mutually convenient time to discuss this report. Yours very truly, BONESTR00, ROSENE, ANDERLIK 6 ASSOCIATES, INC. Mark A. Hanson MAH:li I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. Mark A. Hanson Date: June 7, 1982 Reg. No. 14260 Approved by: Thomas A. Colbert Director of Public Works Date: 0021b CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY SCOPE: This report evaluate existing streets included within Cedar Grove No. 1 and No. 2 and presents improvement considerations in conjunction with their estimated cost and proposed assessments. Also included for consideration is construction of concrete curb and gut- ter in conjunction with a bituminous overlay. FEASIBILITY AND RECOMMENDATIONS: This project is feasible and is in accor- dance with requirements for street construction for the City of Eagan. The project as outlined herein can be carried out as one contract. Information pertaining to traffic volume, in-place cross section, measured deflections of the existing pavement, and required granular equivalencies are presented in a report prepared by Midwest Pavement Management, Inc. titled "Evaluation of the Pavements in Cedar Grove No. 1 and No. 2." DISCUSSION: Streets included within Cedar Grove No. 1 and No. 2 have provided approximately 20 years of service which for the most part is considered to be the normal life of a bituminous pavement. The existing street condition dic- tates that it is not cost effective from a maintenance standpoint to apply a seal coat application at this time. This report proposes to construct a 1-1/2 inch 2341 bituminous overlay for all streets included within Cedar Grove No. 1 and No. 2. A bituminous overlay must be constructed on stable bituminous surface if the overlay is to provide an estimated 15 year service life. If an on-going seal coat program is maintained, the service life could be extended even fur- ther. Many streets within Cedar Grove No. 1 and No. 2 have deteriorated to a Page 1. 0021b point where extensive patching and other considerations must be given prior to constructing a bituminous overlay. Streets were therefore, classified into three categories for restoration purposes. Each category is summarized herein and also shown on each figure located at the back of this report. Also shown are critical driveways which additional work will be required to privide proper grade and drainage. RANDOM CRACKING: These are areas where the existing pavement has experienced longitudinal and transverse cracking. These cracks are primarily due to the expansion and contraction of the pavement because of temperature change and also the age of the existing pavement. The pavement for the most part is structurally adequate however a bituminous overlay is warranted due to surface wear and the degradation of the initial pavement properties. It is recommended in these areas cracks be blown clean and a crack sealer of emulsified asphalt be applied prior to the bituminous overlay. MAP CRACKING: These are areas where the existing pavement is ,dl Bib experienc- ing transverse and longitudinal crack in w ,t "4 are confined U& smaller areas. The structural strength of the pavement is deteriorating at a quicker rate, however, it is not cost effective at this time to remove the existing pavement and patch. Two alternatives for treatment of this type of cracking are presented herein which from a cost standpoint are equal. One alternative is to apply additional thickness of bituminous mixture during the overlay process. How- ever, due to marginal driveway grades additional work will be required. Z rr,o� }O w.e 1441 OveY10.( The other alternative is to apply a fabric material which isrfairly newlto JQ *te uaavk,et-in the northern states. Communities which have utilized fabric ma- terial on residential streets have been impressed with its performance to Page 2. 0021b date. The Minnesota Department of Transportation has utilized the fabric ma- terial on highways and have not experienced near the success. However, it is felt due to higher traffic volumes and speeds the fabric material does not perform nearly as well as on low volume and low speed streets. It is recom- mended the fabric material be utilized for this project. MULTIPLE AND ERODED CRACKING: These are areas where the existing pavement has }o d af'Yfe wLere it' k4s fest a+, St'r✓c+wrd( litre" -4 %*f 6;Nfy q,., deterioratedAsu* -'9hPnN the only cost-effective approach from a maintenance standpoint is to remove the existing pavement. It is therefore recommended in these areas the remaining pavement be removed and a 2 inch bituminous base course be constructed prior to the bituminous overlay. CONCRETE CURB AND GUTTER Curbing within Cedar Grove No. 1 and No. 2 consists of bituminous curb which is providing its primary function of containing drainage and traffic and providing a separation between street and yard. With the proposed bituminous overlay as outlined herein construction for concrete curb and gutter should be considered. This construction would involve removal of the existing bitumi- nous curb and constructing a B618 concrete curb and gutter. Restoration of boulevard and driveways will be required. AREA TO BE INCLUDED: The area to be included would be platted lots within Cedar Grove No. 1, No. 2, and No. 4 as indicated in the preliminary assessment roll located at the back of this report. COST ESTIMATES: Detailed cost estimate for bituminous overlay and bituminous overlay with concrete curb and gutter are presented in the Appendices located at the back of this report. These costs are summarized as follows: Page 3. 0021b Bituminous Overlay $419,400 Bituminous Overlay with Concrete Curb b Gutter $945,590 The total estimated costs presented above include contingencies and all related overhead. Overhead costs are estimated at 27% and include legal, en- gineering, administration and bond interest. ASSESSMENT: Assessments are proposed to be levied against the benefitted property. A preliminary assessment roll is included at the back of this re- port. Assessment rates are presented at various percentages of the total estimated cost per lot. �2 remaining costs will be financed from Fov- r„p1pase9, the major street fund for the City of Eagan. 4Cost percentages ase.u� 100%, 50%, or 25% of the total estimated cost per lot c rC �rese�4�-d ;or wart w&kk, & assessed`to the benefited property. based on REVENUE SOURCES: Revenue sources to cover the cost of this project "Masi"& each percentage of the assessable rate as presented in the preliminary assess - o -re ment roll da as follows: A. BITUMINOUS OVERLAY 100% Assessable Rate Street Street Assessment Major Street Fund Project Cost $419,400 $419,400 Page 4. 0021b Revenue Balance $419,400 - 0 - $419,400 - 0 - Project Cost Revenue Balance 50% Assessable Rate Street $419,400 Street Assessment Major Street Fund $419,400 25% Assessable Rate Street $419,400 Street Assessment Major Street Fund $419,400 B. BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER 100% Assessable Rate Street Street Assessment Major Street Fund $209,700 209,700 $419,400 $104,850 314,550 $419,400 Project Cost Revenue $945,590 $945,590 50% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment Major Street Fund $945,590 Page 5. 0021b $945,590 - 0 - $945,590 $735,890 209,700 $945,590 CK1r' Balance hdaw� SCHEDULE Present Feasibility Report Public Hearing Approve Plans 6 Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b Project Cost Revenue Balance 25% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment $631,040 Major Street Fund 314,550 $945,590 $945,590 - 0 - The contribution from Major Street Fund are the same for both bituminous overlay and bituminous overlay with concrete curb and gutter at the 50% and 25% of the assessable rate. It is assumed all costs associated with concrete curb and gutter construction will be assessed completely to the benefited property. SCHEDULE Present Feasibility Report Public Hearing Approve Plans 6 Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b S APPENDIX A COST ESTIMATE CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A) BITUMINOUS OVERLAY 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 1,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 60,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 85 Each Driveway restoration @ $200.00/each 17,000 Total Construction $314,500 +5% Contingency 15,730 0021b $330,230 +27% Legal, Engrng., Admin. & Bond Interest 89,170 TOTAL BITUMINOUS OVERLAY ......................... $419,400 Page 7. I B) BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 2,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 92,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 47,200 Lin.ft. Removing existing bituminous curb @ $0.50/lin.ft. 23,600 47,200 Lin.ft. B618 concrete curb b gutter @ $4.50/lin.ft. 212,400 430 Each Driveway restoration @ $200.00/each 86,000 32,000 Sq.yds. Sodding with 3" topsoil @ $1.80/Sq.yd. 57,600 Total Construction $709,100 +5% Contingency _ 35,460 $744,560 +27% Legal, Engrng., Admin. b Bond Interest 201,030 TOTAL BITUMINOUS OVERLAY WITH CONCRETE CURB ...... $945,590 Page 8. 0021b APPENDIX B PRELIMINARY ASSESSMENT ROLL CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A. BITUMINOUS OVERLAY Cedar Grove No. 1 Block 1, Lots 4-11 Block 2, Lots 13-34 Block 3, Lots 1-19 Block 4, Lots 1-9 Block 5, Lots 1-32 Block 6, Lots 1-20 Block 7, Lots 1-18 Block 8, Lots 1-5 Block 9, Lots 7-19 Block 10, Lots 1-24 Block 11, Lots 1-11 Cedar Pond Park; Lot 10, Block 4 Cedar Grove No. 2 Block 1, Lots 7-30 Block 2, Lots 1-27 Block 3, Lots 1-19 Block 4, Lots 14-27 Block 5, Lots 1-36 Block 6, Lots 1-17 Block 7, Lots 1-52 Block 8, Lots 1-18 0021b Total Cost No: of Lots Per Block Cost/Lot 8 $ 7,803 $975 22 21,458 975 19 18,532 975 9 8,778 975 32 31,211 975 20 19,507 975 18 17,556 975 5 4,877 975 13 12,680 975 24 23,408 975 11 10,729 975 8 7,803 975 24 $ 23,408 975 27 26,333 975 19 18,532 975 14 13,655 975 36 35,113 975 17 16,581 975 52 50,718 975 18 17,556 975 Page 9. Cedar Grove No. 4 Block 1, Lots 16-17 Block 3, Lots 7-15 Block 4, Lots 20-39 Block 6, Lots 17, 18, 19 TOTAL ...................... Total Cost No. of Lots Per Block Cost/Lot 2 $ 1,951 $975 9 8,778 975 20 19,507 975 3 2,926 975 430 $419,400 a3 ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. lyi3f'_y/'T" Cost/Lot 100% Assessable Rate $975.00 50% Assessable Rate 487.50 25% Assessable Rate 243.75 Page 10. 0021b C o s r1L ° r/yER2 st/L ont $1 2 . 1 3.3 �eST�'ar�M°MrN w�. /Syr I ;= 8 or 8„ y vs a3 .223 B. BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER Cedar Grove No. 1 Cedar Grove No. 2 No. of Lots Block 1, Lots 4-11 8 Block 2, Lots 13-34 22 Block 3, Lots 1-19 19 Block 4, Lots 1-9 9 Block 5, Lots 1-32 32 Block 6, Lots 1-20 20 Block 7, Lots 1-18 18 Block 8, Lots 1-5 5 Block 9, Lots 7-19 13 Block 10, Lots 1-24 24 Block 11, Lots 1-11 11 Cedar Pond Park; Lot 10, Block 4 8 Cedar Grove No. 2 Cedar Grove No. 4 Block 1, Lots 16-17 2 Block 3, Lots 7-15 9 Block 4, Lots 20-39 20 Block 6, Lots 17, 18, 19 3 TOTAL ...................... 430 Page 11. 0021b Total Cost Per Block $ 17,592 48,379 41,782 19,791 70,369 43,981 39,583 10,995 28,588 52,777 24,190 17,592 Total Cost Per Block $ 52,777 59,374 41,782 30,787 79,166 37,384 114,350 39,583 $ 4,398 19,791 43,982 6,597 $945,590 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 $2,199 2,199 2,199 2,199 No. of Lots Block 1, Lots 7-30 24 Block 2, Lots 1-27 27 Block 3, Lots 1-19 19 Block 4, Lots 14-27 14 Block 5, Lots 1-36 36 Block 6, Lots 1-17 17 Block 7, Lots 1-52 52 Block 8, Lots 1-18 18 Cedar Grove No. 4 Block 1, Lots 16-17 2 Block 3, Lots 7-15 9 Block 4, Lots 20-39 20 Block 6, Lots 17, 18, 19 3 TOTAL ...................... 430 Page 11. 0021b Total Cost Per Block $ 17,592 48,379 41,782 19,791 70,369 43,981 39,583 10,995 28,588 52,777 24,190 17,592 Total Cost Per Block $ 52,777 59,374 41,782 30,787 79,166 37,384 114,350 39,583 $ 4,398 19,791 43,982 6,597 $945,590 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 $2,199 2,199 2,199 2,199 .( I ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. The cost/lot for 50% and 25% of the assessable rate assume all costs associated with concrete curb and gutter con- struction will be assessed entirely to the benefited property. 100% Assessable Rate 50% Assessable Rate 25% Assessable Rate 0021b FYf YY,W4 Cost/Lot $2,199 1,711 1,467 Page 12. �r yr Y39 3 V,?'o /88 ar a93W li�/a7 Cost/Lot /Month X9.8 2 0 .8 l OS71OT /INOIV .d Ii / 73GS/- 36 ;toia 2853 /S ay vs /3 vs I 1 10 LA V;2: 2 P 0! 1 0 ES 34 9 2 le 33 D: :v:..;: 32 12 3 1 13 32 Z 4 31 14 m I I : ; 4 15 16 3111 tu 3 20 3 Is 30 4 x17 29 7 TO 28 a 12 279 10 lz 24 23 22 zl zo 11 14 to 2 CEDAR GROVE No. 1"'` ';:'` i5y 8 LOT ! EOUrVALENT RANDOM CRACKING 4 --j 17 F MAP CRACKING 5 16 or>gA CEDAR POND 0 MULTIPLE AND 6 PARK . . ERODED CRACKING 15 7 . . . . . . . . . 17 A CRITICAL DRIVEWAY 14 IB Rl? FILE No. 49229 EAGAN, MINNESOTA 13 9 16 NNESTROO, ROSENE, AKDERILIK & ASSOC, INC. C. S A. H. Ab. 30 CONSM" arimns -T--) r 1wrm ALE: I"= 20t 19 or>gA 0 23 12 . . 5 . . . . . . . . . 17 IB Rl? 9• 16 10 9 lo. 7 Z CO w A 3 1 B . 10 I 1wrm ALE: I"= 20t 1 `[ �:' is i' [i' '!. _ k ,' J �� .... _ t( ...„ It 1 1 MIMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 4, 1982 SUBJECT: INFORMATIONAL MTC Letters Enclosed are copies of two letters which were sent to the MTC, one pertaining to the Cedarvale Shopping Center park & ride site, and the second letter requesting information as to why an MTC express route was not designated from St. Paul to the Zoological Gardens. I.R. Bond Letter Also enclosed is a copy of a letter that was prepared for Repre- sentative Frenzel in response to his request for a position from the City Council on (1) proposing a minimum tax on municipal bonds, and (2) restrictive guidelines on industrial revenue bonds. Journalism Intern Lisa Flemming, who resides on Diffley Road and has resided in the City of Eagan all of her life, was selected by the History Committee to fulfill the internship created by the City Council during the summer months. The purpose of the internship is to complete the history document for the City of Eagan as well as prepare that document. for publication and distribution as a part of the library dedication late this fall. Lisa has written articles for the Eagan Chronicle, has just completed her degree from the College of St. Thomas in journalism, and was agreeable to commit her time through early fall to the Eagan history project. She will be compensated at $4.25 an hour which is the bottom of the range for interns, the internship range is $4.25 - $5.00 per hour depending upon their experience and level of education completed. Household and Population Projection Update for the City of Eagan Enclosed is a copy of a Household and Population Projection Update for the City of Eagan that was prepared by the Planning Department. It was startling to me to see the present population projection of 25,107 as of May 14, 1982. I believe the City Council will find this report extremely interesting. The report is to be used as a part of Jack Boarman's work, Tim Erkilla's work and other projects that are ongoing with the City of Eagan. June 15, 1982 City Council Tentative Agenda Enclosed for your information is a rough draft copy of the June 15, 1982 City Council agenda. _ ityACmInistrator SEA SLOMOUIST MAYOR THOMAS ELAN CITY. OF EAGAN JAMES A. SMITH JERRY THOMAS THEODORE WACHTER L%_1P39S PILOT RNOS ROAD -' COUNCIL MEMBERS V.("P.01 80X.]1199 !,� 'EAGAN, MINNESOTA' June 3, 1982 — PHONE 454-8100 LAWRENCE R SCHUMI CIVIL ENGINEER• METROPOLITAN TRANSIT COMMISSION 801 AMERICAN CENTER BLDG 150 E KELLOGG BLVD ST PAUL MN 55101 Re: MTC Park & Ride Site/Bus Shelter Propc Dear Mr. Schumi: THOMAS HEDGES CITY ADMINISTRATOR EUGENE VAN OVERSEKE CITY CLERK acent to Cedarvale In official action that was taken by the Eagan City Council at a regular meeting held on Tuesday, June 1, 1982, the recommendation of a special task force, the Cedarvale Transportation Advisory Committee, to request a park and ride site/bus shelter to be located adjacent to the Cedarvale Shopping Center in the City of Eagan was approved. This task force, appointed by our Mayor, Bea Blomquist, was formed late last summer to investigate the overall transportation needs for the Cedarvale Shopping Center area which includes some 100 businesses. A study was made of trunk highways and local streets as well as MTC bus service. A meeting was held in this office on December 18, 1981 at which time you were present representing the MTC along with representatives of MnDOT to discuss the possibility of park and ride facilities in that general area. It was agreed at that meeting that both representatives of the MTC and MnDOT would study a number of alternatives to enhance traffic flow and bus service for the area. These studies were completed and a presentation was made by Mr. Dick Elasky of MnDOT at the most recent Cedarvale Area Transportation Committee meeting held on May 19, 1982. At that meeting, seven (%) proposals concerning park and ride sites were given consideration. The proposal that was accepted by both the ad hoc committee and City Coun- cil was proposal number seven which provides- a connection from the Cedar - vale Shopping Center parking lot between Robert's Drug and Mid America National Bank to old highway 13 and also a park and ride site immediately west and adjacent to the Cedarvale Shopping Center parking lot and described as south of said connection. It is the understanding of the City of Eagan that the total cost for this park and ride site to the MTC is approximately $22,000 and that it would accommodate seventy plus cars per day. The City of Eagan is responsive to the proposal and therefore is encouraging the MTC to proceed with plans and specifications for the development of a park and ride site at that location as soon as possible. THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. City of Eagan/Park & Ride Site June 3, 1982 Page Two If you want more specific questions regarding the use City of Eagan once the turn contact this office at any time. Sincerely, rwwoo lf. Thomas L. Hedge City Administrator information regarding the site and/or have of public right of way to be owned by the back from MnDOT is completed, feel free to TLH/hnd cc: Mayor Bea Blomquist Cedarvale Area Transportation Committee Dick Elasky, Assistant District 9 Engineer Tom Colbert, Director of Public Works BEA BLOMOUIST MAYOR THOMASEGAN JAMES A. SMITH JERRY THOMAS THEODORE WACHTER COUNCIL MEMBERS June 3, 1982 JOHN FARRELL ASST GENERAL MANAGER TRANSPORTATION METROPOLITAN TRANSIT 3118 NICOLLET MINNEAPOLIS MN 5540E CITY OF EAGAN MS PILOT KNOB ROAD P.O. BOK 41199 EAGAN,MINNESOTA ' SS1:] PHONE 454-8100 COMMISSION THOMASHEDGES CITY AOMINISTRATUR EUGENEVAN OVERBEKE C1 TY CLERK Re: Route #57 Service Between Downtown Minneapolis & Minnesota Zoological Garden Dear Mr. Farrell: The City of Eagan is very pleased with action that was taken by the MTC to establish Route #57 which is an express bus service between downtown Minneapolis and the Minnesota Zoological Gardens. I was a guest last Thursday, May 27, 1982, at a function you sponsored in downtown Minne- apolis announcing the new bus route service. At the City Council meeting which was held on June 1, 1982, a question was raised by a member of our City Council as to why an express bus service does not exist between the City of St. Paul and Minnesota Zoological Gardens similar to that offered to downtown Minneapolis. I would like for you to comment on this question to satisfy our curiosity as to whether such a service is under consideration and, if not, why an express service has not been considered from that city to the zoological gardens. Thank you for your time and we will await a response from your office. Sincerely, Bea Blomquist Mayor THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. BEA BLOMOUIST MAYOR THOMAS ELAN CITY OF EAGAN JAMES A. SMITH on two JERRY THOMAS important issues THEODORE WACHTER 1195 PILOT KNOB ROAD COUNCIL MEMBERS P.O. BOK 91199 issue is a minimum ' EAGAN, MINNESOTA interest and the 5919] . issue PHONE 451-8100 June 3, 1982 place THE HONORABLE BILL FRENZEL' THE UNITED STATES HOUSE OF REPRE`§iTATIVES 1026 LONGWORTH OFFICE BLDG WASHINGTON DC 20515 Re: Proposed Congressional Action THOMASHEDGES CITY ADMINISTRATOR EUGENE VAN OVERBEKE CITY CLERK Bond Interest to be auDlect to a minimum fax & Restrictive Use of Industrial & Commercial Dear Representative Frenzel: Our City Council is grateful for your letter requesting input on two very important issues affecting economic growth in our community. The first issue is a minimum tax on municipal bond interest and the second issue is the apparent movement by the United States Congress to place heavy restrictions on the issuance of industrial and commercial development bonds by municipalities. At our last regular City Council meeting which was held on June 1, 1982, it was the unanimous position of my fellow City Councilmembers and myself that municipal bond interest should not be subject to a minimum tax. It is becoming difficult, in the present economy, to sell municipal bonds at a favorable interest rate due to the other types of tax incentives that are available to sophisticated investors. A minimum tax placed on municipal bond interest could create a problem for our municipality as well as others to attract competitive bidding, thus receiving higher interest rates for future municipal bond sales. The City of Eagan is a growth community and has been extremely active in the municipal bond market. The offerings have ranged from tax exempt mortgage financing to revenue bonds and assessment bonds. The ability to sell these bonds at a favorable rate compared with the current prime rate and other sources of financing is one limited means of continuing growth and prosperity in our community. Therefore, we appre- ciate your support in making efforts to defeat a minimum tax which is under consideration for municipal bond interest. The City of Eagan has maintained a thorough and sophisticated approach to the consideration and issuance of industrial revenue bonds in recent years. During 1979, our City Council deliberated for many meetings on the development of a policy and criteria document for the consideration and issuance of industrial development revenue mortgages and bonds. This policy statement was adopted by the City Council in December of 1979 and has been used as the guideline to applicants since that date. Our City Council has received a number of applications in the past three to four THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. City of Eagan/Representative Bill Frenzel June 3, 1982 Page Two years, many of which have been processed and approved, helping to stimu- late growth and development within the community. The City Council has also denied industrial development revenue mortgages that were not viewed to be in the best interest of the City, mainly as related to the comprehen- sive guide plan. The City Council is extremely conscientious about the public hearing process, reviewing in considerable detail financial positions of the applicants, how the particular application relates to the comprehen- sive guide plan as well as many other public policy issues that vary on each application. Our City Council is thorough and sensitive to the types of projects that should be approved under this method of financing. The Eagan City Council is supportive that guidelines should be placed on the issuance of industrial and commercial development bonds that curb the worst "abuses", however, not at the expense of discouraging the consideration of viable projects. A city council is best suited to determine whether a specific application for either industrial or commercial financing should be considered for that specific community. An office building, bowling alley or shopping center may be extremely important to one community, and under present economic conditions, the difference as to whether that commercial use is allowed to develop or not may be whether commercial revenue financing is granted. There has been some discussion by repre- sentatives in the United States Congress that commercial revenue financing be terminated and that only a tax exempt status be offered by a munici- pality for industrial uses. This approach is not feasible, realising that many cities do not have the type of industry that is classified as "manu- facturing" and, therefore, both industrial and commercial development revenue mortgages should be considered to allow further expansion and development of worldheadquarters, warehousing, shopping centers, medical buildings and other types of business activities that help to develop our communities. In summary, we are hopeful that legislation will not be adopted that restricts the issuance of industrial or commercial revenue bonds in our community due to a few cities which have "abused" the intent of industrial and commercial revenue bond financing. I would be more than happy to provide additional information regarding either of the above issues if it is helpful for legislation you wish to introduce or support. Please contact our City Administrator, Mr. Tom Hedges, or me at any time. Again, 1 thank you for notifying our City and allowing our City Council to provide input into the decision making process. Sincerely, Bea Blomquist Mayor �Q 13 SPECIAL CITY COUNCIL MEETING JUNE 21, 1982 6:00 P.M.. 1. Firefighers' Pension Plan 2. Project 342 "Cedar Grove 1st & 2nd Addition - Street Reconstruction" 3. Water Treatment Schedule 4. Other Business 5. Adjournment MEMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 18, 1982 SUBJECT: SPECIAL CITY COUNCIL MEETING A special City Council meeting is scheduled for 6:00 p.m., Monday, June 21, 1982, at the Eagan City Hall. Originally, the special City Council meeting was scheduled for 7:00 p.m.; however, due to a conflict with the Volunteer Firefighters, the meeting was moved up to 6:00 p.m. The Volunteer Firefighters have their regular Monday night training and a general meeting scheduled at 8:00 p.m., and, therefore, it was necessary to move the time schedule for the meeting from 7:00 to 6:00 p.m. Enclosed is a copy of the agenda for the special City Council meeting which has been properly posted. Firefighters' Pension Plan Enclosed is a copy of the memorandum to the Finance Committee that was copied to the City Council approximately two weeks ago that outlines the various alternatives discussed at a special City Coun- cil meeting on June 8, 1982. It was the consensus of the City Council that the IRA, alternative #4, be presented to the Pension Committee of the Relief Association. Enclosed is a copy of an excerpt from the League of Minnesota Cities magazine, October, 1981 issue, that addresses the use of IRA accounts for volunteer ambulance and fire fighers. It is very likely that legislation will be required in order to work out at transition from a defined benefit program to an IRA account if selected by the firefighters and City Council and due to the special intricacies of working out the required legislation, the City Administrator will await a consensus before proceeding with a proposed IRA Retirement plan. There are a number of memorandums and support data regarding pre- vious discussions to change from a defined benefit program to a defined contribution or other type of program. There are also some fact findings from Roger Katzenmaier, Gus Welter and the City Administrator. The City Council has received this information in the past. If any member would desire any or all of this informa- tion copied as resource data, please contact the City Administra- tor's office. Agenda Information Memo June 18, 1982 Page Two The City Administrator suggested at the last City Council meeting that the Director of Public Works and City Administrator have time to address issues that pertain to public works that are under con- sideration by the City Council. Two (2) specific items were placed on the agenda, one of which is Project 342, the Cedar Grove 1st and 2nd Addition Street Construction, and secondly a water treatment schedule to consider a water treatment plant revised study, survey and public hearing. Other items to discuss are seal coating, county road construction and any other items that the City Council may have questions about. Project #342 Enclosed is a memorandum and considerable information as it pertains to a report on the proposed Project #342 Cedar Grove 1st & 2nd Addition street reconstruction. This information has been prepared and/or coordinated by the Director of Public Works. Water Treatment Schedule The Director of Public Works and City Administrator would like to discuss the proposed time schedule for reconsideration of the water treatment plant, the progress of the feasibility report, a proposed survey to be considered as a City wide newsletter and time for a public hearing. There is no support information to send out with this scheduled item. The discussion is basically proposed as strategy planning with the City Council. Informative Mayor Blomquist, City Councilmember Egan and City Administrator Hedges all attended the League of Minnesota Cities meeting held in Rochester this week. Mayor Blomquist and City Administrator Hedges were in attendance on June 16 and 17 and City Councilmember Egan was present on June 17 and 18. The conference was well attended by elected and appointed officials from the State of Minne- sota and both Mayor Blomquist and I were members of the Planning Conference Committee and received positive input about the quality of the conference which I believe benefited persons who were in attendance. The City of Eagan was well represented at the various sessions. The Director of Finance and Building Inspector were also present for one day sessions to hear seminars that affect their respective positions. OZ �-Yl. City Administrator MEMO TO: FINANCE COMMITTEE MEMBERS JIM SMITH & TOM EGAN FROM: CITY ADMINISTRATOR HEDGES DATE: MAY 26, 1982 SUBJECT: VOLUNTEER FIREMEN'S RELIEF ASSOCIATION RETIREMENT PLAN Background The City Council received a memorandum from the City Administrator pro- viding a brief history of discussions that have taken place between the City Council and Volunteer Firemen's Relief Association regarding an increase or change in the association retirement plan. Also submitted for review by the City Council on March 23, 1982 was a memorandum prepared by Roger Katzenmaier addressing an independent study that he performed with Gus Welter that examined the conversion of the association's retirement program from a defined benefit plan to a defined contribution plan. The City Council received the reports and asked the Finance Committee to meet with Mr. Kat- zenmaier to review the lengthy memorandum. The meeting was scheduled and held on Tuesday, April 6, 1982. There was a great deal of discussion by the Finance Committee and Mr. Katzenmaier at that meeting, and as a result, the Finance Committee desired additional time to study the facts and prepare a recommendation for the City Council. A follow-up meeting was held on May 26, 1982 at which time several options were again discussed and a recommendation considered for review by the City Council at a special meeting. Recommendation The Finance Committee, in studying the information prepared by Mr. Katzen- maier, in addition to data supplied during the past several months, feels that there are four (4) options available regarding the Volunteer Firemen's Association Retirement Program. Those options are as follows: 1. Continue with the defined benefit program. 2. Convert to a defined contribution proposal as previously presented - by the City Council. 3. Provide a combination of the above two options by requiring a lump sum benefit only. 4. Convert the existing program to an IRA which allows for cash pay- ment to each volunteer fireman upon completing one year as a volun- teer fire fighter and each year thereafter. The Finance Committee feels a conversion to an IRA plan is a viable and suitable option to be considered by the City Council. Retirement Plan May 26, 1982 Page Two Action The City Council has agreed in recent months that the Finance Committee would be used to provide fact finding; however, the entire City Council would present and discuss a position as it relates to any change or increase in the retirement plan for the Volunteer Firemen's Relief Association. it is therefore the recommendation of the Finance Committee that the City Coun— cil hold a special City Council meeting and discuss their position. Once an option is agreed upon, it will then be presented to the pension committee for further consideration. ity Administrator 961 STANLEY PESKAR EDITOR'S:NOTE: The -questions below are typical of the thousands of Inquiries the League receives each year. For more comprehensive treatment of questions,'thel Information service of the league Is always available to municipal officials. PERSONNEL—RETIREMENT Does the new federal tax law solve the problem of what to do about a retirement program for ambulance and other volunteers? Apparently yes. Though the state legislature has not had an opportuni- ty to conform state tax laws to the federal laws, it is highly probable it will do so in the next session. Whether the state acts or not, "volunteers" and other city employees, regardless of whether or not they have another pension plan, may annually put up to $2,000 into an independent retirement account (IRA), free of federal taxes.' 14 Thus, cities can now determine how much to pay ambulance or firefighter= volunteers, make a direct payment to the volunteer, and let him or her decide whether to take the money as current compensation or put it in an IRA for retirement pur- poses. Money placed in IRAs is not tax- able in the year in which it is receiv- ed. Therefore, the entire amount can be invested and can earn a yield up to the date of retirement. When the volunteer retires, the payments are taxable, but presumably the recipient is in a lower tax bracket at that time because of lower income and in- creased exemptions or deductions or a combination of all three. The IRA has several advantages for the volunteer over participation in a more conventional retirement plan such as a local relief association. Since there is no vesting period, assets are not lost by failure to serve a minimum period. (Ten years is typical in most other plans.) Thus, there is full portability from one com- munity and job to another. Further, since the IRA belongs to the volunteer, it is not subject to manipulation through benefit for- mula changes by a board of trustees or the legislature. Consequently, the volunteer need not commit valuable time out of a busy schedule to par- ticipation in governance of a relief association. He or she need only select an IRA plan and determine THEIN WELL CO., Inc. Complete Well & Pump Service Since 1893 24 Hr. a Well Drilling a T.V. Well Inspection Well &Pump . Well Repair s Electric Logging Service e Pump Repair a Pump Sales Clara City, MN .................... 612-847-3207 Spicer, MN.......................612-796-2111 Rochester, MN...................507-288.5554 each year the level of participation which is appropriate. The IRA assets are a reserve of cash available to the volunteer in certain emergencies before retirement. The IRA thus provides a ready-made sur- vivor, disability, and burial benefit to the extent of funds in the account. Should volunteers need additional disability or survivor benefits, these can be purchased individually or by the city as part of the compensation package from an insurance com- pany. The IRA also permits selection of a money manager with an investment strategy or policy which suits the in- dividual economic or social goals of the volunteer rather than the objec- tives of the relief association trustees or state legislators. Finally, the use of current compensation (with volunteer option to purchase an IRA) to the volunteer ambulance or fire service permits city officials (mayor and clerk) to avoid responsibility for managing a local relief association, for preparing, reviewing, and filing complex financial reports, and for hassling with an organization which can be a major political force in the community. The new federal law offers a less complicated way to attract, retain, and provide security for a citizen resource which cities may increasing- ly need to rely upon to provide ser- vices in these times of contraction of financial resources. Footnotes Those coordinated employees covered by PERA would be subject to Social Security taxes and PERA deductions on their IRA contribu- tion, but it is unlikely that any volunteers would be paid the minimum $325 per month required for participation in the coordinated PERA-Social Security program. Thus, no federal deductions would be made. ' If the city has a local volunteer fire relief association, all of the 2% state fire aid must go to the relief association. If no local relief association exists, the 2% aid may be used for equipment, supplies, and buildings, and the city could put a comparable amount from other sources into current compensation which could then be used by individual firefighters for IRAs. IRAs could also be used to xgtplcnwnt u>isting relief ts.ociation benefits_ MINNESOTA CITIES seeks to implement a substantial governmental interest, directly ad- vances that interest, and reaches no further than necessary to accomplish the given objective. Though it ruled that the ordinance was valid in regard to the regulation of commercial speech, the plurality held that the ordinance was un- constitutional in its treatment of non- commercial speech. Although the or- dinance included a broad exception. for on-site commercial billboards, it permitted no similar exceptions for non-commercial speech. Justice White noted that the Supreme Court's recent free speech cases have consistently accorded non- commercial speech a greater degree of protection than commercial speech. The city's ordinance effec- tively inverted this judgment, affor- ding a greater degree of protection to commercial than to non-commercial speech. justice White stated that although a city may distinguish bet- ween the relative value of different categories of commercial speech, it does not have the same range of choice in the area of non- commercial speech to evaluate the strength of, or distinguish between, various communicative interests. The Court held that because some non- commercial messages could have been conveyed on billboards throughout commercial and in- dustrial zones, the city must similarly allow billboards conveying other non-commercial messages in those zones. The plurality specifically stated that it was not deciding whether a total prohibition of out- door advertising would be consistent with the First Amendment. Two justices, concurring in the judgment but not joining the opin- ion, stated their belief that this case in effect presented the total ban question. The effect of the or- dinance, they said, was to ban billboards completely. Their analysis would allow a city to impose such a total ban only if it shows that a suffi- Fast, efficient and repair of ,% Bergerson-Caswell is well equipped, not only for well drilling, but maintenance, too. If you have a reduced flow from an aging pump, or if you are starting to pump sand or other foreign materials, call us for an analysis of repairs. We can put new life into existing wells, quickly and economically. Call (612) 47&3121 Bergerson-Caswell, Inc. 5115 Industrial Street•Maple Plain, MN 55359 ciently substantial governmental in- terest is furthered by the ban, and that a more narrowly drawn restric- tion would not suffice. The three dissenting justices all recognized the probable effects of this holding. The decision arguably leaves a city wishing to respond to the hazards posed by billboards a choice between two equally un- satisfactory alternatives. One alter- native is to ban all signs of any kind. The second is to restrict commercial signs, but to permit all non- commercial signs no matter how numerous, large, damaging to the environment, or dangerous to motorists and pedestrians. Con- fronted with these alternatives, it is likely that most cities will do nothing. Cities contemplating action regard- ing billboards should examine this decision in determining the scope of their authority. Metromedia, Inc. v. City of San Diego (49 L.W. 4925, U.S. Sup. Ct., 1981). October 1981 13 TO: HONORABLE MAYOR AND CITY COUNCIIMEMBERS, C/O THOMAS L. HEDGES, CITY ADMINISTRATOR FRIM: THOMAS A. COLBERT, DIRECTOR OF PUBLIC WORKS DATE: JUNE 18, 1982 • o r• n•F 11111F�u •• • •� a r • In the early fall of 1980, the City Council directed staff to analyze the streets in the Cedar Grove Additions to evaluate their needs and maintenance requirements in order to maintain these streets to try to lengthen their ser- vice life before major reconstruction and replacement became necessary. Sub- sequently, the staff performed an experimental repair on West Marble Lane through the intersections of North and South Diamond Drive. The south half of Marble Lane was reconstructed after removing the deteriorated and fractur- ed existing bituminous surfacing. A 2" overlay was then placed over this section of Marine Lane to analyze the difference between removal and replace- ment prior to an overlay and the effects of just overlaying the existing bit- uminous. This "test" section has now gone through two winter/spring cycles. The results indicate that the south half of Marble Lane that was reconstruct- ed has experienced appmxi+mtely 80% less of reflective cracking through the 2" bituminous overlay. On the north half of Marble Lane, random cracking has ,eared which is a direct reflection of the random cracking that existed prior to the bituminous overlay. Subsequently, this random cracking will di- minish the expected additional life that could be provided by this corrective overlay. In the summer of 1981, the staff contracted with Midwest Pavement Management Inc. to perform a detailed analysis of the streets in the Cedar Grove lst and 2nd Addition. Their analysis consisted of traffic counts, traffic distribu- tion analysis, test core samples, and computerized pavement deflection eval- uation to determine the existing pavement stability. A copy of that report is attached for the Council's information. They were asked to evaluate 5 different possible alternatives as recommended by City staff. Their analysis was then computed and converted to an "expected life/annual cost" relation- ship as indicated on Page 12 of that report. During 1981, the City had Professional Services Group Inc. televise the san- itary sewer lines in the Cedar Grove 1st Addition to try to determine any potential corrective work that may be required. This closed circuit tele- vision investigation of the sanitary sewer indicated several areas that need corrective work due to settlement of pipes, misalignment of pipes, fractured pipes, protruding services, and extensive root infiltration which will great- ly increase the potential of sanitary sewer back ups. In addition, during the spring of 1982, the Public Works Utility Maintenance section performed an analysis of all sanitary sewer and storm sewer manhole castings and found that approximately 60% of these are in immediate need of reconstruction and repair due to deterioration. Based on the results of the televising of the 1st Addition, the staff then contracted during the spring of 1982 with Mid- west TV Inc. to televise the sewer lines in the 2nd Addition to try and de- termine if similar corrective work was necessary. The results of this work Project 342 June 18, 1982 Page two are not yet immediately available but are anticipated within the next three weeks. Subsequent to this pre -investigation work performed by staff, the results of this information were forwarded to the City's Consulting Engineering film of Honestroo, Rosene, Anderlik and Associates, Inc. for the preparation of a feasibility report to estimate the costs of repair and the resulting potential assessments associated with this work in the let and 2nd Additions. Copies of this feasibility report are also being forwarded to the Council for their re- view. Please keep in mind that this feasibility report is in a preliminary draft stage and is subject to revision after discussion between staff and Coun- cil. There are several concerns that have not been specifically addressed in the feasibility report that staff would like to bring to the Council's attention to receive further direction on before additional work is performed. These are summarized as follows: 1. Possible replacement of deteriorated blacktop curbing with concrete curb and gutter. 2. Required corrective construction to existing sanitary sewer and stone sewers. 3. Reconstruction of deteriorated manhole casting supports and catch basin structures.' . 4. Elimination vs. restoration of service drives (Nicols Road and County Road 30) . 5. Assessments against corner lots where only side streets are reconstructed/ upgraded. 6. Potential need of increasing the structural strength of minor "collector" streets with potential sidewalks/pathways/striped walking lanes due to the closure of Cedar Elementary School and the potential of increased busing and/or increased pedestrian traffic through the 2nd Addition to Rahn Elementary School. 7. Revenue sources: assessments vs. major street trunk fund 8. Consideration of additional stone sewer facilities in certain areas to increase drainage capabilities. M. . «y is k, 0 %Ko) The existing bituminous curbing has been in place for 20+ years and is show- ing signs of deterioration resulting from extensive weathering, snowplow main- tenance, etc. With the placement of a proposed 2" bituminous overlay of the existing surface, these subdivisions will experience decreased curb heights Project 342 June 18, 1982 Page three which will decrease the capabilities of confining drainage from major storms within the street area and will require extensive driveway approach recon- struction. If the streets were reconstructed with concrete curb and gutter, it would increase the drainage capabilities and minimize damage resulting from major storms and would greatly extend the life of the streets in these subdivisions. However, there is greater cost associated with this improve- ment as compared to.a repair and maintenance of the existing street surfac- ing. REPAIR OF EXISTING SANITARY AND STORM SEWERS I will be available to discuss in further detail the condition of the exist- ing sanitary and storm sewers in these Additions at the meeting to be held between staff and Council to discuss this proposed project. The results of the first internal televising report indicate that there are several areas that need reconstruction. This work should be performed prior to any repair work to the surface to minimize the potential of construction patching in the future. An inspection by the Utility Maintenance section indicates that the great majority of manhole castings for sanitary and storm sewers within these Addi- tions were placed without adequate grouting and/or support rings. subsequent- ly, these supports are deteriorated which results in infiltration around these structures which will create the potential of extensive future patching to correct these situations in the future. �iuuuU�Ci'��la��:�i � •: •� . With the completion of the Cedar Avenue freeway, Nicols Road (County Road 23) is anticipated to be turned back from the County to the City. The traffic volumes on this section of road have greatly decreased since the opening of the Cedar Avenue freeway. Subsequently, where it was once considered a major arterial, it will be reclassified to a City collector status. Subsequently, there is a question as to whether the frontage roads along Nicols Road will be necessary in the future. If not, should extensive reconstruction be per- formed to these severely deteriorated frontage roads or should they be elimina- ted and the dollars spent in providing direct driveway connections to existin(* Nicols Road and returning this frontage area to open space front yard for the adjacent structures? Presently, there are several houses located north of Cedar Elementary School which take direct access onto Nicols Road and several which take direct access by way of a severely deteriorated frontage road. The staff would recommend that these services drives be eliminated and reconverted to front yard space with direct driveway connections being made to Nicols Road. [w•7:4�i. MGM :r.Y.7�-�7uia •ry Should assessments be spread on a per lot basis equitably throughout the Addi- tion or should assessments be based on the front food method with corner lots receiving a greater assessment due to their increased frontage? In addition, should corner lots that have frontage on streets not to be repaired be assess- ed for the improvement of the streets adjacent to their side yard areas? Project 342 June 18, 1982 Page four With the recent closure of Cedar Elementary School, students in the 1st and 3rd Additions will be transferred to Rahn Elementary School south of the 4th Addition. Recently, there has been discussion as to whether the students on the north side of County Road 30 will be bused to Rahn Elementary. If so, should an internal "collector" street be designated through the 2nd and 4th Addition for this bus traffic? If so, that designated street should be up- graded to handle the anticipated heavy traffic loads associated with school buses. If the busing alternative is not realized, there will be increased pedestrian traffic through the 2nd and 4th Addition to Rahn Elementary School. If this is the case, should tyre be consideration given to again designating a "collector" street in either upgrading this designated street to a wider width to provide on -street designated walking lanes or should a separate de- tached sidewalk/pathway be constructed for this anticipated increased pedes- trian traffic? Since these streets were constructed in the late 50's and early 60's, they have been in service for approximately 20+ years. This is the average life expectancy of a bituminous roadway. In addition, the design standards that they were constructed to,provide for apprcximately 50% less structural strength than present day standards. As such, what consideration should be given towards assessments of benefited properties for not only maintaining these streets but upgrading then to the structural strength necessary to handle the normal traf- fic loads associated with residential streets? While a detailed status analy- sis of the City's major street trunk fund is not yet conplete, preliminary in- dications are that due to recent major street construction projects (Pilot Knob Road, Wescott Read, Galaxie Avenue) and required future collector street construction requirements (Blackhawk Road, County Road 30, etc.), there are limited construction funds available to undertake a project where a major anticipated revenue is anticipated to be provided through this fund. In addi- tion, consideration should be given to potential precedence relating to this assessment policy and its impact on future needs for other Cedar Grove Addi- tions (3rd and 4th, etc.) . ADDITIONAL STORM SEWER CONSTRUCTIM There are certain area in these two Additions that presently either do not have adequate storm sewer facilities or the catch basin structures that are existing are below minimum inlet capacities for the normal 5 -year storm fre- quency designs. In addition, several of the catch basin grates are of the old design that have the inlet slats parallel to the curbing which present a hazard to bicycle traffic. Consideration should be given to potential re- placement of these castings, upgrading of existing storm sewer facilities and/or installation of additional storm sewer systems at critical areas. Project 342 Jame 18, 1982 Page five As can be seen by several of these areas of concern, the anticipated im- provement in the Cedar Grove 1st and 2nd Additions enccnipasses more than just routine maintenance and repair of the existing bituminous surfacing. I don't believe that routine normal maintenance procedures through the years could have eliminated or minimized any of these concerns. nue maj- ority of these concerns relate to the problems associated with streets that are reaching the end of their original anticipated life expectancy. Subsequently, staff would appreciate the opportunity to discuss in depth these concerns with the City Council to receive a defined direction as to has these problems should be approached. I will welcane the opportunity to respond to any questions and discuss this project in further detail with the City Council at their convenience. spectfull Resutani.ti�, Thamas A. Colbert, P.E. Director of Public Works TAC/jach cc - Bill Branch, Superintendent of Streets and Equipment Joe Connolly, Assistant Superintendent of Utilities -i EVALUATION-OFTHE PAVEMENTS in CEDAR GROVE NIO. I AND'2, 'for CITY OF EAGAN July 1981 QPM in;,. MIDWEST PAVEMENT MANAGEMENT, IANC. PAVEMENT MANAGEMENT'CONSULTANTS Sude 636.155-00 Wayzata Boulevard, Wayzata. Mmta, 1 55 1 3 - 9V .16121.475-9957 Commission Nc-. 0180014-6 SUMMARY The evaluation of the pavements in Cedar Grove No. 1 and 2 in the City of Eagan (Figure 1) was conducted to determine what pavement work needs to be done and what the estimated costs would be. The evaluation consisted of the following: • Pavement strength determination with the Road Rater • A surface condition survey • Pavement thickness determination • Heavy Commercial traffic volumes • Analysis and cost estimates • Recommendations RECOMMENDATIONS The following recommendations are based on lowest cost per year of serviceable life before structural pavement repairs would be expected. 1. Remove and replace the alligatored and distorted areas. This represents 19,000 square yards of pavement or 20" of the area. The estimated unit cost of $4.00 per square yard is based on removal by milling at $1.50 per square yard and replacement with 2331 at $2.50 per square yard. It is recommended that the removal and replacement items be bid separately and that Mn/DOT Spec. 2332 be available as an alternate for the replace- ment material which may lower the unit cost for this portion of the work. 2. Apply a 1z" overlay to Garnet Lane and Drive, Zircon Lane and that portion of Jasper Drive west of Sandstone Lane. Again 2332 should be allowed as an alternate material for this portion. 3. Overlay the entire area with 3/4" of 2331 modified or Bloomington 2341 modified. This is expected to give 15 to 20 years of service- able pavement life before structural maintenance would be required, resulting in the lowest overall per year cost. It is also expected that the frequency of seal coating would be much lower for the 2331 modified or the Bloomington 2341 modified. The estimated costs for this work on Cedar Grove No. 1 and 2 would be 5183,000.00 for 86,000 square yards of residential street. -3- FIGURE 1 LOCATION OF CEDAR GROVE NO. 1 AND 2 -4- INTRODUCTION The City of Egan requested that Midwest Pavement Management, Inc. evaluate the pavements in Cedar Grove No. 1 and 2 and provide the City with maintenance recommendations and corresponding cost estimates. The City does not have information regarding the design and construction of the pavements in Cedar Grove No. 1 and 2. The pavements have provided approx- imately 20 years of service and a general improvement is necessary at the time 7 to protect the existing investment and to minimize future pavement failures and maintenance costs. Several alternate improvement designs are considered to determine which would be most beneficial in terms of cost and expected life. The alternates considered are as follows: 1. Crack filling with seal coat application (single or double) g2. Patch and repair with seal coat application 3. Patch and repair with bituminous overlay (determine minimum thickness) 4. Overlay only with recommended bituminous thickness Also, the economic and practical feasibility of including a filter fabric in specified locations in lieu of patch and repair prior to overlay was considered. -5- THICKNESS OF EXISTING PAVEMENT To determine the thickness of the existing pavement, eight locations were sampled by drilling a small (1 inch) hole into the pavement and measuring the thickness. The bituminous thickness (listed in Table 1) average is 2.56 inches with a coefficient of variation of 19 percent. The aggregate base averaged 3 inches at the locations sampled, resulting in an average Granular Equivalent thickness of 8 inches. (, rsv ) Presr„t �es, fo, f,./ Slrret Ovsp.. stn„�1era� �N4.9 dare 8 Xu.'ACe 12, �6rdx✓/aeEfV'V:/rntae-- f'.- ff-ru vr< i Itr—y +X f21 - vs 8C�.E e-As6ny =7 sa% Aei,c,eaej TABLE 1. Measurements of the bituminous layer thickness in Cedar Grove ,, o; ,F,.rs/.leky,, No. 1 and 2 Bituminous Point No. Thickness Street (Addn) 1 3.0” Diamond (1st) 2 2-3/4" Opal (1st) 3 2-1/2" Zircon (1st) 4 3" Diamond (2nd) 5 311 Sandstone (2nd) 6 2-1/2" Amber (2nd) 7 1-3/4" Jasper (2nd) 8 2" Jasper (2nd) Average = 2.56 inches Standard deviation = 0.48 inch -6- l I I TRAFFIC The streets evaluated are functionally classified as residential. The volume of traffic for residential streets is normally under 400 vehicles per day. Of this traffic, only the Heavy Commercial traffic need be con- sidered for pavement thickness design purposes. The predominant Heavy Commercial vehicles that travel these streets are garbage trucks, school buses (Table 2), and City maintenance vehicles. There are between 5 and 7 garbage trucks in Cedar Grove No. 1 and 2 per week. Other Heavy Com- mercial traffic such as delivery trucks are normally much lighter than the garbage trucks and school buses. There are no MTC buses on these residential streets. The accumulation of truck traffic on these streets results in an approximate Sigma N18 of 30,000 or less over a 20 year period. This is well within the minimum design section of the Bituminous Pavement Design Charts in the Mn/DOT Road Design Manual. TABLE 2. School Bus Routes (All 66-72 passenger) in Cedar Grove No. 1 and 2 ��^SSiJ�r .rl [(^n_r 4TfPr `d'�P.� �vf Lu �rC/•.r L�r.i, .0/n: .n'7 1ST ADDITION Street Termini Number of Routes Diamond Drive All 1 Garnet Lane Diamond Drive to Topaz Lane 2 Topaz Lane Garnet Lane to Zircon Lane 2 Topaz Lane Co. Rd. 30 to Zircon Lane 1 Zircon Lane All I 2ND ADDITION Coral Lane All 2 Diamond Drive Co. Rd. 30 to Coral Lane 2 Jasper Drive Rahn Road to Sandstone Drive 2 Marble Lane W. Jct. Diamond Dr. to Nichols 2 Marble Lane Sandstone Dr. to W. Jct. Diamond 2 Dr. Sandstone Drive Coral Lane to Jasper Drive 2 Sandstone Drive Jasper Drive to Marble Lane 1 _-7- THICKNESS DESIGN IWithin the Mn/DOT Bituminous Pavement Design procedure, the pavement design is based on the maximum allowable deflection during the spring thaw period. Table 3 lists the present estimated spring deflection for each of the streets in Cedar Grove No. 1 and 2. These deflections are calculated from the deflec- tions measured with the Road Rater using relationships developed by Mn/DOT. The last column in Table 3 indicates the increase in G.E. recommended to reduce the deflections to the recommended value. Five of the seven streets in the 1st Addition indicate a need for an increase in structure while only three of the nine streets in the 2nd Addition require additional structure. l 1 TABLE 3. Summary of pavement strength analysis 1 1st ADDITION 0.069 0.070 Diamond Drive 0.061 Measured Allowable Additional 0.075 Deflection* Deflection* G.E. Required 1 (inches) (inches) inches Diamond Drive 0.079 0.070 2.4 Garnet Lane & Drive 0.096 0.080 4_2 Sapphire Lane 0.067 0.070 Emerald Lane 0.072 0.075 --- Opal Drive 0.092 0.080 3.2 Zircon Lane 0.083 0.070 3.4 Topaz Drive 0.072 0.070 0.6 2ND ADDITION Marble Lane 0.069 0.070 Diamond Drive 0.061 =__ 0.070 Moonstone Drive 0.071 0.075 Amber Drive 0.085 0.080 1.2 Amber Court 0.092 0.085 1_6 Limestone Drive 0.072 0.075 Sandstone Drive 0.075 0.075 --- Coral Lane 0.075 0.075 --- Jasper Drive 0.085 0.070 3.9 j The values are expressed as an equivalent Benkelman Beam deflection and represent the mean plus two standard deviation values. 1 - -8- SURFACE CONDITION A surface condition survey of the pavement was conducted to determine the type and quantity of distress that is present. The type of distress and the area affected that are relevant to the evaluation are as follows: Distress Area of Pavement Affected Alligator Cracking 17,000 sq. yds. Distortion 4,000 sq. yds. 1 Block Cracking 18,000 sq. yds. A portion of the alligator cracking and block cracking is formed by very narrow to hairline cracks. Although these are hard to see, they will become more dominant in the future and should be considered at this date. / Several of the streets evaluated such as Diamond Drive in the 2nd Addition, have extensive alligator cracking and patching while showing that the strength was adequate. This type of condition is common in instances where the truck traffic has provided continued compaction of the aggregate base and upper portion of the subgrade while causing cracking of the asphalt surface. The other streets that have higher deflections with minimal surface distress would show the same response if subjected to increased volume of truck traffic. 1 Removal and replacement of the areas with alligator cracking is normally recommended to avoid maintenance problems in the future caused by the reflec- tion of those cracks if overlayed or to avoid the development of potholes. -9- EXPECTED PERFORMANCE OF ALTERNATES CONSIDERED The four alternates considered and their expected life are as follows: I D — _10- Expected Time to Structured Alternate Maintenance 1. Crack fill and seal coat 1 year 2. Patch and repair with seal coat 7 - 10 years 3. Patch and repair with overlay 15 - 20 years 4. Overlay 7 - 10 years The years of performance before additional maintenance would be required is described as follows: 1. One year of performance would be expected for crack fill and seal coat. There are a number of areas with substantial alligator cracking. Alli- gator cracks form blocks of bituminous pavement with an average dimension of 6 inches or less. Crack filling these areas would be very difficult and do not effectively seal out moisture in these forms of cracking. The cracks will be present and open the following spring, allowing water to enter the base and subgrade below resulting in further deterioration of the pavement. 2. Seven to ten years of performance would be expected for patch and repair with seal coat. The controlling factors for this alternate are the existing block and longitudinal cracking that will slowly continue to deteriorate and eventually require maintenance. The cold joints surround- ing all the patch and repair areas also will have some localized deterior- ation requiring future maintenance. However, it is expected that the maintenance requirements would not be very extensive. 3. Fifteen to twenty years would be expected from a patch and repair and .•- overlay. This alternate would provide service equivalent to what would be expected from a new pavement. Weathering and spring will be the dominant factors controlling the length of service expected. 4. Seven to ten years would be expected from an overlay. The predominant a factor that would limit the serviceable life of the overlay is the exist- ing alligator cracking. The cracking will reflect through the overlay in five to seven years and will become a maintenance item several years after. I D — _10- In addition to the four alternates, the City requested that the economic and practical feasibility of fabrics be considered in lieu of patch and repair prior to an overlay. Several brands of the fabrics have been in- stalled at various locations in Minnesota on an experimental basis and are being monitored by Mn/DOT. There has been no evidence in Minnesota to date, that the presence of these fabrics improve the performance of the pavement. The reported successes have been further south in milder climates. The installed price of a fabric at this time is equivalent to a 1i inch Mn/DOT Spec. 2331 overlay. Based on present performance of fabrics in Minnesota, we do not recommend they be used. For future reference, a small experimental installation may be justified. If such an installation would be made, inform Mn/DOT, Office of Research and Engi- neering Development, which is presently observing the performance of various fabric applications. I 1 — -11- I COST OF ALTERNATES The unit costs applicable to the various alternates were obtained from various paving contractors in the area and from recent bids. The costs 9s are listed in Table 4 and the alternate costs in Table 5. 8 TABLE 4. Unit Costs E E F G H Seal Coat"- Sq. Yd. 47.94 48.92 51.5f 49.71 ' See enclosed specification or use the Bloomington 2341 modified specification. " Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. ••• Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE S. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost - Annual Cost Quotes from Contractors 1/$43,000 Item Unit A B C D Overlay - 14" 2341 Sq. Yd. 52.00 $2.00 $4.30 51.65 Patch and Repair with 3/4" Overlay - 3/4" 2331 mod.* Sq. Yd. 51.05 51.25 -- 51.00 Remove and Replace" Sq. Yd. 52.00(a)-5.00 54.50 54.00 E E F G H Seal Coat"- Sq. Yd. 47.94 48.92 51.5f 49.71 ' See enclosed specification or use the Bloomington 2341 modified specification. " Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. ••• Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE S. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost - Annual Cost Crack Fill and Seal Coat $ 43,000 1/$43,000 Patch and Repair with Seal Coat $109,000 7/$15,570 Patch and Repair with 1-3/4" (Average) Overlay $266,000 20/$13,300 Patch and Repair with 3/4" Overlay (includes an additional 1-1/2" overlay on Garnet, Zircon and a part of Jasper) $183,000 15/512,200 Overlay (based on 30', 1-I/2" over- lay and 100'; 3/4" overlay) $132,000 10/513,200 The annual costs are based on the initial cost divided by the expected years of service. Factors such as interest rates, salvage value, etc. were not considered -12- k SPECIFICATIONS (to" CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT NO. 342 FOR EAG^ MINNESOTA 1982 Sul FILE No. 49229 /90"OAAWI l?"e-mef lq"44" a Yquocl&�f Ync. cw""&44q 'Cag4w," St PaW4 m4m""& !I June 7, 1982 Honorable Mayor b Council City of Eagan 3795 Pilot Knob Road Eagan, Mo. 55122 Re: Cedar Grove No. 1 5 No. 2 Bituminous Overlay Project 342 Our File No. 49229 Dear Mayor and Council: Transmitted herewith is our report for Cedar Grove No. 1 and No. 2, Bituminous Overlay. This report discusses existing street conditions within Cedar Grove No. 1 and No. 2 and presents cost estimates for street rehabilitation. We will be pleased to meet with the Council, and other interested parties, at a mutually convenient time to discuss this report. Yours very truly, BONESTR00, ROSENE, ANDERLIK b ASSOCIATES, INC. Mark A. Hanson MAH:li Approved by: 0021b I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. A. Hanson Date: June 7, 1982 Reg. No. 14260 Thomas A. Colbert Director of Public Works Date: CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY SCOPE: This report evaluate existing streets included within Cedar Grove No. 1 and No. 2 and presents improvement considerations in conjunction with their estimated cost and proposed assessments. Also included for consideration is construction of concrete curb and gut- ter in conjunction with a bituminous overlay. FEASIBILITY AND RECOMMENDATIONS: This project is feasible and is in accor- dance with requirements for street construction for the City of Eagan. The project as outlined herein can be carried out as one contract. Information pertaining to traffic volume, in-place cross section, measured deflections of the existing pavement, and required granular equivalencies are presented in a report prepared by Midwest Pavement Management, Inc. titled "Evaluation of the Pavements in Cedar Grove No. 1 and No. 2." DISCUSSION: Streets included within Cedar Grove No. 1 and No. 2 have provided approximately 20 years of service which for the most part is considered to be the normal life of a bituminous pavement. The existing street condition dic- tates that it is not cost effective from a maintenance standpoint to apply a seal coat application at this time. This report proposes to construct a 1-1/2 inch 2341 bituminous overlay for all streets included within Cedar Grove No. 1 and No. 2. A bituminous overlay must be constructed on stable bituminous surface if the overlay is to provide an estimated 15 year service life. If an on-going seal coat program is maintained, the service life could be extended even fur- ther. Many streets within Cedar Grove No. 1 and No. 2 have deteriorated to a Page 1. 0021b 0 point where extensive patching and other considerations must be given prior to constructing a bituminous overlay. Streets were therefore, classified into three categories for restoration purposes. Each category is summarized herein and also shown on each figure located at the back of this report. Also shown are critical driveways which additional work will be required to pr:ivide proper grade and drainage. RANDOM CRACKING: These are areas where the existing pavement has experienced longitudinal and transverse cracking. These cracks are primarily due to the expansion and contraction of the pavement because of temperature change and also the age of the existing pavement. The pavement for the most part is structurally adequate however a bituminous overlay is warranted due to surface wear and the degradation of the initial pavement properties. It is recommended in these areas cracks be blown clean and a crack sealer of emulsified asphalt be applied prior to the bituminous overlay. MAP CRACKING: These are areas where the existing pavement is 419b experienc- ing transverse and longitudinal cracking WC'. -L` are confined w smaller areas. The structural strength of the pavement is deteriorating at a quicker rate, however, it is not cost effective at this time to remove the existing pavement and patch. Two alternatives for treatment of this type of cracking are presented herein which from a cost standpoint are equal. One alternative is to apply additional thickness of bituminous mixture during the overlay process. How- ever, due to marginal driveway grades additional work will be required. fr.or to tC-C 0(2.4Over[u.4 The other alternative is to apply a fabric materials which isvfairly new%to Q ?>..ew.ewt- r«+d.�+-uh teeAl'%+ H4e..savke--in the northern states. Communities which have utilized fabric ma- terial on residential streets have been impressed with its performance to Page 2. 0021b date. The Minnesota Department of Transportation has utilized the fabric ma- terial on highways and have not experienced near the success. However, it is felt due to higher traffic volumes and speeds the fabric material does not perform nearly as well as on low volume and low speed streets. It is recom- mended the fabric material be utilized for this project. MULTIPLE AND ERODED CRACKING: These are areas where the existing pavement has to s Tt4('e wiere & kms lost .+s ftrer.4l: -4 k -A deterioratedn au e6 the only cost-effective approach from a maintenance standpoint is to remove the existing pavement. It is therefore recommended in these areas the \remaining pavement be removed and a 2 inch bituminous base course be constructed prior to the bituminous overlay. CONCRETE CURB AND GUTTER Curbing within Cedar Grove No. 1 and No. 2 consists of bituminous curb which is providing its primary function of containing drainage and traffic and providing a separation between street and yard. With the proposed bituminous overlay as':outlined herein construction for concrete curb and gutter should be considered. This construction would involve removal of the existing bitumi- nous curb and constructing a B618 concrete curb and gutter. Restoration of boulevard and driveways will be required. AREA TO BE INCLUDED: The area to be included would be platted lots within Cedar Grove No. 1, No. 2, and No. 4 as indicated in the preliminary assessment roll located at the back of this report. COST ESTIMATES: Detailed cost estimate for bituminous overlay and bituminous overlay with concrete curb and gutter are presented in the Appendices located at the back of this report. These costs are summarized as follows: Page 3. 0021b 0 Bituminous Overlay $419,400 Bituminous Overlay with Concrete Curb & Gutter $945,590 The total estimated costs presented above include contingencies and all related overhead. Overhead costs are estimated at 27% and include legal, en- gineering, administration and bond interest. ASSESSMENT: Assessments are proposed to be levied against the benefitted property. A preliminary assessment roll is included at the back of this re- port. Assessment rates are presented at various percentages of the total estimated cost per lot. Of remaining costs will be financed from For Cayes fs-e r�rroser) the major street fund for the City of Eagan. Cost percentages aceumedn cam_ of n /n 100%, 50%, or 25% of the total estimated cost per lot c rC "4• 1 resd ;ae r,ert wi4&," assessad<to the benefited property. bas cd ew REVENUE SOURCES: Revenue sources to cover the cost of this project 8e1auaing„ each percentage of the assessable rate as presented in the preliminary assess - o -re went roll as as follows: A. BITUMINOUS OVERLAY 100% Assessable Rate Project Cost Revenue Balance Street $419,400 Street Assessment $419,400 Major Street Fund - 0 - $419,400 $419,400 - 0 - Page 4. 0021b 50% Assessable Rate Street Street Assessment Major Street Fund 25% Assessable Rate Street Street Assessment Major Street Fund Project Cost Revenue Balance $419,400 $419,400 $419,400 $419,400 B. BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER 100% Assessable Rate Street Street Assessment Major Street Fund $209,700 209,700 $419,400 - 0 - $104,850 314,550 $419,400 - 0 - Project Cost Revenue Balance $945,590 $945,590 50% Assessable Rate (Bituminous Overlay Onlv) Street $945,590 Street Assessment Major Street Fund $945,590 Page 5. 0021b $945,590 - 0 - $945,590 - 0 - $735,890 209,700 $945,590 - 0 - Project Cost Revenue Balance 25% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment $631,040 Major Street Fund 314,550 $945,590 $945,590 — 0 — The contribution from Major Street Fund are the same for both bituminous overlay and bituminous overlay with concrete curb and gutter at the 50% and 25% of the assessable rate. It is assumed all costs associated with concrete curb and gutter construction will be assessed completely to the benefited property. SCHEDULE Present Feasibility Report Public Hearing Approve Plans b Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b APPENDIX A COST ESTIMATE CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A) BITUMINOUS OVERLAY 15,000 Sq. yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 1,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 60,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 85 Each Driveway restoration @ $200.00/each 17,000 Total Construction $314,500 +5% Contingency 15,730 $330,230 +27% Legal, Engrng., Admin. & Bond Interest 89,170 TOTAL BITUMINOUS OVERLAY ......................... $419,400 Page 7. 0021b B) BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 2,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 92,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 47,200 Lin.ft. Removing existing bituminous curb @ $0.50/lin.ft. 23,600 47,200 Lin.ft. B618 concrete curb & gutter @ $4.50/lin.ft. 212,400 430 Each Driveway restoration @ $200.00/each 86,000 32,000 Sq.yds. Sodding with 3" topsoil @ $1.80/Sq.yd. 57,600 Total Construction $709,100 +5% Contingency 35,460 $744,560 +27% Legal, Engrng., Admin. & Bond Interest 201,030 TOTAL BITUMINOUS OVERLAY WITH CONCRETE CURB ...... $945,590 Page 8. 0021b APPENDIX B PRELIMINARY ASSESSMENT ROLL CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A. BITUMINOUS OVERLAY Cedar Grove No. 1 Block 1, Lots 4-11 Block 2, Lots 13-34 Block 3, Lots 1-19 Block 4, Lots 1-9 Block 5, Lots 1-32 Block 6, Lots 1-20 Block 7, Lots 1-18 Block 8, Lots 1-5 Block 9, Lots 7-19 Block 10, Lots 1-24 Block 11, Lots 1-11 Cedar Pond Park; Lot 10, Block 4 Cedar Grove No. 2 Block 1, Lots 7-30 Block 2, Lots 1-27 Block 3, Lots 1-19 Block 4, Lots 14-27 Block 5, Lots 1-36 Block 6, Lots 1-17 Block 7, Lots 1-52 Block 8, Lots 1-18 0021b Total Cost No. of Lots Per Block Cost/Lot 8 $ 7,803 $975 22 21,458 975 19 18,532 975 9 8,778 975 32 31,211 975 20 19,507 975 18 17,556 975 5 4,877 975 13 12,680 975 24 23,408 975 11 10,729 975 8 7,803 975 24 $ 23,408 975 27 26•,333 975 19 18,532 975 14 13,655 975 36 35,113 975 17 16,581 975 52 50,718 975 18 17,556 975 Page 9. Cedar Grove No. 4 Block 1, Lots 16-17 Block 3, Lots 7-15 Block 4, Lots 20-39 Block 6, Lots 17, 18, 19 TOTAL ....................... Total Cost No. of Lots Per Block Cost/Lot 2 $ 1,951 $975 9 8,778 975 20 19,507 975 3 2,926 975 430 $419,400 e3 9 - ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. 100% Assessable Rate 50% Assessable Rate 25% Assessable Rate SUMMARY Cost/Lot $975.00 487.50 243.75 Page 10. 0021b Cnsr/tor/yBA2 Is yr 106 /4s O° /07.2s- 775= S-3 c3 q8 11 z&,'Ll /Lcft ont $1 2 . 1 3.3 �oST� nr�anavru / S/- �0 �� S.x yr7 e3 9 - z23 a B. BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER Cedar Grove No. 1 Cedar Grove No. 2 Total Cost No. of Lots Per Block Cost/Lot Block 1, Lots 4-11 8 $ 17,592 $2,199 Block 2, Lots 13-34 22 48,379 2,199 Block 3, Lots 1-19 19 41,782 2,199 Block 4, Lots 1-9 9 19,791 2,199 Block 5, Lots 1-32 32 70,369 2,199 Block 6, Lots 1-20 20 43,981 2,199 Block 7, Lots 1-18 18 39,583 2,199 Block 8, Lots 1-5 5 10,995 2,199 Block 9, Lots 7-19 13 28,588 2,199 Block 10, Lots 1-24 24 52,777 2,199 Block 11, Lots 1-11 11 24,190 2,199 Cedar Pond Park; Lot 10, Block 4 8 17,592 2,199 Cedar Grove No. 2 Total Cost No. of Lots Per Block Cost/Lot Block 1, Lots 7-30 24 $ 52,777 $2,199 Block 2, Lots 1-27 27 59,374 2,199 Block 3, Lots 1-19 19 41,782 2,199 Block 4, Lots 14-27 14 30,787 2,199 Block 5, Lots 1-36 36 79,166 2,199 Block 6, Lots 1-17 17. 37,384 2,199 Block 7, Lots 1-52 52 114,350 2,199 Block 8, Lots 1-18 18 39,583 2,199 Cedar Grove No. 4 Block 1, Lots 16-17 2 $ 4,398 $2,199 Block 3, Lots 7-15 9 19,791 2,199 Block 4, Lots 20-39 20 43,982 2,199 Block 6, Lots 17, 18, 19 3 6,597 2,199 TOTAL ...................... 430 $945,590 Page 11. 0021b .r . q ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. The cost/lot for 50% and 25% of the assessable rate assume all costs associated with concrete curb and gutter con- struction will be assessed entirely to the benefited property. SUMMARY Cost/Lot 100% Assessable Rate $2,199 50% Assessable Rate 1,711 25% Assessable Rate 1,467 Page 12. 0021b LOST/� /Sr - yr tam r 5'39- s9 310 ;t37 F3� /&/ — Cost/Lot /Month ay vs 13 t5 sl �< ] a (.. II 10 LA E 74 ;9..Y 1 19 'N` •meq\4:`�F?s%ti 9 9 •g. z l e �:��: =•K'' I I Q 77 Iz 72 z 31 z 14 10 71 Ill'` I] 70 4 29 Y. 6 26 13 27 9 10 ] 9 29 :4 09 //I2 I ` 1 2 '�F.''>tey$L. 13 26 24 12 YO 22 a.a'' IY 2 Z` 24 27 22 21 20 I w 10 19 10 CEDAR GROVE NO. Is _ /e LOT 9 2° ] 9 le O "ig, — — J EOUMALENf 1s e ► RANDOM CRACKING . .� 4 a. MAP CRACKING n 9 /� it I la 1e 17 12 11 10 9 ► 47 Ifi CEDAR POND I iG r> Z CO A O / ® MULTIPLE ANDa a 2 PARK I n; ERODED CRACKING " }u. ] I\ 7 H •• • - 2 7 a 7 1 f ] a 9 10 11 ♦ CRITICAL DRIVEWAY 14 `��' e � .� 1 tt.F _ 4 O ; .. FILE No. 49229 I7 `'{,', 9 3 EAGAN, MINNESOTA BONESTROO, AOSENE, ANDENUK K ASSOC, INC. T C S A. H A6. 30 COI10 [9aaEEa SI. P.I. I SI. AI111wwb Z Z N O O ISCALE: 1"=2od Z Z s:. CEDAR GROVE NO. 2 RANDOM CRACKING 2 Q:PR40SE1 3 14 Is IB Il IB 9 20 21 92 23 24 0 A E I MAP CRACKING 4 MULTIPLE AND 5 27 ERODED CRACKING 35 13 51 4 A CRITICAL DRIVEWAY It 3 -4 3 W 4 O 7 50 3 IS 3 30 ,4 33 4 :11 4 R 15 FILE No 49229 9 494 EAGAN, MINNESOTA 9 k 4U5 13 5 32 15 5 17 47 - 14 6 BoNLSTROO, ROWNE, ANDERUX & AS&Wft• 7 CONSULTIN Dann 46 • a 30 20 s 19 12 4510 29 a 12 S LE- ! 44 19 IS 17 16 15 14 13 A W432 21 27 22 24 Zt ZZ 121 26 20 30 19 ze 29 30 24 ID Q 39 28 a.sp 13 16 17 LQ 12 3710 9 a 7 SPECIAL CITY COUNCIL MEETING JUNE 21, 1982 6:00 P.M. 1. Firefighers' Pension Plan 2. Project 342 "Cedar Grove 1st & 2nd Addition - Street Reconstruction" 3. Water Treatment Schedule 4. Other Business 5. Adjournment MEMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 18, 1982 SUBJECT: SPECIAL CITY COUNCIL MEETING A special City Council meeting is scheduled for 6:00 p.m., Monday, June 21, 1982, at the Eagan City Hall. Originally, the special City Council meeting was scheduled for 7:00 p.m.; however, due to a conflict with the Volunteer Firefighters, the meeting was moved up to 6:00 p.m. The Volunteer Firefighters have their regular Monday night training and a general meeting scheduled at 8:00 p.m., and, therefore, it was necessary to move the time schedule for the meeting from 7:00 to 6:00 p.m. Enclosed is a copy of the agenda for the special City Council meeting which has been properly posted. Firefighters' Pension Plan Enclosed is a copy of the memorandum to the Finance Committee that was copied to the City Council approximately two weeks ago that outlines the various alternatives discussed at a special City Coun- cil meeting on June 8, 1982. It was the consensus of the City Council that the IRA, alternative #4, be presented to the Pension Committee of the Relief Association. Enclosed is a copy of an excerpt from the League of Minnesota Cities magazine, October, 1981 issue, that addresses the use of IRA accounts for volunteer ambulance and fire fighers. It is very likely that legislation will be required in order to work out at transition from a defined benefit program to an IRA account if selected by the firefighers and City Council and due to the special intricacies of working out the required legislation, the City Administrator will await a consensus before proceeding with a proposed IRA Retirement plan. There are a number of memorandums and support data regarding pre- vious discussions to change from a defined benefit program to a defined contribution or other type of program. There are also some fact findings from Roger Katzenmaier, Gus Welter and the City Administrator. The City Council has received this information in the past. If any member would desire any or all of this informa- tion copied as resource data, please contact the City Administra- tor's office. Agenda Information Memo June 18, 1982 Page Two The City Administrator suggested at the last City Council meeting that the Director of Public Works and City Administrator have time to address issues that pertain to public works that are under con- sideration by the City Council. Two (2) specific items were placed on the agenda, one of which is Project 342, the Cedar Grove 1st and 2nd Addition Street Construction, and secondly a water treatment schedule to consider a water treatment plant revised study, survey and public hearing. Other items to discuss are seal coating, county road construction and any other items that the City Council may have questions about. Project #342 Enclosed is a memorandum and considerable information as it pertains to a report on the proposed Project #342 Cedar Grove 1st & 2nd Addition street reconstruction. This information has been prepared and/or coordinated by the Director of Public Works. Water Treatment Schedule The Director of Public Works and City Administrator would like to discuss the proposed time schedule for reconsideration of the water treatment plant, the progress of the feasibility report, a proposed survey to be considered as a City wide newsletter and time for a public hearing. There is no support information to send out with this scheduled item. The discussion is basically proposed as strategy planning with the City Council. Informative Mayor Blomquist, City Councilmember Egan and City Administrator Hedges all attended the League of Minnesota Cities meeting held in Rochester this week. Mayor Blomquist and City Administrator Hedges were in attendance on June 16 and 17 and City Councilmember Egan was present on June 17 and 18. The conference was well attended by elected and appointed officials from the State of Minne- sota and both Mayor Blomquist and I were members of the Planning Conference Committee and received positive input about the quality of the conference which I believe benefited persons who were in attendance. The City of Eagan was well represented at the various sessions. The Director of Finance and Building Inspector were also present for one day sessions to hear seminars that affect their respective positions. P&Qz �q4l. City A C' d ministrator - MEMO TO: FINANCE COMMITTEE MEMBERS JIM SMITH & TOM EGAN FROM: CITY ADMINISTRATOR HEDGES DATE: MAY 26, 1982 SUBJECT: VOLUNTEER FIREMEN'S RELIEF ASSOCIATION RETIREMENT PLAN Background The City Council received a memorandum from the City Administrator pro- viding a brief history of discussions that have taken place between the City Council and Volunteer Firemen's Relief Association regarding an increase or change in the association• retirement plan. Also submitted for review by the City Council on March 23, 1982 was a memorandum prepared by Roger Katzenmaier addressing an independent study that he performed with Gus Welter that examined the conversion of the association's retirement program from a defined benefit plan to a defined contribution plan. The City Council received the reports and asked the Finance Committee to meet with Mr. Kat- zenmaier to review the lengthy memorandum. The meeting was scheduled and held on Tuesday, April 6, 1982. There was a great deal of discussion by the Finance Committee and Mr. Katzenmaier at that meeting, and as a result, the Finance Committee desired additional time to study the facts and prepare a recommendation for the City Council. A follow-up meeting was held on May 26, 1982 at which time several options were again discussed and a recommendation considered for review by the City Council at a special meeting. Recommendation The Finance Committee, in studying the information prepared by Mr. Katzen- maier, in addition to data supplied during the past several months, feels that there are four (4) options available regarding the Volunteer Firemen's Association Retirement Program. Those options are as follows: I. Continue with the defined benefit program. 2. Convert to a defined contribution proposal as previously presented by the City Council. 3• Provide a combination of the above two options by requiring a lump sum benefit only. 4. Convert the existing program to an IRA which allows for cash pay- ment to each volunteer fireman upon completing one year as a volun- teer fire fighter and each year thereafter. The Finance Committee feels a conversion to an IRA plan is a viable and suitable option to be considered by the City Council. Retirement Plan May 26, 1982 Page Two Action The City Council has agreed in recent months that the Finance Committee would be used to provide fact finding; however, the entire City Council would present and discuss a position as it relates to any change or increase in the retirement plan for the Volunteer Firemen's Relief Association. It is therefore the recommendation of the Finance Committee that the City Coun— cil hold a special City Council meeting and discuss their position. Once an option is agreed upon, it will then be presented to the pension committee for further consideration. CLQ �L4 L-tty Administrator `61 STANLEY PESKAR EDITOR'S NOTE: The questions below are typical of the thousands of Inquiries the League receives each year. For more comprehensive treatment of quesdomi, the information service of the league Is always available to municipal officials. PERSONNEL—RETIREMENT Does the new federal tax law solve the problem of what to do about a retirement program for ambulance and other volunteers? Apparently yes. Though the state legislature has not had an opportuni- ty to conform state tax laws to the federal laws, it is highly probable it will do so in the next session. Whether the state ads or not, "volunteers" and other city employees, regardless of whether or not they have another pension plan, may annually put up to $2,000 into an independent retirement account (IRA), free of federal taxes.' 14 Thus, cities can now determine how much to pay ambulance or firefighter' volunteers, make a direct payment to the volunteer, and let him or her decide whether to take the money as current compensation or put it in an IRA for retirement pur- poses. Money placed in IRAs is not tax- able in the year in which it is receiv- ed. Therefore, the entire amount can be invested and can earn a yield up to the date of retirement. When the volunteer retires, the payments are taxable, but presumably the recipient is in a lower tax bracket at that time because of lower income and in- creased exemptions or deductions or a combination of all three. The IRA has several advantages for the volunteer over participation in a more conventional retirement plan such as a local relief association. Since there is no vesting period, assets are not lost by failure to serve a minimum period. (Ten years is typical in most other plans.) Thus, there is full portability from one com- munity and job to another. Further, since the IRA belongs to the volunteer, it is not subject to manipulation through benefit for- mula changes by a board of trustees or the legislature. Consequently, the volunteer need not commit valuable time out of a busy schedule to par- ticipation itt governance of a relief association. He or she need only select an IRA plan and determine THEIN WELL CO., Inc. Complete Well & Pump Service Since 1893 24 Hr. a Well Drilling a T.V. Well Inspection Well rice Pump Service a Well Repair a Electric Logging a Pump Repair a Pump Sales Clara City, MN .................... 612-847-3207 Spicer, MN ....................... 612.796-2111 Rochester, MN...................507.288-5554 each year the level of participation which is appropriate. The IRA assets are a reserve of cash available to the volunteer in certain emergencies before retirement. The IRA thus provides a ready-made sur- vivor, disability, and burial benefit to the extent of funds in the account. Should volunteers need additional disability or survivor benefits, these can be purchased individually or by the city as part of the compensation package from an insurance com- pany. The IRA also permits selection of a money manager with an investment strategy or policy which suits the in- dividual economic or social goals of the volunteer rather than the objec- tives of the relief association trustees or state legislators. Finally, the use of current compensation (with volunteer option to purchase an IRA) to the volunteer ambulance or fire service permits city officials (mayor and clerk) to avoid responsibility for managing a local relief association, for preparing, reviewing, and filing complex financial reports, and for hassling with an organization which can be a major political force in the community. The new federal law offers a less complicated way to attract, retain, and provide security for a citizen resource which cities may increasing- ly need to rely upon to provide ser- vices in these times of contraction of financial resources. Footnotes Those coordinated employees covered by PERA would be subject to Social Security taxes and PERA deductions on their IRA contribu- tion- but it is unlikely that any volunteers would be paid the minimum $725 per month required for participation in the coordinated PERA-Social Security program. Thus, no federal deductions would be made. ' If the city has a local volunteer fire relief association, all of the 2% state fire aid must go to the relief association. If no local relief association exists, the 2% aid may be used for equipment, supplies, and buildings, and the city could put a comparable amount from other sources into current compensation which could then be used by individual firefighters for IRAs. IRAs could also be used to supptcmcnl i-v4ing relief association benefits. MINNESOTA CITIES TO: HONORABLE MAYOR AND CITY COUNCIINEZ�9BEF6, C/O THOMAS L. HEDGES, CITY 40 1 111111 AT6][r*TI.TFR9 DATE: JUNE 18, 1982 RE: PRO= 342, CEDAR GROVE 1ST AND 2ND ADDITION - STREET RECCNSTRUCTION In the early fall of 1980, the City Council directed staff to analyze:the streets in the Cedar Grove Additions to evaluate their needs and maintenance requirements in order to maintain these streets to try to lengthen their ser- vice life before major reconstruction and replacamnt became necessary. Sub- sequently, the staff performed an experimental repair on West Marble Lane through the intersections of North and South Diamond Drive. The south half of Marble lane was reconstructed after ramving the deteriorated and fractur- ed existing bituminous surfacing. A 2" overlay was then placed over this section of Marble Lane to analyze the difference between removal and replace- ment prior to an overlay and the effects of just overlaying the existing bit- uminous. This "test" section has now gone through tiro winter/spring cycles. The results -indicate that the south half of Marble lane that was reconstruct- ed has experienced.approximately 80% less of reflective cracking through the 2" bituminous overlay. On the north half of Marble Lane, random cracking has reappeared which is a direct reflection of the random cracking that existed prior to the bituminous overlay. Subsequently, this random cracking will di- minish the expected additional life that could be provided by this corrective overlay. In the summer of 1981, the staff contracted with Midwest Pavement Management Inc. to perform a detailed analysis of the streets in the Cedar Grove lst and 2nd Addition. Their analysis consisted of traffic counts, traffic distribu- tion analysis, test core samples, and computerized pavement deflection eval- uation to determine the existing pavement stability. A copy of that report is attached for the Council's information. They were asked to evaluate 5 different possible alternatives as recommended by City staff. Their analysis was then computed and converted to an "expected life/annual cost" relation- ship as indicated on Page 12 of that report. During 1981, the City had Professional Services Group Inc. televise the san- itary sewer lines in the Cedar Grove 1st Addition to try to determine any potential corrective work that may be required. This closed circuit tele- vision investigation of the sanitary sewer indicated several areas that need corrective work due to settlement of pipes, misalignment of pipes, fractured pipes, protruding services, and extensive root infiltration which will great- ly increase the potential of sanitary sewer back ups. In addition, during the spring of 1982, the Public Works Utility Maintenance section performed an analysis of all sanitary sewer and storm sewer manhole castings and found that approximately 60% of these are in immediate need of reconstruction and repair due to deterioration. Based on the results of the televising of the 1st Addition, the staff then contracted during the spring of 1982 with Mid- west TV Inc. to televise the sewer lines in the 2nd Addition to try and de- tennine if similar corrective work was necessary. The results of this -,vrk Project 342 Jame 18, 1982 Page two are not yet immediately available but are anticipated within the next three weeks. Subsequent to this pre -investigation work performed by staff, the results of this information were forwarded to the City's Consulting Engineering firm o£ Bonestroo, Rosene, Anderlik and Associates, Inc. for the preparation of a feasibility report to estimate the costs of repair and the resulting potential assessments associated with this work in the 1st and 2nd Additions. Copies of this feasibility report are also being forwarded to the Council for their re- view. Please keep in mind that this feasibility report is in a preliminary draft stage and is subject to revision after discussion between staff and Coun- cil. There are several concerns that have not been specifically addressed in the feasibility report that staff would like to bring to the Council's attention to receive further direction on before additional work is performed. These are summarized as follows: 1. Possible replacement of deteriorated blacktop curbing with concrete curb and gutter. 2. Required corrective construction to existing sanitary sewer and storm sewers. 3. Reconstruction of deteriorated manhole casting supports and catch basin_ structures. 4. Elimination vs. restoration of service drives (Nicoll Road and County Road 30) . 5. Assessments against corner lots where only side streets are reconstructed/ upgraded. 6. Potential need of increasing the structural strength of minor "collector" streets with potential sidewalks/pathways/striped walking lanes due to the closure of Cedar Elementary School and the potential of increased busing and/or increased pedestrian traffic through the 2nd Addition to Rahn Elementary School. 7. Revenue sources: assessments vs. major street trunk fund B. Consideration of additional storm sewer facilities in certain areas to increase drainage capabilities. MYLACEMENT CF BITUTINMS CURBING The existing bituminous curbing has been in place for 20+ years and is show- ing signs of deterioration resulting from extensive weathering, snowplow main- tenance, etc. with the placement of a proposed 2" bituminous overlay of the existing surface, these subdivisions will experience decreased curb heights Project 342 June 18, 1982 Page three which will decrease the capabilities of confining drainage from major storms within the street area and will require extensive driveway approach recon- struction. If the streets were reconstructed with concrete curb and gutter, it would increase the drainage capabilities and minimize image resulting from major storms and would greatly extend the life of the streets in these subdivisions. However, there is greater cost associated with this improve- ment as compared to a repair and maintenance of the existing street surfac- ing. I: 71•. •: • 7/.• M4 i\IM d. :\i• N:N x.171: I will be available to discuss in further detail the condition of the exist- ing sanitary and storm sewers in these Additions at the meeting to be held between staff and Council to discuss this proposed project. The results of the first internal televising report indicate that there are several areas that need reconstruction. This work should be performed prior to any repair work to the surface to minimize the potential of construction patching in the future. An inspection by the Utility Maintenance section indicates that the great majority of manhole castings for sanitary and storm sewers within these Addi- tions were placed without adequate grouting and/or support rings. Subsequent- ly, these supports are deteriorated which results in infiltration around these structures which will create the potential of extensive future patching to correct these situations in the future. 171 Iu11Ud Y •i •i 71:d / •1 � : \I . With the congpletion of the Cedar Avenue freeway, Nicols Road (County Road 23) is anticipated to be turned back fran the County to the City. The traffic volumes on this section of road have greatly decreased since the opening of the Cedar Avenue freeway. Subsequently, where it was once considered a major arterial, it will be reclassified to a City collector status. Subsequently, there is a question as to whether the frontage roads along Nicols Road will be necessary in the future. If not, should extensive reconstruction be per foamed to these severely deteriorated frontage mads or should they be e]iminI ted and the dollars spent in providing direct driveway connections to existinc* Nicols Road and returning this frontage area to open space front yard for the adjacent structures? Presently, there are several louses located north of Cedar Elementary School which take direct access onto Nicols Road and several which take direct access by way of a severely deteriorated frontage road. The staff would recommend that these services drives be eliminated and reconverted to front yard space with direct driveway connections being made to Nicols Road. Should assessments be spread on a per lot basis equitably throughout the Addi- tion or should assessments be based on the front food method with corner lots receiving a greater assessment due to their increased frontage? In addition, should corner lots that have frontage on streets not to be repaired be assess- ed for the improvement of the streets adjacent to their side yard areas? Project 342 June 18, 1982 Page four WOW •Db N N V SM Vol 0 with the recent closure of Cedar Elementary School, students in the 1st and 3rd Additions will be transferred to Rahn Elementary School south of the 4th Addition. Recently, there has been discussion as to whether the students on the north side of County Road 30 will be bused to Rahn Elementary. If so, should an internal "collector" street be designated through the 2nd and 4th Addition for this bus traffic? If so, that designated street should be up- graded to handle the anticipated heavy traffic loads associated with school buses. I£ the busing alternative is not realized, there will be increased pedestrian traffic through the 2nd and 4th Addition to Rahn Elementary School. If this is the case, should tyre be consideration given to again designating a "collector" street in either upgrading this designated street to a wider width to provide on -street designated walking lanes or should a separate de- tached sidewalk/pathway be constructed for this anticipated increased pedes- trian traffic? REVENUES: ASSESSMENTS VS. TRUNK FUND Since these streets were constructed in the late 50's and early 60's, they have been in service for approximately 20+ years. This is the average life expectancy of a bituminous roadway. In addition, the design standards that they were constructed to,provide for approximately 50% less structural strength than present day standards. As such, what consideration should be given towards assessments of benefited properties for not only maintaining these streets but upgrading them to the structural strength necessary to handle the normal traf- fic loads associated with residential streets? Mile a detailed status analy- sis of the City's major street tank fund is not yet complete, pmli=. ary in- dications are that due to recent major street construction projects (Pilot Knob Road, Wescott Road, Galaxie Avenue) and required future collector street construction requirements (Blackhawk Road, County Road 30, etc.), there are limited construction funds available to undertake a project where a major anticipated revenue is anticipated to be provided through this fund. In addi- tiai, consideration should be given to potential precedence relating to this assessment policy and its impact on future needs for other Cedar Grove Addi- tions (3rd and 4th, etc.). ADDITIONAL STORM SEWER There are certain areas in these two Additions that presently either do not have adequate storm sewer facilities or the catch basin structures that are existing are below minimum inlet capacities for the normal 5 -year storm fre- quency designs. In addition, several of the catch basin grates are of the old design that have the inlet slats parallel to the curbing which present a hazard to bicycle traffic. Consideration should be given to potential re- placement of these castings, upgrading of existing storm sewer facilities and/or installation of additional storm sewer systems at critical areas. Project 342 June 18, 1982 Page five As can be seen by several of these areas of concern, the anticipated im provement in the Cedar Grove 1st and 2nd Additions enccnpasses more than just routine maintenance and repair of the existing bituminous surfacing. I don't believe that routine normal maintenance procedures through the years could have eliminated or minimized any of these concerns. The maj- ority of these concerns relate to the problems associated with streets that are reaching the end of their original anticipated life expectancy. Subsequently, staff would appreciate the opportunity to discuss in depth these concerns with the City Council to receive a defined direction as to how these problems should be approached. I will welcome the opportunity to respond to any questions and discuss this project in further detail with the City Council at their convenience. spectfull LL REsuils[uittedi� Thomas A Colbert, P.E. Director of Public Vbrks TAC/jack cc - Bill Branch, Superintendent of Streets and Equipment Joe Connolly, Assistant Superintendent of Utilities EVALUATION OF THE.PAVEMENTS in CEDAR GROVE NO. 1AND 2 for CITY OF PAGAN. July 19,81 MIDWEST PAVEMENT ;MANAGEMENT, INC. PAVEMENTMANAGEMENTCONSULTANTS Swte:6so.:i 5500 Waynta awev'wd vv , a"=.'MmewtaiE6391 (612) 475-9957 Commission 0180014-6 The evaluation of the pavements in Cedar Grove No. 1 and 2 in the City of Eagan (Figure 1) was conducted to determine what pavement work needs to be done and what the estimated costs would be. The evaluation consisted of the following: • Pavement strength determination with the Road Rater • A surface condition survey • Pavement thickness determination • Heavy Commercial traffic volumes • Analysis and cost estimates e Recommendations RECOMMENDATIONS The following recommendations are based on lowest cost per year of serviceable life before structural pavement repairs would be expected. 1. Remove and replace the alligatored and distorted areas. This represents 19,000 square yards of pavement or 20`� of the area. The estimated unit cost of $4.00 per square yard is based on removal by milling at $1.50 per square yard and replacement with 2331 at $2.50 per square yard. It is recommended that the removal and replacement items be bid separately and that Mn/DOT Spec. 2332 be available as an alternate for the replace- ment material which may lower the unit cost for this portion of the work. 2. Apply a 1',' overlay to Garnet Lane and Drive, Zircon Lane and that portion of Jasper Drive west of Sandstone Lane. Again 2332 should be allowed as an alternate material for this portion. 3. Overlay the entire area with 3/4" of 2331 modified or Bloomington 2341 modified. This is expected to give 15 to 20 years of service- able pavement life before structural maintenance would be required, resulting in the lowest overall per year cost. It is also expected that the frequency of seal coating would be much lower for the 2331 modified or the Bloomington 2341 modified. The estimated costs for this work on Cedar Grove No. 1 and 2 would be 5183,000.00 for 86,000 square yards of residential street. -3- FIGURE 1 LOCATION OF CEDAR GROVE NO. 1 AND 2 -4- INTRODUCTION g The City of Egan requested that Midwest Pavement Management, Inc. evaluate the pavements in Cedar Grove No. 1 and 2 and provide the City with maintenance recommendations and corresponding cost estimates. The City does not have information regarding the design and construction of the pavements in Cedar Grove No. 1 and 2. The pavements have provided approx- imately 20 years of service and a general improvement is necessary at the time I to protect the existing investment and to minimize future pavement failures and maintenance costs. Several alternate improvement designs are considered to determine which would be most beneficial in terms of cost and expected life. The alternates considered are as follows: 1. Crack filling with seal coat application (single or double) 1 2. Patch and repair with seal coat application 3. Patch and repair with bituminous overlay (determine minimum thickness) 4. Overlay only with recommended bituminous thickness Also, the economic and practical feasibility of including a filter fabric in specified locations in lieu of patch and repair prior to overlay was considered. I — -5- THICKNESS OF EXISTING PAVEMENT To determine the thickness of the existing pavement, eight locations were sampled by drilling a small (1 inch) hole into the pavement and measuring the thickness. The bituminous thickness (listed in Table 1) average is 2.56 inches with a coefficient of variation of 19 percent. The aggregate base averaged 3 inches at the locations sampled, resulting in an average Granular Equivalent thickness of 8 inches. (/ rAe PYrSr„ / �rs'i �an fia/ Srrrrt Der.9w SfaN acV ciS (a X /` 12..S 116rSMr14r cfv, v,/rnY(G.G for Sf YVcivlc./ Itrrns f/, lit vs 9" 4i.e.. er.sAal _J Se% Jef,c,c.,cr TABLE 1. Measurements of the bituminous layer thickness in Cedar Grove No. 1 and 2 Bituminous Point No. Thickness Street (Addn) 1 3.0" Diamond (1st) 2 2-3/4" Opal (1st) 3 2-1/2" Zircon (1st) 4 3" Diamond (2nd) 5 3" Sandstone (2nd) 6 2-1/2" Amber (2nd) 7 1-3/4" Jasper (2nd) 8 2" Jasper (2nd) Average = 2.56 inches Standard deviation = 0.48 inch -6- f 1 TRAFFIC The streets evaluated are functionally classified as residential. The volume of traffic for residential streets is normally under 400 vehicles per day. Of this traffic, only the Heavy Commercial traffic need be con- sidered for pavement thickness design purposes. The predominant Heavy Commercial vehicles that travel these streets are garbage trucks, school buses (Table 2), and City maintenance vehicles. There are between 5 and 7 garbage trucks in Cedar Grove No. 1 and 2 per week. Other Heavy Com- mercial traffic such as delivery trucks are normally much lighter than the garbage trucks and school buses. There are no MTC buses on these residential streets. The accumulation of truck traffic on these streets results in an approximate Sigma N18 of 30,000 or less over a 20 year period. This is well within the minimum design section of the Bituminous Pavement Design Charts in the Mn/DOT Road Design Manual. TABLE 2. School Bus Routes (All 66-72 passenger) in Cedar Grove No. 1 and 2 AO -E,114 0.rf>r $I$2 we 10 C�COOr L—�F'nr .6- nSrn51 ? IST ADDITION Street Termini Number of Routes Diamond Drive All 1 Garnet Lane Diamond Drive to Topaz Lane 2 Topaz Lane Garnet Lane to Zircon Lane 2 Topaz Lane Co. Rd. 30 to Zircon Lane 1 Zircon Lane All 1 2ND ADDITION Coral Lane All 2 Diamond Drive Co. Rd. 30 to Coral Lane 2 Jasper Drive Rahn Road to Sandstone Drive 2 Marble Lane W. Jct. Diamond Dr. to Nichols 2 Marble Lane Sandstone Dr. to W. Jct. Diamond 2 Dr. Sandstone Drive Coral Lane to Jasper Drive 2 Sandstone Drive Jasper Drive to Marble Lane 1 -7- THICKNESS DESIGN Within the Mn/DOT Bituminous Pavement Design procedure, the pavement design is based on the maximum allowable deflection during the spring thaw period. Table 3 lists the present estimated spring deflection for each of the streets in Cedar Grove No. 1 and 2. These deflections are calculated from the deflec- tions measured with the Road Rater using relationships developed by Mn/DOT. The last column in Table 3 indicates the increase in G.E. recommended to reduce the deflections to the recommended value. Five of the seven streets in the 1st Addition indicate a need for an increase in structure while only three of the nine streets in the 2nd Addition require additional structure. y TABLE 3. Summary of pavement strength analysis 1 1st ADDITION Measured Allowable Additional Deflection* Deflection* G.E. Required (inches) inches (inches) Diamond Drive 0.079 0.070 2.4 Garnet Lane & Drive 0.096 0.080 4_2 Sapphire Lane 0.067 0.070 Emerald Lane 0.072 0.075 --- Opal Drive 0.092 0.080 3.2 Zircon Lane 0.083 0.070 3.4 Topaz Drive 1 0.072 0.070 0.6 2ND ADDITION Marble Lane 0.069 0.070 --- Diamond Drive 1 0.061 0.070 Moonstone Drive 0.071 0.075 Amber Drive 0.085 0.080 1.2 Amber Court 0.092 0.085 1_6 Limestone Drive 0.072 0.075 Sandstone Drive 0.075 0.075 --- Coral Lane 0.075 0.075 --- Jasper Drive 0.085 0.070 3.9 * The values are expressed as an equivalent Benkelman Beam deflection and represent the mean plus two standard deviation values. - -8- ' SURFACE CONDITION A surface condition survey of the pavement was conducted to determine the type and quantity of distress that is present. The type of distress and the area affected that are relevant to the evaluation are as follows: 1 Distress Area of Pavement Affected Alligator Cracking 17,000 sq. yds. Distortion 4,000 sq. yds. { Block Cracking 18,000 sq. yds. r A portion of the alligator cracking and block cracking is formed by very D narrow to hairline cracks. Although these are hard to see, they will become a more dominant in the future and should be considered at this date. Several of the streets evaluated such as Diamond Drive in the 2nd Addition, have extensive alligator cracking and patching while showing that the strength was adequate. This type of condition is common in instances where the truck traffic has provided continued compaction of the aggregate base and upper portion of the subgrade while causing cracking of the asphalt surface. The other streets that have higher deflections with minimal surface distress would show the same response if subjected to increased volume of truck traffic. Removal and replacement of the areas with alligator cracking is normally recommended to avoid maintenance problems in the future caused by the reflec- tion of those cracks if overlayed or to avoid the development of potholes. -9- I EXPECTED PERFORMANCE OF ALTERNATES CONSIDERED The four alternates considered and their expected life are as follows: H I — -10- Expected Time to Structured Alternate Maintenance 1. Crack fill and seal coat 1 year 2. Patch and repair with seal coat 7 - 10 years 3. Patch and repair with overlay 15 - 20 years 4. Overlay 7 - 10 years The years of performance before additional maintenance would be required is described as follows: 1. One year of performance would be expected for crack fill and seal coat. There are a number of areas with substantial alligator cracking. Alli- gator cracks form blocks of bituminous pavement with an average dimension of 6 inches or less. Crack filling these areas would be very difficult and do not effectively seal out moisture in these forms of cracking. The cracks will be present and open the following spring, allowing water 1 to enter the base and subgrade below resulting in further deterioration of the pavement. 2. Seven to ten years of performance would be expected for patch and repair with seal coat. The controlling factors for this alternate are the existing block and longitudinal cracking that will slowly continue to deteriorate and eventually require maintenance. The cold joints surround- ing all the patch and repair areas also will have some localized deterior- ation requiring future maintenance. However, it is expected that the maintenance requirements would not be very extensive. 3. Fifteen to twenty years would be expected from a patch and repair and,-- nd --overlay. overlay.This alternate would provide service equivalent to what would be expected from a new pavement. Weathering and spring will be the dominant factors controlling the length of service expected. 4. Seven to ten years would be expected from an overlay. The predominant factor that would limit the serviceable life of the overlay is the exist- ing alligator cracking. The cracking will reflect through the overlay in five to seven years and will become a maintenance item several years after. H I — -10- In addition to the four alternates, the City requested that the economic and practical feasibility of fabrics be considered in lieu of patch and repair prior to an overlay. Several brands of the fabrics have been in- stalled at various locations in Minnesota on an experimental basis and are being monitored by Mn/DOT. There has been no evidence in Minnesota to date, that the presence of these fabrics improve the performance of the pavement. The reported successes have been further south in milder climates. The installed price of a fabric at this time is equivalent to a 1, inch Mn/DOT Spec. 2331 overlay. Based on present performance of fabrics in Minnesota, we do not recommend they be used. For future reference, a small experimental installation may be justified. If such an installation would be made, inform Mn/DOT, Office of Research and Engi- neering Development, which is presently observing the performance of various fabric applications. I COST OF ALTERNATES The unit costs applicable to the various alternates were obtained from 9 various paving contractors in the area and from recent bids. The costs are listed in Table 4 and the alternate costs in Table 5. TABLE 4. Unit Costs I 1 Seal Coat••• Sq. Yd. 47.90 48.90 51.51 49.7¢ • See enclosed specification or use the Bloomington 2341 modified specification. •• Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. •" Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE 5. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost Annual Cost Quotes from Contractors 1/$43,000 Patch and Repair with Seal Coat Item Unit A B C 0 (Average) Overlay Overlay - lis" 2341 Sq. Yd. $2.00 $2.00 $4.30 51.65 Overlay (includes an additional Overlay - 3/4" 2331 mod.* Remove and Replace" Sq. Yd. Sq. Yd. 51.05 51.25 -- 51.00 and a part of Jasper) $183,000 15/512,200 $2.00(a)-5.00 $4.50 54.00 lay and 100: 3/4" overlay) 5132,000 10/513,200 E F G H I 1 Seal Coat••• Sq. Yd. 47.90 48.90 51.51 49.7¢ • See enclosed specification or use the Bloomington 2341 modified specification. •• Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. •" Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE 5. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost Annual Cost Crack Fill and Seal Coat $ 43,000 1/$43,000 Patch and Repair with Seal Coat $109,000 7/515,570 Patch and Repair with 1-3/4" (Average) Overlay $266,000 20/$13,300. Patch and Repair with 3/4" Overlay (includes an additional I-1/2" overlay on Garnet, Zircon and a part of Jasper) $183,000 15/512,200 Overlay (based on 30; 1-I/2" over- lay and 100: 3/4" overlay) 5132,000 10/513,200 The annual costs are based on the initial cost divided by the expected years of service. Factors such as interest rates, salvage value, etc. were not - considered -12- k SPECIFICATIONS FOR CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT NO. 342 FOR EAG^ MINNESOTA 1982 BonedAm FILE No. 49229 /(ode w,, 1qmda4" 9 lqddocfa�ed, Yme. (?s""d4--vq -0.q� St pa"4 m4mmda& June 7, 1982 Honorable Mayor S Council City of Eagan 3795 Pilot Knob Road Eagan, Mn. 55122 Re: Cedar Grove No. 1 S No. 2 Bituminous Overlay Project 342 Our File No. 49229 Dear Mayor and Council: Transmitted herewith is our report for Cedar Grove No. 1 and No. 2, Bituminous Overlay. This report discusses existing street conditions within Cedar Grove No. 1 and No. 2 and presents cost estimates for street rehabilitation. We will be pleased to meet with the Council, and other interested parties, at a mutually convenient time to discuss this report. Yours very truly, BONESTR00, ROSENE, ANDERLIK 6 ASSOCIATES, INC. Mark A. Hanson MAH:li I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. Mark A. Hanson Date: June 7, 1982 Reg. No. 14260 Approved by: Thomas A. Colbert Director of Public Works Date: 0021b CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY SCOPE: This report evaluate existing streets included within Cedar Grove No. 1 and No. 2 and presents improvement considerations in conjunction with their estimated cost and proposed assessments. Also included for consideration is construction of concrete curb and gut- ter in conjunction with a bituminous overlay. FEASIBILITY AND RECOMMENDATIONS: This project is feasible and is in accor- dance with requirements for street construction for the City of Eagan. The project as outlined herein can be carried out as one contract. Information pertaining to traffic volume, in-place cross section, measured deflections of the existing pavement, and required granular equivalencies are presented in a report prepared by Midwest Pavement Management, Inc. titled "Evaluation of the Pavements in Cedar Grove No. 1 and No. 2." DISCUSSION: Streets included within Cedar Grove No. 1 and No. 2 have provided approximately 20 years of service which for the most part is considered to be the normal life of a bituminous pavement. The existing street condition dic- tates that it is not cost effective from a maintenance standpoint to apply a seal coat application at this time. This report proposes to construct a 1-1/2 inch 2341 bituminous overlay for all streets included within Cedar Grove No. 1 and No. 2. A bituminous overlay must be constructed on stable bituminous surface if the overlay is to provide an estimated 15 year service life. If an on-going seal coat program is maintained, the service life could be extended even fur- ther. Many streets within Cedar Grove No. 1 and No. 2 have deteriorated to a Page 1. 0021b point where extensive patching and other considerations must be given prior to constructing a bituminous overlay. Streets were therefore, classified into three categories for restoration purposes. Each category is summarized herein and also shown on each figure located at the back of this report. Also shown are critical driveways which additional work will be required to privide proper grade and drainage. RANDOM CRACKING: These are areas where the existing pavement has experienced longitudinal and transverse cracking. These cracks are primarily due to the expansion and contraction of the pavement because of temperature change and also the age of the existing pavement. The pavement for the most part is structurally adequate however a bituminous overlay is warranted due to surface wear and the degradation of the initial pavement properties. It is recommended in these areas cracks be blown clean and a crack sealer of emulsified asphalt be applied prior to the bituminous overlay. MAP CRACKING: These are areas where the existing pavement is ,dl Bib experienc- ing transverse and longitudinal crack in w ,t "4 are confined U& smaller areas. The structural strength of the pavement is deteriorating at a quicker rate, however, it is not cost effective at this time to remove the existing pavement and patch. Two alternatives for treatment of this type of cracking are presented herein which from a cost standpoint are equal. One alternative is to apply additional thickness of bituminous mixture during the overlay process. How- ever, due to marginal driveway grades additional work will be required. Z rr,o� }O w.e 1441 OveY10.( The other alternative is to apply a fabric material which isrfairly newlto JQ *te uaavk,et-in the northern states. Communities which have utilized fabric ma- terial on residential streets have been impressed with its performance to Page 2. 0021b date. The Minnesota Department of Transportation has utilized the fabric ma- terial on highways and have not experienced near the success. However, it is felt due to higher traffic volumes and speeds the fabric material does not perform nearly as well as on low volume and low speed streets. It is recom- mended the fabric material be utilized for this project. MULTIPLE AND ERODED CRACKING: These are areas where the existing pavement has }o d af'Yfe wLere it' k4s fest a+, St'r✓c+wrd( litre" -4 %*f 6;Nfy q,., deterioratedAsu* -'9hPnN the only cost-effective approach from a maintenance standpoint is to remove the existing pavement. It is therefore recommended in these areas the remaining pavement be removed and a 2 inch bituminous base course be constructed prior to the bituminous overlay. CONCRETE CURB AND GUTTER Curbing within Cedar Grove No. 1 and No. 2 consists of bituminous curb which is providing its primary function of containing drainage and traffic and providing a separation between street and yard. With the proposed bituminous overlay as outlined herein construction for concrete curb and gutter should be considered. This construction would involve removal of the existing bitumi- nous curb and constructing a B618 concrete curb and gutter. Restoration of boulevard and driveways will be required. AREA TO BE INCLUDED: The area to be included would be platted lots within Cedar Grove No. 1, No. 2, and No. 4 as indicated in the preliminary assessment roll located at the back of this report. COST ESTIMATES: Detailed cost estimate for bituminous overlay and bituminous overlay with concrete curb and gutter are presented in the Appendices located at the back of this report. These costs are summarized as follows: Page 3. 0021b Bituminous Overlay $419,400 Bituminous Overlay with Concrete Curb b Gutter $945,590 The total estimated costs presented above include contingencies and all related overhead. Overhead costs are estimated at 27% and include legal, en- gineering, administration and bond interest. ASSESSMENT: Assessments are proposed to be levied against the benefitted property. A preliminary assessment roll is included at the back of this re- port. Assessment rates are presented at various percentages of the total estimated cost per lot. �2 remaining costs will be financed from Fov- r„p1pase9, the major street fund for the City of Eagan. 4Cost percentages ase.u� 100%, 50%, or 25% of the total estimated cost per lot c rC �rese�4�-d ;or wart w&kk, & assessed`to the benefited property. based on REVENUE SOURCES: Revenue sources to cover the cost of this project "Masi"& each percentage of the assessable rate as presented in the preliminary assess - o -re ment roll da as follows: A. BITUMINOUS OVERLAY 100% Assessable Rate Street Street Assessment Major Street Fund Project Cost $419,400 $419,400 Page 4. 0021b Revenue Balance $419,400 - 0 - $419,400 - 0 - Project Cost Revenue Balance 50% Assessable Rate Street $419,400 Street Assessment Major Street Fund $419,400 25% Assessable Rate Street $419,400 Street Assessment Major Street Fund $419,400 B. BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER 100% Assessable Rate Street Street Assessment Major Street Fund $209,700 209,700 $419,400 $104,850 314,550 $419,400 Project Cost Revenue $945,590 $945,590 50% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment Major Street Fund $945,590 Page 5. 0021b $945,590 - 0 - $945,590 $735,890 209,700 $945,590 CK1r' Balance hdaw� SCHEDULE Present Feasibility Report Public Hearing Approve Plans 6 Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b Project Cost Revenue Balance 25% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment $631,040 Major Street Fund 314,550 $945,590 $945,590 - 0 - The contribution from Major Street Fund are the same for both bituminous overlay and bituminous overlay with concrete curb and gutter at the 50% and 25% of the assessable rate. It is assumed all costs associated with concrete curb and gutter construction will be assessed completely to the benefited property. SCHEDULE Present Feasibility Report Public Hearing Approve Plans 6 Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b S APPENDIX A COST ESTIMATE CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A) BITUMINOUS OVERLAY 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 1,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 60,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 85 Each Driveway restoration @ $200.00/each 17,000 Total Construction $314,500 +5% Contingency 15,730 0021b $330,230 +27% Legal, Engrng., Admin. & Bond Interest 89,170 TOTAL BITUMINOUS OVERLAY ......................... $419,400 Page 7. I B) BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 2,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 92,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 47,200 Lin.ft. Removing existing bituminous curb @ $0.50/lin.ft. 23,600 47,200 Lin.ft. B618 concrete curb b gutter @ $4.50/lin.ft. 212,400 430 Each Driveway restoration @ $200.00/each 86,000 32,000 Sq.yds. Sodding with 3" topsoil @ $1.80/Sq.yd. 57,600 Total Construction $709,100 +5% Contingency _ 35,460 $744,560 +27% Legal, Engrng., Admin. b Bond Interest 201,030 TOTAL BITUMINOUS OVERLAY WITH CONCRETE CURB ...... $945,590 Page 8. 0021b APPENDIX B PRELIMINARY ASSESSMENT ROLL CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A. BITUMINOUS OVERLAY Cedar Grove No. 1 Block 1, Lots 4-11 Block 2, Lots 13-34 Block 3, Lots 1-19 Block 4, Lots 1-9 Block 5, Lots 1-32 Block 6, Lots 1-20 Block 7, Lots 1-18 Block 8, Lots 1-5 Block 9, Lots 7-19 Block 10, Lots 1-24 Block 11, Lots 1-11 Cedar Pond Park; Lot 10, Block 4 Cedar Grove No. 2 Block 1, Lots 7-30 Block 2, Lots 1-27 Block 3, Lots 1-19 Block 4, Lots 14-27 Block 5, Lots 1-36 Block 6, Lots 1-17 Block 7, Lots 1-52 Block 8, Lots 1-18 0021b Total Cost No: of Lots Per Block Cost/Lot 8 $ 7,803 $975 22 21,458 975 19 18,532 975 9 8,778 975 32 31,211 975 20 19,507 975 18 17,556 975 5 4,877 975 13 12,680 975 24 23,408 975 11 10,729 975 8 7,803 975 24 $ 23,408 975 27 26,333 975 19 18,532 975 14 13,655 975 36 35,113 975 17 16,581 975 52 50,718 975 18 17,556 975 Page 9. Cedar Grove No. 4 Block 1, Lots 16-17 Block 3, Lots 7-15 Block 4, Lots 20-39 Block 6, Lots 17, 18, 19 TOTAL ...................... Total Cost No. of Lots Per Block Cost/Lot 2 $ 1,951 $975 9 8,778 975 20 19,507 975 3 2,926 975 430 $419,400 a3 ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. lyi3f'_y/'T" Cost/Lot 100% Assessable Rate $975.00 50% Assessable Rate 487.50 25% Assessable Rate 243.75 Page 10. 0021b C o s r1L ° r/yER2 st/L ont $1 2 . 1 3.3 �eST�'ar�M°MrN w�. /Syr I ;= 8 or 8„ y vs a3 .223 B. BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER Cedar Grove No. 1 Cedar Grove No. 2 No. of Lots Block 1, Lots 4-11 8 Block 2, Lots 13-34 22 Block 3, Lots 1-19 19 Block 4, Lots 1-9 9 Block 5, Lots 1-32 32 Block 6, Lots 1-20 20 Block 7, Lots 1-18 18 Block 8, Lots 1-5 5 Block 9, Lots 7-19 13 Block 10, Lots 1-24 24 Block 11, Lots 1-11 11 Cedar Pond Park; Lot 10, Block 4 8 Cedar Grove No. 2 Cedar Grove No. 4 Block 1, Lots 16-17 2 Block 3, Lots 7-15 9 Block 4, Lots 20-39 20 Block 6, Lots 17, 18, 19 3 TOTAL ...................... 430 Page 11. 0021b Total Cost Per Block $ 17,592 48,379 41,782 19,791 70,369 43,981 39,583 10,995 28,588 52,777 24,190 17,592 Total Cost Per Block $ 52,777 59,374 41,782 30,787 79,166 37,384 114,350 39,583 $ 4,398 19,791 43,982 6,597 $945,590 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 $2,199 2,199 2,199 2,199 No. of Lots Block 1, Lots 7-30 24 Block 2, Lots 1-27 27 Block 3, Lots 1-19 19 Block 4, Lots 14-27 14 Block 5, Lots 1-36 36 Block 6, Lots 1-17 17 Block 7, Lots 1-52 52 Block 8, Lots 1-18 18 Cedar Grove No. 4 Block 1, Lots 16-17 2 Block 3, Lots 7-15 9 Block 4, Lots 20-39 20 Block 6, Lots 17, 18, 19 3 TOTAL ...................... 430 Page 11. 0021b Total Cost Per Block $ 17,592 48,379 41,782 19,791 70,369 43,981 39,583 10,995 28,588 52,777 24,190 17,592 Total Cost Per Block $ 52,777 59,374 41,782 30,787 79,166 37,384 114,350 39,583 $ 4,398 19,791 43,982 6,597 $945,590 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 Cost/Lot $2,199 2,199 2,199 2,199 2,199 2,199 2,199 2,199 $2,199 2,199 2,199 2,199 .( I ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. The cost/lot for 50% and 25% of the assessable rate assume all costs associated with concrete curb and gutter con- struction will be assessed entirely to the benefited property. 100% Assessable Rate 50% Assessable Rate 25% Assessable Rate 0021b FYf YY,W4 Cost/Lot $2,199 1,711 1,467 Page 12. �r yr Y39 3 V,?'o /88 ar a93W li�/a7 Cost/Lot /Month X9.8 2 0 .8 l OS71OT /INOIV .d Ii / 73GS/- 36 ;toia 2853 /S ay vs /3 vs I 1 10 LA V;2: 2 P 0! 1 0 ES 34 9 2 le 33 D: :v:..;: 32 12 3 1 13 32 Z 4 31 14 m I I : ; 4 15 16 3111 tu 3 20 3 Is 30 4 x17 29 7 TO 28 a 12 279 10 lz 24 23 22 zl zo 11 14 to 2 CEDAR GROVE No. 1"'` ';:'` i5y 8 LOT ! EOUrVALENT RANDOM CRACKING 4 --j 17 F MAP CRACKING 5 16 or>gA CEDAR POND 0 MULTIPLE AND 6 PARK . . ERODED CRACKING 15 7 . . . . . . . . . 17 A CRITICAL DRIVEWAY 14 IB Rl? FILE No. 49229 EAGAN, MINNESOTA 13 9 16 NNESTROO, ROSENE, AKDERILIK & ASSOC, INC. C. S A. H. Ab. 30 CONSM" arimns -T--) r 1wrm ALE: I"= 20t 19 or>gA 0 23 12 . . 5 . . . . . . . . . 17 IB Rl? 9• 16 10 9 lo. 7 Z CO w A 3 1 B . 10 I 1wrm ALE: I"= 20t 1 `[ �:' is i' [i' '!. _ k ,' J �� .... _ t( ...„ It 1 1 MIMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 4, 1982 SUBJECT: INFORMATIONAL MTC Letters Enclosed are copies of two letters which were sent to the MTC, one pertaining to the Cedarvale Shopping Center park & ride site, and the second letter requesting information as to why an MTC express route was not designated from St. Paul to the Zoological Gardens. I.R. Bond Letter Also enclosed is a copy of a letter that was prepared for Repre- sentative Frenzel in response to his request for a position from the City Council on (1) proposing a minimum tax on municipal bonds, and (2) restrictive guidelines on industrial revenue bonds. Journalism Intern Lisa Flemming, who resides on Diffley Road and has resided in the City of Eagan all of her life, was selected by the History Committee to fulfill the internship created by the City Council during the summer months. The purpose of the internship is to complete the history document for the City of Eagan as well as prepare that document. for publication and distribution as a part of the library dedication late this fall. Lisa has written articles for the Eagan Chronicle, has just completed her degree from the College of St. Thomas in journalism, and was agreeable to commit her time through early fall to the Eagan history project. She will be compensated at $4.25 an hour which is the bottom of the range for interns, the internship range is $4.25 - $5.00 per hour depending upon their experience and level of education completed. Household and Population Projection Update for the City of Eagan Enclosed is a copy of a Household and Population Projection Update for the City of Eagan that was prepared by the Planning Department. It was startling to me to see the present population projection of 25,107 as of May 14, 1982. I believe the City Council will find this report extremely interesting. The report is to be used as a part of Jack Boarman's work, Tim Erkilla's work and other projects that are ongoing with the City of Eagan. June 15, 1982 City Council Tentative Agenda Enclosed for your information is a rough draft copy of the June 15, 1982 City Council agenda. _ ityACmInistrator SEA SLOMOUIST MAYOR THOMAS ELAN CITY. OF EAGAN JAMES A. SMITH JERRY THOMAS THEODORE WACHTER L%_1P39S PILOT RNOS ROAD -' COUNCIL MEMBERS V.("P.01 80X.]1199 !,� 'EAGAN, MINNESOTA' June 3, 1982 — PHONE 454-8100 LAWRENCE R SCHUMI CIVIL ENGINEER• METROPOLITAN TRANSIT COMMISSION 801 AMERICAN CENTER BLDG 150 E KELLOGG BLVD ST PAUL MN 55101 Re: MTC Park & Ride Site/Bus Shelter Propc Dear Mr. Schumi: THOMAS HEDGES CITY ADMINISTRATOR EUGENE VAN OVERSEKE CITY CLERK acent to Cedarvale In official action that was taken by the Eagan City Council at a regular meeting held on Tuesday, June 1, 1982, the recommendation of a special task force, the Cedarvale Transportation Advisory Committee, to request a park and ride site/bus shelter to be located adjacent to the Cedarvale Shopping Center in the City of Eagan was approved. This task force, appointed by our Mayor, Bea Blomquist, was formed late last summer to investigate the overall transportation needs for the Cedarvale Shopping Center area which includes some 100 businesses. A study was made of trunk highways and local streets as well as MTC bus service. A meeting was held in this office on December 18, 1981 at which time you were present representing the MTC along with representatives of MnDOT to discuss the possibility of park and ride facilities in that general area. It was agreed at that meeting that both representatives of the MTC and MnDOT would study a number of alternatives to enhance traffic flow and bus service for the area. These studies were completed and a presentation was made by Mr. Dick Elasky of MnDOT at the most recent Cedarvale Area Transportation Committee meeting held on May 19, 1982. At that meeting, seven (%) proposals concerning park and ride sites were given consideration. The proposal that was accepted by both the ad hoc committee and City Coun- cil was proposal number seven which provides- a connection from the Cedar - vale Shopping Center parking lot between Robert's Drug and Mid America National Bank to old highway 13 and also a park and ride site immediately west and adjacent to the Cedarvale Shopping Center parking lot and described as south of said connection. It is the understanding of the City of Eagan that the total cost for this park and ride site to the MTC is approximately $22,000 and that it would accommodate seventy plus cars per day. The City of Eagan is responsive to the proposal and therefore is encouraging the MTC to proceed with plans and specifications for the development of a park and ride site at that location as soon as possible. THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. City of Eagan/Park & Ride Site June 3, 1982 Page Two If you want more specific questions regarding the use City of Eagan once the turn contact this office at any time. Sincerely, rwwoo lf. Thomas L. Hedge City Administrator information regarding the site and/or have of public right of way to be owned by the back from MnDOT is completed, feel free to TLH/hnd cc: Mayor Bea Blomquist Cedarvale Area Transportation Committee Dick Elasky, Assistant District 9 Engineer Tom Colbert, Director of Public Works BEA BLOMOUIST MAYOR THOMASEGAN JAMES A. SMITH JERRY THOMAS THEODORE WACHTER COUNCIL MEMBERS June 3, 1982 JOHN FARRELL ASST GENERAL MANAGER TRANSPORTATION METROPOLITAN TRANSIT 3118 NICOLLET MINNEAPOLIS MN 5540E CITY OF EAGAN MS PILOT KNOB ROAD P.O. BOK 41199 EAGAN,MINNESOTA ' SS1:] PHONE 454-8100 COMMISSION THOMASHEDGES CITY AOMINISTRATUR EUGENEVAN OVERBEKE C1 TY CLERK Re: Route #57 Service Between Downtown Minneapolis & Minnesota Zoological Garden Dear Mr. Farrell: The City of Eagan is very pleased with action that was taken by the MTC to establish Route #57 which is an express bus service between downtown Minneapolis and the Minnesota Zoological Gardens. I was a guest last Thursday, May 27, 1982, at a function you sponsored in downtown Minne- apolis announcing the new bus route service. At the City Council meeting which was held on June 1, 1982, a question was raised by a member of our City Council as to why an express bus service does not exist between the City of St. Paul and Minnesota Zoological Gardens similar to that offered to downtown Minneapolis. I would like for you to comment on this question to satisfy our curiosity as to whether such a service is under consideration and, if not, why an express service has not been considered from that city to the zoological gardens. Thank you for your time and we will await a response from your office. Sincerely, Bea Blomquist Mayor THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. BEA BLOMOUIST MAYOR THOMAS ELAN CITY OF EAGAN JAMES A. SMITH on two JERRY THOMAS important issues THEODORE WACHTER 1195 PILOT KNOB ROAD COUNCIL MEMBERS P.O. BOK 91199 issue is a minimum ' EAGAN, MINNESOTA interest and the 5919] . issue PHONE 451-8100 June 3, 1982 place THE HONORABLE BILL FRENZEL' THE UNITED STATES HOUSE OF REPRE`§iTATIVES 1026 LONGWORTH OFFICE BLDG WASHINGTON DC 20515 Re: Proposed Congressional Action THOMASHEDGES CITY ADMINISTRATOR EUGENE VAN OVERBEKE CITY CLERK Bond Interest to be auDlect to a minimum fax & Restrictive Use of Industrial & Commercial Dear Representative Frenzel: Our City Council is grateful for your letter requesting input on two very important issues affecting economic growth in our community. The first issue is a minimum tax on municipal bond interest and the second issue is the apparent movement by the United States Congress to place heavy restrictions on the issuance of industrial and commercial development bonds by municipalities. At our last regular City Council meeting which was held on June 1, 1982, it was the unanimous position of my fellow City Councilmembers and myself that municipal bond interest should not be subject to a minimum tax. It is becoming difficult, in the present economy, to sell municipal bonds at a favorable interest rate due to the other types of tax incentives that are available to sophisticated investors. A minimum tax placed on municipal bond interest could create a problem for our municipality as well as others to attract competitive bidding, thus receiving higher interest rates for future municipal bond sales. The City of Eagan is a growth community and has been extremely active in the municipal bond market. The offerings have ranged from tax exempt mortgage financing to revenue bonds and assessment bonds. The ability to sell these bonds at a favorable rate compared with the current prime rate and other sources of financing is one limited means of continuing growth and prosperity in our community. Therefore, we appre- ciate your support in making efforts to defeat a minimum tax which is under consideration for municipal bond interest. The City of Eagan has maintained a thorough and sophisticated approach to the consideration and issuance of industrial revenue bonds in recent years. During 1979, our City Council deliberated for many meetings on the development of a policy and criteria document for the consideration and issuance of industrial development revenue mortgages and bonds. This policy statement was adopted by the City Council in December of 1979 and has been used as the guideline to applicants since that date. Our City Council has received a number of applications in the past three to four THE LONE OAK TREE ... THE SYMBOL OF STRENGTH AND GROWTH IN OUR COMMUNITY. City of Eagan/Representative Bill Frenzel June 3, 1982 Page Two years, many of which have been processed and approved, helping to stimu- late growth and development within the community. The City Council has also denied industrial development revenue mortgages that were not viewed to be in the best interest of the City, mainly as related to the comprehen- sive guide plan. The City Council is extremely conscientious about the public hearing process, reviewing in considerable detail financial positions of the applicants, how the particular application relates to the comprehen- sive guide plan as well as many other public policy issues that vary on each application. Our City Council is thorough and sensitive to the types of projects that should be approved under this method of financing. The Eagan City Council is supportive that guidelines should be placed on the issuance of industrial and commercial development bonds that curb the worst "abuses", however, not at the expense of discouraging the consideration of viable projects. A city council is best suited to determine whether a specific application for either industrial or commercial financing should be considered for that specific community. An office building, bowling alley or shopping center may be extremely important to one community, and under present economic conditions, the difference as to whether that commercial use is allowed to develop or not may be whether commercial revenue financing is granted. There has been some discussion by repre- sentatives in the United States Congress that commercial revenue financing be terminated and that only a tax exempt status be offered by a munici- pality for industrial uses. This approach is not feasible, realising that many cities do not have the type of industry that is classified as "manu- facturing" and, therefore, both industrial and commercial development revenue mortgages should be considered to allow further expansion and development of worldheadquarters, warehousing, shopping centers, medical buildings and other types of business activities that help to develop our communities. In summary, we are hopeful that legislation will not be adopted that restricts the issuance of industrial or commercial revenue bonds in our community due to a few cities which have "abused" the intent of industrial and commercial revenue bond financing. I would be more than happy to provide additional information regarding either of the above issues if it is helpful for legislation you wish to introduce or support. Please contact our City Administrator, Mr. Tom Hedges, or me at any time. Again, 1 thank you for notifying our City and allowing our City Council to provide input into the decision making process. Sincerely, Bea Blomquist Mayor �Q 13 SPECIAL CITY COUNCIL MEETING JUNE 21, 1982 6:00 P.M.. 1. Firefighers' Pension Plan 2. Project 342 "Cedar Grove 1st & 2nd Addition - Street Reconstruction" 3. Water Treatment Schedule 4. Other Business 5. Adjournment MEMO TO: HONORABLE MAYOR & CITY COUNCILMEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: JUNE 18, 1982 SUBJECT: SPECIAL CITY COUNCIL MEETING A special City Council meeting is scheduled for 6:00 p.m., Monday, June 21, 1982, at the Eagan City Hall. Originally, the special City Council meeting was scheduled for 7:00 p.m.; however, due to a conflict with the Volunteer Firefighters, the meeting was moved up to 6:00 p.m. The Volunteer Firefighters have their regular Monday night training and a general meeting scheduled at 8:00 p.m., and, therefore, it was necessary to move the time schedule for the meeting from 7:00 to 6:00 p.m. Enclosed is a copy of the agenda for the special City Council meeting which has been properly posted. Firefighters' Pension Plan Enclosed is a copy of the memorandum to the Finance Committee that was copied to the City Council approximately two weeks ago that outlines the various alternatives discussed at a special City Coun- cil meeting on June 8, 1982. It was the consensus of the City Council that the IRA, alternative #4, be presented to the Pension Committee of the Relief Association. Enclosed is a copy of an excerpt from the League of Minnesota Cities magazine, October, 1981 issue, that addresses the use of IRA accounts for volunteer ambulance and fire fighers. It is very likely that legislation will be required in order to work out at transition from a defined benefit program to an IRA account if selected by the firefighters and City Council and due to the special intricacies of working out the required legislation, the City Administrator will await a consensus before proceeding with a proposed IRA Retirement plan. There are a number of memorandums and support data regarding pre- vious discussions to change from a defined benefit program to a defined contribution or other type of program. There are also some fact findings from Roger Katzenmaier, Gus Welter and the City Administrator. The City Council has received this information in the past. If any member would desire any or all of this informa- tion copied as resource data, please contact the City Administra- tor's office. Agenda Information Memo June 18, 1982 Page Two The City Administrator suggested at the last City Council meeting that the Director of Public Works and City Administrator have time to address issues that pertain to public works that are under con- sideration by the City Council. Two (2) specific items were placed on the agenda, one of which is Project 342, the Cedar Grove 1st and 2nd Addition Street Construction, and secondly a water treatment schedule to consider a water treatment plant revised study, survey and public hearing. Other items to discuss are seal coating, county road construction and any other items that the City Council may have questions about. Project #342 Enclosed is a memorandum and considerable information as it pertains to a report on the proposed Project #342 Cedar Grove 1st & 2nd Addition street reconstruction. This information has been prepared and/or coordinated by the Director of Public Works. Water Treatment Schedule The Director of Public Works and City Administrator would like to discuss the proposed time schedule for reconsideration of the water treatment plant, the progress of the feasibility report, a proposed survey to be considered as a City wide newsletter and time for a public hearing. There is no support information to send out with this scheduled item. The discussion is basically proposed as strategy planning with the City Council. Informative Mayor Blomquist, City Councilmember Egan and City Administrator Hedges all attended the League of Minnesota Cities meeting held in Rochester this week. Mayor Blomquist and City Administrator Hedges were in attendance on June 16 and 17 and City Councilmember Egan was present on June 17 and 18. The conference was well attended by elected and appointed officials from the State of Minne- sota and both Mayor Blomquist and I were members of the Planning Conference Committee and received positive input about the quality of the conference which I believe benefited persons who were in attendance. The City of Eagan was well represented at the various sessions. The Director of Finance and Building Inspector were also present for one day sessions to hear seminars that affect their respective positions. OZ �-Yl. City Administrator MEMO TO: FINANCE COMMITTEE MEMBERS JIM SMITH & TOM EGAN FROM: CITY ADMINISTRATOR HEDGES DATE: MAY 26, 1982 SUBJECT: VOLUNTEER FIREMEN'S RELIEF ASSOCIATION RETIREMENT PLAN Background The City Council received a memorandum from the City Administrator pro- viding a brief history of discussions that have taken place between the City Council and Volunteer Firemen's Relief Association regarding an increase or change in the association retirement plan. Also submitted for review by the City Council on March 23, 1982 was a memorandum prepared by Roger Katzenmaier addressing an independent study that he performed with Gus Welter that examined the conversion of the association's retirement program from a defined benefit plan to a defined contribution plan. The City Council received the reports and asked the Finance Committee to meet with Mr. Kat- zenmaier to review the lengthy memorandum. The meeting was scheduled and held on Tuesday, April 6, 1982. There was a great deal of discussion by the Finance Committee and Mr. Katzenmaier at that meeting, and as a result, the Finance Committee desired additional time to study the facts and prepare a recommendation for the City Council. A follow-up meeting was held on May 26, 1982 at which time several options were again discussed and a recommendation considered for review by the City Council at a special meeting. Recommendation The Finance Committee, in studying the information prepared by Mr. Katzen- maier, in addition to data supplied during the past several months, feels that there are four (4) options available regarding the Volunteer Firemen's Association Retirement Program. Those options are as follows: 1. Continue with the defined benefit program. 2. Convert to a defined contribution proposal as previously presented - by the City Council. 3. Provide a combination of the above two options by requiring a lump sum benefit only. 4. Convert the existing program to an IRA which allows for cash pay- ment to each volunteer fireman upon completing one year as a volun- teer fire fighter and each year thereafter. The Finance Committee feels a conversion to an IRA plan is a viable and suitable option to be considered by the City Council. Retirement Plan May 26, 1982 Page Two Action The City Council has agreed in recent months that the Finance Committee would be used to provide fact finding; however, the entire City Council would present and discuss a position as it relates to any change or increase in the retirement plan for the Volunteer Firemen's Relief Association. it is therefore the recommendation of the Finance Committee that the City Coun— cil hold a special City Council meeting and discuss their position. Once an option is agreed upon, it will then be presented to the pension committee for further consideration. ity Administrator 961 STANLEY PESKAR EDITOR'S:NOTE: The -questions below are typical of the thousands of Inquiries the League receives each year. For more comprehensive treatment of questions,'thel Information service of the league Is always available to municipal officials. PERSONNEL—RETIREMENT Does the new federal tax law solve the problem of what to do about a retirement program for ambulance and other volunteers? Apparently yes. Though the state legislature has not had an opportuni- ty to conform state tax laws to the federal laws, it is highly probable it will do so in the next session. Whether the state acts or not, "volunteers" and other city employees, regardless of whether or not they have another pension plan, may annually put up to $2,000 into an independent retirement account (IRA), free of federal taxes.' 14 Thus, cities can now determine how much to pay ambulance or firefighter= volunteers, make a direct payment to the volunteer, and let him or her decide whether to take the money as current compensation or put it in an IRA for retirement pur- poses. Money placed in IRAs is not tax- able in the year in which it is receiv- ed. Therefore, the entire amount can be invested and can earn a yield up to the date of retirement. When the volunteer retires, the payments are taxable, but presumably the recipient is in a lower tax bracket at that time because of lower income and in- creased exemptions or deductions or a combination of all three. The IRA has several advantages for the volunteer over participation in a more conventional retirement plan such as a local relief association. Since there is no vesting period, assets are not lost by failure to serve a minimum period. (Ten years is typical in most other plans.) Thus, there is full portability from one com- munity and job to another. Further, since the IRA belongs to the volunteer, it is not subject to manipulation through benefit for- mula changes by a board of trustees or the legislature. Consequently, the volunteer need not commit valuable time out of a busy schedule to par- ticipation in governance of a relief association. He or she need only select an IRA plan and determine THEIN WELL CO., Inc. Complete Well & Pump Service Since 1893 24 Hr. a Well Drilling a T.V. Well Inspection Well &Pump . Well Repair s Electric Logging Service e Pump Repair a Pump Sales Clara City, MN .................... 612-847-3207 Spicer, MN.......................612-796-2111 Rochester, MN...................507-288.5554 each year the level of participation which is appropriate. The IRA assets are a reserve of cash available to the volunteer in certain emergencies before retirement. The IRA thus provides a ready-made sur- vivor, disability, and burial benefit to the extent of funds in the account. Should volunteers need additional disability or survivor benefits, these can be purchased individually or by the city as part of the compensation package from an insurance com- pany. The IRA also permits selection of a money manager with an investment strategy or policy which suits the in- dividual economic or social goals of the volunteer rather than the objec- tives of the relief association trustees or state legislators. Finally, the use of current compensation (with volunteer option to purchase an IRA) to the volunteer ambulance or fire service permits city officials (mayor and clerk) to avoid responsibility for managing a local relief association, for preparing, reviewing, and filing complex financial reports, and for hassling with an organization which can be a major political force in the community. The new federal law offers a less complicated way to attract, retain, and provide security for a citizen resource which cities may increasing- ly need to rely upon to provide ser- vices in these times of contraction of financial resources. Footnotes Those coordinated employees covered by PERA would be subject to Social Security taxes and PERA deductions on their IRA contribu- tion, but it is unlikely that any volunteers would be paid the minimum $325 per month required for participation in the coordinated PERA-Social Security program. Thus, no federal deductions would be made. ' If the city has a local volunteer fire relief association, all of the 2% state fire aid must go to the relief association. If no local relief association exists, the 2% aid may be used for equipment, supplies, and buildings, and the city could put a comparable amount from other sources into current compensation which could then be used by individual firefighters for IRAs. IRAs could also be used to xgtplcnwnt u>isting relief ts.ociation benefits_ MINNESOTA CITIES seeks to implement a substantial governmental interest, directly ad- vances that interest, and reaches no further than necessary to accomplish the given objective. Though it ruled that the ordinance was valid in regard to the regulation of commercial speech, the plurality held that the ordinance was un- constitutional in its treatment of non- commercial speech. Although the or- dinance included a broad exception. for on-site commercial billboards, it permitted no similar exceptions for non-commercial speech. Justice White noted that the Supreme Court's recent free speech cases have consistently accorded non- commercial speech a greater degree of protection than commercial speech. The city's ordinance effec- tively inverted this judgment, affor- ding a greater degree of protection to commercial than to non-commercial speech. justice White stated that although a city may distinguish bet- ween the relative value of different categories of commercial speech, it does not have the same range of choice in the area of non- commercial speech to evaluate the strength of, or distinguish between, various communicative interests. The Court held that because some non- commercial messages could have been conveyed on billboards throughout commercial and in- dustrial zones, the city must similarly allow billboards conveying other non-commercial messages in those zones. The plurality specifically stated that it was not deciding whether a total prohibition of out- door advertising would be consistent with the First Amendment. Two justices, concurring in the judgment but not joining the opin- ion, stated their belief that this case in effect presented the total ban question. The effect of the or- dinance, they said, was to ban billboards completely. Their analysis would allow a city to impose such a total ban only if it shows that a suffi- Fast, efficient and repair of ,% Bergerson-Caswell is well equipped, not only for well drilling, but maintenance, too. If you have a reduced flow from an aging pump, or if you are starting to pump sand or other foreign materials, call us for an analysis of repairs. We can put new life into existing wells, quickly and economically. Call (612) 47&3121 Bergerson-Caswell, Inc. 5115 Industrial Street•Maple Plain, MN 55359 ciently substantial governmental in- terest is furthered by the ban, and that a more narrowly drawn restric- tion would not suffice. The three dissenting justices all recognized the probable effects of this holding. The decision arguably leaves a city wishing to respond to the hazards posed by billboards a choice between two equally un- satisfactory alternatives. One alter- native is to ban all signs of any kind. The second is to restrict commercial signs, but to permit all non- commercial signs no matter how numerous, large, damaging to the environment, or dangerous to motorists and pedestrians. Con- fronted with these alternatives, it is likely that most cities will do nothing. Cities contemplating action regard- ing billboards should examine this decision in determining the scope of their authority. Metromedia, Inc. v. City of San Diego (49 L.W. 4925, U.S. Sup. Ct., 1981). October 1981 13 TO: HONORABLE MAYOR AND CITY COUNCIIMEMBERS, C/O THOMAS L. HEDGES, CITY ADMINISTRATOR FRIM: THOMAS A. COLBERT, DIRECTOR OF PUBLIC WORKS DATE: JUNE 18, 1982 • o r• n•F 11111F�u •• • •� a r • In the early fall of 1980, the City Council directed staff to analyze the streets in the Cedar Grove Additions to evaluate their needs and maintenance requirements in order to maintain these streets to try to lengthen their ser- vice life before major reconstruction and replacement became necessary. Sub- sequently, the staff performed an experimental repair on West Marble Lane through the intersections of North and South Diamond Drive. The south half of Marble Lane was reconstructed after removing the deteriorated and fractur- ed existing bituminous surfacing. A 2" overlay was then placed over this section of Marine Lane to analyze the difference between removal and replace- ment prior to an overlay and the effects of just overlaying the existing bit- uminous. This "test" section has now gone through two winter/spring cycles. The results indicate that the south half of Marble Lane that was reconstruct- ed has experienced appmxi+mtely 80% less of reflective cracking through the 2" bituminous overlay. On the north half of Marble Lane, random cracking has ,eared which is a direct reflection of the random cracking that existed prior to the bituminous overlay. Subsequently, this random cracking will di- minish the expected additional life that could be provided by this corrective overlay. In the summer of 1981, the staff contracted with Midwest Pavement Management Inc. to perform a detailed analysis of the streets in the Cedar Grove lst and 2nd Addition. Their analysis consisted of traffic counts, traffic distribu- tion analysis, test core samples, and computerized pavement deflection eval- uation to determine the existing pavement stability. A copy of that report is attached for the Council's information. They were asked to evaluate 5 different possible alternatives as recommended by City staff. Their analysis was then computed and converted to an "expected life/annual cost" relation- ship as indicated on Page 12 of that report. During 1981, the City had Professional Services Group Inc. televise the san- itary sewer lines in the Cedar Grove 1st Addition to try to determine any potential corrective work that may be required. This closed circuit tele- vision investigation of the sanitary sewer indicated several areas that need corrective work due to settlement of pipes, misalignment of pipes, fractured pipes, protruding services, and extensive root infiltration which will great- ly increase the potential of sanitary sewer back ups. In addition, during the spring of 1982, the Public Works Utility Maintenance section performed an analysis of all sanitary sewer and storm sewer manhole castings and found that approximately 60% of these are in immediate need of reconstruction and repair due to deterioration. Based on the results of the televising of the 1st Addition, the staff then contracted during the spring of 1982 with Mid- west TV Inc. to televise the sewer lines in the 2nd Addition to try and de- termine if similar corrective work was necessary. The results of this work Project 342 June 18, 1982 Page two are not yet immediately available but are anticipated within the next three weeks. Subsequent to this pre -investigation work performed by staff, the results of this information were forwarded to the City's Consulting Engineering film of Honestroo, Rosene, Anderlik and Associates, Inc. for the preparation of a feasibility report to estimate the costs of repair and the resulting potential assessments associated with this work in the let and 2nd Additions. Copies of this feasibility report are also being forwarded to the Council for their re- view. Please keep in mind that this feasibility report is in a preliminary draft stage and is subject to revision after discussion between staff and Coun- cil. There are several concerns that have not been specifically addressed in the feasibility report that staff would like to bring to the Council's attention to receive further direction on before additional work is performed. These are summarized as follows: 1. Possible replacement of deteriorated blacktop curbing with concrete curb and gutter. 2. Required corrective construction to existing sanitary sewer and stone sewers. 3. Reconstruction of deteriorated manhole casting supports and catch basin structures.' . 4. Elimination vs. restoration of service drives (Nicols Road and County Road 30) . 5. Assessments against corner lots where only side streets are reconstructed/ upgraded. 6. Potential need of increasing the structural strength of minor "collector" streets with potential sidewalks/pathways/striped walking lanes due to the closure of Cedar Elementary School and the potential of increased busing and/or increased pedestrian traffic through the 2nd Addition to Rahn Elementary School. 7. Revenue sources: assessments vs. major street trunk fund 8. Consideration of additional stone sewer facilities in certain areas to increase drainage capabilities. M. . «y is k, 0 %Ko) The existing bituminous curbing has been in place for 20+ years and is show- ing signs of deterioration resulting from extensive weathering, snowplow main- tenance, etc. With the placement of a proposed 2" bituminous overlay of the existing surface, these subdivisions will experience decreased curb heights Project 342 June 18, 1982 Page three which will decrease the capabilities of confining drainage from major storms within the street area and will require extensive driveway approach recon- struction. If the streets were reconstructed with concrete curb and gutter, it would increase the drainage capabilities and minimize damage resulting from major storms and would greatly extend the life of the streets in these subdivisions. However, there is greater cost associated with this improve- ment as compared to.a repair and maintenance of the existing street surfac- ing. REPAIR OF EXISTING SANITARY AND STORM SEWERS I will be available to discuss in further detail the condition of the exist- ing sanitary and storm sewers in these Additions at the meeting to be held between staff and Council to discuss this proposed project. The results of the first internal televising report indicate that there are several areas that need reconstruction. This work should be performed prior to any repair work to the surface to minimize the potential of construction patching in the future. An inspection by the Utility Maintenance section indicates that the great majority of manhole castings for sanitary and storm sewers within these Addi- tions were placed without adequate grouting and/or support rings. subsequent- ly, these supports are deteriorated which results in infiltration around these structures which will create the potential of extensive future patching to correct these situations in the future. �iuuuU�Ci'��la��:�i � •: •� . With the completion of the Cedar Avenue freeway, Nicols Road (County Road 23) is anticipated to be turned back from the County to the City. The traffic volumes on this section of road have greatly decreased since the opening of the Cedar Avenue freeway. Subsequently, where it was once considered a major arterial, it will be reclassified to a City collector status. Subsequently, there is a question as to whether the frontage roads along Nicols Road will be necessary in the future. If not, should extensive reconstruction be per- formed to these severely deteriorated frontage roads or should they be elimina- ted and the dollars spent in providing direct driveway connections to existin(* Nicols Road and returning this frontage area to open space front yard for the adjacent structures? Presently, there are several houses located north of Cedar Elementary School which take direct access onto Nicols Road and several which take direct access by way of a severely deteriorated frontage road. The staff would recommend that these services drives be eliminated and reconverted to front yard space with direct driveway connections being made to Nicols Road. [w•7:4�i. MGM :r.Y.7�-�7uia •ry Should assessments be spread on a per lot basis equitably throughout the Addi- tion or should assessments be based on the front food method with corner lots receiving a greater assessment due to their increased frontage? In addition, should corner lots that have frontage on streets not to be repaired be assess- ed for the improvement of the streets adjacent to their side yard areas? Project 342 June 18, 1982 Page four With the recent closure of Cedar Elementary School, students in the 1st and 3rd Additions will be transferred to Rahn Elementary School south of the 4th Addition. Recently, there has been discussion as to whether the students on the north side of County Road 30 will be bused to Rahn Elementary. If so, should an internal "collector" street be designated through the 2nd and 4th Addition for this bus traffic? If so, that designated street should be up- graded to handle the anticipated heavy traffic loads associated with school buses. If the busing alternative is not realized, there will be increased pedestrian traffic through the 2nd and 4th Addition to Rahn Elementary School. If this is the case, should tyre be consideration given to again designating a "collector" street in either upgrading this designated street to a wider width to provide on -street designated walking lanes or should a separate de- tached sidewalk/pathway be constructed for this anticipated increased pedes- trian traffic? Since these streets were constructed in the late 50's and early 60's, they have been in service for approximately 20+ years. This is the average life expectancy of a bituminous roadway. In addition, the design standards that they were constructed to,provide for apprcximately 50% less structural strength than present day standards. As such, what consideration should be given towards assessments of benefited properties for not only maintaining these streets but upgrading then to the structural strength necessary to handle the normal traf- fic loads associated with residential streets? While a detailed status analy- sis of the City's major street trunk fund is not yet conplete, preliminary in- dications are that due to recent major street construction projects (Pilot Knob Road, Wescott Read, Galaxie Avenue) and required future collector street construction requirements (Blackhawk Road, County Road 30, etc.), there are limited construction funds available to undertake a project where a major anticipated revenue is anticipated to be provided through this fund. In addi- tion, consideration should be given to potential precedence relating to this assessment policy and its impact on future needs for other Cedar Grove Addi- tions (3rd and 4th, etc.) . ADDITIONAL STORM SEWER CONSTRUCTIM There are certain area in these two Additions that presently either do not have adequate storm sewer facilities or the catch basin structures that are existing are below minimum inlet capacities for the normal 5 -year storm fre- quency designs. In addition, several of the catch basin grates are of the old design that have the inlet slats parallel to the curbing which present a hazard to bicycle traffic. Consideration should be given to potential re- placement of these castings, upgrading of existing storm sewer facilities and/or installation of additional storm sewer systems at critical areas. Project 342 Jame 18, 1982 Page five As can be seen by several of these areas of concern, the anticipated im- provement in the Cedar Grove 1st and 2nd Additions enccnipasses more than just routine maintenance and repair of the existing bituminous surfacing. I don't believe that routine normal maintenance procedures through the years could have eliminated or minimized any of these concerns. nue maj- ority of these concerns relate to the problems associated with streets that are reaching the end of their original anticipated life expectancy. Subsequently, staff would appreciate the opportunity to discuss in depth these concerns with the City Council to receive a defined direction as to has these problems should be approached. I will welcane the opportunity to respond to any questions and discuss this project in further detail with the City Council at their convenience. spectfull Resutani.ti�, Thamas A. Colbert, P.E. Director of Public Works TAC/jach cc - Bill Branch, Superintendent of Streets and Equipment Joe Connolly, Assistant Superintendent of Utilities -i EVALUATION-OFTHE PAVEMENTS in CEDAR GROVE NIO. I AND'2, 'for CITY OF EAGAN July 1981 QPM in;,. MIDWEST PAVEMENT MANAGEMENT, IANC. PAVEMENT MANAGEMENT'CONSULTANTS Sude 636.155-00 Wayzata Boulevard, Wayzata. Mmta, 1 55 1 3 - 9V .16121.475-9957 Commission Nc-. 0180014-6 SUMMARY The evaluation of the pavements in Cedar Grove No. 1 and 2 in the City of Eagan (Figure 1) was conducted to determine what pavement work needs to be done and what the estimated costs would be. The evaluation consisted of the following: • Pavement strength determination with the Road Rater • A surface condition survey • Pavement thickness determination • Heavy Commercial traffic volumes • Analysis and cost estimates • Recommendations RECOMMENDATIONS The following recommendations are based on lowest cost per year of serviceable life before structural pavement repairs would be expected. 1. Remove and replace the alligatored and distorted areas. This represents 19,000 square yards of pavement or 20" of the area. The estimated unit cost of $4.00 per square yard is based on removal by milling at $1.50 per square yard and replacement with 2331 at $2.50 per square yard. It is recommended that the removal and replacement items be bid separately and that Mn/DOT Spec. 2332 be available as an alternate for the replace- ment material which may lower the unit cost for this portion of the work. 2. Apply a 1z" overlay to Garnet Lane and Drive, Zircon Lane and that portion of Jasper Drive west of Sandstone Lane. Again 2332 should be allowed as an alternate material for this portion. 3. Overlay the entire area with 3/4" of 2331 modified or Bloomington 2341 modified. This is expected to give 15 to 20 years of service- able pavement life before structural maintenance would be required, resulting in the lowest overall per year cost. It is also expected that the frequency of seal coating would be much lower for the 2331 modified or the Bloomington 2341 modified. The estimated costs for this work on Cedar Grove No. 1 and 2 would be 5183,000.00 for 86,000 square yards of residential street. -3- FIGURE 1 LOCATION OF CEDAR GROVE NO. 1 AND 2 -4- INTRODUCTION The City of Egan requested that Midwest Pavement Management, Inc. evaluate the pavements in Cedar Grove No. 1 and 2 and provide the City with maintenance recommendations and corresponding cost estimates. The City does not have information regarding the design and construction of the pavements in Cedar Grove No. 1 and 2. The pavements have provided approx- imately 20 years of service and a general improvement is necessary at the time 7 to protect the existing investment and to minimize future pavement failures and maintenance costs. Several alternate improvement designs are considered to determine which would be most beneficial in terms of cost and expected life. The alternates considered are as follows: 1. Crack filling with seal coat application (single or double) g2. Patch and repair with seal coat application 3. Patch and repair with bituminous overlay (determine minimum thickness) 4. Overlay only with recommended bituminous thickness Also, the economic and practical feasibility of including a filter fabric in specified locations in lieu of patch and repair prior to overlay was considered. -5- THICKNESS OF EXISTING PAVEMENT To determine the thickness of the existing pavement, eight locations were sampled by drilling a small (1 inch) hole into the pavement and measuring the thickness. The bituminous thickness (listed in Table 1) average is 2.56 inches with a coefficient of variation of 19 percent. The aggregate base averaged 3 inches at the locations sampled, resulting in an average Granular Equivalent thickness of 8 inches. (, rsv ) Presr„t �es, fo, f,./ Slrret Ovsp.. stn„�1era� �N4.9 dare 8 Xu.'ACe 12, �6rdx✓/aeEfV'V:/rntae-- f'.- ff-ru vr< i Itr—y +X f21 - vs 8C�.E e-As6ny =7 sa% Aei,c,eaej TABLE 1. Measurements of the bituminous layer thickness in Cedar Grove ,, o; ,F,.rs/.leky,, No. 1 and 2 Bituminous Point No. Thickness Street (Addn) 1 3.0” Diamond (1st) 2 2-3/4" Opal (1st) 3 2-1/2" Zircon (1st) 4 3" Diamond (2nd) 5 311 Sandstone (2nd) 6 2-1/2" Amber (2nd) 7 1-3/4" Jasper (2nd) 8 2" Jasper (2nd) Average = 2.56 inches Standard deviation = 0.48 inch -6- l I I TRAFFIC The streets evaluated are functionally classified as residential. The volume of traffic for residential streets is normally under 400 vehicles per day. Of this traffic, only the Heavy Commercial traffic need be con- sidered for pavement thickness design purposes. The predominant Heavy Commercial vehicles that travel these streets are garbage trucks, school buses (Table 2), and City maintenance vehicles. There are between 5 and 7 garbage trucks in Cedar Grove No. 1 and 2 per week. Other Heavy Com- mercial traffic such as delivery trucks are normally much lighter than the garbage trucks and school buses. There are no MTC buses on these residential streets. The accumulation of truck traffic on these streets results in an approximate Sigma N18 of 30,000 or less over a 20 year period. This is well within the minimum design section of the Bituminous Pavement Design Charts in the Mn/DOT Road Design Manual. TABLE 2. School Bus Routes (All 66-72 passenger) in Cedar Grove No. 1 and 2 ��^SSiJ�r .rl [(^n_r 4TfPr `d'�P.� �vf Lu �rC/•.r L�r.i, .0/n: .n'7 1ST ADDITION Street Termini Number of Routes Diamond Drive All 1 Garnet Lane Diamond Drive to Topaz Lane 2 Topaz Lane Garnet Lane to Zircon Lane 2 Topaz Lane Co. Rd. 30 to Zircon Lane 1 Zircon Lane All I 2ND ADDITION Coral Lane All 2 Diamond Drive Co. Rd. 30 to Coral Lane 2 Jasper Drive Rahn Road to Sandstone Drive 2 Marble Lane W. Jct. Diamond Dr. to Nichols 2 Marble Lane Sandstone Dr. to W. Jct. Diamond 2 Dr. Sandstone Drive Coral Lane to Jasper Drive 2 Sandstone Drive Jasper Drive to Marble Lane 1 _-7- THICKNESS DESIGN IWithin the Mn/DOT Bituminous Pavement Design procedure, the pavement design is based on the maximum allowable deflection during the spring thaw period. Table 3 lists the present estimated spring deflection for each of the streets in Cedar Grove No. 1 and 2. These deflections are calculated from the deflec- tions measured with the Road Rater using relationships developed by Mn/DOT. The last column in Table 3 indicates the increase in G.E. recommended to reduce the deflections to the recommended value. Five of the seven streets in the 1st Addition indicate a need for an increase in structure while only three of the nine streets in the 2nd Addition require additional structure. l 1 TABLE 3. Summary of pavement strength analysis 1 1st ADDITION 0.069 0.070 Diamond Drive 0.061 Measured Allowable Additional 0.075 Deflection* Deflection* G.E. Required 1 (inches) (inches) inches Diamond Drive 0.079 0.070 2.4 Garnet Lane & Drive 0.096 0.080 4_2 Sapphire Lane 0.067 0.070 Emerald Lane 0.072 0.075 --- Opal Drive 0.092 0.080 3.2 Zircon Lane 0.083 0.070 3.4 Topaz Drive 0.072 0.070 0.6 2ND ADDITION Marble Lane 0.069 0.070 Diamond Drive 0.061 =__ 0.070 Moonstone Drive 0.071 0.075 Amber Drive 0.085 0.080 1.2 Amber Court 0.092 0.085 1_6 Limestone Drive 0.072 0.075 Sandstone Drive 0.075 0.075 --- Coral Lane 0.075 0.075 --- Jasper Drive 0.085 0.070 3.9 j The values are expressed as an equivalent Benkelman Beam deflection and represent the mean plus two standard deviation values. 1 - -8- SURFACE CONDITION A surface condition survey of the pavement was conducted to determine the type and quantity of distress that is present. The type of distress and the area affected that are relevant to the evaluation are as follows: Distress Area of Pavement Affected Alligator Cracking 17,000 sq. yds. Distortion 4,000 sq. yds. 1 Block Cracking 18,000 sq. yds. A portion of the alligator cracking and block cracking is formed by very narrow to hairline cracks. Although these are hard to see, they will become more dominant in the future and should be considered at this date. / Several of the streets evaluated such as Diamond Drive in the 2nd Addition, have extensive alligator cracking and patching while showing that the strength was adequate. This type of condition is common in instances where the truck traffic has provided continued compaction of the aggregate base and upper portion of the subgrade while causing cracking of the asphalt surface. The other streets that have higher deflections with minimal surface distress would show the same response if subjected to increased volume of truck traffic. 1 Removal and replacement of the areas with alligator cracking is normally recommended to avoid maintenance problems in the future caused by the reflec- tion of those cracks if overlayed or to avoid the development of potholes. -9- EXPECTED PERFORMANCE OF ALTERNATES CONSIDERED The four alternates considered and their expected life are as follows: I D — _10- Expected Time to Structured Alternate Maintenance 1. Crack fill and seal coat 1 year 2. Patch and repair with seal coat 7 - 10 years 3. Patch and repair with overlay 15 - 20 years 4. Overlay 7 - 10 years The years of performance before additional maintenance would be required is described as follows: 1. One year of performance would be expected for crack fill and seal coat. There are a number of areas with substantial alligator cracking. Alli- gator cracks form blocks of bituminous pavement with an average dimension of 6 inches or less. Crack filling these areas would be very difficult and do not effectively seal out moisture in these forms of cracking. The cracks will be present and open the following spring, allowing water to enter the base and subgrade below resulting in further deterioration of the pavement. 2. Seven to ten years of performance would be expected for patch and repair with seal coat. The controlling factors for this alternate are the existing block and longitudinal cracking that will slowly continue to deteriorate and eventually require maintenance. The cold joints surround- ing all the patch and repair areas also will have some localized deterior- ation requiring future maintenance. However, it is expected that the maintenance requirements would not be very extensive. 3. Fifteen to twenty years would be expected from a patch and repair and .•- overlay. This alternate would provide service equivalent to what would be expected from a new pavement. Weathering and spring will be the dominant factors controlling the length of service expected. 4. Seven to ten years would be expected from an overlay. The predominant a factor that would limit the serviceable life of the overlay is the exist- ing alligator cracking. The cracking will reflect through the overlay in five to seven years and will become a maintenance item several years after. I D — _10- In addition to the four alternates, the City requested that the economic and practical feasibility of fabrics be considered in lieu of patch and repair prior to an overlay. Several brands of the fabrics have been in- stalled at various locations in Minnesota on an experimental basis and are being monitored by Mn/DOT. There has been no evidence in Minnesota to date, that the presence of these fabrics improve the performance of the pavement. The reported successes have been further south in milder climates. The installed price of a fabric at this time is equivalent to a 1i inch Mn/DOT Spec. 2331 overlay. Based on present performance of fabrics in Minnesota, we do not recommend they be used. For future reference, a small experimental installation may be justified. If such an installation would be made, inform Mn/DOT, Office of Research and Engi- neering Development, which is presently observing the performance of various fabric applications. I 1 — -11- I COST OF ALTERNATES The unit costs applicable to the various alternates were obtained from various paving contractors in the area and from recent bids. The costs 9s are listed in Table 4 and the alternate costs in Table 5. 8 TABLE 4. Unit Costs E E F G H Seal Coat"- Sq. Yd. 47.94 48.92 51.5f 49.71 ' See enclosed specification or use the Bloomington 2341 modified specification. " Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. ••• Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE S. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost - Annual Cost Quotes from Contractors 1/$43,000 Item Unit A B C D Overlay - 14" 2341 Sq. Yd. 52.00 $2.00 $4.30 51.65 Patch and Repair with 3/4" Overlay - 3/4" 2331 mod.* Sq. Yd. 51.05 51.25 -- 51.00 Remove and Replace" Sq. Yd. 52.00(a)-5.00 54.50 54.00 E E F G H Seal Coat"- Sq. Yd. 47.94 48.92 51.5f 49.71 ' See enclosed specification or use the Bloomington 2341 modified specification. " Based on milling 2.6" and replacing with 2331. Use of separate bid items for removal and replacement is suggested. ••• Costs based on the sweeping to be provided by the City. Sweeping will add 7 to 8 cents per square yard to the cost. (a) The lower price may be possible by ripping and loading with a 2332 replacement. TABLE S. Estimate of Costs by Alternate Expected Life/ Alternate Initial Cost - Annual Cost Crack Fill and Seal Coat $ 43,000 1/$43,000 Patch and Repair with Seal Coat $109,000 7/$15,570 Patch and Repair with 1-3/4" (Average) Overlay $266,000 20/$13,300 Patch and Repair with 3/4" Overlay (includes an additional 1-1/2" overlay on Garnet, Zircon and a part of Jasper) $183,000 15/512,200 Overlay (based on 30', 1-I/2" over- lay and 100'; 3/4" overlay) $132,000 10/513,200 The annual costs are based on the initial cost divided by the expected years of service. Factors such as interest rates, salvage value, etc. were not considered -12- k SPECIFICATIONS (to" CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT NO. 342 FOR EAG^ MINNESOTA 1982 Sul FILE No. 49229 /90"OAAWI l?"e-mef lq"44" a Yquocl&�f Ync. cw""&44q 'Cag4w," St PaW4 m4m""& !I June 7, 1982 Honorable Mayor b Council City of Eagan 3795 Pilot Knob Road Eagan, Mo. 55122 Re: Cedar Grove No. 1 5 No. 2 Bituminous Overlay Project 342 Our File No. 49229 Dear Mayor and Council: Transmitted herewith is our report for Cedar Grove No. 1 and No. 2, Bituminous Overlay. This report discusses existing street conditions within Cedar Grove No. 1 and No. 2 and presents cost estimates for street rehabilitation. We will be pleased to meet with the Council, and other interested parties, at a mutually convenient time to discuss this report. Yours very truly, BONESTR00, ROSENE, ANDERLIK b ASSOCIATES, INC. Mark A. Hanson MAH:li Approved by: 0021b I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. A. Hanson Date: June 7, 1982 Reg. No. 14260 Thomas A. Colbert Director of Public Works Date: CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY SCOPE: This report evaluate existing streets included within Cedar Grove No. 1 and No. 2 and presents improvement considerations in conjunction with their estimated cost and proposed assessments. Also included for consideration is construction of concrete curb and gut- ter in conjunction with a bituminous overlay. FEASIBILITY AND RECOMMENDATIONS: This project is feasible and is in accor- dance with requirements for street construction for the City of Eagan. The project as outlined herein can be carried out as one contract. Information pertaining to traffic volume, in-place cross section, measured deflections of the existing pavement, and required granular equivalencies are presented in a report prepared by Midwest Pavement Management, Inc. titled "Evaluation of the Pavements in Cedar Grove No. 1 and No. 2." DISCUSSION: Streets included within Cedar Grove No. 1 and No. 2 have provided approximately 20 years of service which for the most part is considered to be the normal life of a bituminous pavement. The existing street condition dic- tates that it is not cost effective from a maintenance standpoint to apply a seal coat application at this time. This report proposes to construct a 1-1/2 inch 2341 bituminous overlay for all streets included within Cedar Grove No. 1 and No. 2. A bituminous overlay must be constructed on stable bituminous surface if the overlay is to provide an estimated 15 year service life. If an on-going seal coat program is maintained, the service life could be extended even fur- ther. Many streets within Cedar Grove No. 1 and No. 2 have deteriorated to a Page 1. 0021b 0 point where extensive patching and other considerations must be given prior to constructing a bituminous overlay. Streets were therefore, classified into three categories for restoration purposes. Each category is summarized herein and also shown on each figure located at the back of this report. Also shown are critical driveways which additional work will be required to pr:ivide proper grade and drainage. RANDOM CRACKING: These are areas where the existing pavement has experienced longitudinal and transverse cracking. These cracks are primarily due to the expansion and contraction of the pavement because of temperature change and also the age of the existing pavement. The pavement for the most part is structurally adequate however a bituminous overlay is warranted due to surface wear and the degradation of the initial pavement properties. It is recommended in these areas cracks be blown clean and a crack sealer of emulsified asphalt be applied prior to the bituminous overlay. MAP CRACKING: These are areas where the existing pavement is 419b experienc- ing transverse and longitudinal cracking WC'. -L` are confined w smaller areas. The structural strength of the pavement is deteriorating at a quicker rate, however, it is not cost effective at this time to remove the existing pavement and patch. Two alternatives for treatment of this type of cracking are presented herein which from a cost standpoint are equal. One alternative is to apply additional thickness of bituminous mixture during the overlay process. How- ever, due to marginal driveway grades additional work will be required. fr.or to tC-C 0(2.4Over[u.4 The other alternative is to apply a fabric materials which isvfairly new%to Q ?>..ew.ewt- r«+d.�+-uh teeAl'%+ H4e..savke--in the northern states. Communities which have utilized fabric ma- terial on residential streets have been impressed with its performance to Page 2. 0021b date. The Minnesota Department of Transportation has utilized the fabric ma- terial on highways and have not experienced near the success. However, it is felt due to higher traffic volumes and speeds the fabric material does not perform nearly as well as on low volume and low speed streets. It is recom- mended the fabric material be utilized for this project. MULTIPLE AND ERODED CRACKING: These are areas where the existing pavement has to s Tt4('e wiere & kms lost .+s ftrer.4l: -4 k -A deterioratedn au e6 the only cost-effective approach from a maintenance standpoint is to remove the existing pavement. It is therefore recommended in these areas the \remaining pavement be removed and a 2 inch bituminous base course be constructed prior to the bituminous overlay. CONCRETE CURB AND GUTTER Curbing within Cedar Grove No. 1 and No. 2 consists of bituminous curb which is providing its primary function of containing drainage and traffic and providing a separation between street and yard. With the proposed bituminous overlay as':outlined herein construction for concrete curb and gutter should be considered. This construction would involve removal of the existing bitumi- nous curb and constructing a B618 concrete curb and gutter. Restoration of boulevard and driveways will be required. AREA TO BE INCLUDED: The area to be included would be platted lots within Cedar Grove No. 1, No. 2, and No. 4 as indicated in the preliminary assessment roll located at the back of this report. COST ESTIMATES: Detailed cost estimate for bituminous overlay and bituminous overlay with concrete curb and gutter are presented in the Appendices located at the back of this report. These costs are summarized as follows: Page 3. 0021b 0 Bituminous Overlay $419,400 Bituminous Overlay with Concrete Curb & Gutter $945,590 The total estimated costs presented above include contingencies and all related overhead. Overhead costs are estimated at 27% and include legal, en- gineering, administration and bond interest. ASSESSMENT: Assessments are proposed to be levied against the benefitted property. A preliminary assessment roll is included at the back of this re- port. Assessment rates are presented at various percentages of the total estimated cost per lot. Of remaining costs will be financed from For Cayes fs-e r�rroser) the major street fund for the City of Eagan. Cost percentages aceumedn cam_ of n /n 100%, 50%, or 25% of the total estimated cost per lot c rC "4• 1 resd ;ae r,ert wi4&," assessad<to the benefited property. bas cd ew REVENUE SOURCES: Revenue sources to cover the cost of this project 8e1auaing„ each percentage of the assessable rate as presented in the preliminary assess - o -re went roll as as follows: A. BITUMINOUS OVERLAY 100% Assessable Rate Project Cost Revenue Balance Street $419,400 Street Assessment $419,400 Major Street Fund - 0 - $419,400 $419,400 - 0 - Page 4. 0021b 50% Assessable Rate Street Street Assessment Major Street Fund 25% Assessable Rate Street Street Assessment Major Street Fund Project Cost Revenue Balance $419,400 $419,400 $419,400 $419,400 B. BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER 100% Assessable Rate Street Street Assessment Major Street Fund $209,700 209,700 $419,400 - 0 - $104,850 314,550 $419,400 - 0 - Project Cost Revenue Balance $945,590 $945,590 50% Assessable Rate (Bituminous Overlay Onlv) Street $945,590 Street Assessment Major Street Fund $945,590 Page 5. 0021b $945,590 - 0 - $945,590 - 0 - $735,890 209,700 $945,590 - 0 - Project Cost Revenue Balance 25% Assessable Rate (Bituminous Overlay Only) Street $945,590 Street Assessment $631,040 Major Street Fund 314,550 $945,590 $945,590 — 0 — The contribution from Major Street Fund are the same for both bituminous overlay and bituminous overlay with concrete curb and gutter at the 50% and 25% of the assessable rate. It is assumed all costs associated with concrete curb and gutter construction will be assessed completely to the benefited property. SCHEDULE Present Feasibility Report Public Hearing Approve Plans b Specifications Open Bid Award Contract Construction Completion Assessment Hearing First Payment Due with Real Estate Taxes Page 6. 0021b APPENDIX A COST ESTIMATE CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A) BITUMINOUS OVERLAY 15,000 Sq. yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 1,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 60,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 85 Each Driveway restoration @ $200.00/each 17,000 Total Construction $314,500 +5% Contingency 15,730 $330,230 +27% Legal, Engrng., Admin. & Bond Interest 89,170 TOTAL BITUMINOUS OVERLAY ......................... $419,400 Page 7. 0021b B) BITUMINOUS OVERLAY WITH CONCRETE CURB & GUTTER 15,000 Sq.yds. Remove bituminous pavement @ $1.20/sq.yd. $ 18,000 95 Each Adjust manhole frame @ $150.00/each 14,250 55 Each Adjust gate valve boxes @ $70.00/each 3,850 2,900 Ton 2331 Bituminous mixture for patching @ $32.00/ton 92,800 27,000 Sq.yds. Fabric material in place @ $1.00/sq.yd. 27,000 5,000 Gals. Bituminous material for tack coat @ $1.20/gal. 6,000 8,200 Ton 2341 Bituminous wear course @ $11.00/ton 90,200 430 Ton Bituminous material for mixture @ $180.00/ton 77,400 47,200 Lin.ft. Removing existing bituminous curb @ $0.50/lin.ft. 23,600 47,200 Lin.ft. B618 concrete curb & gutter @ $4.50/lin.ft. 212,400 430 Each Driveway restoration @ $200.00/each 86,000 32,000 Sq.yds. Sodding with 3" topsoil @ $1.80/Sq.yd. 57,600 Total Construction $709,100 +5% Contingency 35,460 $744,560 +27% Legal, Engrng., Admin. & Bond Interest 201,030 TOTAL BITUMINOUS OVERLAY WITH CONCRETE CURB ...... $945,590 Page 8. 0021b APPENDIX B PRELIMINARY ASSESSMENT ROLL CEDAR GROVE NO. 1 AND NO. 2 BITUMINOUS OVERLAY PROJECT 342 A. BITUMINOUS OVERLAY Cedar Grove No. 1 Block 1, Lots 4-11 Block 2, Lots 13-34 Block 3, Lots 1-19 Block 4, Lots 1-9 Block 5, Lots 1-32 Block 6, Lots 1-20 Block 7, Lots 1-18 Block 8, Lots 1-5 Block 9, Lots 7-19 Block 10, Lots 1-24 Block 11, Lots 1-11 Cedar Pond Park; Lot 10, Block 4 Cedar Grove No. 2 Block 1, Lots 7-30 Block 2, Lots 1-27 Block 3, Lots 1-19 Block 4, Lots 14-27 Block 5, Lots 1-36 Block 6, Lots 1-17 Block 7, Lots 1-52 Block 8, Lots 1-18 0021b Total Cost No. of Lots Per Block Cost/Lot 8 $ 7,803 $975 22 21,458 975 19 18,532 975 9 8,778 975 32 31,211 975 20 19,507 975 18 17,556 975 5 4,877 975 13 12,680 975 24 23,408 975 11 10,729 975 8 7,803 975 24 $ 23,408 975 27 26•,333 975 19 18,532 975 14 13,655 975 36 35,113 975 17 16,581 975 52 50,718 975 18 17,556 975 Page 9. Cedar Grove No. 4 Block 1, Lots 16-17 Block 3, Lots 7-15 Block 4, Lots 20-39 Block 6, Lots 17, 18, 19 TOTAL ....................... Total Cost No. of Lots Per Block Cost/Lot 2 $ 1,951 $975 9 8,778 975 20 19,507 975 3 2,926 975 430 $419,400 e3 9 - ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. 100% Assessable Rate 50% Assessable Rate 25% Assessable Rate SUMMARY Cost/Lot $975.00 487.50 243.75 Page 10. 0021b Cnsr/tor/yBA2 Is yr 106 /4s O° /07.2s- 775= S-3 c3 q8 11 z&,'Ll /Lcft ont $1 2 . 1 3.3 �oST� nr�anavru / S/- �0 �� S.x yr7 e3 9 - z23 a B. BITUMINOUS OVERLAY WITH CONCRETE CURB b GUTTER Cedar Grove No. 1 Cedar Grove No. 2 Total Cost No. of Lots Per Block Cost/Lot Block 1, Lots 4-11 8 $ 17,592 $2,199 Block 2, Lots 13-34 22 48,379 2,199 Block 3, Lots 1-19 19 41,782 2,199 Block 4, Lots 1-9 9 19,791 2,199 Block 5, Lots 1-32 32 70,369 2,199 Block 6, Lots 1-20 20 43,981 2,199 Block 7, Lots 1-18 18 39,583 2,199 Block 8, Lots 1-5 5 10,995 2,199 Block 9, Lots 7-19 13 28,588 2,199 Block 10, Lots 1-24 24 52,777 2,199 Block 11, Lots 1-11 11 24,190 2,199 Cedar Pond Park; Lot 10, Block 4 8 17,592 2,199 Cedar Grove No. 2 Total Cost No. of Lots Per Block Cost/Lot Block 1, Lots 7-30 24 $ 52,777 $2,199 Block 2, Lots 1-27 27 59,374 2,199 Block 3, Lots 1-19 19 41,782 2,199 Block 4, Lots 14-27 14 30,787 2,199 Block 5, Lots 1-36 36 79,166 2,199 Block 6, Lots 1-17 17. 37,384 2,199 Block 7, Lots 1-52 52 114,350 2,199 Block 8, Lots 1-18 18 39,583 2,199 Cedar Grove No. 4 Block 1, Lots 16-17 2 $ 4,398 $2,199 Block 3, Lots 7-15 9 19,791 2,199 Block 4, Lots 20-39 20 43,982 2,199 Block 6, Lots 17, 18, 19 3 6,597 2,199 TOTAL ...................... 430 $945,590 Page 11. 0021b .r . q ASSESSED COST Presented herein are assessed costs per lot for various percentages of the estimated cost per lot assuming the City's Major Street Fund would absorb the additional cost. Costs per lot per year and per month assume the assessed cost would be spread evenly for a 10 year period. The interest rate for bond- ing purposes is assumed to be 10%. The cost/lot for 50% and 25% of the assessable rate assume all costs associated with concrete curb and gutter con- struction will be assessed entirely to the benefited property. SUMMARY Cost/Lot 100% Assessable Rate $2,199 50% Assessable Rate 1,711 25% Assessable Rate 1,467 Page 12. 0021b LOST/� /Sr - yr tam r 5'39- s9 310 ;t37 F3� /&/ — Cost/Lot /Month ay vs 13 t5 sl �< ] a (.. II 10 LA E 74 ;9..Y 1 19 'N` •meq\4:`�F?s%ti 9 9 •g. z l e �:��: =•K'' I I Q 77 Iz 72 z 31 z 14 10 71 Ill'` I] 70 4 29 Y. 6 26 13 27 9 10 ] 9 29 :4 09 //I2 I ` 1 2 '�F.''>tey$L. 13 26 24 12 YO 22 a.a'' IY 2 Z` 24 27 22 21 20 I w 10 19 10 CEDAR GROVE NO. Is _ /e LOT 9 2° ] 9 le O "ig, — — J EOUMALENf 1s e ► RANDOM CRACKING . .� 4 a. MAP CRACKING n 9 /� it I la 1e 17 12 11 10 9 ► 47 Ifi CEDAR POND I iG r> Z CO A O / ® MULTIPLE ANDa a 2 PARK I n; ERODED CRACKING " }u. ] I\ 7 H •• • - 2 7 a 7 1 f ] a 9 10 11 ♦ CRITICAL DRIVEWAY 14 `��' e � .� 1 tt.F _ 4 O ; .. FILE No. 49229 I7 `'{,', 9 3 EAGAN, MINNESOTA BONESTROO, AOSENE, ANDENUK K ASSOC, INC. T C S A. H A6. 30 COI10 [9aaEEa SI. P.I. I SI. AI111wwb Z Z N O O ISCALE: 1"=2od Z Z s:. CEDAR GROVE NO. 2 RANDOM CRACKING 2 Q:PR40SE1 3 14 Is IB Il IB 9 20 21 92 23 24 0 A E I MAP CRACKING 4 MULTIPLE AND 5 27 ERODED CRACKING 35 13 51 4 A CRITICAL DRIVEWAY It 3 -4 3 W 4 O 7 50 3 IS 3 30 ,4 33 4 :11 4 R 15 FILE No 49229 9 494 EAGAN, MINNESOTA 9 k 4U5 13 5 32 15 5 17 47 - 14 6 BoNLSTROO, ROWNE, ANDERUX & AS&Wft• 7 CONSULTIN Dann 46 • a 30 20 s 19 12 4510 29 a 12 S LE- ! 44 19 IS 17 16 15 14 13 A W432 21 27 22 24 Zt ZZ 121 26 20 30 19 ze 29 30 24 ID Q 39 28 a.sp 13 16 17 LQ 12 3710 9 a 7