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05/07/1992 - Advisory Parks & Recreation Commission MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: KEN VRAA, DIRECTOR OF PARKS & RECREATION DATE: MAY 5, 1992 RE: MAY 7TH COMMISSION MEETING The Advisory Commission will meet at the Municipal Center, departing at 6:30 P.M. for a tour of Trapp Farm, Walnut Hill and Goat Hill Parks. The tour at Trapp Farm will also include some brief discussion concerning water quality and an improvement plan for Schwanz Lake. At 7:30 the regular meeting of the Advisory Commission will commence at the Municipal Center. There are three development proposals for the Advisory Commission.. As always, the informational packet as prepared by the Community Development Department is included for your review concerning these three items. NEW BUSINESS Staff will review for you proposed regulations to control impact onto boulevards and trail areas. This work effort is a product of an internal committee set up to review and propose an ordinance that would regulate surface disruption to boulevards and trail areas by contractors, utility companies, and others who wish to work or cross over boulevards and trails. A review by the Advisory Commission with recommendations concerning the ordinance would be appropriate before presentation to the City Council. OTHER BUSINESS AND REPORTS There are three items for the Advisory Commission, which are relatively brief in nature. If members of the Advisory Commission have any questions pertaining to these items, please feel free to contact me. Respectfull ub 'tted, Ken Vraa Director of Parks and Recreation KV/bls AGENDA ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION EAGAN, MINNESOTA Thursday, May 7, 1992 6:30 PM Eagan Municipal Center A. 6:30 P.M. Tour Trapp Farm Park, Walnut HillPark, Goat HillPark B. 7:30 P.M. Regular Meeting - Eagan Municipal Center C. Call to Order and Pledge of Allegiance D. Approval of Agenda E. Approval of Minutes of Regular Meeting of April2, 1992 F. Visitors to be Heard G. Consent Agenda H. Development Proposals (1) Lexington Pointe 8th Addition- James A. Curry & C. David Schenkel (2) Lakeview Trail Addition - Shamrock Development (3) Independent School District 196 - Jeerw^od Sch,)ol 2nd Addition 1. Old Business J. New Business (1) Proposed Regulations to Control Impacts to Boulevard and Trail Areas K Parks Development L. Water Quality (1) Proposed Schwanz Lake Water Quality Improvement Plan M. Other Business and Reports (1) Hawthorne Woods Update (2) Department Happenings (3) Ice Arena/Swimming Pool Update N. Round Table 0. Adjournment Subject to approval MINUTES OF A REGULAR MEETING OF THE ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION EAGAN, MINNESOTA APRIL 2, 1992 A regular meeting of the Advisory Parks, Recreation and Natural Resources Commission was called to order at 7:00 p.m. on Thursday, April 2, 1992 with the following Commission Members present: Erin Ipsen, Jonathan Widem, Lee Markeli, Jack Johnson, Ted Billy, Dan Mooradian, and Kevin Knight. Commission Member Deborah Johnson was not present. Staff present included Ken Vraa, Director of Parks and Recreation; Stephen Sullivan, Landscape Architect/Parks Planner; Dorothy Peterson, Superintendent of Recreation; John VonDeLinde, Parks Superintendent; Rich Brasch, Water Resources Coordinator; Jon Oyanagi, Recreation Supervisor and Cherryl Mesko, Secretary. AGENDA Jack Johnson asked that "Phosphorous Containing Fertilizer'" be added as Item #3 under Water Quality. Ted Billy moved, Erin Ipsen seconded with all members voting in favor to accept the agenda as amended. MINUTES OF REGULAR MEETING OF MARCH 5, 1992 Dan Mooradian moved, Lee Markeli seconded with all members voting in favor to accept the minutes as presented. CONSENT AGENDA It was noted that there were no consent agenda items for the Commission to review. GREAT OAKS ADDITION - ROBERT ENGSTROM COMPANIES This item was introduced by Director Vraa as an application requesting a Comprehensive Guide Plan change from D-3 multiple family to D-1 single family. The proposal also requests the rezoning from R-4 to R-1 and the preliminary platting of 29 lots on approximately 20 acres. Rich Brasch reviewed the water quality issues regarding this proposal. He continued that this residential development lies in the upper reach of Drainage Basin J and while there are no recreational- classed water bodies immediately down drainage, Fish Lake lies on the lower end of this drainage. On-site ponding to meet water quality standards is both desirable and feasible for this site. The larger of the two depressions lies in the west central portion of the site and could be excavated to provide a pond with a surface acreage of about .3 acres and a wet pond volume of .8 acre-feet and would serve about 10.6 acres of the site. The other depression lies in the east central portion of the site and could be excavated to provide a pond with a surface area of about .13 acres at normal water level and a wet pond volume of about .31 acre-feet which will serve an additional four acres of the site. Rich had indicated that in discussions with the developer they were agreeable to the water quality requirements. Stephen Sullivan reviewed the parks and trails issues for this site which included determining what the parks dedication requirements, trails dedication requirements and impact to the woodland resource would be. Steve continued that the Great Oaks Addition is within Neighborhood Park Service Area #14 and is served by Mueller Farm Park. The Woodlands Planned Development agreement provides for a cash parks dedication based on the rate schedule at the time of final plat. The proposal, Steve continued, should be subject to a cash trails dedication. Steve stated that he had just recently been made aware of a request by the developer for a credit of trails dedication fees in lieu of installing an internal trail system. s ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF APRIL 2, 1992 MEETING PAGE 2 After further discussion Ted Billy moved, Dan Mooradian seconded with all members voting in favor to make the following recommendation to the City Council regarding Great Oaks Addition: 1. The proposal be subject to a cash parkland dedication. 2. The proposal be subject to a cash trails dedication. Should staff feel that a change should be made in the costs of the trail dedication this issue should be brought back to the Commission for review. 3. The developer revise the easterly cul-de-sac to preserve additional woodland area. 4. The developer provide a schematic layout/grading plan for Lots 6 & 7, Block #1, for City review and approval prior to final plat. 5. The proponent revise the layout of the west cul-de-sac roads to minimize impact to the adjacent woodland. The revision shall be reviewed and approved by City staff prior to final plat. 6. The proponent revise the landscape plan to include tree protection fencing. The revised plan shall be submitted and approved by City staff prior to final plat. 7. The developer provides tree protection fencing for each lot to be reviewed and approved by City staff at the time of building permit application. 8. The development meet its water quality treatment requirements by creating two treatment ponds on-site. The larger of the two depressions to be excavated to provide a pond with a surface area of about .3 acres and a wet pond volume of .8 acre-feet, serving about 10.6 acres of the site. The second depression to be excavated to provide a pond with a surface area of about .13 acres at normal water level and a wet pond volume of about .31 acre-feet serving an additional four acres of the site. BOULEVARD PLANTING STUDY - WESCOTT ROAD Parks Superintendent VonDeLl.nde noted that at the November and February Commission meetings a report was presented to the Commission evaluating the feasibility of implementing a master street tree planting program in the City of Eagan. The results of that study concluded that of the 84 miles of boulevard included in the evaluation, approximately 4 miles met the minimum geometric standards for boulevard landscaping and did not take into consideration the presence of underground utilities, further restricting the viability of such a program. John continued that the Commission directed staff to examine in greater detail the feasibility of developing a "streetscaping" program along Wescott Road between Pilot Knob Road and Lexington Avenue. John then introduced City Forester Tom Schuster. Mr. Schuster explained that appropriate utility companies had been contacted in March to request utility locations along Wescott Road. Additionally, the city's Engineering Department revealed that the road right-of-way extends from the center line of the road to a point approximately' 12" beyond the back of the curb. Mr. Schuster then reviewed a very extensive slide presentation showing where each utility was located within the boulevard on Wescott Road and the impact that planting would have on the boulevard. Some of the items reviewed by Mr. Schuster included the fact that the boulevard width on the south side of Wescott from Pilot Knob Road to the library is 10 feet. The boulevard width from the east entrance of the library to Denmark is 12 feet and it then widens to 14 feet. The north side of Wescott Road provides more boulevard room. There are 14 feet for planting from the gas line to the trail. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF APRIL 2, 1992 MEETING PAGE 3 Tom stated that it would be difficult, if not impossible, to place plantings on the south side of Wescott Road because of the location of utilities. On the north side of Wescott Road the only obstacle to deal with would be the overhead utility lines which can be addressed. Yet another option would be to provide for no plantings at all on this boulevard area. Lee Marked suggested considering oak savannah or prairie on the north side of Wescott Road and then have concentrated plantings near the library and City Hall on the south side. John VonDeUnde stated staff will look at concepts for the northern side slopes as well as shared opportunities with residents on the north side. After further discussion the Commission suggested that staff consider some of the options presented and do a pilot area that can be expanded upon. John VonDeLInde suggested that staff look at some alternatives and get back to the Commission in 1-2 months with costs and options so that the Commission will have something more definite to react to. ARBOR DAY RESOLUTION Director Vraa introduced this item to the Commission noting that Arbor Day would be April 25 and the celebration would be held at Wescott Station Park. Superintendent of Parks VonDeLinde read the proposed Arbor Day Resolution to the Commission.. Jack Johnson commented that this program has been embraced whole-heartedly in the past and would like to see the support continued. After further discussion Kevin Knight moved, Erin Ipsen seconded with all members voting in favor to recommend to the City Council the adoption of the Arbor Day Resolution. B-BOP TO WORK - MAY 19 Director Vraa introduced this item explaining that the Minnesota Department of Transportation sponsors a B-BOP to Work Day in Minnesota which encourages Minnesotans to bicycle, walk, car pool or bus to work on a specific day. Recreation Supervisor Oyanagi explained that May 19, 1992 has been scheduled as the date for this activity and asked the Commission to consider adopting a Resolution supporting B-BOP to Work in Eagan. After further discussion, Ted Billy moved, Dan Mooradian seconded with all members voting in favor to recommend to the City Council the adoption of the B-BOP Day in Eagan Resolution. DEERWOOOr PONDS UPDATE Water Quality Coordinator Bras;Y reminded the Commission of a discussion in March regarding prospective water quality treatment requirements for the Deerwood Ponds development. This single family development is located along the south side of Diffley Road, west of Pilot Knob Road. Initial staff recommendation was to require raising the normal water level of pond BP-27 by one foot and increasing to .75 acre/feet the storage volume of a smaller wetland to the north. Subsequent investigation by the developer's engineer, along with city staff review, indicated that raising the normal water level in pond BP-27 was not possible without further submerging the storm sewer system that ties into the pond, causing probable maintenance problems. Mr. Brasch continued that final analysis showed that increasing the wet pond volume of pond BP- 27.2 to .4 acre-feet of an acre/foot, and increasing the wet pond volume of pond BP-27.1 to .7 acre-feet will meet treatment standards for the development. The developer would also install a skimmer on the outlet of pond BP-27. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF APRIL 2, 1992 MEETING PAGE 4 After further discussion Erin Ipsen moved, Dan Mooradian seconded with all members voting in favor to recommend that the development comply with city water quality treatment requirements by increasing the wet pond volumes of ponds BP-27.1 to .7 acre-feet and BP-27.2 to .4 acre-feet of an acre/foot along with installing a skimmer on the outlet to pond BP-27. STREET SWEEPING/SANDING UPDATE Water Quality Coordinator Brasch introduced this item as a response to an inquiry by the Commission in March. Some of the questions the Commission had asked included 1) Who conducts sanding and salting operations and street sweeping activities within the city? 2) Are records kept of the amount of sand and salt spread on city streets as well as for the amount of debris picked up through street sweeping operations? 3) What do those figures show? 4) Is sand and salt used at a heavier rate in Eagan than in other communities? 5) What is the chemical makeup of street sweepings and how are they disposed of? In response to Question 1, Rich explained that the Street Division within the Department of Public Works conducts these operations on all city streets excluding those that are also county highways. Dakota County Department of Highways generally conducts these operations for county highways such as Lexington, Yankee Doodle, Pilot Knob, Diffley, Cliff and Lone Oak Roads. Also Minnesota Department of Transportation sands, salts and sweeps state and inter-state highways within the city. In response to Question 2, it was noted that Public Works keeps records of the volume of sand and salt applied for snow and ice removal as well as the volume of debris picked up through sweeping operations, however there are no similar numbers from Dakota County. In response to Question 3, Rich reviewed a chart showing the units of measure for snow and ice control and the sweeping operation from 1985 through 1991. The information revealed that approximately 60-70% of the sand/salt is picked up for disposal. In response to Question 4, the information revealed that other cities surveyed use approximately 6-8 tons of sand and salt per mile whereas Eagan uses approximately 4 tons per mile. Rich noted that there have been some instances of over application at times, however the Streets Department has been sensitive to the environmental impact and will continue to be. John VonDeLinde added that there appears to be an increased level of sand on the boulevards on county roads resulting in additional labor to sweep the boulevards. In addition, the salt that remains on the turf causes a maintenance problem. Jack Johnson thanked staff for their.prompt response to this Issue and for the thorough report presented. PHOSPHOROUS CONTAINING FERTILIZER Jack Johnson introduced this item as an addition to the agenda. He suggested that the city take a pro-active approach to the level of phosphorous allowed for turf applications. Jack suggested that an ordinance be considered which would limit the phosphorous level in fertilizer to less than 3%. He asked that staff investigate what is occurring in other communities and asked other Commission members for their feedback. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF APRIL 2, 1992 MEETING PAGE 5 Ted Billy asked how lawns would suffer by lowering the phosphorous level of fertilizer. Rich Brasch stated that phospeous stimulates root growth, however, in testing done on residential lawns, 80-85% had adequate phosphorous in the soil. Mr. Billy asked If soil has sufficient phosphorous would it need to be supplemented at a later date, i.e. 6-8 months. John VonDeLinde responded that 90% of test results indicated no need for additional phosphorous, however, he noted that starter fertilizer has a larger percentage of phosphorous but that level doesn't need to be maintained long term. Mr. Billy asked if banning phosphorous would cause a legal problem and suggested that the emphasis be placed on education rather than establishing an ordinance. Mr. VonDeLinde noted that this would tie in very well with a new brochure. John did add that the City of Shoreview had a ban on phosphorous over 3% and found it very difficult to enforce. Ted Billy added that he felt folks in the area would willingly cooperate once they were aware of the facts. Dan Mooradian stated that a large percentage of homeowners and companies use a commercial service to fertilize their lawns and very few commercial firms provide the composition of their fertilizer. In discussing testing of phosphorous levels for homeowners, Kevin Knight suggested that the city do some spot testing near water bodies. Dan Mooradian asked if the University of Minnesota might do a "testing day" where they set up at a specific location and homeowners can stop in with a soil sample for testing. Jack Johnson asked if it was feasible to make a recommendation to the City Council that phosphorous level be maintained at 3%. Director Vraa suggested that staff look at the Shoreview ordinance, do some additional research and get back to the Commission at a later date. DEPARTMENT HAPPENINGS Superintendent of Recreation Dorothy Peterson reviewed some of the Department Happenings which included pre-school program registrations reaching their capacity at registration, children's egg hunt on April 18, and 200 teams registered for 1992 adult softball. City Forester Tom Schuster explained that the City had received their 5th Annual Tree City Award and National Arbor Day Foundation Growth Award at the University of Minnesota. Tom outlined the requirements for each award and then presented to Jack Johnson, on behalf of the Advisory Parks, Recreation and Natural Resources Commission, both awards. Mr. Johnson accepted the awards and thanked department staff for their continued good work on behalf of the City of Eagan. Mr. Schuster added that the most fun with these projects is the interaction in the schools with the kids. The poster contest continues to be the highlight of the Arbor Day activities. He continued that the Department of Agriculture and DNR currently pick out Arbor Day posters as well and Tom has suggested that a child's poster.be used as the state poster. They are giving that some consideration. ICE ARENA/SWIMMING POOL UPDATE Director Vraa shared the video done by Carl First of Leisure Concepts and Ken Vraa which will be airing on cable TV over the next several weeks. This was done to provide additional information to the public regarding this proposed facility. Ken continued that the City Council will meet in one week to adopt a dollar amount for the referendum. .9 ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF APRIL 2, 1992 MEETING PAGE 6 4 41 JOINT MEETING WITH COUNCIL - MARCH 31, 1992 Director Vraa asked Commission members N they had any comments from the joint meeting. Ted Billy stated that he was impressed with the knowledge of the City Council relative to parks issues. Jack Johnson added that some of the discussion included fees and charges for organizations such as EAA, YMCA, etc.; the construction and improvements to Blackhawk Park and the need to update the Park Plan by 1993. REVIEW OF TWO NEW FORESTRY BROCHURES John VonDeUnde introduced the 3rd and 4th brochures which are scheduled to be published by Arbor Day. These brochures include dealing with home landscaping problems and planning the residential landscape. WINTER PROGRAM REPORT Recreation Supervisor Jon Oyanagi outlined the winter program activities for 1991-92 commenting on the unusual winter that necessitated some changes to scheduled activities. Due to the early snowfall the tubing hill opened three week-ends early and stayed open one extra week-end. Jon continued that staff did a better job of helping park users enjoy the winter through increased interaction, leading activities, enforcing rules and keeping a presentable warming shelter. The hot chocolate sales were very successful again and the sites at Clearwater and Trapp Farm Park were heavily used sites. Jack Johnson noted that he had observed several skating facilities that were empty; one of which was Pilot Knob. He continued that the numbers of participants seemed to be higher where there are shelter buildings and supervisors. Jon added that the Pilot Knob site has a trailer for shelter but attendance has been steadily dropping over the last several years. ROUND TABLE Lee Markell asked if the packet information could be received by Commission members earlier than the Tuesday before the meeting. He expressed the need to review the information more thoroughly and also wanted to visit the sites where development issues would be considered. Director Vraa stated that based on the time frame the department has to work with, it is difficult to get packet Information out any earlier. It was felt that if, at some point in the future, the Advisory Planning Commission and Advisory Parks, Recreation and Natural Resources Commission could switch their meetings there would be more time to respond to issues in a timely fashion. Lee Markell suggested a vehicle whereby Commission Members could have a preview of development issues that will be on the next agenda and perhaps visit the sites at their leisure before the meeting. Steve Sullivan stated he would be happy to meet with any of the Commission Members on site to review the site and answer questions before the meetings. Ken Vraa reminded the Commission of the change in schedule for the May meeting. The meeting will be preceded by a tour of parks beginning at 6:30 PM with the regular meeting beginning at 7:30 PM. With no further business to conduct Erin Ipsen moved, Lee Markell seconded with all members voting in favor to adjourn the meeting. The meeting was adjourned at 9:50 PM. Secretary Date Al. MEMORANDUM TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARKS PLANNER DATE: MARCH 24, 1992 RE: LEXINGTON POINTE 8TH ADDITION - JAMES A CURRY PROPOSAL An application has been submitted requesting a Comprehensive Guide Plan Amendment from Commercial Planned Development to D-1 Single Family. The request also includes the rezoning of approximately 80 acres from Community Shopping Center to R-1 Residential and the preliminary platting of 167 single family lots. BACKGROUND The parcel is part of the Lexington South Planned Development. The Planned Development initial land use plan has been continually amended down zoning large tracts from commercial to R-1 residential. This down zoning is represented by the Lexington Pointe 1st through 7th Additions. The current request compliments the past down zoning. The parcel is located south of Co. Rd. #30, east of Co. Rd. #43, north of Walnut Hill Park and west of the Lexington Pointe sub-division. (Figure #1) FOR COMMISSION REVIEW The Commission will need to review and make recommendations to the following items: 1. What is the Parks Dedication obligation? 2. What is the Trails Dedication obligation? 3. What is the impact to the woodland resource? ITEM #1 - PARKS DEDICATION The parcel is within P.S.A. #26 served by Walnut Hill Neighborhood Park (See Figure #2). Trapp Farm Park and the Highline corridor also provide a complimentary level of service. The current P.S.A. limits includes all property west of Dodd Road, south of Co. Rd. #30, north of Co.Rd. #32, east of Co. Rd. 43 (south of the Highline Corridor), east of Daniel Drive (north of the Highline Corridor). The perpetual residential down zoning has resulted in additional residents within the park service area. Approximately 243 existing single family lots have been platted west of Daniel Drive outside the original P.S.A. limit. The current LEXINGTON POINTE 8TH ADDITION PAGE TWO proposal adds another 167 lots. These additional units equate to 1332 park users. The build out population for P.S.A. #26 is approximately 4700. The Park System Plan standard for population served by a neighborhood park is 2000 to 5000. Staffs build out estimate of 4700 lies within the upper range of this standard. Approximately 67% of the build out population is within the 1/2 mile optimum service range from Trapp Farm and Walnut Hill Parks. The entire P.S.A. population is within 3/4 miles of these two parks. Both parks provide adequate facilities and acreage to serve the Park Service Area. Therefore, the proposal should be subject to a cash parks dedication. ITEM #2 - TRAIL DEDICATION The original Planned Development Agreement required that trails be installed and their costs borne by the developer. Continual revision of the Planned Development has resulted in an amended agreement which now requires plats to no longer install trails, but to pay a cash trails dedication. These developments will also be responsible for grading the trail, providing the necessary easements, right of way and outlots to accommodate these pedestrian corridors. Therefore, staff recommends that this proposal be subject to a cash trails dedication. The plat also carries the responsibility of providing a north/south trail corridor from Daniel Drive to the Highline Corridor. Tri-land Development has provided escrow money to the City for this trail link. The current proposal indicates an 8' bituminous trail alignment running from Daniel Drive, along the south side of Eagan Center Road to an outlot between lots 46/47. The trail corridor continues in a landscape median of Pointe Esplanades to Lexington Pointe Parkway. Crossing Lexington Pointe Parkway, it continues easterly within the southern boulevard where it traverses south along a pond, terminating at the Highline Corridor. Another trailway is proposed on the north boulevard of Lexington Pointe Parkway from Eagan Centre Road to Pointe Esplanade (See Figure #3). Staff has reviewed the pedestrian plan and has several recommendations the Commission may consider. The proposed 8' bituminous trail located within the north boulevard of Lexington Pointe Parkway, should be relocated to the south boulevard. This trail alignment provides a continuous trailway along the roadway from Lexington Avenue to the Highline Corridor. The City's Engineering Department is requesting the road access to the lots south of Lexington Pointe Parkway be relocated and aligned with Pointe Esplanade Road. Park staff feels this realignment in conjunction with a four (4) way stop would facilitate a safer pedestrian crossing. The landscape pl:?. indicates tree planting in close proximity of the trailways. In consideration that either a cash trails dedication or escrow will cover these trail costs and implementation is the responsibility of the City, it is necessary that all trails are installed 12• LEXINGTON POINTE 8TH ADDITION PAGE THREE compatibly with the development of Lexington Pointe, 8th Addition and Lexington Pointe Road. The developer is responsible for grading the trail pad, providing pedestrian ramps and assuring no encumbrances within the pedestrian corridor. In this case, the developer shall also be responsible in a coordinated effort with the City for the installation of the trailways. ITEM #3 - WOODLAND PRESERVATION A majority of the parcel has been graded and is void of any wood plant material. A significant wooded area lies north of the Highline Corridor adjacent to Walnut Hill Park. The proposal indicates single family homes lining the Highline Corridor off several cul de sacs within this wooded area. Staff is currently waiting for a tree massing survey from Tri- land development in order to evaluate developmental impact on the woodland resource. Staff will have this information at the Commission meeting. FOR COMMISSION ACTION The Commission may consider the following recommendations: 1. The plat be subject to a cash trailway dedication. 2. The plat be subject to a cash park dedication. 3. The proposed 8' bituminous trail located within the north boulevard of Lexington Pointe Boulevard be relocated to the south boulevard. 4. The road access to the lots.south of Lexington Pointe Parkway be relocated and aligned with Pointe Esplanade Road. A four (4) way stop with cross walks and pedestrian ramp should be implemented at this proposed intersection. 5. The development shall be responsible for grading a 10' wide trail pad, providing an all pedestrian ramp, and assuring no encumbrances within the pedestrian corridor. Trail gradients and pedestrian ramps shall meet ADA design requirements. 6. The applicant shall be responsible in a coordinated effort with the City for the installation of trailways. SS/bls /3• j v l1T✓ ' ~ ~ BIER _ .wE D s _ ~ I ~ u / CT SCOTT ESCOTT I \ o: MO. C Q J s ~ W EA SAN 75 s~ i v ~ q~E 3 LL CENTERL u. tied M7N wF ^ 1 g y ~ ftA TIM*wKwai Sr~ ~ 1 ~I ~ C NE~.b~ ~ RIDG c rr I I I ERNr OR. FORD ~ ~ - _ rR w NI RO ;F J a [LE s a I t BERRY AMN 41 ~.a G a dal . J PAR/ 3 a ~ 1 . O p0 1 Y a 6R~ a r:/ a °~F? atrr CT. ~ ~ ~ a3 f V NMT Lml i ~ 4 i 4 x ti. 55 W r/ j J ♦ } MCHB C[ ,F. i O ^ : j P ` C0. SRI. Ib. ow LC'r 1 p/,fRR% t' f YSON CK 'I s J L < N PL. ~j u~ 4F St2 r n Fir. ti z L E R ~,3 f MNE 7 fl ^ OW* _ N P o nok s a. ^ tip . T rl. 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I I i~ NWM MEMO TO: ADVISORY PARKS RECREATION AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: APRIL 28, 1992 SUBJECT: WATER QUALITY REQUIREMENTS FOR LEXINGTON POINT - 8TH ADDITION PROPOSAL This preliminary plat application is for single family residential development consisting of 167 single family lots on a approximately 70 acres as well as 6 outlots totaling approximately 10 acres that will eventually be developed for commercial uses. The proposed developments are located on the southeast comer of Lexington Road and Diffley Road. Approximately 65 acres of the total 80.4 afire parcel are now zoned for commercial purposes, so a change in zoning to single family residential has been requested as well. FOR COMMISSION REVIEW The commission will need to review and make a recommendation regarding whether the development should be subject to a ponding requirement or cash dedication requirement to meet water quality standards as set by the City and its water quality management plan. WATER QUALITY ANALYSIS This development is located in the south central region of drainage basin J (Figure 1). The nearest downstream recreational class water body is Pond JP-9 and Patrick Eagan Park, a Class II Lake intended to have water quality sufficient to support indirect contact recreation. Pond JP-9 does not currently meet the water quality standards set for it in the City's Water Quality Management Plan. On-site ponding to meet the water quality standards for a portion of this development is both desirable and feasible. A partially constructed pond, Pond JP-50, lies in the southeast corner of the proposed development (Figure 2). This pond can be used to treat storm water from the roughly 70 acres of the parcel that will be developed for single family residential use. The remaining 10 acres south of Diffley Road are planned for commercial uses but will be platted as outlots. The developer has elected to deal with water quality requirements for that area when it is re-platted for development at a later date. Storm water runoff from about 54 acres of the Lexington Point - 8th Addition single family residential development will drain to JP-50 under the proposed storm sewer configuration. 7• LEXINGTON POINT - 8TH ADDITION April 28, 1992 Page Two The remaining 16 acres will drain offsite around the edges of the development. However, 16.8 acres of the Lexington Point - 3rd Addition off the southeast comer of the 8th Addition presently drains to Pond JP-50 and can be treated once the pond is completed. The 3rd Addition received plat approval prior to the effective date of the City's water quality ordinance. In order to meet treatment obligations for the platted single family residential area within the Lexington Point - 8th Addition, credit could be given to the developer for using JP-50 to treat runoff from the "grandfathered" 3rd Addition to make up for area in the 8th Addition that can not be intercepted by JP-50. To meet treatment standards, Pond JP-50 must have a minimum surface acreage of 1.1 acres, a minimum wetpond volume of 5.7 acre feet and a minimum average depth of 5.3 feet at the normal water elevation. The pond should be constructed according to National Urban Runoff Program Standards and the pond design should be approved by the City. In addition, installation of the skimmer on the outlet of Pond JP-50 should be required. STAFF RECOMMENDATIONS Staff recommends that the development meet its water quality treatment requirement by constructing an on-site pond to treat runoff from the proposed single family residential development. The storm system layout and pond design must be approved by City staff prior to final plat. RICH BRASCH WATER RESOURCES COORDINATOR RB/sb 28wp.advisor2.119 3r-,4z CL. VI 6 1~ Sl -32.2 FIGURE ] vi wo FI ICL~l1 vL.S I JP{8' lz" F `PA ~.r 12" LJ t ~3r ~t8 I JP - II w RRO K A CL. Vwl IAN 8 MO l r 0 LAgUE A00, -ate I jp- jp = l11 - -m - CITY CL. V L.VI JP-58l CL. V11 ARK ~T t C L. IV ~2 v --p HALL F9 4 Jim ~P-10.0 130 JPL I y VII CL. 1L'- L t CL. VI - 'gyp JP- 20.1 sR~c° -Jf 7SiZ J-f l: ~h SO CL. V =ate' UNI rr ,TL . V11 p- 42 36 4 36" lop CL. it iK-W- L.VII `JP-557- nOSFOR ~c- JOHN VI i74(' H' FIRST _ i -9V 1 RK S E~ N - F ASE J a r1H ° :iL J t Rc JP-3 ADD I N F -JP=53 IP-22 (1NAR J JP-!~ TRICK H - _ CL. C:V CL.VII CL.I4 _AGAN miE~I► I HILLS 'M' sirr v` ( PARK t r - \ sc. H J(T=2T\ nn -4 CL. V - AN La1.1 G' ^.r..- f 1~ PLAZA VP-69 ~G"• _ - PQA may. AUF "y!-~QS _.I _s► a ~ 8. - --./'~lsY ~l1ti£i„~'^ l _ Location o~ Development - - `IN-_ vt - ~ t.. ~ Z1 D - ; 27 •i Y_Mo[ ~ 1 oEX OINTE _ r a 1A A" r ,.LS 15~ LP-61.1.1 _ p T I I ^`1 La,Q I wal1L: CL. V 1 C•L. Vi1 - Z)v n HILL LY(E -Cl PA V1 ~A 1 r M G 3p - l _ 4- CL. II B ~r 24,. I' ^ ' 26 IQ I; H I ~Y O I.ti ` I F T LP-45 I1 ferl7►1,8P-3 CL. II C.L. VI 1 LP-38 • `mac ~ LP-68 CL. 1 \ i CL. IV { ~s•-~• 12fr PARKVIEw O p' GOLF 16AKOTA IV I~ "OURSE LP-20 COUNTY LP-21 LP 24 H BP-137 ' CL.I V PARK CL. IV CL.I 2 0 AdilD jE0RGE-DHM N PARK (,'I", IV ~t • ~'Ly 1 CL:1V r EXCEPTWN LP-56 4CHAPEL MILL) LP-13 LP-19 MO" BAPTIST CHUR64, II (NOT INCLUDED CL. I V ~ CL. 1 I 0 INLFoR~ I-p- "'K ~A' 1 " w CL. I ( I Z • e ~ I I I - o'p't ~ ~I ( • FIGURE 'W 2 = " z ; I I ~ i 'r i !S 11 _ t o IN3wfas►a .os p~ I , 1 11 111 1 $ Z ~ $ / • =t , ~ I 4-L; I Ci I \ I 46 h MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARK P DATE: APRIL 28, 1992 RE: LAKEVIEW TRAIL ADDITION APPLICATION/BACKGROUND An application has been submitted requesting the rezoning of 19.64 acres from Agricultural to R-1 single family and the preliminary platting of 37 lots. The subject parcel is located south of Manor Lake Addition, west of State Highway #3 and east of Dodd Road. COMMISSION REVIEW The Commission will need to review and make recommendations regarding the following items: 1. What is the parks dedication? 2. What is the trail dedication? 3. What is the impact to the woodland resource? ITEM #1 PARK DEDICATION The parcel is within Neighborhood Park Service Area #36 W. Staff had evaluated this Park Service Area with the platting of the Manor Lake Addition. The Commission recommended that the Manor Lake Subdivision provide a land dedication of approximately 2.6 acres, and the rough grading of the parkland. The Commission anticipated a future parkland dedication of approximately 2 acres from the adjacent undeveloped parcel now being reviewed as Lakeview Trail Addition. 21. LAKEVILLE TRAIL ADDITION PAGE TWO Staff has worked with the developer of Lakewood Trail Addition regarding the location and size of the future parkland dedication. The plat area is 19.64 minus .24 acres previously with the Manor Lake sub-division acres, which equates to a parkland dedication of 1.94 acres. The current proposal provides 1.54 acres as parkland (See Figure #1) This area abuts the parkland parcel acquired with Manor Lake Addition. Staff has evaluated the feasibility of a 'best pocket" neighborhood park layout using these two parkland parcels. The facility program includes a ballfield, playground, hardcourt, parking lot and trailways. A lake access is anticipated to the north. (See Figure #2) This layout does not take into account several small parkland dedications which will occur with the development of the Holtz Farm located north at the proposed park. Also, as depicted by the concept plan a roadway corridor may be located north of the proposed hardcourt to serve the Holtz parcel. The parkland area is 0.40 acres short of the 1.94 acres required. This 0.40 acre short fall equates to a cash equivalent of $5,195.87. ITEM #2 TRAILS DEDICATION The plat is subject to a cash trails dedication. ITEM #3 TREE PRESERVATION The site is void of trees with the exception of a 40' X 100' woodland located within Lot 18 & 19. (See Figure #3) The tree type _ is primarily mature Weeping Willow and White Poplar. The grading plan indicates the removal of these trees providing for a storm water treatment pond. FOR COMMISSION ACTION The Commission may consider the following recommendations: 1. The plat be responsible for a parkland contribution of 1.54 acres as configured by the site plan dated March 16, 1992. 2. The plat be responsible for a cash park dedication of $5,195.87. 3. The plat be responsible for a cash trails dedication of $3,700.00. ZZ- I a L o o40 930.0 x W 908.4 W I's 413.66' 1i I JJ• S V U P A R K V_ ;q. Ft. 67,169. sq. ft. 930.7 1.54 acres 908.7 1 ~ O ai ,L 6 ~o~ fro 12.728. sq. ft. \ p q~9"° 1 93t. ~ eJ 13.182. sq. Ft. •t i i. ey J a5 ~9 •Q. J J 5 12,259. sq. ft. 12.054, sq. ft.o~. 03 12,350. sq. ft. 12,732. sq ft. s. e 17 927.7 6g'Sd 2,025. s4 ft 1'l.4 9r.7 ~~e5a1. 910.3 927.3 176.65' x.82 a 9.6 0 11.0 5, 81100 918 39b25. scp ft. ^'a~^ 8Y: to Drowing Titir Date: C~ Cf F .1t~ "Gum *a. 424 (9 23. ~k-~4'C1CI\,~ ~ 00 31MM kA 10600D JCAIP ~~tl1 6u~aa~( ~i n JS uAo,d t+,aa/~ s ~itia~ ' M'1~ • d ~s~r1 _ s oaL ! Z ~ ~ • ~ L Ic7i ' I ` Q'T3L.'1'77r ~ w3 Sop" -CV 1 1 i 000 1~~,►asv.. GN7& ' ~ ~ T'LIGt~ QdtllCl.~ • ~ ~nt1-nrss~ ~ - dM k~Y ~dglcti 1 cw.,a .4.,~ ~A orntna~ .Z o / \ 919 18 929.5 925.5 \ Z 925.5 925.5. v 1 928 "926 DGE OF POND TO BE FIELD LOCATED -924 POND LP-26 ~ - ~ -922 NWL = 920.2 920.2 HWL = 922.5 POND DATA NWL = 922.0 SURFACE AREA = 0.27 WET STORAGE 0.82 AC. FT. MAXIMUM DEPTH - 6.0 FT. QtOEI - TOPSOIL All disturbed areas She topsoil plated. PMILIEER Apply 400 pounds per act fertilizer. Incorporate surface soil by disking SEWING Permanent seed is shall to be plated after 1brmN "MCNINC Straw should be spread u acre and anchored with ei ^•n~n @y %bag oj:' a Mowing Title Dote Z~j. 7?"= 1~1 nary wo. MEMO TO: ADVISORY PARKS RECREATION AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: APRIL 28, 1992 SUBJECT: WATER QUALITY REQUIREMENTS FOR LAKEVIEW TRAIL, ADDITION PROPOSAL This preliminary plat application is for a single family residential development consisting of 35 lots on 19.5 acres, located just west of State Highway 3 in the northeast quarter of Section 36. The land is now zoned for agricultural development, so a change in zoning to single family residential developing has been requested as well. FOR COMMISSION REVIEW The commission will need to review and make a recommendation regarding whether the development should be subject to a ponding requirement or cash dedication requirement to meet water quality standards as set by the City and its water quality management plan. WATER QUALITY ANALYSIS This single family residential development is located in the upper reach of drainage basin L and borders the north shore of Pond LP-26, a Class II 13-acre lake that is intended to have water quality sufficient to support indirect. contact recreation activities, such as canoeing and fishing (Figure 1). Pond LP-26 will receive storm water runoff from the majority of the developed site. Present water quality conditions in LP-26 are not known, but the City's policy is not to allow any degradation in recreational-classed water bodies like this one. Of the 19.6 acres of development, approximately 5.81 acres will be occupied by either a lake, treatment ponds or a neighborhood park. On-site ponding to meet treatment requirements for the remaining 14.4 acres of the site is both feasible and desirable. In order to meet treatment requirements, two ponds would be constructed on-site (Figure 2). The first would be located on lot 16 and 17 and would receive and treat runoff from about 6.3 acres of the site before discharging to Pond LP-26. The treatment pond would be constructed to provide a minimum of .26 acres of surface area, .68 acre feet in volume below the normal water level, and be at least at 2.5 feet in average depth. 27. LAKEVIEW TRAIL ADDITION April 28, 1992 Page Two The second pond would be located in the northeast comer of the site and would intercept and treat runoff from approximately 3.5 acres of the Lakeview Trails Addition, as well as 3 acres of the Manor Lake 3rd and 4th Addition that currently drains and treated to LP-26 through ditch along State Highway 3. Treatment of the runoff from the off-site areas and the Manor Lake Additions would be r uir in order to make up for areas within the Lakeview Trails Addition that generate runoff that can not be intercepted by either pond. Again, minimum design parameters for this treatment pond would be 2.6 acres in area, .68 acre feet in wetpond volume and 2.5 feet in average feet in normal water level. STAFF RECOMMENDATIONS Staff recommends that the development meet its water quality treatment requirements by creating two treatment ponds on-site. Storm sewer layout and pond design should be reviewed and approved by City staff prior to final plat. RICH BRASCH WATER RESOURCES COORDINATOR RB/sb 28wp.advisor3.119 ids A-0. FIGURE 24 " DD GP-4 WILLIAM$ LARIUE~ApDD. L.VI JP-58* CL. VWZ ?a 1 CL. IV `Z w y 1 30 JP4O. k-5 VII CL. 14 , , 1 r JP- 20.1 1 CL. V i6 16\9RIDAgJ "54 L. VII Roo eol* 3~ t s .rT r: Z JP- 23 CL. 36 4223 36" 1 24 JP-2 h~ ,,ex.;' C L V L VI RK t. E AN _ F $ngGH ° H LImv, p" JP-25.1 CO T Y Rc, ~ JP-3 ADC 1 N .\~.P= 53 JP-22- i/ CL. V CL. YID;=V CL.VII ~t LEXI HILLS ' - v AODN.I JQ-4 +iL.S.-18 _ WI~ 7P_27_\ -`lTP-2 1 +j CL.. V r.L.Y z - s 3. r[IRCHNER T a~ i R~ F- 3O qs 1 P- 51 jEA aN j J X11 = 1 ~ urE ~auaroe s s so. 00.42 ~r P6'!I ' VII ~c - 1' 1 '%ENSUX Isr. aClD.. - JP-52 JP-68 ~L - POINrV1 "3UAL` CL. IV CL. V -MEN 44 err ~t DD w, EXINGTON r 0-0 'r ARM ago/ 7T ftftftm J ` LP-6I.I MONISM A K SrDE PARK ~ ~ wAL."+CL. V l CL. v I ~ - ~ r111 CO 'HILL ~c: ..dCc IPKI, L. ' MER 'j 4 CAK. c L-. r ; = LP-37 LP-67 CL. II.' P. 7 P-30 CL. V Af0~ij - CL V L . 11 L P; Z ~CL u C1 -29 ' 26 I8 NI-, V A LP-45 f u" v CL. LP-38 KE__ ` C L. I z A 0 'KO TA COUNTY - LOCATION OF DEVELOPMENT R PARK LP- 27 o ?CL. IV p t CL. IV 12* ExCEPTiUN O (NOT INpCALUDED LP CL. I ADD -19 MORONI rr7-7 11 A00-4 ` CL.1 LP-22 , rM CL. 1 I -23 -12' LP-15 ,i CL. 11 LP-66 N CL.- IV ~ I _ r 1•---a ea r. FIGURE 2 - a• i•~titjf,l;l~:=ili=sS'i1 ir•.; ~::I : 1 sl:irf!-S({ •yj f=I{,+isl:~~l:l~,~ r r ( a'}~ `►~+=,ll~i i:i,lr,f;~iii:i~li =i=1:+ F+j. irii~i src!i•! ==.i; ► f jfrii.rl+ !Hal ~j:ij! ~ j +•,i!°f: Is= ji~j:!+;ISfi~E::! f`+~ C I I.ijil{=-ls it=i, Z L1 iIt'll; v + r f 1 trig S : ljj 1 ! .St;sfljj f 1 3 - - - - . c? < o r14 #:fllliiefj+ Ilf1#ir+ijti•:itj ir=S 2 f h~ if j;1}jflI%ljJ!d_;lliif;jl~f ~!r f 1 l~! f r--I a I ~ , I _ ~ f ^ It tl i ~ \ t ~ Y SA, ills i 11 Z r r f it MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION ROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARK PLANNER DATE: APRIL 28, 1992 RE: DEERWOOD - 2ND ADDITION APPLICATIONIBACKGROUND An application has been submitted requesting the rezoning of 23.5 acres from Agricultural to Public Facilities and the Preliminary Platting of one lot for a Middle School. The parcel is located south of Deerwood Drive and west of Deerwood Elementary School. i The parcel is characterized by slopes of varying gradients. A majority of the site is in pasture. A portion of the parcel is in cultivated crops with approximately 2.3 acres of woods. FOR COMMISSION REVIEW The Commission will need to review and make recommendations regarding the following items: 1. What is the park dedication? 2. What is the trails dedication? 3. What is the impact to the woodland resource? ITEM #1 PARK DEDICATION Public facilities are not obligated in providing park dedication. ITEM #2 TRAILS DEDICATION Public facilities are subject to trails dedication. An existing trail lies within the southern boulevard of Deerwood Drive. This parcel did not participate in the cost of the trails. Therefore, staff recommends that this proposal be subject to a cash trails dedication. 3~• DEERWOOD 2ND ADDITION PAGE TWO ITEM #3 TREE PRESERVATION The 23.48 acre parcel contains approximately 2.3 acres of significant woodlands. This woodland area is located adjacent to Deerwood Drive around a small pond. A tree survey was provided by the School District. The survey indicates a predominance of oaks ranging in size from a 12" to 40" diameter. Elms, box elders and aspen are also found within this woodland. (See Figure #1) Unfortunately, the grading plan indicates no preservation of this existing woodland. The School District's need for athletic playing fields is proposed to consume this woodland area. The layout efficiencies for athletic fields promote the removal of the woodland as well as existing pond. The pond is proposed to be relocated within an area which can not support athletic play fields. Therefore, the School District's facility program priorities, along with limited acreage, rolling terrain and maximization of facility capacities does not provide for woodland preservation. FOR COMMISSION ACTION The Commission may consider the following recommendations: 1. The proposal be subject to a cash trails dedication. 32. fl10-08 DC- RWP V Off! YN. DEPT OF 1Rf~PffATION R.O.W.~PLAT 19-50 M 7 sA~~L s S 00°10'43" Wt, o -5008 - S 89•4 O► ° 289 N 89°45'29"' W N3' 9VIO% DEE 297.72 -.1~. All AGE do t - - - - a. Lw ft"R i ego, raw WOO. \W am SC ev \ ` + I + I r rr avlr r 1 O` WOO. I [lop ~t•p• t1 le Won., (I r) •o. Llama 'n j oM a • y 1~, ~ / y \ It I M prmwn $y: Drawing Title Dote: My Q~ Iwo m -1 ~Ct-~p ~,►,d , Flom ego. 4/a3/ ~ 33• ~ ~ MEMO TO: ADVISORY PARKS, RECREATION, AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: APRIL 30, 1992 SUBJECT. WATER QUALITY REQUIREMENTS FOR DEERWOOD SCHOOL SECOND ADDITION - INDEPENDENT SCHOOL DISTRICT #196 PROPOSAL This preliminary plat application consists of one lot of 23.5 acres for a middle school located along the south side of Deerwood Drive, west of Pilot Knob Road in the southeast 1/4 of Section 21. The land is now zoned for agriculture purposes, so a change in zoning to public facilities has been requested as well. FOR COMMISSION REVIEW The commission will need to review and make a recommendation regarding whether the developments should be subject to a ponding requirement and/or cash dedication requirement to meet water quality standards as set by the City and its water quality management plan. In addition, the project proposal would also involve filling a number of wetlands on site, so wetlands preservation/replacement to meet the standards of the Minnesota Wetlands Conservation Act is also an issue. WATER OUALITY ANALYSIS This development is located in the lower region drainage basin B about .5 miles up-drainage of Blackhawk Lake (Figure 1). After traveling through three small treatment basins, the runoff from this site will reach Blackhawk Lake, which is one of six Class I water bodies mi the City intended to have water quality sufficient to support direct contact recreation. To the extent possible, ponding should be used to meet water quality treatment obligations for this site because of its relatively close proximity to Blackhawk Lake. A treatment pond could be located in the northeast part of the existing elementary school grounds, just south of Deerwood Drive and' east of the entrance road. Because of site constraints, the maximum size pond that can be accommodated on-site is .45 acres at the normal water elevation. 35. About 14 acres of the proposed middle school site - including about 6 acres of impervious surface - will drain to the proposed treatment pond, given the current proposal for grades and storm sewer configuration. The remaining 9.5 acres of the middle school site, including about 2.3 acres of impervious surface, will drain off-site and would not be intercepted by the treatment pond. About 3.5 acres of non-pervious area from the existing elementary school grounds would drain naturally to the pond. With a slight modification in the existing storm sewer system, however, an additional 7 acres - including 2.2 acres of impervious area - could be drained to the proposed treatment pond from the elementary school to "make up" for off-site drainage from the proposed middle school site. In order to fully meet treatment requirements, the proposed treatment pond would need to be .57 acres in surface area and have a wet volume of 2.25 acre-feet at the normal water elevation. Because site constraints limit the size of the proposed on-site pond to .45 acres and approximately 1.6 acre-feet, a treatment deficiency exists. The City water quality policy allows this deficiency to be met by a cash dedication based on the difference between the required and proposed pond dimensions. Using the fee schedule outlined in the City Water Quality Management Plan, the cash dedication estimate is about $4,960. WETLAND ANALYSIS The developer has conducted a wetlands inventory of the site. The inventory indicates that three wetlands with a total acreage of .44 acres would be filled as a result of development. Inygntoa - The first wetland lies in the southwest corner of the parcel and is classed as a Type 2 wet meadow of .12 acres in area. The basin is vegetated with reed canary grass, willow, and aspen. The second wetland lies off the southwest comer of the existing Deerwood Elementary School. All but .06 acres of this basin lies to the south. The wetland is a Type 1 bottomland hardwood forest and the predominant vegetation is box elder and some mature black willow. The third wetland is located just south of Deerwood Drive in the north central area of the site. This basin . is a Type 2 wet meadow with a narrow fringe of Type 1 bottomland hardwood forest. Predominant vegetation is reed canary grass with scattered box elders and black willows along the fringe. Total size of the wetland is .26 acres. Rationale for Filling - The developer is proposing to fill all three wetlands totaling .44 surface acres. The two small wetlands would be filled by construction of the parking lot and driveway for the middle school building. The third would be filled to create athletic and ball fields to meet the physical education requirements of the school curriculum, according to the developer. The developer has indicated that impacts to this wetland are unavoidable if site requirements for physical education are to be met. The only other viable alternative is to purchase additional property adjacent to the existing site to meet these requirements. However, because the school district is under severe budget constraints, they are not able to purchase the additional property to meet those requirements so the only viable alternative has been to replace the wetlands on-site in an area not usable for athletic fields. Replacement Proposal - Total wetlands replacement requirements for the proposed development are .44 acres. Use of the treatment pond proposed for the northeast corner of the site is allowable for wetland replacement purposes under the Wetlands Conservation Act - Interim Program. To the extent that the surface area of the proposed treatment pond equals or exceeds .44 acres in surface area, the wetlands replacement requirement can be met by the treatment pond. STAFF RECOMMENDATION Staff recommends that the development meet its water quality treatment requirements by creating a treatment pond in the northeast comer of the proposed development and that the pond design follow National Urban Run-off Program. standards and be reviewed and approved by City staff prior to final plat. Any deficiency in meeting treatment standards should be met through a cash dedication. The proposed treatment pond could be used to fulfill the wetlands replacement requirement of .44 acres for the development. Rich Brasch Water Resources Coordinator RB/sb 28wp.advisory.119 r-. noo. I i D7 Y Y■ 14` M - v a ` CL • 1 A >•ml xn" C-h RN k" OLE ER / 4Q .X~yy T N CL A CL. VI SURqEY 1 f 3r0 GA Ems r DP- 2NL. ORE l , °n PUN I' IG?U'S kNi 100 ADD. io• HTSr7 TOWN CP` 12 1 Lai 11 - CENTRE ` ~I H ? 70 SECO b0 I~I~CT DCZDD. IST D-w l V/ z no CL. Vt K R Or7 BLDG CI O K i ' Tq 0 TOWN CE CP-6 36- o f±ai ( T TH 70 FIRST vC 00 N I rf T.C. CL VI 27,. - 17( JP-sus I Y ILL I~\ l SLAV PA CL. H i T'~ l ( y FI `SIC ACK n L.S.-1 JP=b3 I2" L - 'C e r JP-11 « K ~ i 24., CL. V ~wr ;A OP-1.2 I v JP- AAUe CL VII I JP-5 r BP CITY CL. V r-- BLACKH4ic• 27• j HALL ARK -~9"- PARK -2 - - , JP-10 .0 BF- CL. 4 ~1h I ? , • f~•. i 'j, ~1y11 V t L - SP-29.1 ACNE I^ CC Nv ___BP - 2EF w N a- e-o .4V11 11 CL. V11 48' 8-b c Op- sla r '`1 CL. It a~ -r st AL.. /r _ s ~L.VII ~JP-35- mOSFOR .ONNLft• VI°R ~II T H FIRST _ a PL, j^ a ~t<=VF" t LOCATION OF DEVELOPMENT C:~~ - URr>. 2 ' ~ JP- TRICK yip p =r `''3 • Erl • I C L . I EAGAN K 3 ?ARK - cra- -4 BP-4 i PIA ~ .a 1 xp'.7.2 N~ BP-25 ; CL-V11 BP- - CL.VII y C~ H. DoT B-s -8 p - S.1 Z. 1 . a G (I CL V L a LA 42' ( i S A K s T^~ 1 sSTER JP-51 C L. V11 VI ~'BP-5.3 JA LP-43 i KENS;NG- P-" - , C L. ~l I of o~ I = C LPL-. 11 I or--5.2 'rr T X ' ,4, THC BP- A IL J v r-,rn f % CL_ -5ct Q#socill *t L JRT R4 R DLIjw _ EASEMENT C'L -e BP -1 0• pp L. MHO Gam ~V , Bp r i t I ~2 K I 2 t, r $AfAR h J AT BP- ti 1 j, ~i C MA ?i'. E o i I F V CL. CL.VI / M' I^ OP -34 ooti. i FIGURE 2 W ; , ! lift W Z i N } fNlq ouam N ~ I G) . co o~.. P4 a . a S 7. % . ~ \ mar b Iwo • I N"` ` P. 39. MEMO TO: ADVISORY PARKS RECREATION AND NATURAL RESOURCES COMMISSION FROM: JOHN VONDELINDE, SUPERINTENDENT OF PARKS DATE: APRIL 29, 1992 SUBJECT: PROPOSED REGULATIONS TO CONTROL IMPACTS TO BOULEVARD AND TRAIL AREAS IN THE CTTY OF EAGAN BACKGROUND Last fall, several members of the city staff raised concerns over the impacts that certain developments were having on trails and boulevard areas within the City of Eagan. These concerns were primarily related to contractors using the boulevard area as an ingress/egress point to construction sites, and erosion and siltation onto trail surfaces. At the request of the City Administrator, a special committee was formed to further investigate these and other impacts to boulevard areas, along with proposed regulations for protecting the City's trails infrastructure. BOULEVARD IMPACTS After their first meeting, the Committee concluded that the impact and sources of problems occurring on boulevards and trails could be broadly categorized into four areas. These impacts and their sources are identified as follows: IMPACT SOURCE Driving and parld.ng on city trails Residents, utility companies, and City operations Utility construction/reconstruction Utility companies and subcontractors, and City operations Vehicular access across boulevard Residents, utility companies and subcontractors, construction contractors, and City operations 4/. April 29, 1992 Page Two Erosion/siltation Residents, utility companies and subcontractors, and construction contractors STATUS Following the analysis of the boulevard impacts and sources, the Committee set about to develop regulations and information strategies to address these problems. After several meetings, the committee proposed a series of changes to the city's regulatory instruments in the following three areas: • Modifications and additions to the City Ordinance • Development of a new public utility maintenance vehicle permit • Changes and additions to the city's right-of-way construction permit These proposed regulations have subsequently been reviewed and commented on by the City Attorney's office, and have been presented to the City's management team for their review. At the present time the proposed ordinance changes are being transmitted on an inter departmental basis for formal review and comment prior to ratification by the City Council. Concurrent with this interdepartmental review, the Parks and Recreation Department would also like to have the input of the Parks, Recreation and Natural Resources Advisory Commission relative to the proposed regulations. PROPOSED REGULATIONS A complete copy of the proposed ordinance changes and city regulations can be found on pages through of the Commission packet. To assist in the Commission's review the highlights of these changes and additions are summarized as follows: 1. Proposed ordinances changes. The following ordinance changes are being proposed: • A new definition of boulevard and street right-of-way • New provisions regulating the operation of public maintenance vehicles, construction vehicles and city vehicles within boulevard areas • Establishment of performance standards for vehicle operation on' boulevards April 29, 1992 Page Three • New requirements for clean-up of motor vehicles leaving construction sites; and clean-up of any material deposited within city right-of-way • New provisions for charging out street and trail clean-up costs associated with construction activities, and • Stronger requirements for erosion control measures adjacent to street right of way and trails within new developments 2. Public utility maintenance vehicle hermit. This would be a new permit issued to the public utility companies on an annual basis. The permit would basically allow the utilities to operate maintenance vehicles within public right- of-way areas, in accordance with the city's written regulations. This permit would not apply to construction activities within right-of-way areas which are currently covered under the existing right-of-way permit process. Some of the maintenance vehicle permit regulations would include: • Limitations of axle weight to 30001bs • Use of warning flashers at all times • Speed limitations (i.e. not in excess of five mph) • Provisions for undisturbed pedestrian circulation • Erection of barricades and warning cones • Restoration of sod and trailway surfaces resulting from right-of-way use 3. Right-of-way construction permit. The right-of-way permit is an already existing document which is primarily used in those cases where utility companies are either installing or reconstructing public utilities. In its old form the permit regulations primarily addressed safety, operational and restoration requirements within the paved street portion of the right-of-way. Following committee review, the following additions are being suggested for the right-of-way permit to incorporate the boulevard area: • New language adding right-of-way and boulevard areas to the permit,. in general. ~3 • . April 29, 1992 Page Four • Specific driving limitations within boulevard areas (similar to the annual maintenance permit) • Requirements for restoration of sod and trail surfaces damaged during construction • New provisions for barricading trails during construction This concludes the list of the primary recommended changes and additions to the City's regulatory instruments affecting right-of-way/boulevard areas. For Commission Action It would/ be appropriate for the Commission to consider approval of the proposed regulati as written, or to suggest approval with recommended modifications. JOHN K. VONDELINDE SUPERINTENDENT OF PARKS JKV/jrc ORDINANCE NO. 2ND SERIES AN ORDINANCE OF THE CITY OF EAGAN, MINNESOTA, AMENDING EAGAN CITY CODE CHAPTER ONE ENTITLED "GENERAL PROVISIONS AND DEFINITIONS" BY AMENDING SECTION 1.02, SUBD. 7 REGARDING DEFINITION OF STREET AND BY ADDING SECTION 1.02, SUBD. 7 REGARDING DEFINITION OF BOULEVARD AND BY ADOPTING BY REFERENCE EAGAN CITY CODE CHAPTER 1. The City Council of the.City of Eagan does ordain: Section 1. Eagan City Code Chapter One is hereby amended by changing Section 1.02, Subd. 7, to read as follows: Subd. 7. "Street" and "street right-of-way" means the entire area dedicated to public use, or contained in an easement or other conveyance or grant to the City, and shall include, but not be limited to, roadways, boulevards, sidewalks, trails, alleys and other public property between lateral property lines in which a roadway lies. Section 2. Eagan City Code Chapter One is hereby amended by adding Section 1.02, Subd. 7.1, to read as follows: Subd. 7.1. "Boulevard" means the area of a street right-of-way that lies between the property line nearest to any street to which such property abuts and the curbline of such street. Section 3. Eagan City Code Chapter 1 entitled "General Provisions and Definitions Applicable to the Entire City Code Including 'Penalty for Violation"'; is hereby adopted in its entirety by reference as though repeated verbatim. Section 4. Effective Date. This ordinance shall take effect upon its adoption and publication according to law. ATTEST: CITY OF EAGAN City Council By: E. J. VanOverbeke By: Thomas A. Egan Its: Clerk Its: Mayor Date Ordinance Adopted: Date Ordinance Published in the Legal Newspaper: ORDINANCE NO. 2ND SERIES AN. ORDINANCE OF THE CITY OF EAGAN, MINNESOTA, AMENDING EAGAN CITY CODE CHAPTER SEVEN ENTITLED "STREETS AND SIDEWALKS" BY ADDING SECTION 7.05, SUBD. 5.1 REGARDING PREVENTION OF TRACKING DIRT, CLAY OR SOIL ONTO STREETS; BY AMENDING SECTION 7.11 REGARDING MOTORIZED VEHICLES PROHIBITED ON SIDEWALKS; BY ADDING SECTION 7.12 REGARDING THE REGULATION OF VEHICLES REQUIRING ACCESS TO CITY RIGHT-OF-WAY BOULEVARDS; AND BY ADOPTING BY REFERENCE EAGAN CITY CODE CHAPTER 1 AND SECTION 7.99. The City Council of the City of Eagan does ordain: Section 1. Eagan City Code Chapter Seven is hereby amended by. changing 7.11, to read as follows: SEC. 7.11. Motorized Vehicles Prohibited On Boulevards And Sidewalks. Except as provided in Sections 7.12 and 11.10, subd. 8_, it is unlawful for any person to drive operate or park a motor vehicle on any boulevard, public sidewalk or other public property designated for use as a pedestrian walkway or bicycle trail, except when crossing the same for ingress and egress via a driveway to private property lying on the other side thereof. Section 2. Eagan City Code Chapter Seven is hereby amended by adding 7.12, to read as follows: SEC 7.12. Certain Motorized Vehicles Permitted On Boulevards - Regulation. A. Public Utility Maintenance Vehicles. Notwithstanding the provisions of Section 7.11 herein. any person who is an employee. or agent of a public utility company or cooperative and within the course and scope of such employment or agency. needs direct access to an area within a boulevard for the exclusive purpose of maintaining any public utilities excluding any activity that requires a public improvement to be removed, replaced or modified, may drive, operate or park a motor vehicle on such boulevard within the course and scope of such activity upon the City's issuance of a permit to the public utility company or cooperative that employs such person. For purposes of this. Paragraph motor vehicle shall mean any motor vehicle with a gross weight of less than 3.000 pounds per axle. B. Construction Vehicles Notwithstanding the provisions of Section 7.11 herein any person requiring temporary access upon any boulevard or across any boulevard to such person's abutting private property, for construction or other similar purposes may drive o erate or park, or permit anotherto drive. operate or park any construction vehicle construction ecruipment or any other motor vehicle upon or across any boulevard or public sidewalk within the course and scope of such construction or other similar activity upon the issuance of a written Permit by the City. C. City Vehicles Notwithstanding the provisions of Section 7.11 herein any city employee acting within the course and sco a of his/her employment or a cont acto acting within the course and scope of a contract with the City may drive operate o park motor vehicle on a boulevard without a permit issued by he City but'subject to the provisions of Paragraph D of this Section. D. Performance Standards All persons permitted to drive operate and park a motor vehicle as in accordance with this Section shall be subject to those standards and regulations set forth in any permit issued pursuant to this Section. Section 3. Eagan City Code Chapter Seven shall be amended by adding Section 7.05, Subd. 5.1, to read as follows: Subd 5 1 Tracking Dirt Clay or Soil onto Streets. A Any person who has a motor vehicle upon any _construction site or area shall remove any dirt, clay, soil or other similar substance from such motor vehicle before driving upon any street right-of-way in order that such dirt clay or soil shall not be deposited upon the street. It shall be the responsibility of the construction project's developer, genera contractor, or both to immediately cleanup any siltation, dirt, clay or soil deposited upon any street right-of-way as a result of motor vehicle traffic from such construction site or area. B All direct or indirect costs incurred by the City for the removal of any siltation dirt clay or soil deposited upon any street as a result of motor vehicle traffic from a construction site not so removed as rep ired in Paragraph A of this Subdivision, ha be charged to the general contractor or developer or both. 47. e Section 4. Eagan City Code Chapter 1 entitled "General Provisions and Definitions Applicable to the Entire City Code Including 'Penalty for Violation""; and Section 7.99, entitled "Violation a Misdemeanor" are hereby adopted in their entirety by reference as though repeated verbatim. Section 5. Effective Date. This ordinance shall take effect upon its adoption and publication according to law. ATTEST: CITY OF EAGAN City Council By: E. J. VanOverbeke By: Thomas A. Egan Its: Clerk Its:_Mayor Date Ordinance Adopted: Date Ordinance Published in the Legal Newspaper: 4~- • f ORDINANCE NO. 2ND SERIES AN ORDINANCE OF THE CITY OF EAGAN, MINNESOTA, AMENDING EAGAN CITY CODE CHAPTER NINE ENTITLED "PARKING REGULATIONS" BY AMENDING SECTION 9.02 REGARDING EXCEPTION TO GENERAL PARKING PROHIBITIONS; AND BY ADOPTING BY REFERENCE EAGAN CITY CODE CHAPTER 1 AND SECTION 9.99. The City Council of the City of Eagan does ordain: Section 1. Eagan City Code Chapter Nine is hereby amended by changing Section 9.02, to read as follows: Sec. 9.02. General Parking Prohibitions. Except as provided in Sections 7.12 and 11. 10, Subd. 8. wit is unlawful for any person to stop, stand or park.a vehicle except when necessary to avoid conflict with other traffic or in compliance with the specific directions of a police officer or traffic control device in any of the following places: (1) on a sidewalk or trailway; (2) in front of a public or private driveway or trailway; (3) within an intersection; (4) within ten feet of a fire hydrant or mail box; (5) on a crosswalk; (6) within twenty feet of a crosswalk at any intersection; (7) in a sign-posted fire lane; (8) within thirty feet upon the approach to any flashing beacon, stop sign or traffic control signal located at the side of a roadway; (9) within fifty feet of the nearest rail of a railroad crossing; (10) within twenty feet of the driveway entrance to any fire station and on the side of a street opposite the entrance to any fire station within seventy-five feet of said entrance when properly sign-posted; (11) alongside or opposite any street excavation or obstruction when such stopping, standing or parking would obstruct traffic; (12) on the roadway side of any vehicle stopped or parked at the edge or curb of a street; (14) at any place where official signs prohibit or restrict stopping, parking or both; (15) in any alley, except for loading or unloading and then only so long as reasonably necessary for such loading and unloading to or from adjacent premises; or (16) on any boulevard which as been curbed. Section 2. Eagan City Code Chapter 1 entitled "General Provisions and Definitions Applicable to the Entire City Code Including 'Penalty for Violation' Section 9.99 entitled "Violation a Misdemeanor," are hereby adopted in their entirety by reference as though repeated verbatim. 44. Section 3. Effective Date. This ordinance shall take effect upon its adoption and publication according to law. ATTEST: CITY OF EAGAN City Council By: E. J. VanOverbeke By: Thomas A. Egan Its: Clerk Its: Mayor Date Ordinance Adopted: Date Ordinance Published in the Legal Newspaper: v ORDINANCE NO. 2ND SERIES AN ORDINANCE OF THE CITY OF EAGAN, MINNESOTA, AMENDING EAGAN CITY CODE CHAPTER ELEVEN ENTITLED "LAND USE REGULATIONS" BY AMENDING SECTION 11.10, SUBD.8 REGARDING INSTALLATION OF PUBLIC UTILITY SERVICES; AND BY ADOPTING BY REFERENCE EAGAN CITY CODE CHAPTER 1 AND SECTION 11.99. The City Council of the City of Eagan does ordain: Section 1. Eagan City Code Chapter Eleven is hereby amended by changing 11.10, Subd. 8 to read as follows: Subd. 8. Public Utility Service. It is unlawful to install, construct, erect, alter, revise, reconstruct or move any pipeline, underground telephone line, underground electric transmission lines and overhead electric transmission line including structures related thereto or any other public utility device or related structure, without first obtaining -the appre*& a written permit from the Wit- City. In issuing said -3i r- = . permit, the -ee+:.ne-2 , Citv shall find that: A. The proposed location of the essential service shall not unreasonably interfere with future land use of the City. B. The depth of any buried essential services shall be at a depth that will not cause future problems with roads, streets, utilities or buildings. C. The width of any linear easements or rights-of-way shall not be such that it will unreasonably interfere with future land use. All persons obtaining a written permit pursuant to this Subdivision shall be subject to those standards and recmlations set forth in and as a condition of the permit issued pursuant to this Subdivision Section 2. Eagan City Code Chapter 1 entitled "General Provisions and Definitions Applicable to the Entire City Code Including 'Penalty for Violation"' Section 11.99, entitled "Violation a Misdemeanor," are hereby adopted in their entirety by reference as though repeated verbatim. SZ Section 3. Effective Date. This ordinance shall take effect upon its adoption.and publication according to law. ATTEST: CITY OF EAGAN City Council By: E. J. VanOverbeke By: Thomas A. Egan Its: Clerk Its: Mayor Date Ordinance Adopted: Date Ordinance Published in the Legal Newspaper: Date of Advisory Planning Commission Hearing: ORDINANCE NO. 2ND SERIES AN ORDINANCE OF THE CITY OF EAGAN, MINNESOTA, AMENDING EAGAN CITY CODE CHAPTER THIRTEEN ENTITLED "SUBDIVISION REGULATIONS",BY AMENDING SECTION 13.30, SUBD. 2(C)(3)(e) REGARDING SPECIAL MEASURES TO PREVENT EROSION AND SILITATION ONTO STREET RIGHT-OF-WAYS; AND BY AMENDING SECTION 13.30 SUBD. 13 REGARDING ENVIRONMENTAL PROTECTION; AND BY ADOPTING BY REFERENCE EAGAN CITY CODE CHAPTER 1 AND SECTION 13.99. The City Council of the City of Eagan does ordain: Section 1. Eagan City Code Chapter Thirteen is amended by changing Section 13.30, Subd. 2(C)(3)(e), to read as follows: (e) Identification of any chvsical characteristics of the site constituting a susceptibility to erosion and siltation to any adjacent street right-of-way: identification of the special measures if any. to be used to prevent any erosion to and siltation onto an adjacent street riaht-of-way; and identification of the location of erosion/sediment control structures, and indication of type such as_ --hay bales, silt fence, sedimentation basin7-e4+-}. Section 2. Eagan City Code Chapter Thirteen is amended by changing Section 13.30, Subd. 13, to read as follows: Subd. 13. Environmental Protection. The City will enforce environmental protection and erosion control in the development of subdivisions within the City. This includes off development sites as well as wetlands areas. -A Handb-"'' err EnyiEefinental PEe eetlea is available at G; t y Hall Section 3. Eagan City Code Chapter 1 entitled "General Provisions and Definitions Applicable to the Entire City Code Including 'Penalty for. Violation"' and Section 13.99, entitled "Violation a Misdemeanor" are hereby adopted in their entirety by reference as though repeated verbatim. S~ • i r Section 4. Effective Date. This ordinance shall take effect upon its adoption and publication according to law. ATTEST: CITY OF EAGAN City Council By: E. J. VanOverbeke By: Thomas A. Egan Its: Clerk Its: Mayor Date Ordinance Adopted: Date Ordinance Published in the Legal Newspaper: Date of Advisory Planning Commission Hearing: CITY OF EAGAN Public Utility Maintenance Vehicle Permit For Access To City Boulevards. 1. Name of Applicant for Public Utility Company: (Please Print) 2. Public Utility Company: 3. Address: 4. Contact Person: 5. Business Telephone: The undersigned herewith accepts the terms and conditions of the permit issued by the City of Eagan as herein contained and hereby agrees to fully comply therewith to the satisfaction of the Eagan City Council. Signed: Title: Date: FOR CITY USE ONLY AUTHORIZATION OF PERMIT FINANCIAL SECURITY: AMOUNT: TYPE: (Cash, bond, LOC, etc.) Fee: $ Receipt No. Permit No. In consideration of agreement to comply in all respects with the regulations of the City of Eagan covering such operations, and pursuant to authorization duly given by said Eagan City Council, permission is hereby granted for the work to be done as described in the above application; said work to be done in accordance with special provisions as hereby stated: APPROVED BY: DEPT. OF PUBLIC WORKS By: /Date ALL LEGAL REQUIREMENTS SHOWN ON REVERSE SIDE AND ALL "SPECIAL PROVISIONS" TO BE COMPLIED WITH! ss• REGULATIONS GOVERNING THE OPERATION OF MAINTENANCE VEHICLES WITHIN CITY BOULEVARDS 1. Vehicles in excess of 3,000 pounds weight per axle shall not operate within street right-of-way area (boulevards) without the express authorization of the City of Eagan, Engineering Department. 2. Driving or parking on City trails or sidewalks shall only be permitted for those operations requiring direct access to the boulevard area. 3. Vehicles operating or parked within the right-of-way area shall utilize their warning flashers at all times. 4. Vehicles driving on trails or sidewalks shall not operate in excess of 5 miles per hour. Vehicles shall operate at slower speeds when weather conditions, trail conditions, poor visibility, obstructed sightlines or other conditions require special precautions to ensure the safety of trail users and the general public. 5. Driving shall not be permitted within those boulevard areas where damage to turf, trailways or other infrastructure may occur. 6. Vehicles shall not be parked on trails or sidewalks in such a manner as to unnecessarily impede the safe and efficient use of trailways by the general public. 7. Barricades or warning cones shall be erected in a manner which will provide suitable visibility to trail users of any vehicles parked within the boulevard area. Flashing amber warning lights shall be required during non-daylight hours. 8. Vehicles or equipment traversing roads or trailway surfaces shall not utilize studded or chained tires, caterpillar traction, or any other form of traction which will result in damage to the surface. 9. Wherever damage to trails surfaces, sidewalks or other public improvements' occurs as a result of the operation of vehicles within the boulevard area the responsible party shall take immediate action to repair all affected items to their original construction specifications. 10. Wherever topsoil or sod are disturbed they shall be replaced and maintained satisfactorily until the turf is established. 11. All trailways, sidewalks, or other affected right-of-way areas shall be cleaned after maintenance operations are completed and left in a neat and presentable condition. CITY OF EAGAN Page 1 of 4 PERMIT TO WORK WITHIN CITY PROPERTY/RIGHT-OF-WAY/EASEMENTS 1. Location 2. Nature of Work Indicate below items to be affected and include a sketch or plan of work to be done. Curb & Gutter Street Surface Trail/Sidewalk Trees: Pond/Wetlands Public Traffic Control Devices/Signs Private Drainage Utilities Structures/Buildings Other 4. Method of Installation or Construction 5. Work to start on or after: and shall be completed by: unless an extension granted to: by: DATE STAFF/DATE 6. Will detouring of traffic be necessary? If necessary to detour traffic, describe suggested route: DETOURS: The Director of Public Works shall be notified in writing at least 72 hours in advance of any detour being established, changed or discontinued. NAME OF APPLICANT PHONE PLEASE PRINT ADDRESS CITY STATE ZIP "Dr OF PARTY OR ORGANIZATION PERFORMING WORK CONTACT PERSON: EMERGENCY (24 HR.) PHONE ADDRESS DAY PHONE CITY STATE ZIP The undersigned herewith accepts the terms and conditions of this permit by the City of Eagan as herein contained and agree to fully comply therewith to the satisfaction of the Eagan City Council. Signed: Title: DATE: FOR CITY USE ONLY AUTHORIZATION OF PERMIT FINANCIAL SECURITY: AMOUNT: TYPE: (Cash,bond,LOC,ete.) Fee: S Receipt No. Permit No. In consideration of agreement to comply in all respects vith the regulations of the City of Eagan covering such operations, and pursuant to authorization duly given by said Eagan City Council; permission is hereby granted for the work to be done as described in the above application, said work to be done in accordance vith special provisions as hereby stated: APPROVED BY: DEPT. OF PUBLIC WORKS BY: /DATE ALL LEGAL REQUIREMENTS SHOWN ON REVERSE SIDE AND ON ALL "SPECIAL PROVISIONS" TO BE COMPLIED WITH! THE DATE WHEN WORK IS COMPLETED MUST BE REPORTED TO THE EAGAN CITY ENGINEER. Permit No. Page 3 of 4 b. The applicant shall furnish evidence of public liability insurance of not less • than $100,000/300,000 and property damage of not less than $25,000 issued by an insurance company authorized to do_business in the State of Minnesota on which the City is.named as an additional insured party. C. Except for the negligent acts of the City, its agents and its employees, the permittee shall assume all liability for, and save the City, its agents and its employees, harmless and defend same at its sole cost and expense from any and all claims for damages, actions or causes of action arising out of the work to be done herein and the continuing uses by the permittee, including but not limited to the placing, constructing, and reconstructing, maintaining, protecting and use of said facility under this application and permit for construction. 5. Existing Facilities--The utility facility and installations shall not interfere with any existing utility facility on the City's right-of-way or easements. It is the responsibility of the applicant to call for necessary locations of existing utilities. (Gopher One 454-0002) 6. Private Property--The work permit or permit for construction as issued does not in any way imply an easement on private property. 7. Quality of Work--Finished surface, base and sub-base of road or trailway upon completion of work shall be at least equal to or better than specifications of originally provided road or trailway in accordance with City Standard Specifications. Surface shall be finished within 48 hours upon completion of backfill. 8. Cutting Trees--The permission herein granted does not confer upon the permittee the right to cut, remove or destroy trees or shrubbery within the legal limits of the right-of-way, easements that are not specifically identified on the plan attached to this permit or relieve permittee from obtaining any consent otherwise required from t owner of the property adjacent thereto. 9. Drainage--All waterways and lines of drainage shall remain operative. 10. Pole Anchors--No pole anchors, anchors, braces or other construction shall be permitted within right-of-way or easement. 11. Driving Limitations. a. Driving or parking on City trails or sidewalks shall only be permitted for those operations requiring direct access to the boulevard area. b. Vehicles operating or parked within the right-of-way area shall utilize their warning flashers at all times. C. Vehicles driving on trails or sidewalks shall not operate in excess of 5 miles per hour. Vehicles shall operate at alower speeds when weather conditions, trail conditions, poor visibility, obstructed sighlines or other conditions require special precautions to ensure the safety of trail users and the general public. d. Driving shall not be permitted within those boulevard areas where damage to turf trailways or other infrastructure may occur. e. Vehicles shall not be parked on trails or sidewalks in such a manner as to unnecessarily impede. the safe and efficient use of trailways by the gene public. Permit No. Page 2 of 4 PERTINENT REGULATIONS ' Safety Traffic shall be allowed to pass and to be protected at all times. If it is not possible to allow traffic to pass, a suitable detour must be provided and plans submitted to the Director of Public Works 72 hours in advance. 2. Barricades shall be erected in a manner which will provide suitable visibility in all directions. All barricades shall be in good condition, and all signs shall be of such size and legibility to provide adequate warning to oncoming traffic. At least two 7" flashing amber lights shall be mounted on each end barricade with one on an advance warning sign. 3. Excavations must be shored or sheeted when necessary to prevent under-mining of roadway, trailways, utilities, or for safety reasons. 4. Guys or stays shall not be attached to trees on right-of-way or private property without written permission. 5. Flagmen shall be furnished by the party or organization performing the work whenever the work being done creates a hazard either to the traffic using said road or the personnel engaged in the construction, or when directed to do so by the City. OPERATIONS 1. Permit on Job--Permits or copies shall be kept on the site of the work while it is in progress in the custody of the individual in charge, and shall be exhibited upon request made by any City official. Provisions and Specifications--These general provisions, specifications and Std. Plate P-1 shall be considered as forming an integral part of each and every permit issued for operations within Eagan. The work authorized by this permit shall be done at such time and in such manner as shall be consistent with -the safety of the public and shall conform to all requirements and standards of the City. If at any time it shall be found by the City that the work is not being or has not been.properly performed, the permittee, upon being notified by the City, shall immediately take the necessary steps, at his own expense, to place the work in condition to conform to said requirements or standards. 3. Execution--The permittee shall use diligence in the execution of.the work authorized under this permit in order not to endanger or unnecessarily obstruct travel along any road or trailway. Operations shall be so conducted at all times as to permit safe and reasonable free travel over the roads and trailways within the limits of the work herein prescribed. All safety measures for the free movement. of traffic shall be provided by the permittee at his own cost. 4. Conformity to Laws--The installation shall be made in conformity with all applicable laws, regulations. and codes covering said installations. All installations shall be made in conformity with regulations of governmental agencies for the protection of the public. a. The applicant shall furnish a bond or financial guarantee in the amount to be determined by the City which is required to ensure adequate & timely completion of-repair. This bond or financial guarantee shall remain in effect for 2 years subsequent to completion of street repair to protect the City from defects in material, workmanship or non-compliance with City.Standards or specifications. Permit No. Page 4 of 4 12. Vehicles or equipment traversing roads or trailway surfaces shall not utilize studded or chained tires, caterpillar traction, or any other form of traction which will result in damage to the surface. 13. Clean-Up--Street, trailways and affected right-of-way shall be scraped clean at the e of each work day and swept clean after construction is completed and left in a neat and presentable condition. 14. Trees and Vegetation-Burning or disking operations and/or the use of chemicals to control or destroy trees, brush and other vegetation is prohibited without prior approval from the City. 15. Replacement of Sod--Wherever top-soil and sod are disturbed, they shall be replaced and maintained satisfactorily until the turf is established. The undersigned hereby declares he/she has read and will comply with all the PERTINENT REGULATIONS as stated above and relevant City Ordinances. DATE: SIGNED: Rev. 2/92 • rant a ur a PROPERTY LINE i 1 3 4 SAME AS REMOVED (3" MINIMUM) SAME AS REMOVED • (6" MINIMUM). 2 5 I ( - TRAILWAY Curb and Gutter shall be removed only after saw cutting at joints and replaced according to specifications or Standard Plate. 2. Bituminous pavement area removed shall be saw cut prior to patching. 3. Boulevard sod removed shall be replaced with minimum 4" of topsoil and cultured sod. 4. 2341 bituminous wear course shall be paved between May lst and November 15th for permanent patch. Temporary cold mix patch should be used November 16th to April 20th (or as permitted by weather)-. 5. Class 5, 100% crushed aggregate base. 6. Barricades and warning flashers are to be provided as per MnDOT standards. 7. Bituminous trailway closure requires Type II MnDOT barricades with flashers. 8. Backf ill shall be thoroughly compacted by the "Specified Density Method" of compaction. All suitable backfill material placed below a depth of five (5) feet below the final pavement surface shall be placed in maximum lifts of twelve (12) to eighteen (18) inches and compacted to a minimum ninety-five (95%) percent of ASTM Specification D698- 64T (Standard Proctor Density), method "A". All suitable backfill material placed within five (5) feet below the final pavement surface shall be placed in lifts not to exceed twelve (12) inches aTTd compacted to a minimum of one-hundred (100%) percent of" the above ASTM Specification. %.Ity of eagan STREET AND BITUMINOUS TRAILWAY approved: standard plate PUBLIC $ . WORKS EXCAVATION /PATCH DETAIL 2/92 P_1 - PARTMENJ MEMO TO: ADVISORY PARKS RECREATION AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: APRIL 30, 1992 SUBJECT: SUMMARY OF PROPOSED SCHWANZ LAKE WATER QUALITY IMPROVEMENT PLAN I. Introduction As Commission members are aware, the- City is finishing a plan to improve water quality in Schwanz Lake as part of a project funded through the Cleanwater Partnership Program administered by the Minnesota Pollution Control agency. The purpose of this memo is to brief the Commission on the results of the assessment of existing and future water quality in Schwan Lake conducted as part of this project. In addition, staff would like to discuss with the Commission selected treatment options under consideration to improve water quality in Schwan Lake, including several that would affect land uses on park property. R. Background In 1989, the City applied for a grant through the Minnesota Pollution Control Agency's (PCA) Cleanwater Partnership Program to develop a strategy to combat water quality degradation in Schwan Lake located in Trapp Farm Park. The intent of the study was: 1. To diagnose the causes of existing poor water quality in the lake and to project. future water quality conditions. 2. To identify and evaluate alternatives for improving water quality. 3. To establish water quality goals for the lake that are both achievable and compatible with intended uses. 4. To select the most cost-effective options for implementation. The total project cost for the study was estimated at $74,000, half of which is being paid for by the Cleanwater Partnership Grant from PCA. The majority of the remaining study costs are being covered through a combination of in-kind services performed by City staff and City cash contributions. b3- The major work elements for the project have included the following: 1. In-lake water quality sampling and precipitation monitoring (October 1990 through September 1991). 2. Runoff water quality sampling (March 1991 through September 1991). 3. Data analysis (October 1991 through December 1991). 4. Computer modeling (January 1992 through March 1992). 5. Feasibility assessment of alternatives (January 1992 through April 1992). 6. Selection of remedial alternatives and completion of implementation plan (May 1992). III. Summary of Findings The following is a summary of major findings for the project: 1. As with most lakes in this region, availability of the aquatic nutrient phosphorous appears to be the factor which most influences algae production in the lake during summer season. Algae blooms are the primary cause of low water clarity in the lake. This conclusion is reached based on ratios of the availability of phosphorus to other nutrients whose abundance can be limiting, as well as the species composition of algae especially during late summer. 2. In-lake sampling showed an average total phosphorus concentration of 81 micrograms per liter for Schwanz Lake during the June through September summer season. The original goal for the lake was to limit average total phosphorus concentrations for this period to no more than 33 micrograms per liter. The maximum allowable total phosphorus concentration necessary to fully support swimming is 48 micrograms per liter or less. Phosphorus concentrations between 49 and 68 micrograms per liter are generally adequate to support direct body contact recreation like swimming for at least a portion of the year during the summer season. Computer modeling to attempt to predict the effectiveness of various treatment alternatives in reducing lake phosphorus concentrations indicates that a realistic goal for in-lake phos hp onus concentrations is 55 micrograms per liter under future watershed development conditions. 3. The drainage area of Schwanz Lake is dictated by the configuration of the storm sewer system which links it with other ponds and lakes. The current drainage area is approximately 360 acres, but future expansion of the storm sewer system to the south and east will increase the drainage basin to over 900 acres, 300 acres of which will lie in Inver Grove Heights. 4. The average measured concentration of total phosphorus in direct runoff from residential areas was approximately 740 microgram per liter. over 1.5 times the concentrations assumed for runoff from residential areas in past modeling efforts by the City. This value lies at the upper end of the range of values in the technical literature. 5. A higher than normal proportion of the phosphorus -especially in runoff generated by snowmelt - was in a dissolved form. Dissolved forms of phosphorus are of particular concern because these forms are available for uptake by aquatic plants as soon as they enter the lake. 6. Monitoring and computer modeling indicate that between 65% and 80% of the total amount of phosphorus now entering the lake is from the 110 acres (30% of total drainage) that drains directly to Schwartz Lake. The remainder of the runoff that eventually reaches Schwanz Lake drains first to lakes and ponds higher in the system which then discharge to Schwan Lake. Drainage of runoff to upstream ponds first allows pollutants to settle out before the runoff reaches Schwan Lake. 7. Modeling indicates that almost 45% of the total amount of phosphorus entering the lake under future, fully developed conditions (drainage basin area of 900 acres) will still be from the direct drainage around the lake. Under future development conditions, direct drainage to the lake will be just over 10% of the total drainage area. N. Implications of Findings for Lake/Watershed Management These findings are important in determining how we manage the lake for several reasons. First, it is clear that we need to revise our water Quality goals for the lake.. Modeling and experience show that it is extremely difficult (and probably financially prohibitive) to maintain water quality sufficient to meet the current goal for lake phosphorus concentration (33 ug/1) given the large size of the drainage basin relative to the lake volume and the high intensity of drainage basin land use. An in-lake phosphorus concentration of 55 micrograms per liter will be sufficient to partially support swimming and substantially improve conditions for game fish survival in the future. Water clarity associated with this level of total phosphorus concentration would be about 25% better than that measured during the 1991 summer season. Second. efforts to control phosphorus inputs to the lake need to focus primarily on the direct drainage area (i.e. that area that drains directly from neighborhood streets to Schwan Lake without first entering upstream ponds). This effort is particularly important in reducing phosphorus inputs during the near term. The direct drainage delivers more phosphorus per unit area to the lake than any other area of the drainage basin under both existing and future conditions. It makes sense to focus non-structural control efforts (public education, street sweeping, etc.) as well as selected structural efforts in this part of the basin, though the rest of the basin cannot be ignored. V. Treatment Alternatives Under Consideration Modeling has indicated that a reduction in phosphorus entering the lake of at least 251bs. per year will be needed to achieve the proposed revision to the water quality goals. As part of the feasibility study for the project, staff have compiled a list of treatment alternatives that can help reduce the total amount of phosphorus entering Schwanz Lake. Based on field experience and use of the model, we have estimated the reduction of phosphorus associated with each alternative and combined this information with estimated costs to help provide guidelines on which alternatives are most cost-effective in reducing the amount of phosphorus entering the lake. Table I is a summary of the strongest candidates for selection in the final implementation plan, along with preliminary figures on their cost effectiveness. VI. Description of Main Treatment Alternatives Following is a brief description of the treatment alternatives identified in Table I. 1. Non-structural Alternatives a. Fertilizer and Yard Waste Management This strategy would emphasize the education of residents, especially within the direct drainage basin, on proper fertilization and yard waste management practices. The intent of this education effort is to reduce at the source the amount of phosphorus-containing debris reaching the storm sewer system that feeds Schwanz Lake. Activities would include lawn soil nutrient testing, promoting the use of (and possibly distributing) no-phosphorus or low-phosphorus fertilizer, instruction on proper fertilizer application and control of lawn litter, and other activities. b. Street Sweeping. Sweeping could be carried out every month between March and October for streets in the direct drainage basin of Schwartz Lake. The purpose of intensive sweeping would be to remove phosphorus-containing debris from streets before it reaches the storm sewer system. To the extent that the public education activities associated with fertilizer and yard waste management are successful, street sweeping activities could be reduced. 2. Structural Alternatives a. Enlarge Pond LP-32.1. LP-32.1 lies north and a little west of Schwan Lake (see A on Map 1). This lowland receives runoff from almost 22 acres of single family residential development, but is almost completely filled in by vegetation and other debris. Excavation will increase the ability of the pond to remove nutrients from runoff before it is discharged to Schwan Lake. b. Construct Park Pond. This proposal involves construction of a treatment pond between .05 and .1 acres in surface area near B on Map 2. The pond would be located between the north shore of Schwan Lake and the north boundary of Trapp Farm Park just east of the sand volleyball courts. The pond would receive and treat runoff from about 7 acres of direct drainage area to Schwanz Lake. C. Construct East Power Line Basin. This proposal would involve construction of a treatment pond between .18 and .23 acres in surface area in a low area on the east side of the lake near the power line and on the north side of the Highline Trail (location C on Map 2). The pond would catch and partially treat runoff from 34 acres of direct drainage area to Schwan Lake. This alternative is somewhat costly because a realignment of storm sewer system draining a single family residential area to the north and east of the lake would be necessary to bring runoff to the pond. d. Create Lift Station Bay. This alternative would involve isolating a small bay at the southeastern end of Schwan Lake by creating a dike near D, on Map 2. In addition, the southern inlet which carries relatively good quality water from Hay Lake, but enters immediately adjacent to the lift station which drains Schwanz Lake, would be extended to release that water into the main pool of Schwan Lake away from the lift station. As part of this alternative, a storm sewer inlet which now drains about 2.7 acres of single family residential development directly to Schwan Lake would be intercepted and piped under the bike path along the southeast shore of the lake to the lift station bay. e. Modification of Aerator The City already has access to a portable aerator that was intended to b~- oxygenate Schwanz Lake during the winter to improve game fish survival. With this alternative, permanent structural features would be put in place near the existing canoe landing (E on Map 2) to allow year round injection of oxygenated waters into deeper parts of the lake where monitoring shows low oxygen conditions developing. Low oxygen conditions can result in chemical changes in bottom sediments that cause release of phosphorus, a process known as "internal loading". Oxygenation of the water overlying the sediments can help prevent sediment release of phosphorus. This technique is still somewhat experimental, however. VII. Concluding Remarks The intent of this briefing was to update the commission on the progress of the Schwan Lake Cleanwater Partnership Project. The scope of work adopted for the project in May of 1990 calls for completion of the project report and final selection of treatment alternatives in May, 1992. The document will then be forwarded to the Pollution Control Agency for their review and comment. The City's intent is to then apply for another Cleanwater Partnership Grant during the fall of 1992 which, if awarded, would pay for up to 50% of the cost of implementing the chosen treatment alternatives. Construction of the structural alternatives would likely be initiated in early 1994 if the second Cleanwater Partnership Program grant application is successful. VIII. For Commission Action The Commission is asked to review and discuss alternative treatment strategies for Schwan Lake. The purpose of the discussion will be to help lay the ground work for a final decision by the City regarding recommended alternatives to be included in the final project report to the Minnesota Pollution Control Agency. I'll be happy to answer any questions that Commission members have regarding the Schwanz Lake project at the Commission Meeting on May 7th. Thanks. 1 Rich Brasch Water Resources Coordinator RB/sb Table 1 SCHWANZ LAKE TREATMENT ALTERNATIVES - PRELIMINARY - Estimated Phosphorus Cost-Effectiveness Reduction ($/lb reduction in P/yr Alternative (lbs/yr) Initial Cost Long-term Costs over 20 yrs) Non-Structural Fertilizer and Yard Waste Mgmt. 1.8 lbs./yr. $13,600 $4,560/yr. Street Sweeping 6 lbs/yr $ 4,200 $4,200/yr. $700 r~ ctural Enlarge Pond LP-32.1 9 lbs/yr $ 7,000 $ 500/yr $ 95 Construct Park 3.5-7 lbs/yr $12,100 $ 500/yr $159-$306 Basin Construct East 8.5-11 lbs/yr $88,100 $ 500/yr $455-$570 Powerline Basin Create lift station bay 15 lbs/yr $45,200 $ 500/yr $185 Modify aerator 5 lbs/yr $12,230 $1,000/yr $320 Reduction Goal is > 25 lbs/yr 28wp:schwanzl.119 MAP ] I i I t 1 i ! 1 , 1 l i, l l ; 1 1 ; t l l „ 1 1 1, 1 1, 1 1 1 1 1 1 1 t I I 1 y~-..a 1 I 1,, 1, 1 ! 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".'S S$~s , 1L+.t .-iv',-!s krt~!'~ ~,I`LC,~.. .t lr _ ) r•I t}' ~~J+. p x 'S•rJ ••S a ' f.. 3~: ~i 'Y~ ~f: r %5..~..'~t4b s +fv$~rax'~i t . .s. S2 .fy` t ` -'~~4 ty f "a: , " y.: 0 4 i.C4!• t- oY'Y,~~...~' f .ti c3,'fz}.fs~ '~l+t 4 ' ~ aS vh►'..4~tl 4 ,1A ? ~.G X : "lid ~ Z4~~:•.. ~~aYJv~YX`r.t l` rJ * s15y4i;Ty. . r OUTLET STORMWATER INLET EXCEPT MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARK PLANNER DATE: APRIL 28, 1992 RE: HAWTHORNE WOODS ADDITION - TREE PRESERVATION UPDATE The Commission reviewed the preliminary plat for Hawthorne Woods Addition at the February 1992 meeting. The developer proposed a pad grading approach, but intended to evaluate lot specific tree preservation once road center lines where staked. Staff, along with the developer's landscape architect and civil engineer walked the site on April 10th. It was determined that of the 16 - Phase 1 wooded lots, up to 7 wooded lots will be left ungraded, utilizing a custom development approach. This effort will provide significant preservation of mature oak trees, aspen and birch. In conclusion, the developers sensitive site planning and lot specific tree preservation minimizes the unnecessary loss of the woodland resource within this residential subdivision. This memorandum is informational requiring no action by the Commission. SS/bls 93• ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION DEPARTMENT HAPPENINGS APRIL 30, 1992 1.*« The Tiny Tots classes are going on a field trip to the Como Zoo on Tuesday, May 5th and Wednesday, May 6th. For many children it will be their first time riding on a school bus. 2.*a The 7th Annual Eagan Fun Run will be held on Saturday, May 2nd. Over 200 runners are expected. 3.*« Summer recreation staff are currently being interviewed. Over 45 applications were received for 10 positions in Summer in the Park, Eaganettes and T-Ball. 4.*« The cold, wet weather has caused numerous cancellations of Eagan High School baseball games at Goat Hill Park and softball games at Northview Athletic. Make-up dates will be at a premium over the last three weeks of the Lake Conference schedule. 5.*« Field space for all EAA baseball and softball activities has been identified. The Department's agreement with Paramax/Unisys for the use of their private complex for youth games is of significant importance to the City's ability to provide sufficient field space in 1992. Future availability of the four (4) Paramax fields is uncertain. 6.*« In this time of scarce resources, particularly for seasonal employees, requests for services from organizations and the public in general, continue to escalate. The City Council authorized fees and charges for FY'92. Several department user fees are new this year. Additionally, where fees were previously waived for youth or school district activities, that is no longer the case. The YMCA has operated a day camp at Mueller Farm Park for the past two summers. The presence of that program has necessitated altering mowing and field dragging routes, has generated extra trash for pick-up, and has precluded the use of the park to Department and neighborhood programs. The YMCA has again requested the use of Mueller Farm Park during the Summer of '92. The organization has indicated that Mueller Farm park will be used only as a staging area. Neighborhood group events and Department activities can be scheduled at Mueller Farm this summer. 7.*« EAA has extended the registration deadline for the Memorial week-end travel soccer tournament to May 1st. It does not appear, at this time, that the tournament will fill to its hoped for number of teams. More specific information will be known by the time of the Commission meeting. 8.*« Staff met with the Eagan High School student council, responding to an invitation from Amy Carlson, the EHS Recreation Sub-committee representative. The students specifically inquired about sand volleyball leagues. They inquired about the proposed swimming pool/arena. The students were enthusiastic about the pool concept the City has proposed. Staff attempted to reverse the tables, that is, allow the students to fire questions as the rec-subcommittee is prone to do to the students! The "Kids" were pretty quiet at 6:45 A.M.!! The subject of "battle of the bands" drew smiles. Staff's assessment of meeting with the student council is: The initial meeting of youth and adults is inconclusive - the time to build trust is not there. The students are wondering who is this person! The "spark" from a handful of the students who pick up on why you are there, makes the contact worthwhile. The key, however, is to enable the contact to become on-going! A once a month sound byte, so to speak! I~• 9.*« Following a "many blind alley" search, staff has found an affordable storage box to use at athletic sites. The metal boxes will be built by a local Eagan firm. Maintenance will coordinate the final touches, such as painting. 10.*« Staff are meeting with Michael Lenzen who is interested in establishing a Dakota County Performing Arts Center. In that the Eagan Stagedoor Performers are inactive at the present time, staff is interested to learn more details of this potential cultural arts project: ll.*« Saturday, May 2 will find recreation staff active with a variety of programs. The Fun Run occurs in the morning, the Eagan High School, 9th grade softball tournament. runs morning and afternoon, the baseball clinic is also a morning and afternoon event and the Thomas Lake Native Prairie seminar occurs in the afternoon. 12.*« Staff are gearing up for a record number of data entries for summer programs. Registration begins on May 16, with newly expanded hours of 8:00 A.M. - 1:00 P.M. 13.*« Northview Athletic Fields will host the first round of Region LkA girls fast pitch softball tournament play on Saturday, May 16. Third round action on May 26, and the finals on May 29, will also be played at Northview. The Department will run concessions for the event. 14.*« Eagan seniors have been invited to a matinee performance of Apple Valley High School's production "Into The Woods", and to an evening performance of Eagan High School's "Rumors". Seniors admission is free. The only catch is that both events are on May 14! 15.*« A major computer disaster occurred just as the final art work was being placed on the Discover Us summer recreation section of the May Newsletter. Cherryl Mesko is to be commended for her heroic effort to re-format 20 pages of copy to meet the printers timeline. 16.*« One hundred twelve (112) people enjoyed the Earth Day Festivities at Thomas Lake Park on April 25th. The cold temperatures kept away a few registrants, but the brave souls that ventured out enjoyed a walk, lunch, booths, presentations, and prizes. The combination of Arbor Day participants, Volunteer Recognition Day, and the Earth Day Walk helped create the relatively good turnout. 17.*« Two hundred eighteen (218) teams are beginning the 1992 adult softball season April 27th. Co-Rec leagues are on the rise, but men's and women's teams have declined. Two hundred six (206) teams registered in 1991. Twenty new co-recreational teams are in two new leagues, including a Wednesday morning league consisting of Northwest Airline's teams. 18.*« Almost 300 registrants are ready for the Baseball Clinic, Saturday, May 2, at Northview Athletic fields. Bob Sadek's Eagan High School team and staff will work with youth on fundamentals. A lunch is included. 19.*« Under a cooperative project with ISD #196, the Parks and Recreation Department installed new infields and backstops at Northview Elementary School. The project was necessitated in part by the expansion of the parking lot at Northview School and reconstruction of Diffley Road. The new infields will be a significant improvement for the City sponsored athletic teams which use this site. 20.*« Work began in a number of areas related to turf maintenance. Sod repair and replacement was done at a number of parks and winter skating facilities. The early winter, combined with a lack of frost led to a number of problems with sod damage. Aerification of the City's athletic sites and other premium turf areas was completed during the month of April. In addition, the City's four athletic irrigation systems were put into operation, and fertilization also began on the parks and public building sites. 1~ • 21.*« Final preparations were completed for the baseball and softball seasons which started in the last half of April. These projects included athletic field fence and backstop inspections, field blading and dragging, foul line striping and the daily set-up and operation of the athletic sites. 22.*« The Dakota County Sentencing to Service adult restitution work crew began work in Eagan's parks on Wednesday, April 29th. The program known as STS, was implemented by the County in 1991, as an alternative to incarceration. The crew is expected to be working in City parks for about three weeks this spring. Their primary focus will be the re-staining -and painting of all park shelter buildings, and painting/staining of the City's 15 hockey rinks. A big word of thanks goes to the County for their help in this area! 23.*<< Construction of 12 new athletic benches were completed in April. These benches will be installed at the Dakota Hills Middle School and Northview Elementary fields under a joint venture with the school district. 2A.*« The Parks Maintenance staff assisted with a number of special events in the community during the months of April and early May. These included the Groundpounders Running Series, Earth Day and Arbor Day activities and City Clean Up Day. 25.*<< A new soft toss batting net was installed at Goat Hill Park. The net will be used by young sluggers who want to hone their batting skills. 26.*« Most of the routine park maintenance work got into full swing into the month of April. This included playground inspections, tennis and hardcourt inspections, refuse maintenance and parks mowing (which began the last week of April). 27.*<< The Parks and Recreation Department took delivery on several new pieces of equipment in the month of April. These included a new sod cutter, utility truckster, and athletic field striper/utility cart. 28.*« The winter aeration system is removed from Fish Lake during the week of March 30, 1992. Special thanks given to Dan Curtin, Steve Taylor and Jim McGuffee for their work in setting up and operating the system over the winter season. 29.*<< On April 10th, the City of Eagan, along with other communities from the South Metro area hosted a special workshop entitled "This Old Playground". The workshop was held at the Apple Valley maintenance facility and was attended by over 50 park maintenance employees and supervisors from 12 communities. The purpose of the program was to build awareness among maintenance staff of the importance of accurate documentation and thoroughness during the playground inspection process. Speakers included Dave Drugg and Ed Lucz, from Berkley Risk Services (risk managers for the League of Minnesota Cities Insurance Trust) and Dan Wagner and John Demko representing Landscape Structures and Earl F. Anderson Associates (playground manufacturers and distributors). Video tapes of the program are being made available to the Minnesota Recreation and Park Association and the Minnesota Park Supervisors Association for use in training programs by other communities throughout the State. 30.*<< Another year of successful Arbor Day Programs came to a close with the public tree sale held on Saturday, May 2, 1992. Nearly 400 families purchased 750 deciduous and evergreen trees during the sale which lasted from 7:30.A.M. until 1:00 P.M, As the Commission is aware, this is the 5th year that the City has had a tree sale, which is done through a pre-registration process. 31.*« The Annual Arbor Day Program was attended by nearly 90 people on Saturday, April 25th, at Wescott Station Park. Unfortunately, the weather was less than favorable this year (that's 5 years in a row!). Despite that, nearly 100 new deciduous and evergreen trees were installed in the park. The Mayor and City Administrator were also on hand for the presentation of the Tree City Awards. A special thanks '7'1. goes to all of the sponsors who supported the program through financial and material donations to the community. In particular, the Parks and Recreation Department would like to thank First Bank Eagan, Franks Nursery and Crafts, Cross Nursery and the Eagan Garden Club for their significant contributions this year. 32.*K During the week of April 20th, City Forester Tom Schuster conducted the 5th Annual Tree Conservation at the City's eight elementary schools. More than 800 students participated in the program, which included a seedling giveaway, a poster drawing contest and an audio visual presentation by the City Forester on the value of planting and preserving trees. The grand prize poster winner was Maisa Frank, from Oakridge Elementary. Her winning poster was announced at the Arbor Day Program on April 25th. Her art work will be featured on next year's Arbor Day poster and distributed to the third and fourth grade elementary students in Eagan schools. 33.*« Other forestry activities included: o Moving trees out of the Blackhawk Nursery prior to the planned grading of the park this summer. o Completion of the clean-up and restoration of Wescott Station following the tree planting. o Tree pruning in various parks. o Removing winter wrap from nearly 1,000 trees. o Writing and publication of two new forestry brochures entitled "Planning the Residential Landscape" and "Dealing with Home Landscape Problems". 34.*« A report entitled "Use of Lawn Chemicals In The Twin Cities" by the University of Minnesota's Department of Agricultural and Applied Economics was released to the media in late April. Staff are reviewing the report and will be ready to discuss its findings at the June meeting. 35.*« As discussed at the last Commission meeting in April, staff conducted an informal survey of several retailers and commercial applicators of lawn fertilizers as well as received information from three other communities in the Metro area that have fertilizer/pesticide ordinances. A summary report on the findings will be prepared for the June Commission meeting. *City Council - April 21 *Commission meeting - April 9 MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARK PLANNER DATE: APRIL 21, 1992 ' RE: APPLICATION REQUESTS The Advisory Parks, Recreation and Natural Resource Commission will review three (3) development items at the May 7, 1992 meeting. Provided are reduced development graphics for each of the following proposals: a I. LEXINGTON POINTE 8TH ADDITION Application Request A Comprehensive Guide Plan Amendment changing the land use designation of approximately 65 acres from CPD (Commercial Planned Development) to D-I (Single Family Residential, 0-3 units/acre), a Rezoning of approximately 65 acres from CSC/PD (Community Shopping Center/Planned Development) to R-1PD (Single Family-Planned development), thereby amending the Lexington South Planned Development, and a Preliminary Plat consisting of 167 single family lots and six Outlots on 80.4 acres. Location The subject parcel is south of Diffley Road, east of Lexington Avenue, north of Walnut Hill Park and west of the Lexington Pointe subdivision. Items for Review The Commission will review the parks and trails dedication obligation. The developer is also obligated in providing a north/south trail linkage from Daniel Drive to the Highline Corridor. Some tree loss is proposed along the south property line. The Commission will need to evaluate the proposed trail alignment. Lastly, the Commission will be reviewing ponding to meet the water quality obligation. /7 ' 2. LAKEVIEW TRAIL ADDITION Application Request - A Rezoning of approximately 19.5 acres from AG (Agricultural) to an R-1 (Single Family) district and a Preliminary Plat consisting of 35 lots. Location The subject parcel is east of Dodd Road, south of Todd Avenue and west of State Highway #3. Items for Review The Commission will review acquisition of parkland and a cash trails dedication. Some tree loss is proposed within Lots 16 and 17. The Commission will be looking at ponding to meet the Water Quality obligation. 3. DEERWOOD SCHOOL, 2ND ADDITION - INDEPENDENT SCHOOL DIST #196 r Application Request A Rezoning of approximately 23.5 acres from AG (Agricultural) to PF (Public Facilities) and a Preliminary Plat consisting of one lot for a middle school located along the south side of Deerwood Drive, west of Pilot Knob Road in the SE 1/4 of Section 21. Location The subject parcel is located south of Deerwood Drive adjacent to Deerwood Elementary School. Items for Review The Commission will review a cash trailway dedication. Tree loss is proposed adjacent to a small pond. The Commission will be evaluating both a wetland replacement and water quality ponding issue. Please contact me at 6814660 if you need any additional information. Thank-you. SS/bls cc: Ken Vraa, Director of Parks & Recreation Rich Brasch, Water Quality Coordinator Lexington Pointe 6th Additio 8t rg W J fc. LO C AT i O N • zx . 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Ips •a= `~If~ Vii/ i + ~ ,~f 'i~; %~~r' ^ ~ ` ( ~i - ~ ~ ~ I• ~i•^~ r 01 Awe s flf,s ii ~~~IL~11.s.,1!ll~lliltltt# _ ~~F All fell PH f. x I ED .11 [ell Pit$ Iiii TT 91 * ,u Lii J, ills ti. 1 .1 is 1 12 Sill oo, loo, % % .01 % mm- 1 I11 SUBJECT: COMPREHENSIVE GUIDE PLAN AMENDMENT, REZONING, PRELINIINARY PLAT (LEXINGTON POINTE 8TH ADDITION) APPLICANT: JAMES A. CURRY & C. DAVID SCHENKEL LOCATION: NW 1/4 OF SECTION 26 EXISTING ZONING: CSC (COMMUNITY SHOPPING CENTER) PD (PLANNED DEVELOPMENT) DATE OF PUBLIC HEARING: APRIL 28, 1992 DATE OF REPORT: APRIL 22, 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been submitted requesting a Comprehensive Guide Plan Amendment changing the land use designation of approximately 65 acres from CPD (Commercial Planned Development) to D-I (Single Family Residential, 0-3 units/acre), a Rezoning of approximately 65 acres from CSC-PD (Community Shopping Center-Planned Development) to R-1-PD (Single Family-Planned Development), thereby amending the Lexington South Planned Development, and a Preliminary Plat consisting of 167 single family lots and four outlots on 80.4 acres located in the SE corner of Lexington Avenue and Diffley Road. BACKGROUND: Lexington Pointe 8th Addition is included in the Lexington South Planned Development which has been in existence since June 21, 1976. The total acreage of the Planned Development is 1,153 acres. In 1990, the subject area became part of the proposed Eagan Center Planned Development which included a retail mall, ice arena, YMCA, movie threatre, restaurant, auto-related uses, and entertainment uses. - The PD Agreement was never formally approved and the application was withdrawn in March 1991. Originally, the Lexington Pointe 8th Addition was submitted for the March 24, 1992 Advisory Planning Commission. This item was continued at the applicant's request prior to the meeting. That proposal included 27 lots and six outlots. Meetings were held with the owners of the property north and south of the proposed Lexington Pointe Parkway to explore the potential of platting all 80.4 acres with this submission. The development- of the entire site as commercial was determined by the developers to be excessive and cannot be absorbed into the next decade. In May 1988, Laventhol and Horwath prepared a retail commercial market analysis of the City of Eagan. The purpose of this study was to provide information regarding the level of supportable commercial space within the City through the year 2010. The information provided (building sq. ft. and acreages) was to be used for policy decisions regarding commercial growth in Eagan. Major ~3• retail nodes were identified and the Lexington and Diffley area was identified in the study as node #4. Node #4 was found to have an excess of acreage in the retail .commercial space categories. The study shows the supportable acreage of this site as being approximately 11 acres for the length of the study period. The developer is proposing a total of 11.6 acres for commercial. Staff has been working with the owners and developers (Brad Swenson to the south of VL.e x in =ak inte Par om who is develo in the land north of Lexin on rate ay) o f this p roposed project with regard to engineering an panning concerns. month of further consideration, the applicants have resubmitted new plans addressing all concerns. EXISTING CONDITIONS: The proposed site is located south of Diffley Road (County Road 30), east of Lexington Avenue (County Road 43), north of Walnut Hill Park, and west of Lexington Pointe 3rd, 6th, and 7th Additions. The zoning of the surrounding properties is PF (Public Facilities) to the north, PD/R-1 to the east, and PK (Park) to the south and the west across Lexington Avenue. The Comprehensive Guide Plan indicates Public Facility to the north with a small area of D-III (Mixed Residential, 6-12 units/acre), D-1 (Single Family, 0-3 units/acre) to the east, Parks to the south and west, with a small portion of D-III across Lexington Avenue. A pond is located in the SE portion of the proposed plat (Lots 60-69). This pond will serve as a storm water pond, as well as an amenity to the plat. PROPOSAL: The applicant is proposing to plat 167 single family lots ranging in size from 10,500 sq. ft. to 72,500 sq. ft. These meet, or exceed, the requirements of the Lexington South Planned Development Agreement. Also, inc in the lat are four outlots ran ' g in size from 164 ages to 5.05 acge_ At this time, the Rezoning and mprehensive Guide Plan request is only for the 167 single family lots, however the total area of the Preliminary Plat is for the entire 80.4 acres. The four outlots will remain zoned CPD (Commercial Planned Development). Access to the site is from Lexington Avenue from the west and a temporary cul-de-sac at Lexington Pointe Parkway from the east. The R.O.W. width along Lexington Pointe Parkway abutting the single family homes is 60'. A 32' or less street and no parking is proposed by the developer. Access from the north is from existing Daniel Drive to the proposed Eagan Center Road. The plan indicates six cul-de-sacs serving the 89 lots to the north and four cul-de-sacs serving 78 lots to the south of Lexington Pointe Parkway. The proposed plan shows 34 single family lots which will have double frontage to the north of Lexington Pointe Parkway and 14 to the south. Proposed in this addition are 18 flag lots at the end of the cul-de-sacs ranging from 20' minimum frontage on Lot 60, Block 1, in the southern half of Lexington Pointe 8th Addition to 50' on Lot 57 in the same cul-de-sac. However, the average is approximately 35' with most being near 30' on the north side of Lexington Pointe Parkway. A Variance will be i required to allow less than a 50' minimum lot frontage for the seven lots to the south and eleven lots to the north for a total of 18 flag lots. The plan contains the flag lots on the end of the cul-de-sacs which the developer believes have some important advantages, including the building of L-shaped garage home configurations, easy siting of three-car garages, setback variety, and the ability to plat a more-creative land plan without losing a large number of lots. The developer, Bob Engstrom Companies, has developed lots similar to this at High Point at Elm Creek in Champlin. He is also proposing a boulevard with one way streets and a pathway serving six cul-de-sacs and 89 homesites on approximately 31.8 acres. The one-way street is proposed to be 16' wide to provide snow plowing efficiency and is proposed to provide visual impact through boulevard planting. The developer proposed this plan to provide pedestrian and vehicular access to the commercial areas while avoiding "short cut" traffic. The minimum lot width at the building line is 73' for all lots and the developer is proposing a side yard setback of 5' on each side. The request for 5' setbacks would require a Variance of 5' to the side setback for all dwelling units in this development. No driveways are proposed for Lexington Pointe Parkway; the developer felt it would be a safety hazard as well as a visual deterrent to have so many driveways on a collector street. The commercial areas are designated as outlots on the plan and are located along Diffley Road and Lexington Avenue. There is an existing day care facility abutting Lexington Pointe Parkway to the south on Lexington Avenue and also an existing strip mall to the north of Patrick Road on Lexington Avenue. Eagan Center Drive is the proposed street which will separate the commercial and interior residential areas. These commercial areas will need to be landscaped well in order to buffer themselves from the adjacent residential use. Special landscape features have been prepared for the double fronted lots including a 42" black chain link fence in a staggered design with gates, and trees, shrubs, and perennial for plantings. A Homeowners' Association document will prohibit the placement of structures or storage of materials along the back 20' of the lot, the main vehicular pedestrian street to be landscaped with trees, shrubs, and perennials. It will also provide initial and continuing architectural approval and the maintaining of median landscaping. Landscaping requirements will be required similar to The Woodlands and Engstrom's Deerwood Additions. This would include planting, along the back lot lines and shrub, flower planting area, adjoining the front lot line. A trail connection to the commercial and adjoining residential areas is provided near Diffley and Daniel Roads. The trail continues down the center of the landscaped boulevard and connects with the trail along Lexington Pointe Parkway, then southerly through the new development to the Walnut Hill neighborhood park. This trail needs to be installed prior to landscaping in the median. PARKS & RECREATION: The Advisory Parks, Recreation and Natural Resource Commission will be reviewing this plat at the May 7, 1992 meeting. Staff's preliminary recommendation to the Commission is the development be subject to both a cash parks and trails dedication. The proposal also includes the north/south trail corridor from Daniel Drive to the Highline Corridor. Preliminary review indicates that the trail alignment is feasible and ys. eleven lots to the north for a total of 18 flag lots. The plan contains the flag lots on the end of the cul-de-sacs which the developer believes have some important advantages, including the building of L-shaped garage home configurations, easy siting of three-car garages, setback variety, and the ability to plat a more-creative land plan without losing a large number of lots. The developer, Bob Engstrom Companies, has developed lots similar to this at High Point at Elm Creek in Champlin. He is also proposing a boulevard with one way streets and a pathway serving six cul-de-sacs and 89 homesites on approximately 31.8 acres. The one-way street is proposed to be 16' wide to provide snow plowing efficiency and is proposed to provide visual impact through boulevard planting. The developer proposed this plan to provide pedestrian and vehicular access to the commercial areas while avoiding "short cut" traffic. The minimum lot width at the building line is 73' for all lots and the developer is proposing a side yard setback of 5' on each side. The request for 5' setbacks would require a Variance of 5' to the side setback for all dwelling units in this development. No driveways are proposed for Lexington Pointe Parkway; the developer felt it would be a safety hazard as well as a visual deterrent to have so many driveways on a collector street. The commercial areas are designated as outlots on the plan and are located along Diffley Road and Lexington Avenue. There is an existing day care facility abutting Lexington Pointe Parkway to the south on Lexington Avenue and also an existing strip mall to the north of Patrick Road on Lexington Avenue. Eagan Center Drive is the proposed street which will separate the commercial and interior residential areas. These commercial areas will need to be landscaped well in order to buffer themselves from the adjacent residential use. Special landscape features have been prepared for the double fronted lots including a 42" black chain link fence in a staggered design with gates, and trees, shrubs, and perennial for plantings. A Homeowners' Association document will prohibit the placement of structures or storage of materials along the back 20' of the lot, the main vehicular pedestrian street to be landscaped with trees, shrubs, and perennials. It will also provide initial and continuing architectural approval and the maintaining of median landscaping. Landscaping requirements will be required similar to The Woodlands and Engstrom's Deerwood Additions. This would include planting along the back lot lines and shrub, flower planting area, adjoining the front lot line. A trail connection to the commercial and adjoining residential areas is provided near Diffley and Daniel Roads. The trail continues down the center of the landscaped boulevard and connects with the trail along Lexington Pointe Parkway, then southerly through the new development to the Walnut Hill neighborhood park. This trail needs to be installed prior to landscaping in the median. PARKS & RECREATION: The Advisory Parks, Recreation and Natural Resource Commission will be reviewing this plat at the May 7, 1992 meeting. Staff's preliminary recommendation to the Commission is the development be subject to both a cash parks and trails dedication. The proposal also includes the north/south trail corridor from Daniel Drive to the Highline Corridor. Preliminary review indicates that the trail alignment is feasible and provides effective pedestrian circulation. Lastly, staff is awaiting a detailed tree massing plan which indicates tree preservation/loss along the south property line. Future evaluation of the developmental impact to the woodland resource is pending. GRADING/DRAINAGE/EROSION CONTROL: The existing terrain on the north side _ of Lexington Pointe Parkway is fairly flat with no trees on the site. Grading for the area ' north of Lexington Pointe Parkway will consist of creating berms along the north and west sides of the developed area and cuts of up to 5 feet along Pointe Esplanade as it slopes to the south. Grading for the area south of Lexington Pointe Parkway will consist of cutting of the westerly portion by up to 8 feet and fills of 6 feet in the house pad areas along the south property line. The grading along the south property line adjacent to the park shall be minimized to lessen the impact to the trees in this area. The preliminary grading plan shows regrading and shaping of Pond JP-50 to meet storm water retention needs and water quality requirements. Pond JP-50 is a designated ponding area identified in the City's Comprehensive Stormwater Management Plan. The contours for pond grading as shown on the plans submitted for review for this report show a' pond with a 100 year storm event storage capacity of 7.9 acre/feet. This required pond storage volume should be 10.6 acre/feet to serve the 71 acres that will contribute to the pond. This grading plan should be revised to show contours meeting this required storage capacity. Pond JP-50 currently outlets to the north to Pond JP-28. A trailway will be graded along the west slope of Pond JP-50 and along Lexington Pointe Parkway as part of the City of Eagan Parks Department trailway system. This -trailway will also continue up Esplanade Pointe to the north and easterly over to Daniel Drive along the south side of Eagan Center Road. The development will be responsible for installing and maintaining erosion control measures in accordance with the City's Erosion/Sediment Control Manual Standards. WATER QUALITY: This development is located in the south central region of drainage basin J. The nearest downstream recreational class water body is Pond JP-9 in Patrick Eagan Park, a Class II lake intended to have water quality sufficient to support indirect contact recreation. Pond JP-9 does not currently meet the water quality standards set for it in the City's Water Quality Management Plan. _ On-site ponding to meet the water quality standards for a portion of this development is both desirable and feasible. A partially constructed pond, Pond JP-50, lies in the southeast comer of the development. This pond will be used to treat stormwater from the roughly 70 acres of the parcel that will be developed for single family residential use. The remaining 10 acres along Diffley Road are zoned for commercial uses but will be platted as outlots. The developer has elected to deal with water quality requirements for that area when it is re-platted for development at a later date. Stormwater runoff from about 54 acres of the Lexington Pointe 8th Addition will drain to JP-50 under the proposed storm sewer configuration. The remaining 16 acres of the single- family lots will drain off-site around the edges of the development. However, 16.8 acres of the Lexington Pointe 3rd and 6th Addition will also drain to JP-50. The 3rd and 6th Additions received preliminary plat approval prior to the effective date-of the City's water quality ordinance. However, in order to meet treatment obligations for the proposed single family area within the Lexington Pointe 8th Addition, Pond JP-50 must be used to treat runoff from the 3rd and 6th Additions to make up for area in the 8th Addition that cannot be intercepted by the pond. To provide adequate treatment, Pond JP-50 must have a minimum surface acreage of 1.1 acres at the NWL, a minimum wet pond volume of 5.7 acre-feet, and a minimum average depth of 5.3 feet below the normal water elevation. The pond shall be constructed according to NURP standards and the pond design shall be approved by the City. In addition, installation of a skimmer on the outlet of JP-50 is required. This recommendation is subject to approval by the Advisory Parks, Recreation, and Natural Resources Commission. UTILITIES: Sanitary sewer to serve all 167 proposed lots within Lexington Pointe 8th Addition will connect to an existing manhole located approximately 350 feet east of Lexington Avenue along Lexington Pointe Parkway. This existing manhole connects to an 8" sanitary sewer that flows to Lexington Avenue and thence south. The sanitary sewer in Lexington Pointe Parkway and Lexington Avenue has sufficient capacity and depth to serve all of the lots within this plat. Watermain of sufficient pressure and capacity is readily available to serve this site from Daniel Drive, Diffley Road, Lexington Avenue, Patrick Road and Lexington Pointe Parkway. The preliminary utility plan shows two water main connections; one connection in the northeast corner at the Eagan Center Road/Daniel Drive intersection and another connection in the southwest comer of the plat off Lexington Avenue. At the back of the report is a copy of the City's Water Distribution System Plan. The Plan shows that a 12" trunk water main shall be constructed along the alignment of Eagan Center Road from Daniel Drive to Patrick Road and then to Lexington Pointe Parkway. If the change in zoning and land use from Commercial to Single-Family Residential in the 8th Addition is approved, then the City should re-analyze the size and location of the trunk water main in Eagan Center Road. Also shown on the Water Distribution System Plan is an 8" water main that shall be constructed on Lexington Pointe Parkway through this development. The location of the 8" water main loop through this development also needs to be analyzed. STREETS jACCESS f CIRCULATION: Street access for the proposed development will be provided by the construction of Lexington Pointe Parkway from Lexington Avenue to the connection to the east in Lexington Pointe 3rd Addition. The 89 lots on the north side of Lexington Pointe Parkway are proposed to connect to Lexington Pointe Parkway in one location approximately 1,000 feet east of Lexington Avenue. The 78 lots on the south side of Lexington Pointe Parkway are proposed to connect in one location also, but this intersection is shown to be 500 feet east of Lexington Avenue. City staff recommends that the connection point for the 78 lots to the south shall be shifted to the east to match the same intersection of the 89 lots to the north. This intersection will require a four-way stop sign. The four-way stop intersection will provide a controlled intersection for pedestrian crossings along Lexington Pointe Parkway, which is designated as a Neighborhood Collector street. The platting of the lots along Eagan Center Road-will require the construction of this street from Daniel Drive to Lexington Avenue. The completion of Eagan Center Road will allow the lots that abut the street to complete their landscaping. The developer has the option to construct Eagan Center Road privately or under a public improvement contract. If the developer petitions the City to construct Eagan Center Road, the public hearing must be held and the project approved by Council before final plat approval. Attached at the back of the report are cross-sections of Eagan Center Drive and Lexington Pointe Parkway. The cross-sections show staff's recommendations for street and right-of-way widths, boulevard spacing and trail locations. The projected traffic volumes from the fully developed area will require two lanes of traffic at the following locations: 1. Westbound on Eagan Center Road from Lexington Avenue to Lexington Pointe Parkway; 2. Westbound on Lexington Pointe Parkway from Eagan Center Road to the east for 200 to 300 feet; and 3. Eastbound on Lexington Pointe Parkway from Pointe Esplanade to the west for 200 to 300 feet. The 2 lanes of traffic plus the one lane of traffic for the opposite direction will require a 40 foot wide street and no parking. In the other portions of Lexington Pointe Parkway and Eagan Center Drive, the minimum street width shall be 36 feet face to face with no parking on both sides. The 36 foot wide street will provide 2 lanes of traffic (one lane in each direction) and a safety zone along the curb for stalled vehicles or bicycle traffic. RIGHT-OF-WAY/EASEMENTS/PERMITS: This development shall dedicate all right-of- way and easements necessary for Lexington Pointe Parkway and Eagan Center Road and all other proposed public streets. This development will be responsible for dedicating ponding easements over Pond JP-50 up to the HWL of the pond. Also, drainage and utility easements shall be dedicated for all sewer and water lines that are constructed outside of the public right-of-way. This development shall be responsible for ensuring that all regulatory agency permits (MPCA, MWCC, MnDept. of Health, Dakota County, MnDOT, etc.) are acquired prior to final plat approval. FINANCIAL OBLIGATION - Lexington Pointe 8th Based upon the study of the financial obligations collected in the past and the uses proposed for the property, the following charges are proposed. The charges are computed using the City's existing fee schedule and connections proposed to be made to the City's utility system based on the submitted plans. Improvement Use Rate Quantity Amount Sanitary Sewer S.F. $720/lot 166 lots $119,520 Trunk Water Trunk S.F. 750/lot 89 lots 66,750 Storm Sewer S.F. .069/S.F. 1,010,592 S.F. 69.731 Trunk Total $256,001 There are levied assessments totaling $256,765 on the parcels proposed for platting into Lexington Pointe 8th. At this date, there is a pending assessment of $168,147 against one of the properties proposed for platting. Another project is under consideration which will result in pending assessments. /01. CONDITIONS FOR LEXINGTON POINTE 8TH ADDITION 1. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al, B1, B2, B3, B4, C1, C2, C3, C5, Dl, El, F1, G1, & H1 2. The commercial lots shall provide landscape plans on grading plans indicating berming adjacent to the residential properties. 3. The one-way street is proposed to be 16' wide. 4. The side yard setbacks of 5' shall be allowed on each side. No other Variances shall be approved for this plat. 5. A Variance shall be required for the minimum street frontage width for the 18 flag lots. 6. The trail must be installed prior to the installation of landscaping in the median. 7. The Lexington Pointe Parkway plan shall include a 42" black chain link fence in a staggered design with gates and shall be landscaped. 8. A Homeowners' Association shall be formed and covenants shall be provided to the City prior to Final Plat.. 9. No accessory structures or storage along the rear 20' of the lots. 10. Trees shall be permitted 7' from the back of the curb. 11. Pond JP-50 shall be final graded and restored in accordance with the City's Erosion/Sediment Control Standards with this development and the grading of the pond shall be sized to meet the Storm Water Management Plan's design standards. 12. To meet water quality requirements for this development and the future outlots of Lexington Pointe 8th Addition, Pond JP-50 shall have a minimum surface acreage of 1.4 acres, minimum wet pond volume of 7.7 acre-feet, and an average depth of at least 5.7 feet below the normal water level. 13. The stub streets and the utilities in the stub streets shall be constructed to the outside edge of the plat by this development. 14. Lexington Pointe Parkway shall be constructed with concrete curb and gutter with a width of 44 feet face-to-face and the right-of-way width shall be 80 feet. 15. No driveway access will be allowed to the stub streets proposed on the westerly edge of the development. STANDARD CONDITIONS OF PLAT APPROVAL A. Financial obligations 1. This development shall accept its additional financial obligations as defined in the staff's report in accordance with the final plat dimensions and the rates in effect at the time of final plat approval. B. Easements and Rigbts-of-Wav 1. This development shall dedicate 10' drainage and utility easements centered over all common lot lines and adjacent to private property or public right-of-way. 2.. This development shall dedicate, provide, or financially guarantee the acquisition costs of additional drainage, ponding, and utility easements as required by the alignment, depth, and storage capacity of all required public utilities and streets located beyond the boundaries of this plat or outside of dedicated public right-of-way as necessary to service this development or accommodate it. 3. This development shall dedicate all public right-of-way and temporary slope easements for ultimate development of adjacent roadways as required by the appropriate jurisdictional agency. 4. This development shall dedicate adequate drainage and ponding easements to incorporate the required high water elevation necessitated by City storm water storage volume requirements. C. Plans and SRecifications 1. All public streets and utilities necessary to provide service to this development shall, be designed by a registered professional engineer in accordance with City codes, engineering standards, guidelines and policies. 2. A detailed grading, drainage, erosion, and sediment control plan must be prepared in accordance with current City standards prior to final plat approval. 3. This development shall insure that all temporary dead end public streets shall have a cul-de-sac constructed in accordance with City engineering standards.. /d3• STANDARD CONDITIONS OF PLAT APPROVAL PAGE TWO 4. A detailed landscape plan shall be submitted on the j proposed grading plan. The financial guarantee shall be included in the Development Contract and not be released until one year after the date of installation. 5. All internal public and private streets shall be constructed within the required right-of-way in accordance with City Code and engineering standards.' D. Public Improvements 1. If any public improvements are to be installed under a City contract,.the appropriate project must be approved at a formal public hearing by council action prior to final plat approval. E. Permits 1.• This development shall be responsible for the acquisition of all regulatory agency permits in the time frame required by the affected agency.. F. Parks and Trails Dedication 1. This development shall fulfill its parks dedication requirements as recommended by the Advisory Parks and Recreation. Commission and approved by Council action. G. pater duality Dedication 1. This development. shall be responsible for providing a cash dedication in addition to/in lieu of ponding requirements in accordance with the criteria identified in the City's water Quality Management Plan. H. Other 1. All standard platting and zoning conditions shall be adhered to unless specifically granted a variance by Council action. Advisory planning Commission city council Approved: August 25, 1987 September 15, 1987 Revised: July 100 1990 plataprv.con LTS #2 ~cn~nyavn rVnfaw Ott] AQOIiIO'I J 7-11 1;' ,gE S g~ •~i~G4N T. z ~ d~ ~ toll, o,F F~Y ~ LOCATION f. Ft JADE ap t - ~.r! 4p V A N c! ! v a~N ~S PKWYT j D ~ z C ~c .GQAT HILL - r . 5 6 I~ PARK u . : s scyoc_ a P - ZONING 60 PK PA WALNUT j - PK PARK SCKWAW LYfE R-1 PAtn OAK ' S.DnT- 0.01 PF c 0 J o- ID. P ' - 11 D 11 GUIDE PLAN .nDC r ",rsS P kli _ ir'1 Lexington Pointe 8th Addition IR3 1 I !-1 R-1 1 #MRT"VM ISAMM&W SOOO1 • I -'--J L----------r-------Z-------------- ---Y -L tO1tN DiFM SOAD { T 101' - a ru)f a ONIDI IF a GKIN FM 21 O1 1c O m . t ac cY • i..M.~ ~1M•.f ~1r. 0010 • EAGAN OtA101 c 49ITER MAD • 53 s.r ,r 43 M p 1I 0 A . ~ 1• 39 41 42 54 ` a1x-L-y- YY - cIi aA o -ss , I 28 . C Imp- 56 t 321 a 31 >e F Y w•. .w. I . 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T 1 1 N 1 I A I BRANADE J I 7e r - R 1 ~a.l s ~ 17' I s r " ~ _ " I f;lSb E N I N s I 47 jm (jttal - •l~oCsv pp 11 ~ ~ S q ~ SO' NSP MENT ~f''-~ ~ I 1- L 1 ~IiS'eI ~IS r i 1 I 1 Ifs ~ D rI 4 -4 R Y I ~ ~ , 1 W 1 I yn' ; ~EXINGT~ r - ~ 1 I co `ice. l • I ~ Ili ~ I Q I i 1 417 K ' ~ 1 _ N~~ 1 I w•i X11 I l~Ls f 4 ~ • 1 ~ ~ I ~ . rrt I I I n 0; 1: o 5(i NSP MENjI D Z AN, Ta`i' O• ' a x >R I ° ~ W 1 1 V I 1 1 NCTC'N LIE _ ~ / ~ ~ 1I IiI ~ I EAGAN 1 Ly, 1 I I ~a 1 s I I s L I V ~ 1 II 1 n / Rl I I I = i ~ _ 4 1 111 e - ! , S0NSP EA~MENT i /'ij-=T-i• I w - - - - 1 - r------ 1 ' _ I1 L-AF I , - _ / 49 _ ~ -{I -\~M ZZp rr, f ~-t-RI I , • . ~ Imo- i ~ JA FT, ZI • p~~ 11.4, 0 ..J ~r ~ , i; r 74: 1 .i . A . t4 Ito if i K~MA~y~`` i 1 Ig a = W a Aft 0 • K ~ R ~ Q 4 T j 5l { ' ' ~Z Y 1 I 1 , I Y I ; W ` a - r------ - I - - - ~ I n 1 i i Ps I EWAN TER I n + I o 1 I I N N ~ I ~ I /T\ _ 1 ~ . I~ I T ~1 q l tj N ' ^ / I I I I < I. _ ~ 1 ~ ' ~ 1 II I _ r y T +I • i I 30 NSP-ilENj--~- ~ 9 n, . I I i o Y ZZQ zx, I ; i D* AIL. L y,y QQ ~1 1 I r 1 Nc5c R gas R-3 K04CFON MACE j I I I v" N01 ~Tltlt Ifwl or,rsrw Data s. uahlw I.w W. ADDITION I I 4 v oaw • .r e. 9ai owr wr1 wllarw I / ~ ' 1fU1 a~t1w1 at ~r I I ~ ~ i 1 ►Ytth w: ~ 1 ~ / ~ \ la.a99-11►w fY. Ia1/tM. 19w1 91x1 l \ W Y•H, 1rr 1 l19 tv~ r I.iH.1R 99•R.I 1 NORTH Ia11wa1 II1w 9N rltm ll-1ul fl~lJ „ wti9lre _.PARKWAY e _ I I I W w, 9rq 1 la.9a,Y.r t,Hf.W 91.19.) - sclue oaw: - oars • I.w .vr r Il,lm r.ra, 1 - \ T - 100' ORlol ~ 9.M 9.a 9r~ r M.N9 .4R Oarlf !.H ari r tM•a. M•It. ; I oarao r IH,w tt.R. 1 69 rte.\j oala f t.r o.. r H.w p.n. 1 I 2 'I 1 :s 170 77 76 75 74 73 72 71 IS 10 I w wr \ oars r eR an9 • w,H9 M•H. ; '1 _ R«• le I~w• y--tq1www--rrr--y}1y}wM•' a...r` •v w•••~ I~Am." It Ip~ eMaa/'r: 1 1 LOT 11 BLOCK 60\ r u SQ W Isa11 a Isurlaal l9w 1`19.q t.a .t 9rr I l EACAN CENTER a.1w a u ow p lsw °rl.~ 1 .w. I ROAD A ww Hr tf.h9-1 ►fY 1.f I 3RO ADDIT l 9saYa itra L9 - 67 I Y r...l lrr..tla11 ----J 7 \44 t9.awa1www11Of11Nrn41-old" I tow IA9r! qM Id %9-- 19,if► . I'd Itw rr9► I S\' •I+wY 1as Ni ,w .aH. 1 r-1 _IY.. _11'. T. . r.lr.t 1w1 r.109 99.11. I J _ I D ~~7\ I tr9>•t W n.199 a.n. I 4 ' 94 66 r l Ir9walll.w tw rnrn lava urI l yo.I. 20 3' 16 49 LEXINGTON p9m1r Y19r yw t,rt19 i f1H1 11,9H tt•fl. - I 19t t. It 1 Ia'M1r ..•r~_- r Y911rt latl H,9H Mll. - _ Wit W 31,II9 mis. 32 r' Iw1i.. o wr 5 of r5 r1 i~' ..,r.: 1. y.rsma v-..1 ISwr O 9r1r Hwt lJ Infe On1ra M9r1 f191M 9rrw - C. .1lL. wow'° , wwr wr 22 IM11 r L pw 47S4 7•,64r~ j f SS rr I IR 1 3rd 4-016-11 T 14 23 I 30 39. 41 ' H,Ifar M,INOM rfrr 'pfsr InM Wr N I4._ IL4-f 13 24) 29 40 45 i` 56 F a~+.>sr aN ADDIT - - PARK - -y 9 y.. r _Iv..l 10 11 12 25 26 y 28 41 42 43 44 S7 sa 59 6,. I Ipw.n M'Nr' W 14-r' yf1.r ri+:1, q9w. plrr•Ir.1f- ifll vlol- tl,~ z q 60 / 1 ~EJCINfT YYALL4UT HLL PARK / ADDITION `r LEXINNGT POINTE I WEDGEWOOD 1N ADDITION ulh AJPIK)n PitEU-NWN R1 PLAT RECEIVED A.P 2 ~ ITV I R LEXINGTON AVENUE AI. - cu- 0 1. 4, V.t 1 CIL Y CUL. 8 fit '60 fill Zj jet;j7t3~ - - - y - - t 50 "SP EASEIGa.-i T ~ Pt w UXYrG-M N AVENUE CLL. 0 i ~I 1 • \ I I Imo/ I .I it ~ P . L • S ~ 1• I ~ I Z , 4q -I ~ g s N r Ulf, SP. N N. 1 NI II I • iv I IT Fait I ~ r l ~ ~ I I ~I y ' I T / c~ N ~p I I I I q ; M ` i I • r w W I ' - 311 ~yjNGTON UA - - ~n " i r N~` • W mr G ~ I61 t , l N 31 ti .i ~ ~ ~ I •is RIM. 1 F I ' " Ila '0 1 - NIA!-'fl Si I~ r I ' I I I 1 CSC I J XENSILTON RACE 1 MG i C Ist. ADDITION I I I I xnt~ ~ ' _ I I NDRTII TL----1 - - . ~ - SCALE: i \ ' ` T • 100' ; VS 7~ • 7 ♦ _ L1 ~1 LgX1~toN t•OINTb rAFF''Y I I u 2 1 78 is 77 fi ' I - I Il.lt JI I 1 KOCK ...t 1. ~ . ~ • .0 50 no CENTER I 1 RD~L) - 13 51 KEY j i~jl~l / p\ \ 33 36♦ ~ 49\ I ~iIIEXINGTQN \~~/yywyq] 1111111 / 16 \T1 32 37 m N \ \ u ~W~/ ' yeelo~b~s -mFYw$ ?ice ~_4 \ dlldll 'I n 7 22 i ! lB-\ I 47 \ 1 X 7. \ i3 \ ` . L Ord 14 _ 30 39 fi I I L{~ cFtPlde~i'[N~•ITEtc ~ ' ,~a ~ ~ _ _ _ I I SS// PARK u.. ;4s •.62''. li' $ TOO 4 r(~(1 sMfU-~ GRN~MENTII.'IfEb/$ftD ~ -•ixn~j1ly - 'u.- _I - ~cr - r i w \ •II ~il~rp°t~'6 " ter` - 1 I 591 . Ni '~17 ~~0 41' 47 -43--r 41' S7_ It LANDSCAPE PLAN DETAIL WALNUT FILL PARK XP4CT ~T DRAKAa 400ITION EASEMM ` ` I I LEXINGTON POINTE sOL1TN _ 78 SM, HONOI MS WEDGEWOOD ttt ADgTION M AwtaN LANDSCAPE e PLAN Y Y • ! T ea•- d nn 4•-a-%1 A T4- u a NwK A .M4 0 I ~C SECTION VIEW. LEXINGTON poINTE PARKWAY SC E-f-10 L ' ' r- I 3 t 41 a ~ o Q c 6 :a 1. ~ ~ _ • F _ $ ~ ~ 'wryer I g ~ ~~a 4122;12 . - -QCfi- at I r flw tlr• KDGIGfM RACE I I .fill Z~ I JS awl mNarr: wlr e. uNfrel ww Ul. ADDITK]N 1 I su77 f, a-.i' oalr..• t.r a a..•r e.v NN1V •tllaar 1 / t~ r,~n ~ ~ flra y w' s w ww am •tlrtNn Itrur a1r1 1 ..1 ,_y??:~ o-N..m la er. l.tol.ftl r.n.l 1 .M -i•~ph rwtl Nw M •IIaMr IN.w tlrl I woleTH i oa w.' •m I la.. er.r I.r.w ra.l KENSK~T~1~ • .SAIt1(WAY ow lr • Lr ~ rl.r an. 1 `:h . TR - _ 1 I I SCALE w blC f.N or IN. Na r./4 1 I rN1w t Oab 0 br rt t1a.r r.fa. ~ 1 ~ OM1Ma f t.r '.I M • 4,W r.h. WtN.. ..tl a ~ 3 ~ ''is'' ~t?:~li:xi~~ ':~a~ le.r r.ra. 1 •I lD •'::}i :•C•.•::; :•':'•~T'•7.~ ,~7'fi:~.. • ~ . , j t\/', n ra r rNw.. ww wrN.. a.t w 1 i LOf L RIAO(1 r.•• 'r'r+ ;r,tiv rrr' ~'~~'QIWa~•' L arri'w~.. ww sw rvwf .,..er 1 L,4" G3iTElt '':f:: ' ' ' • ' ' I I\ -.0 _ So_ n0 rwr♦ r....a taw t ~ T •:IDI{I):JI.;:.•.•:::::.•::.•:::.•::::~:•.. I r M ww ww •r/arr IM tltll - - - 1 : •N•4`.. • 1 N. ar nr: N.r r.fa. :411'+;. • ' rllra ua: 1 ''~II: ;:(~W%' •V,• .'A~~.S ••1✓• I , arr.a l.a: n.r .`i.n 1 :•tile•'• 4.•,j(.• f~Y :•r~ .i.. Itla~ hw fa tllNlw I+w.wl • ra•a ►Ir: If.r aw. 1 •:!Ir,IR:•: :•33'•::' ti•ii: ~ ' :;l4:. 1 IEIIMNGTON ~ r.n. U1..' fa•i+:: :•Jr ' ~f.Yt:. :'.}rte i •:::'!4[•~ Ir.Na ar: fl.r r.n. :~}f+Y' • ° ...•.i.:p: :,1:•:•:•'°.. .1 ar..r r...1 hrlr r.tl • $w! . •.~f.• : +i!•!f•::- yit:...•:.••33. •:.•ti!.!.!~ i , fas,rtll ly :•hvaV • '•;M{ ••',1'. :ry1,; •'•.16:• 'CJ• •'Et :V: ''I•' .•::•^•1~• I ..y, PARK .I;: rras: ;••yr+l•.. ..lawns. FINANCIAL OBLIGATION - i LEGEND 1 ~:a:•. ~•':~t~:~:A ~ ~ii:~ :~~i:~:'•'•,z:. '::~ii~: , '1<iai!kv 'r .if' . • :!iw!ii•.wii .wrier ' !iii. ' wrrlh; ' ' wii.i~illww d• ;ib':!!'.:~; ~ I Vil F~ SANITARY SEWER TRUNK VAMARM ►aL PARK " WATER TRUNK STORM SEWER TRUNK" ' ~ LExRrGTOI14 rowTE i S=H o s WEOGEKOW W ADDt"M M A1LfIDN PREL hW4AR1 PLAT 1 4 R C F'!V r. 32 ~ ~ 171 F P I I I j ~i ~ _ ~ = jW, v 1; W. SID ly I ~ tw M~ f1 g►,~i' I 1~~ f O _ W All R' W yl _ it r- AOVNVUS3 Mill J.F' S i I ty ut ,*rsl s R ff P* R `1 u "t re v 4 .1 x 1 I ~ ~/C l'-'" T a 10Vfb r I W I rW ' ------J an;t fAV' W1W i 1 1 1 1 r I r Y Z j z • Q i! i r f ertfl[ - W Q Y j 4 ~ 11:a121 w Z g '-ai~ad p N ! ~i 0 50090 j ass sss p fa c >!a>aaa Osia ) it _j z Q Ili si!!! 3!! t lip g c CO) 3 f S9• r-3091919 !!t t; r}3 V /IP U. J y. y -f} Y~{~ .Zr * `r lad.` ,4 b S Yy 3 ~:dl. fir, 78.0 J ,/j - - -JP-19 ~~a JP-81 ` 87.5 JP-58~ 8 BB74I.0 rJ898t r W'~ e @B9./ 7 ~a O o l ? t r -902. { I~ b111 IL , r I~BZ7 .5 ~ 30 820.8 ~0 ( t•?.''~ 9!,•~J. 3.0 r852.V 830.0'1•~"ti.,8B1~.0 i8s. i. t1 z J-t 'i1 I JP-20.1 ei~~~ ealnt. Tr, e64.0 LM sea. 'JP-49 830.0 4> ' ~...BJ , - .'I•:~:^ 17 - JrP-35:1}'►Ft>I 8T8.7 12" 36" 3 36 1 864 8 Ur!7. I.r.. •n!830.0 ~ 1. . ♦ 'T}t f \\~~~i~ B • 972:7' 658.4 ' tr• .T , _ {Xj ! RK E~ .AN JP- 1~tilrs`~-`N.a• I{. ?/t. / i l 4 1 ~e i„i li . r 865.2 I ' `Raf J HIGH 119430 b'xcw J P- 3 ADD 11 }1903 J1L J ?w - 2 Be- 619.8 ItCK 2, ALAN 26 `1. B30 xlt v HILLS nA4K i e L' 1y1e~•'•~~ y,..1. ~C.~rr•~ .1 ".ic14 Io 887-.5 ` rvTTv' ~yPaa-j~p9~•6 `^p7f\` ~J I7V2..7 i :e63:z I 1 KIIIGKMC. -69 864.0 * I PLAZ e.J '~o• _ _ _ ~_.L._. ~ Na. •91420_ ►~~uUP ~3'I~( JR 'e!rP-51 t:AGAN 9 381E,0! If I LP-44 Il95 :03~[ IC., I ~ 76.0 F a l -,Aj~ : •:v 80.0 b- 846.0. LP-43 I:1L_uE t 1953.5 l 851.1 I r.ENCIp^ its 1 A - 853.5 - - PL c I LCXI} I•I AUO. ~J POINT 66. 8:- 1.11 THIR P I~ \•s' !11`3 -1 !yl•~ C3 5" LEXINGT N yy~il~~ •~,~Lp',l•~~~ Pol::Tr~i P2 ~'1~`~ ! .v~ 79.d • ; -1.! ;,i I;rt• I u111T1 ~1 Khif^ LP-61.1 d4.3' 1 900.0 k Y'.1 r T . a WA $01T L T'S _0.6.0 LP P Sri Lnr•E iLP- 1 3. HI11907T0 884.5 3 95 gg 886.0 \ PA 894.0 g 44. FOP =24A ~L>_69_ W0'u, OAK ~1`10~1. :13U., to LP- c`r . ` r~I•j1LP-64•.:, • BerS•.0 • 2 Pgg'-gg5pp~~~,,,.,,,, 1 7~.g ~ ~,.ilf i. 8g90.7. ~.0 - t i 1.~ I t . t V OO:B:,1~ DII;i', 1LP 37 ~8/.~` ! 4 tS~ If~1r1B940? O, I 1 :I j` +9rJOZ 079.6 n• ' '1ap~~, ~ LP 55 81.0 %88631•;rj~ LPr3 !18~0~ gQ - (=s•900.1 . , • . 8 9c'3.0 \ r'.?:~ 899.d_ i P~'8 3' 'I g52. g ~t 7_P.. 'L'P~33.fir.:) v . •-•-~.w.. ~ .t •.FD I-l ~•y~~ ~)~5.-{26 I ~ I 4664. r•r 1 ~6~, ul 89T~5■r`~'•'•r.: , • ,.-.+.1, I I ('~~P P-8435 ! ff LP -38 )8.0 i~- L-68:1 \ 865.0 1. . ' I LP-68 878.5 ~2 • I 656.1 - ' .8574 I f esw ; , r,tir_~v!rw I h FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN -4- 0 55. ^T'._O, _ ,119'; ~f~'':z{ 'S~3!7i0 117 _,1 i =~z• {8" 118 23 0 (1 g78) 54. Z 0 (7- Hl~-Iq :3C% ! 2Q - - v 1 2O tl 12 IB6 5 GPM BOOSTER 1133 33.9%72D k~: 39.0/56.c 5'3.1/75.0 7 109 77 5/ X84.0 20N 2a" t85 2d' . 2Q' 1 I lozo 187 38 23~ 12" !84 55.1474.0 27k Zi23(d34=-7;1/' Ig8 ' r~ 45.C/52.0 1 :2.4/' f 20 2v5; cs^w IB9 33.0 4 MG GROUND'- L, STORAGE I 1 z4 Y 3 _'tli ai?sc wl ~;•rf HWLI059 20" - t21 '^T~ ri•`-~J~~.•~ -T '-r12 it LE FIT, ~ 755/9 .y -,-551E 20{' 203 43(/60.0 F3g* t+ : 5 20 i L 1-"~4.4Z\~- , ir7476, 198 = 3 t - _ ~,23.8/iC7.:Jj`-"-1":.- ss.C l99 - c a ~ •196 `-its=C 274 } 20 = 1 ai.3i '"LG 208 ` ' ' --I t`. Ij 1• ! ,f ICjC c~ 1f _ [6" ^~T K 207 , ~ . , .t .i / -'a-• ~ : a 19 n 4 • ; 2 4' l1w 4M _ 206 -4 33 279 rB ' ,63 3il-31 88.0/108.0 _ - - , a-' _ r ` i, N;Y ' 4- . J 193 - - 6S 2/31 C~ - t - / CITY OF EAGAN Water Distribution System I SUBJECT: REZONING & PRELI IINARY PLAT LAKEVVIEW TRAIL ADDITION APPLICANT: SHAMROCK DEVELOPMENT LOCATION: N 1/2 OF SECTION 36 EXISTING ZONING: A (AGRICULTURAL) DATE OF PUBLIC HEARING: APRIL 28, 1992 DATE OF REPORT: APRIL 20, 1992 COMPILED BY. COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been received by the Community Development Department requesting a Rezoning of 19.5 acres from A (Agricultural) to an R-1 (Single Family) district, and a Preliminary Plat consisting of 37 lots in the north one-half of Section 36. The Comprehensive Land Use Guide Plan designates the proposed area as D-II (Mixed Residential, 0-6 units/acre). The proposal meets the D-II designation. EXISTING CONDITIONS: The location of the proposed plat is south of Todd Avenue (Manor Lake 4th Addition), west of Trunk Highway #3; north of Pond LP-26, and east of Dodd Road. Zoning of the surrounding properties is R-1 (Single Family) to the north (Manor Lake 4th Addition) and to the east across Trunk Highway #3 (Westin Hills Addition). The unplatted property to the south and west across Dodd Road is zoned A (Agricultural). BACKGROUND: Shamrock Development has been developing in the northern suburbs such as Coon Rapids and Brooklyn Park for over 15 years. Lakeview Trail Addition is their first development in Eagan. PROPOSAL: This 19.64 acre plat contains 13.05 acres of single family lots, 1.54 acres of park, 2.56 acres of ponding, and 2.49 acres of street right-of-way. All of the lots exceed the 12,000 sq. ft. minimum size for an R-1 district. The lots range in size from 12,002 sq. ft. to 48,072 sq. ft. with an average lot size of 18,381 sq. ft. The access to the proposed development is from Dodd Road on the west and Manor Drive from the north. No access will be taken from Highway 3. Access for Lots 8 and 9 will be from Todd Avenue. One cul-de-sac is proposed with 13 lots being served from it. The plan shows seven lots backing up to the proposed park to the north and- six lots (Lots 18-23) backing up to Pond LP-26 to the south, all of which are subject to a 50' minimum setback to the Ordinary High Water Mark (OHWM) as set forth in the Shoreland Zoning Code. Lot 10, Block 2, Lot 27, Block 1, along Dodd Road shall have a 40' minimum setback and all lots abutting Trunk Highway 3 shall have a minimum setback of 50'. MnDot requires that the driveway for Lot 9, Block 1, in the NE corner of the development on Todd Avenue shall be located 75' from the east property line abutting Highway 3. Otherwise, all standard setback requirements shall be enforced. PARKS & RECREATION: The Advisory Parks, Recreation, and Natural Resources Commission will be reviewing this request at the May 7, 1992 meeting. Staff's preliminary recommendations to the Commission are that the development be responsible for a cash trails dedication and a parkland dedication as depicted by the Preliminary Plat. Preliminary evaluation of the land dedication indicates compatibility to the adjacent undeveloped parkland providing for a neighborhood park. Staff is evaluating the tree loss proposed as the result of the water quality pond within Lots 18 and 19, Block 1. 1A' GRADING/DRAINAGE/EROSION CONTROL: The proposed development consists of approximately 19 acres of lightly rolling hills that have been used for agricultural purposes in the past. The preliminary grading plan shows that a majority of this site will be disturbed to prepare the streets and house pads for construction. The maximum fill shown is 8 feet and the maximum cut is 10 feet. Storm water drainage from the proposed east-west street (Lakeview Trail) will be directed to two ponds that will be constructed with this development. Proposed Pond LP-26.1, located on Lot 18 and 19 of Block 1, shall have a discharge rate of 1 cfs. Proposed Pond LP-26.1 will outlet to the south to Pond LP-26. Pond LP-26 is a designated ponding area identified in the City's Comprehensive Storm Water Management Plan. Proposed pond LP-26.2 in the northeast comer of the site shall have a maximum discharge rate of 1 cfs and will outlet to the Highway 3 ditch system. This development will be responsible for extending the existing storm sewer that drains Todd Avenue in the Manor Lake 4th Addition to the normal water level of Pond LP-26.2. Also, the landlocked low area on MnDOT right-of-way adjacent to Pond LP-26.2 shall be regraded to allow the low area to drain to the pond. The storm sewer outlet for Pond LP-26 shall be constructed as part of the development of this plat. The storm sewer outlet is a trunk facility that could be constructed by the City if the developer petitions the City to construct this line. Pond LP-26 will outlet to Pond LP- 28, Manor Lake. This development will be responsible for constructing a culvert and catch basins on Lakeview Trail at the intersection of Dodd Road. The culvert and catch basins will convey the runoff from Lakeview Trail to the proposed ditch along Dodd Road. The ditch drains the water to the south to Pond LP-26. The grading along Pond LP-26 shall provide a 30 foot buffer zone to help prevent erosion into Pond LP-26. The grading plan shall show that a 30 foot section along the north edge of Pond LP-26 shall not be disturbed. The development will be responsible for installing and maintaining erosion control measures in accordance with the City's Erosion/Sediment Control Manual Standards. WATER QUALITY: This single-family residential development is located in the upper reach of Drainage Basin L and borders the north shore of Pond LP-26, a Class II 13-acre lake that is intended to have water quality sufficient to support indirect contact recreation. LP-26 will receive stormwater runoff from the majority of the site. Present water quality conditions in LP-26 are not known, but the City's policy is not to allow any degradation in recreational classed water bodies like this one. On-site ponding to meet water quality treatment requirements for this development is both feasible and desirable. In order to meet treatment requirements, two ponds will be constructed on-site. The first, designated LP-26.1, will be located on Lots 18 and 19 and will 4ft receive and treat runoff from 6.3 acres of the site before discharging water into LP-26. The treatment pond shall be a minimum of 0.26 in surface area at the normal water level, 0.68 l acre-feet in volume below the normal water level, and be at least 2.5 feet in average depth. The second pond, designated LP-26.2, will be located in the northeast comer of the site and will intercept and treat runoff from at least 3.5 acres of the Lakeview Trails Addition as well as at least 3 acres of the Manor Lake 3rd and 4th Addition that currently drains untreated to LP-26 through a ditch. Treatment of runoff from the off-site areas in the Manor Lake Addition is required in order to make up for areas within the Lakeview Trails Addition that cannot be intercepted by either pond. Minimum design parameters for Pond LP-26.2 are 0.26 acres in surface area at NWL, 0.68 acre-feet in wet pond volume, and 2.5 feet in average depth at the normal water level. Both ponds must be constructed according to NURP standards and the pond designs must be approved by the City. These recommendations are subject to approval by the Advisory Parks, Recreation and Natural Resources Commission. UTILITIES: Sanitary sewer of sufficient depth and capacity is readily available to serve this development from the north at Manor Drive or Highway 3. A 10 inch sanitary sewer has been provided in Manor Drive and a 15 inch sanitary sewer has been provided along Highway 3 with City Project 621, Manor Lake 4th Addition. The proposed sanitary sewer through this development shall be constructed at minimum grade from Manor Drive to Dodd Road to provide adequate service for future connections to the sanitary sewer from the houses to the south along Dodd Road. The sanitary sewer shall be constructed to Dodd Road with an invert elevation of 913.7 at the Dodd Road/Lakeview Trail intersection. Water main of sufficient pressure and capacity is readily available in Manor Drive and along Highway 3. The preliminary utility plan shows connecting to the existing 6 inch water main . in Manor Drive and extending the water main through this development to Dodd Road. City staff feels that the water main shall be extended along Dodd Road from Lakeview Trail to the existing 16 inch water main on Cliff Road. This extension of the water main will provide a loop around Manor Lake that will provide adequate fire protection and improved water supply to this development, the Manor Lake Additions and the future Weston Hills development. The utility plan shows extension of sewer and water along the west side of Highway 3 to the south property line of this plat to provide service to the undeveloped properties to the south. The developer shall petition the City to construct the water main on Dodd Road from Lakeview Trail to Cliff Road and the sanitary sewer and water lines along the west side of Highway 3 across the east edge of this plat. The petition shall be submitted to the City to allow the public hearings to be held for these projects before this development receives final plat approval from the Council. According to the preliminary utility plan, the sanitary sewer in Lakeview Trail in front of Lot 25 and Lot 26, Block 1, will be approximately 30 feet deep. The 8 inch sanitary sewer and service risers in this area shall be constructed with DIP materials for any depths that will be greater than 26 feet deep. Sanitary sewer and water service has been provided to Lots 8 and 9 of Block 1 of this development from Todd Avenue. STREETS/ACCESS/CIRCULATION: Street access for the proposed development will be provided from Dodd Road which is a 24-foot wide bituminous street with rural sections, and from Manor Drive which will be constructed to a 32-foot wide urban section street under City Project 621. The preliminary street plan does not show any street connections to Highway 3 along the east edge of the plat. Street access to Lots 8 and 9 of Block 1 shall be provided from Todd Avenue in the Manor Lake 4th Addition. EASEMENTS/RIGHT-OF-WAY/PERMITS: This development shall dedicate all easements required for Pond LP-26, Pond LP-26.1 and Pond LP-26.2 to the calculated high water level of the pond. The lots along the east edge of the plat along Highway 3 shall dedicate a 30- foot wide utility easement as shown on the preliminary plat to allow for the extension of sanitary sewer and water along Highway 3. This development shall be responsible for ensuring that all regulatory agency permits (MPCA, MWCC, Mn. Dept. of Health, MnDOT, MnDNR, etc.) are acquired prior to final plat approval. A MnDOT permit will be required to allow the discharge of the outlet from Pond LP-26.2 to be discharged into the Highway 3 ditch system. FINANCIAL OBLIGATION - Lakeview Trail Addition Based upon the study of the financial obligations collected in the past and the uses proposed for the property, the following charges are proposed. The charges are computed using the City's existing fee schedule and connections proposed to be made to the City's utility system based on the submitted plans. Improvement Use Rate Quantity Amount Sanitary Sewer S.F. $720/lot 8 lots $ 5,760 Trunk Water Trunk S.F. 750/lot 36 lots 27,000 Storm Sewer S.F. .069/S.F. 609,728 S.F. 42.071 Trunk Total $74,831 In addition to the above, this parcel has a pending assessment of $25,350 for Project 621. This amount will be pro-rated to the newly created lots as a result of this plat. PRELEWWARY PLAT CONDITIONS FOR LAI~VI>E'VV TRAILS ADDITION_ 7 I. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al,B1,B2,B3,B4,C1,C2,C5,D1,El,F1,G1,&HI 2. Shoreland Zoning setbacks of 50' minimum along Pond LP-26, Lots 18-23, Block 1. 3. Lots abutting Dodd Road shall have a 40' minimum setback. All lots abutting Trunk Highway #3 shall have a 50' minimum setback. The driveway for Lot , Block 1, shall be a minimum of 75' from the Trunk Highway #3 R.O.W. line. 4. No access shall be permitted from Trunk Highway #3 or Dodd Road. 5. Pond LP-26.1 which will be located on Lots 18 and 19 of Block 1 shall provide a maximum discharge rate of 1 cfs, a minimum surface area of 0.13 acres at the normal water level, 0.68 acre-feet of storage volume below the normal water level and at least 2.5 feet in average depth. 6. Pond LP-26.2, which shall be located in the northeast corner of the site, shall provide a -maximum. discharge rate of 1 cfs, a minimum surface area of 0.26 acres at the normal water level, 0.68 acre-feet in wet pond volume and 2.5 feet in average depth at the normal water level. 7. This development will be responsible for extending the storm sewer that drains Todd Avenue in the Manor Lake 4th Addition to the NWL of Pond LP-26.2. 8. The grading plan shall be revised to show a 30 foot buffer zone along the north edge of Pond LP-26 that shall not be disturbed. 9. The sanitary sewer through this development from Manor Drive to Dodd Road shall be constructed at minimum grade to provide an invert elevation of 913.7 at the Dodd Road/Lakeview Trail intersection. 10. The developer shall petition the City to construct water main on Dodd Road from Lakeview Trail to the existing 16" water main on Cliff Road and to construct sanitary sewer and water lines along the west side of Highway 3 from Todd Avenue to the south property line of this plat. 11. The proposed lots abutting Highway 3 shall dedicate a 30 foot wide utility easement on the final plat to allow for the extension of sanitary'sewer and water main along Highway 3. I 12. The development is responsible for providing or financially guaranteeing the acquisition cost of the easements required for Ponds LP-26, LP-26.1, and LP-26.2. Pond LP-26.1 which will be located on Lots 16 and 17 of Block 1 shall provide a maximum discharge rate of 1 cfs, a minimum surface area of 0.13 acres at the normal water level, 0.68 acre-feet of storage volume below the normal water level and at least 2.5 feet in average depth. 13. Pond LP-26.2, which shall be located in the northeast corner of the site, shall provide a maximum discharge rate of 1 cfs, a minimum surface area of 0.26 acres at the normal water level, 0.68 acre-feet in wet pond volume and 2.5 feet in average depth at the normal water level. 14. This development will be responsible for extending the storm sewer that drains Todd Avenue in the Manor Lake 4th Addition to the NWL of Pond LP-26.2. 15. The grading plan shall be revised to show a 30 foot buffer zone along the north edge of Pond LP-26 that shall not be disturbed. 16. The sanitary sewer through this development from Manor Drive_ to Dodd Road shall be constructed at minimum grade to provide an invert elevation of 913.7 at the Dodd Road/Lakeview Trail intersection. 17. The developer shall petition the City to construct water main on Dodd Road from Lakeview Trail to the existing 16" water main on Cliff Road and to construct sanitary sewer and water lines along the west side of Highway 3 from Todd Avenue to the south property line of this plat. 18. The proposed lots abutting Highway 3 shall dedicate a 30 foot wide utility easement on the final plat to allow for the extension of sanitary sewer and water main along Highway 3. 19. The development is responsible for providing or financially guaranteeing the acquisition cost of the easements required for Ponds LP-26, LP-26.1, and LP-26.2. STANDARD CONDITIONS OF PLAT APPROVAL A. Financial obligations t 1. This development shall accept its additional financial obligations as defined in the staff's report in accordance with the final-plat dimensions and the rates in effect at the time of final plat approval. B. Easements and Rights-of-Way 1. This development shall dedicate 10' drainage and utility easements centered over all common lot lines and adjacent to private property or public right-of-way. 2. This development shall dedicate, provide, or financially guarantee the acquisition costs of additional drainage, ponding, and utility easements as required by the alignment, depth, and storage capacity of all required public utilities and streets located beyond the boundaries of this plat or outside of dedicated public right-of-way as necessary to service this development or accommodate it. 3. This development shall dedicate all public right-of-way and temporary slope easements for ultimate development of adjacent roadways as required by the appropriate jurisdictional agency. 4. This development shall dedicate adequate drainage and ponding easements to incorporate the required high water elevation necessitated by City storm water storage volume requirements. C. Plans and specifications 1. All public streets and utilities necessary to provide service to this development shall be designed by a registered professional engineer in accordance with City codes, engineering standards, guidelines and policies. 2. A detailed grading, drainage, erosion, and sediment control plan must be prepared in accordance with current City standards prior to final plat approval. 3. This development shall insure that all temporary dead end public streets shall have a cul-de-sac constructed in accordance with City engineering standards. STANDARD CONDITIONS OF PLAT APPROVAL PAGE TWO 4. A detailed landscape plan shall be submitted on the proposed grading plan. The financial guarantee shall be included in the Development Contract and not be released until one year after the date of installation. 5. All internal public and. private streets shall be constructed within the required right-of-way in accordance with City Code and engineering standards. D. Public Improvements 1. If any public improvements are to be installed under a City contract, the appropriate project must be approved at a formal public hearing by Council action prior to final plat approval. E. Permits 1. This development shall be responsible for the acquisition of all regulatory agency permits in the time frame required by the affected agency.. F. Parks and Trails Dedication 1. This development shall fulfill its parks dedication requirements as recommended by the Advisory Parks and Recreation Commission and approved by Council action. G. Water Quality Dedication 1. This development shall be responsible for providing a cash dedication in addition to/in lieu of ponding requirements in accordance with the criteria identified in the City's Water Quality Management Plan. H. Other 2. All standard platting and zoning conditions shall be adhered to unless specifically granted a variance by Council action. Advisory Planning Commission City Council Approved: _ August 25, 1987 September 15, 1987 Revised: July 10., 1990 plataprv.con LTS *2 Lakeview Trail Addition CAR rlWV yp~~ All NW c n I' r LOCATION QPP A XZ 1 Ipll ~ ~ 1 ST „ GHm -GIIN S SE is: I•Vn•: u10~ '1.1 .f ZONING I A A PK~ 1 T T- i. LI' i r rvl~+I. r. n q-- PK A L4 n 2J w c) 1 1 McDonotlgh l~ Lake GUIDE PLAN j s La}: D-I 1 •I sh- e 0 (C J ela +ISM II1SY n14 19e c~.► 6 w as If j; I, i + N • L i ~ i M a N , z s` •t zi~l 1~1. a a,, I a :sl ; ~ f ~ IIFr ~ p ~ 1 a ' i ~ - I eoeu° V / ° .1 6 I s' s I~ a Z ° N ~ O 1 = a Za I ° I1 L7N ° + 1 ' I o s ij l< .i zu a iii r ,i rig ,I 0 a s . ,0 PARK S Z ~ •1 ~ ~ Y« 71, A, „b w« _ r- .r 13 . y 12 tS m.., i 4, Y• 21 jt SITE DATA 1 , ~ S - ' S i ~•t :w w•:: in a'1 e.1 .....-a u:i. r.r .u.m r. rt► In.M w.l MAr r. n. } n .w. ~wY- .•,M1 Y. n. ~ _ 1 ►tt •IItIItb m w I `-~M ti4 U"L N••Mlt•r v Kill WAIS t 6 fd -F A r _ StlTt -06 • - - - ..w •~-+~w+~ w►/ LAKEVItW TRAIL ADD. PLAT .a+3 4..1. P~r_FivFn Arc 2 7 1J,j1 i IfI~ I I I,I ~ ~ ~ I I ~ , 10 ~,'II i. - - • i ~ •t ~ t^ \ it I fin/ 71 O I / I :I / K`~ j' ~I I A R -R R - - •L I' `may i+lI II i. 27 I I its r \ u I1S R I I r / 14 13 '12 V was a mn.euxeJ ~ v~ / /A m POND 1F-26 LEGAL DESCRIPTION ~ _ _ • - "mow GRAPHIC SCAit ,~.~Z • jf - ~ ••~~~,r " r..._ ~ oM• SHMiOU D[KLO.aIN• MRI /N r jailLAKOVIEEW TRAIL ADD. OAADINO PLAN ! • 4 .a 'iEl ss=:= i :;i: iii S EL.t ° Y t Rf ~ \ C 1i i~l r f 7 ► :i a rt ~ i I ~ .s e its t ' Gd - _ l l l / TJDD M'ENUE I I I I / I I I / OVTICT A N' WtlOf A r~ \ '''AMY M. . . + 0 0 9 t' ••4 '•'AYirA O O' i A J ' lb- I •r•.•.•. -L _ ' .-mss ••;,r.. I~f 1. r FINANCIAL OBLIGATION 1 ~ - ` LEGEND • SANITARY SEWER TRUNK WATER TRUNK •1•.w I 'GYM STORM SEWER TRUNK A 04~ ►IR lAVi PLA LAKNttW TRAP. ADD. T 4 4 +r ;..',•,'I,nr(~-►,K ( (~.11t11 rf.r~t,(f 1 tJN-bd Orroc I +v.v r':)I!I ('966.5 ! ~,`ntr.'. r a III 1 tj7~- ` 1 824.1' 862.0 J Tlur'?. ; .I `I~,~/~!` i I t»I. 826.0 877.0 7~ I ~rL58 . 3~".:' L•' (.:i` 1. j I i 1~•'•"' ' 8 h l •~I / h.l + .Y~~ • ~ l~ ~+f7 nnnf I( Of .1 I 't ,t I i I I ~I LP-611 69 q l 11 ff / 69. 900.0 ! ( 1' ! , 7.O P-48' t1i_r;:, ~I~ 1 891.3 LAKE ` 16.2 r ---894.0 /'g 4\ f3 IAttt fiR/A.O f per., I LP- I I fs g9 - III". •t, r (rife ,I i,:,.1 % ' r I II I + 'rill;: + .87$8,t 1 [ ZI'i8'~t7.7:'/ LP-37 '1884. ;-,I, F) 894.0 879.6 "d \9d77/ LP-67 AA/.o „ I J~ ~•m L~'33 ~f~( 9 b.'O.1 ' LP ~F7 - 991824.5A I LF?-3~ l.l~-I *~,88~.3r~ LPYtl~i!L+ .~-It P 30 d LP-~ 'I"870.5 , - ,87 ..p p9UO vlt~ " I L 9ti: , I 9086 08.3 1 /O /3.0 86'. 18AOU~1;^.. 897...0 LP-.33.1xa kl~rti g .4 -29 r 9J7,5 1 t9~ , l 12.0 J L864i n ~y v- P 45 V : ' 10.7 ! i 38 ( 1 I i!" 9/5.5 ,r L '-Z5 P-26 ~ 9 4.7 920;2 ' LP-21; LP-24 V9P7.0 ~I 903902..0 5 # 883.2 LP- 27 BB6.0 :r i2•~ 922.0 ri 925.4 LP-19 900.2 Zr,p ,r I r'I 903.0 ~,~,n / I• I qr 1 T f., '0. 7 LP-22 1901.0 12 ? L 23 1904.0 / ' 9$0.3 i LP-661 / ' LP-17•- 9 2 8.7 93 0 t ~ }yy - ell I FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN / SUBJECT: REZONING & PRELIMINARY PLAT (DEERWOOD SCHOOL 2ND ADDITION) APPLICANT: INDEPENDENT SCHOOL DISTRICT 196 LOCATION: SE QUARTER SECTION 21 EXISTING ZONING: AGRICULTURAL (AG) DATE OF PUBLIC HEARING: APRIL 28, 1992 DATE OF REPORT: APRIL 21, 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been submitted by Independent School District #196 requesting a Rezoning of approximately 23.5 Agricultural acres to Public Facility (PF) and a Preliminary Plat consisting of one lot for a middle school located south of Deerwood Drive, just west of Deerwood Elementary School. The City's Comprehensive Guide Plan designates this area PF and therefore no amendment is necessary. EXISTING CONDITIONS: This site has some severe slopes and heavily-wooded areas around a large depression adjacent to Deerwood Drive that will be filled and converted into a ballfield. The remainder of the site is rolling grassland. Due to the school district's athletic field needs and the size of the site, no existing trees will be saved. There is a house on-site that will be removed, or destroyed. Any well or septic systems on-site shall be abandoned per Dakota County regulations. Adjacent land uses include undeveloped Agriculturally-zoned property to the south, west and north (across Deerwood Drive) and Deerwood Elementary School to the east. The adjacent Agricultural property is guided D-II (Mixed Residential, 0-6 units/acre). SITE PLAN: This site abuts Deerwood Drive and will take access from the existing private drive currently serving Deerwood Elementary School. The site plan provides for a future second access point at the SW corner of the site to an anticipated Thomas Lake Road extension to Deerwood Drive. The three-story 190,000 sq. ft. building is located on the south half of the site and is attached to the existing elementary school and will be complementary in appearance. Building elevation drawings have not been finalized at this time. 1401 The site plan provides a 24.. space bus staging area, as well as a 154 space staff/visitor parking area. The plan also shows the layout for four tennis courts, three softball fields, two baseball diamonds, four football/soccer fields, and a running track. The school district anticipates completing site grading and turf reseeding by the fall of this year. A 100' wide Williams Brothers pipeline easement bisects the site, and therefore they will also review the grading and site plan. COMN ENTS: The new middle school will accommodate 1200 students and there will be 90 employees, of which 60 will be teachers. There will be a 50-minute gap between the elementary and middle school start and finishing times to avoid any conflict in the bus loading/unloading areas. The school district is planning on a Fall 1994 occupancy at' which time all fields will be fully operational. PARKS & RECREATION: Parks and Recreation staff will be recommending a cash trailways dedication to the Commission at the May 7, 1992 Advisory Parks and Natural Resources Commission meeting. r - GRADINGIDRAINAGE f EROSION CONTROL: The grading proposed at this site will require cuts of 30 feet and fills of up to 36 feet located in the westerly one-half of the site. The largest fill area is located in the northwest comer of the site where a 0.4 acre wetland is proposed to be filled. The low area is currently drained through a 12" storm sewer that then flows into a 27" storm sewer flowing easterly in Duckwood Drive. The 12" storm sewer outlet pipe shall be permanently bulkheaded prior to grading operations. This northwest low area is surrounded by two acres of oaks and other trees that are proposed to be completely removed during the filling of the low area to prepare the area for ballfields. Approximately 7.4 acres of the northwesterly corner of the site will drain overland onto Duckwood Drive and into the Duckwood Drive storm sewer. The central and northeasterly portions of the site which include approximately 21 acres from both the new middle school site and the existing elementary site is proposed to drain into a storm water retention pond to be constructed in the northeast comer of the site. Preliminary review of this pond shows that to handle a 100 year storm event with a outlet capacity of 3 cfs, then the pond shall provide 3.5 acre feet of storage volume from the NWL to the HWL. The standing water portion of the pond shall be located west of the existing 36" trunk storm sewer and 33" trunk sanitary sewer lines. The preliminary grading plan shows that grading will be performed on adjacent property along the south property line. This area contains some mature trees that will be removed with the grading. The existing parking lot of the elementary school and the proposed parking lot along the south property line south of the middle school is proposed to drain to the existing 27" storm sewer located in the southeast comer of the site. The 27" storm sewer serves as the outlet for Pond BP-4 and the line has a capacity of 20 cfs. The Storm Water Management Plan shows that the maximum discharge rate for Pond BP-4 is 20 cfs. The parking lot areas that are proposed to drain into the existing 27" storm sewer contains 6.0 acres and they will produce a 5 year runoff flow of 21 cfs. Staff recommends that the storm sewer layout in the southeast corner of the site be revised to prevent overburdening of the existing 27" storm sewer. A Williams Bros. pipeline is located through the center of the site. A minimal amount of grading is shown along the pipeline. The development will be responsible for installing and maintaining erosion control measures in accordance with the City's Erosion/Sediment Control Manual Standards. WATER QUALITY: This development is located in the lower reach of drainage basin B about 0.5 miles up-drainage of Blackhawk Lake. After traveling through three small treatment basins, the runoff will reach Blackhawk Lake which is one of six Class I water bodies in the City intended to have water quality sufficient to support direct contact recreation. Ponding is both feasible and desirable for this development because of its relatively close proximity to Blackhawk Lake. A treatment pond will be located in the northeast part of the school grounds just south of Deerwood Drive and east of the entrance road in a shallow depression. Because drainage from the proposed middle school development that cannot be intercepted by the pond, the existing storm sewer system that serves the elementary shall be re-routed to the proposed pond. The re-route of the system will make possible the interception by the treatment pond of drainage from about 7 acres of the existing elementary school site. Treatment requirements for the site will be met by the construction of a treatment basin with a surface area of 0.55 acres at the NWL and a minimum volume below normal water level of 2.1 acre-feet. The pond will be located and the storm sewer constructed to intercept runoff from 7 acres of the elementary school site and 14 acres of the proposed middle school site. NURP standards will be used in the design of the pond and the design must be approved by the City prior to construction. As required under the Wetlands Conservation Act, the applicant is also requesting approval from the City to fill 0.4 acres of wetlands on-site. A recommendation on whether to approve the request is pending submission of appropriate information from the applicant. If approval is granted, replacement of the wetland surface area will be required on an acre- for-acre basis. These recommendations are subject to approval by the Advisory Parks, Recreation, and Natural Resources Commission. UTILITIES: The preliminary utility plan proposes to loop an 8" DIP watermain from the existing watermain south of the existing school around the west side of the new building and back to the existing 8" watermain within the existing service drive. This 8" watermain will provide an adequate water supply and fire protection for the proposed school. City staff recommends that the 8" water main system be a privately maintained system on the elementary and middle school site since the system serves one user. An existing 18" DIP water main has been stubbed to the south side of Deerwood Drive. The 18" water main needs to be extended to the west along the north property line of this site to provide water service to property to the west. Sanitary sewer service of sufficient size, depth and capacity is readily available to serve the proposed middle school. A 6" sanitary sewer service will connect to a new 8" PVC sanitary sewer constructed along the south edge of the project to serve the proposed middle school. The 8" sanitary sewer is shown to connect to an existing 27" sanitary sewer along the east edge of the property. However, the 27" line is 30 feet deep and adjacent to a single family lot and the construction might disturb the adjacent property. STREETS/ACCESS/CIRCULATION: Access to the new middle school will be from the south end of the existing service drive of the existing elementary school and both schools will thereby share the same access to Deerwood Drive. The City's Comprehensive Guide Plan shows the construction of a neighborhood collector street along the west edge of the middle school site. The street would be called either Johnny Cake Ridge Road or Thomas Lake Road depending on the alignment. The street is proposed to connect Diffley Road with Deerwood Drive. If the middle school development determines that a second access is necessary, then the developer should petition the City to construct the neighborhood collector street. Access to the future proposed Thomas Lake Road at the southwest comer of the site has been taken into consideration on the site plan, and'the development will be responsible to connect to Thomas Lake Road when the street is constructed. EASEMENTSMIGHT-OF-WAY&ERMITS: A ponding easement shall be dedicated over the proposed stormwater retention pond in the northeast comer of the project. Additional utility easement will be necessary for the new manhole to be constructed on the existing 27" sanitary sewer in the southeast corner of the elementary school site. Grading of slopes on the south edge of the site will require slope easements from the adjacent property owners. This development shall be responsible for ensuring that all, regulatory agency permits are acquired in a timely manner. The site grading and construction of the storm sewer line in the easement of the Williams Brothers Pipeline will require a permit to be obtained from Williams Brothers. A 40' half right-of-way shall be dedicated along the west property line to accommodate the future Collector street previously mentioned. If this Collector street is relocated further to the west to accommodate the school's site plan, then the applicant shall acquire or commit to financially participate in an equivalent future right-of-way acquisition. FINANCIAL OBLIGATION - Deerwood School 2nd Addition i Based upon the study of the financial obligations collected in the past and the uses proposed for the property, the following charges are proposed. The charges are computed using the City's existing fee schedule and connections proposed to be made to the City's utility system based on the submitted plans. Improvement Use Rate Quantity Amount Water Trunk P.F. $1,565/Acre .9 Acre $ 1,408 Lateral Benefit S.F. 15.30/ff 183 ff 2,800 Water Lateral Benefit C/I 9.95/ff 890.87 ff 8,864 Water Storm Sewer C/I .035/S.F. 1,022,789 35,798 Trunk Storm Sewer P.F. 21.70/ff 183 ff 3,971 Lateral Trunk Water Availability P.F. 2,470/Acre 23.48 Acre 57,996 Charge Lateral Benefit P.F. 19.55/ff 400 ff 7.820 Storm Sewer Total $118,657 There are no pending assessments on the properties proposed for platting. There are levied assessments with a balance of $14,308 payable on the properties proposed for platting. assessments will be apportioned to the developed lots and remainder of undeveloped parcels. I CONDITIONS OF PRELE W NARY PLAT APPROVAL FOR DEERWOOD SCHOOL 1. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al,B1,B2,B3,B4,C1,C2,C4,El,F1,G1,&Hl 2. The existing well and septic systems shall be abandoned per Dakota County regulations. 3. A second access shall be provided when Thomas Lake Road is extended to Deerwood Drive. 4. The proposed pond to be located in the northeast corner of the elementary school site shall provide a maximum discharge rate of 3 cfs, a pond storage volume of 3.5 acre feet, a surface area at the NWL of 0.55 acres and a minimum wet pond volume of 2.1 acre feet. 5. The storm sewer layout in the southeast corner of the site shall be revised to prevent overburdening of the existing 27' storm sewer that drains Pond BP-4. 6. If filling of the 0.4 acre wetland located in the northwest comer of the site is approved by the appropriate agencies, then replacement of the wetland surface area will be required on an acre-for-acre basis. 7. This development will be responsible for extending their driveway access to Thomas Lake Road/Johnny Cake Ridge Road extension when this neighborhood collector street is constructed. 8. The utility system on the elementary and middle school site shall be a privately maintained system. 9. The standing water portion of the storm water treatment pond to be located in the northeast corner of the site shall be west of the existing 36" trunk storm sewer and 33" trunk sanitary sewer lines. 10. This development shall dedicate a 40' half right-of-way adjacent to its west property line or commit to financially participate in an equivalent future right-of- way acquisition for the extension of Thomas Lake/Johnny Cake Ridge Road. 11. This development shall agree to pay for one-half the street grading, drainage, trailway and surfacing costs for the future extension of Thomas Lake/Johnny Cake Ridge Road extension from their south boundary line to Deerwood Drive. STANDARD CONDITIONS OF PLAT APPROVAL A. Financial Obligations f 1. This development shall accept its additional financial obligations as defined in the staff's report in accordance with the final plat dimensions and the rates in effect at the time of final plat approval. B. Easements and Rights-of-Ray 1. This development shall dedicate 10' drainage and utility easements centered over all common lot lines and adjacent to private property or public right-of-way. 2. This development shall dedicate, provide, or financially guarantee the acquisition costs of additional drainage, ponding, and utility easements as required by the alignment, depth, and storage capacity of all required public utilities and streets located beyond the boundaries of this plat or outside of dedicated public right-of-way as necessary to service this development or accommodate it. 3. This development shall dedicate all public right-of-way and temporary slope easements for ultimate development of adjacent roadways as required by the appropriate jurisdictional agency. 4. This development' shall dedicate adequate drainage and ponding easements to incorporate the required high water elevation necessitated by City storm water storage volume requirements. C. Plans and Specifications 1. All public streets and utilities necessary to provide service to this development shall be designed by a registered professional engineer in accordance with City codes, engineering standards, guidelines and policies. 2. A detailed grading, drainage, erosion, and sediment control plan must be prepared in accordance with current City standards prior to final plat approval. 3. This development shall insure that all temporary dead end public streets shall have a cul-de-sac constructed in accordance with City engineering standards. STANDARD CONDITIONS OF PLAT APPROVAL PAGE TWO 4. A detailed landscape plan shall be submitted on the proposed grading plan. The financial guarantee shall be included in the Development Contract and not be released until one year after the date of installation. 5. All internal public and: private streets shall be constructed within the required right-of-way in accordance with City Code and engineering standards. D. Public Improvements 1. If any public improvements are to be installed under a City contract, the appropriate project must be approved at a formal public hearing by Council action prior to final plat approval. E. Permits 1. This development shall be responsible for the acquisition of all regulatory agency permits in the time frame required by the affected agency.. F. Parks and Trails Dedication 1. This development shall fulfill its parks dedication requirements as recommended by the Advisory Parks and Recreation,Commission and approved by Council action. G. Water Ouality Dedication 1. This development shall be responsible for providing a cash dedication in addition to/in lieu of ponding requirements in accordance with the criteria identified in the City's Water Quality Management Plan. H. Other 1. All standard platting and toning conditions shall be adhered to unless specifically granted a variance by Council action. Advisory Planning Commission City Council Approved: August 25, 1987 September 15, 1987 Revised: July 10:, 1990 plataprv.con LTS #2 f~ »nws/` w i ~ I' cen,cn wlrmr-r n-r fir rt - ~/vA+AJ~ I -1rr.sstr 5,x/ i ~ "If C. n„[ / .NrL 11 1 nol O r 1^ + f1 ` / rnnl LOCATION 4Rk Sw OEF 1 n `~1 v w { .1 Anec All rt N. 70 1 NEIME fT, y l n Re I _ / ~ j 1 + r ASifA JLL~ _ X01 St rt U a N + irv = I • "1 rl 'IF MS Is S [qr 1 RAI SA Nw A ' !al a I i t - z•; parCoA "II E S IIJ i >r+--mss _ ~ - . f ' - ZONING r~.,(yY/1 1.1411/..Ir.q . 1G 4 ' +s 1< r . pp :1 ~I A H , r, r r' R "R -4 ri, 1 , 041 (M ' i j ~ D•1 GUIDE PLAN D-n rF PF o•n p 0-11 Mill D-n1 RB PF NB NB 0.111 / RB P PF D•III ~ D-111 - _ i ~ D-tll , ~ ~ f J D-11 0-11 PF ell Nit M 4 \ ` h, Ell t t ! ~ C Jill ~101r'II lit ~T ~ M.Ie i i~ ~io~y.e Iw ' ,j• ~1 'J. i ~ 1 1 lE~ 1 ~ ~tl 1 1 1 (t~4~ I t • I t , .7 , i 1r P ~ ~ ! c 1 5t 1 T~J" llp : 11 z I I : 1 a t-------~ 1 i --'~=-r--------- - , 'yam` 11 ! ! 6 i i i► ! 11 : 1 j~ r I i I J. 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AP-7.1 8-s 92405 Q/ 886.5 874.2 _ Bp.2. { r,!ty''' cs .T(Fu ►,t'~~.~•l!r t ! ,`]7'•920.5 j P_ 2 i 12~ 9272 4 ` B 6 P-f 3.) +I ! 923.,5, 924.5 a f to 86$•? 1 I I 1 BP-!5 1 a )r t; L a r. x!864 l 1 i 'T Tf J~ B4 C 5 A M 9QQ.0 Ln..11{H - B~J~.~1 _TJ 1.- J I ' -k _BP~24 CJr ~f T BP S wJr~!, (ITf7~'v AP-51 920.0 g r~4. !LP 4i ! 892.3 93 .O ItATFCf-~, g . f~ •t , + ,8'46.0' 1 8994gp-.2$ -BJItI 1r• ..h,~nYr909.~ ~ I~ ~.t+. eFd.~! i~ j I I oaK~ / e 7.t '~Yfl;P=42 ; i :1 i `l I ,mil 81 5 :Il N- ~/~~BQ-23 FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN15i