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03/05/1992 - Advisory Parks & Recreation Commission x MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: KEN VRAA, DIRECTOR OF PARKS & RECREATION DATE: MARCH 3, 1992 RE: THURSDAY, MARCH 5, 1992 - ADVISORY COMMISSION MEETING The regular meeting of the Advisory Commission is scheduled to begin at 7:00 P.M., at the Eagan Municipal Center. The first item of business on the agenda is the approval of the minutes from the meeting of January 9, 1992. This is followed by the consent agenda for Town Centre 70 -12th Addition, which is to provide for an Applebee's Restaurant. Within the development proposals, there are three (3) items for the Advisory Commission. As always, staff has provided you with memorandums concerning these three development proposals, and also included is the Community Development Department's planning packet for background information. NEW BUSINESS Staff has asked the Advisory Commission to pass a resolution that is important to the outdoor recreation grants program. The City of Eagan, for the last ten years has been a recipient of nearly $1 Million in grants for parks and recreation through this program. Staffs memo should explain to you the purpose of the resolution and the Commission's support. PARKS DEVELOPMENT There are no items under "Parks Development" at this time. WATER QUALITY The Water Quality Coordinator, Rich Brasch, has provided you with a memorandum on the resolution of water quality for the Weston Hills development. It would be appropriate for the Advisory Commission to review this issue once again and make a recommendation. t ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION PAGE TWO MARCH 3, 1992 OTHER BUSINESS AND REPORTS There are only two items under "Other Business and Reports". Enclosed are the Department Happenings and information on the Swimming Pool/Ice Arena. The Council has now approved proceeding towards a bond referendum. One item of note, is that the City Council anticipates having a joint workshop session with the Advisory Commission, along with the planning commissions this month. Apparently, March 31st has been targeted as a meeting date. Staff will provide additional information concerning this at the Commission meeting. As always, if members of the Commission are unable to attend, please contact Cherryl, to indicate that you will not be able to be there. Respectfull y b 'tied, Ken Director of Parks and Recreation KV/bls o~ Y AGENDA ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION EAGAN, MINNESOTA Thursday, March 5, 1992 7:00 PM Eagan Municipal Center A. 7:00 P.M. Regular Meeting - Eagan Municipal Center B. Call to Order and Pledge of Allegiance C. Approval of Agenda D. Approval of Minutes of Regular Meeting of February 6, 1992 E. Visitors to be Heard F. Consent Agenda (1) Town Centre 70 12th Addition - Midwest Restaurant Associates G. Development Proposals (1) Independent School District 196 (2) Deerwood Ponds - Clarence Kemp and Twin Cities Properties (3) Meghans Addition - Pulsar, Inc. H. Old Business 1. New Business (1) Resolution Supporting State Outdoor Recreation Grant Program J. Parks Development K. Water Quality (1) Resolution on Water Quality - Weston Hills L Other Business and Reports (1) Department Happenings (2) Ice Arena/Swimming Pool Update (3) Joint Meeting with Council M. Round Table N. Adjournment 3. MINUTES OF A REGULAR MEETING OF THE ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION EAGAN, MINNESOTA FEBRUARY 6,1992 A regular meeting of the Advisory Parks, Recreation and Natural Resources Commission was called to order at 7:00 p.m. on Thursday, February 6, 1992 with the following Commission Members present: Erin ipsen, Jack Johnson, Jonathan Widem, Ted Billy, Deborah Johnson, Dan Mooradian, Lee Markel[ and Kevin Knight. 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; Paula Nowariak, Recreation Supervisor; Jon Oyanagi, Recreation Supervisor and Cherryl Mesko, Secretary. INTRODUCTION OF NEW MEMBERS Director Vraa introduced David Mooradian, Jonathan Widem, Erin Ipsen and Kevin Knight (alternate) as the newly appointed Commission Members and welcomed them to the Advisory Parks, Recreation and Natural Resources Commission. APPRECIATION AWARD - GEORGE KUBIK Director Vraa introduced George Kubik who has been a member of the Commission for 9 years, serving 4 of those years as Chairman. His term expired after serving three consecutive three-year terms which is the time limit for individuals to serve on an advisory commission. Ken noted that during George's tenure he played an instrumental part in developing the Park System Plan, helped with the successful park bond of 1984 which has resulted in the development of many of Eagan's parks and has been a consistent leader in providing for quality parks within the City of Eagan. After presenting George with a recognition plaque and gift from the Parks and Recreation Department, Ken noted that George would be greatly missed. George Kubik thanked the Commission and staff for their recognition and kind words. He continued that although he will miss being a part of the Commission, they will have the opportunity to work with a very skilled and qualified staff which will make the Commission's work easier. George suggested that Commission Members use staff's talents wisely, wished them good luck, and asked them to have fun and experiment. Jack Johnson thanked George, on behalf of the Commission, for his guidance, help and teaching of new Commission Members. He also stated that George's guidance will be greatly missed. AGENDA Ted Billy moved, Erin Ipsen seconded with all members voting in favor to accept the agenda as presented. MINUTES OF REGULAR MEETING OF JANUARY 9, 1992 Page 3, Paragraph 5, Sentence 2 should read, "...off-road trail would provide more safety.....". Deborah Johnson moved, Lee Markell seconded with all members voting in favor to accept the minutes as amended. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 2 COMMISSION ORGANIZATION After describing the responsibilities for each office and explaining the voting procedure which included initialing ballots, Director Vraa opened nominations for the Chairperson. Deborah Johnson nominated and Dan Mooradian seconded the nomination of Ted Billy. Ted Billy nominated and Lee Markell seconded the nomination of Jack Johnson. Erin Ipsen moved, Lee Markell seconded the motion to dose the nominations. Written ballots were submitted and counted naming Jack Johnson as Chairperson. Director Vraa opened nominations for Vice-Chair. Dan Mooradian nominated and Lee Markell seconded the nomination of Ted Billy. Ted Billy nominated and Jack Johnson seconded the nomination of Lee Markell. Erin Ipsen moved, Ted Billy seconded the motion to close the nominations. Written ballots were submitted and counted naming Ted Billy as Vice-Chair. Director Vraa opened nomination for Secretary. Jack Johnson nominated and Jonathan Widem seconded the nomination of Lee Markell. Ted Billy moved, Jack Johnson seconded the motion to close the nominations and cast a unanimous vote for Lee Markell. The motion was carried and Lee Markell was named Secretary. Director Vraa then turned the meeting over to Chairman Jack Johnson for the appointment of members to the various standing sub-committees. Mr. Vraa noted that those sub-committees were Recreation, Development/Finance and Park Naming. After further discussion, Ted Billy moved that all Commission Members be appointed to all three sub-committees and should the need arise, Ad-Hoc committees would be formed. Lee Markell seconded the motion with all members voting in favor. Lee Markell moved, Dan Mooradian seconded the motion with all members voting in favor to set the regular Advisory Parks, Recreation and Natural Resources Commission meetings for the following dates: March 5, April 2, May 7, June 4, July 2, August 6, September 3, October 1, November 5, December 3, 1992 and January 7, 1993. The motion continued that the meetings will be held at 7 P.M. except in the summer months when the times may change to accommodate park tours prior to Commission meetings. CONSENT AGENDA Deborah Johnson moved, Ted Billy seconded the motion with all members voting in favor to make the following recommendation to the City Council: 1. TOWN CENTRE 10010TH ADDITION - ROVICK REALTY. This proposal shall be required to construct a 6 foot wide concrete sidewalk along Town Centre Drive. This proposal shall be subject to a cash dedication of $14,691 to satisfy water quality requirements. WESTON HILLS ADDITION - LYMAN DEVELOPMENT Project Planner Mike Ridley introduced this item as a request for rezoning of 63.64 acres from Agricultural to R-1 (Single Family) and a Preliminary Plat of 131 lots and six outlots. He continued that this proposed plat is located south of County Road 32 (Cliff Road) and east of Trunk Highway 3. Landscape Architect /Parks Planner Steve Sullivan reminded the Commission that they had previously reviewed this proposal at their January 9th meeting and passed a motion to recommend the acquisition of a park south of this development within Park Service 36E. The Commission also indicated a preference for a cash dedication in lieu of parkland dedication for the proposed Weston Hills development. Steve continued that the Weston Hills plat consumes approximately one-third of Park Service Area 36E and that there appears to be a need for a park south of this development. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 3 Water Resources Coordinator Rich Brasch addressed the water quality issues relative to this proposal. The first is what requirement the developer must meet to satisfy water quality treatment standards for a new development as outlined in the city water quality management plan. The second is a concern expressed by residents who live adjacent to the proposed development regarding the effect of the development on the volume of runoff to Pond LP-27. Rich noted that some of the residents south of this area were present and may want to address the Commission. Mr. Brasch continued that maximum protection of recreational class lakes off-site will require construction of an on-sfte pond to treat runoff from the development, especially runoff from paved surfaces. After having met with the developers it appears that this is a viable option and the developer is, in fact, exceeding the size of the pond requested. The issue of overland drainage to Pond LP-27 which lies along the southern border of the development site continues to be an issue particularly to the residents adjacent to the pond stated Brasch. The historical behavior of the pond described by residents indicates that the pond is very dependent on overland runoff from its current natural drainage area of about 37 acres to maintain storage. Accounts also indicate that even in the present condition, the pond level falls rapidly in response to seasonal drought conditions. With the current site plan the drainage area of LP-27 would be decreased to about 18.5 acres and would decrease by about 33% the average annual runoff to the pond. Mr. Brasch outlined three options that might be considered to help remedy this situation. The first option would be to divert runoff from a portion of the development directly into the pond to restore the runoff contribution. The main disadvantage of this option would be that the stormwater would be untreated going into LP-27 and subsequent downstream higher priority lakes. The advantage of this option would be that the pre-development volume of runoff to LP-27 could be restored. Option 2 would be to divert treated water from the constructed on-site pond and route that water to the south into LP-27 instead of to the north toward Cliff Road. Advantages to this option include diverting only treated water to LP-27 and the drainage basin would exceed what it is in the natural condition. With this scenario, an inlet and outlet would need to be constructed in LP-27 to prevent local flooding problems. The cost for constructing the inlet would be the developer's responsibility while construction of an outlet to route high flows under Hwy 3 to LP-26 would be the City's responsibility. In addition, a pond easement would need to be granted to the City for all of LP-27 by all shoreland owners. Option 3 makes no change in the proposed site plan to route all drainage from the paved surfaces away from LP-27 to the north toward Cliff Road. This option would satisfy basic water quality treatment requirements for the development but would not sustain historical pond elevations in LP-27. Water levels in LP-27 would likely drop until runoff from prospective future developments is routed to the pond. Mike Frattalone, 4784 South Robert Trail addressed the Commission noting that he lives adjacent to Pond LP-27. He expressed his concern for the pond drying up if the overland drainage is directed to the north. Another concern was for the possible assessment homeowners would be responsible for with the installation of an outlet. He expressed his unwillingness to pay for such an assessment stating that he felt it should be the developer's complete responsibility to provide both the inlet and outlet. He did, however indicate that he liked the idea of having treated water going into LP-27. Deborah Johnson asked why the City would be responsible for paying for this storm water connection. Rich Brasch noted that this would be part of amain arterial but there would need to be some more information obtained to see if this particular community would be assessed for that improvement. He noted that the City Council would be making that decision. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 4 Mr. Frattalone added that he would like to see minimum damage to trees if the outlet is installed. He then shared photographs of the area with Commission Members so they would be a little more familiar with the area. Jonathan Widem asked what the cost would be to the residents for the installation of the outlet. Rich Brasch responded that it would be approximately $3,000 per acre spread over 15 years. Mr. Frattalone added that there are three owners near the pond. Ted Billy said it appears the question is whether the residents should pay for this improvement or should the developer be responsible for it. Mr. Frattalone added that he did not see this as an improvement. Rich Brasch reiterated that the assessment issue was a decision that needs to be made by the City Council. Bill Loomis, 4782 Robert Trail stated he supports the water runoff to the south. He continued that he would like to see the pond get deeper rather than provide a culvert under Hwy 3 which would then eliminate the need for an assessment to the residents. After further discussion, Ted Billy moved, Deborah Johnson seconded with all members voting in favor to make the following recommendations to the City Council regarding Weston Hills: 1. The proposal should be subject to a cash parkland dedication. 2. The proposal should be subject to a cash trailway dedication. 3. That the development be subject to an on-site ponding requirement, that the pond be constructed to National Urban Runoff Program (NURP) design standards, and that the pond meet the requirements for wet volume, surface area, and mean depth identified in the above narrative. In addition, the pond should include a skimmer. 4. The issue of routing treated runoff water to Pond LP-27 be tabled until further discussion can occur to resolve this issue. Rich Brasch asked Mike Ridley If ft would be a major change for the storm water to change from the north to the south. Mr. Ridley responded that this issue should not require additional Council action, rather could be handled in-house. Rich suggested that this issue could be addressed at the next Commission meeting and changes can be made at that time. Mr. Ryan of Lyman Lumber stated that the runoff situation is an engineering issue that needs to be resolved. He stated that they do not have a problem with providing on site ponding and will work with staff to resolve any remaining issues. Kevin Knight asked if there was anything that could be done to eliminate the outiot from JP-27. Rich Brasch responded that the City needs to be cognizant of any potential flooding risk that may occur by not installing an outlet. Mr. Ryan added that the current elevation Is 920 with the normal water level of 922 and the high water level designation of 925.5. He continued that one reason for not raising the level too high is because of proposed development to the south of the site and the impact of future runoff. WEXFORD ADDITION Project Planner Mike Ridley introduced this item to the Commission as a request to amend the Comprehensive Guide Plan from mixed residential to single family, rezoning of 36.1 acres to R-1 and a preliminary plat of sixty-five (65) lots. The subject parcel is located within the southwest comer of the intersection of Thomas Lake Road and County Road 30. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 5 Rich Brasch reviewed the water quality issues stating that this proposed development is located in drainage basin B which eventually drains to Blackhawk Lake. Rich reminded the Commission that Blackhawk Lake does not currently meet the water quality standards necessary to support the direct contact recreation use classification identified for this water body in the Water Quality Management Plan. With that in mind, Mr. Brasch stated that the development should be subject to an on-site ponding requirement. Stephen Sullivan reviewed the park and trails dedication requirements which would need to be provided by the developer. He noted that the site is within Park Service Area #28 serviced by Evergreen and Downing neighborhood parks. Thomas Lake Community Park and Heine Pond Park provide specialized recreational benefits. Steve continued that a 1.9 acre parcel within this subdivision had been purchased which had previously fulfilled its parkland dedication. This would require that an adjustment be made in the cash parkland dedication amount. Based on a gross density of 1.80 units per acre this equates to 3.42 units for a cash parks dedication adjustment equivalent to $2,394.00. Steve then reviewed the five staff recommendations as they pertained to parks and trails dedication. Jim Johnston representing Dan Dolan Development Inc. addressed the Commission noting that his involvement with staff has been very enjoyable. They have found staff to be both tough and fair in working with this project. He continued that this project has been voluntarily downsized and they feel it will be of benefit to the City by creating a more aesthetically pleasing development. Mr. Johnston asked that the Commission consider the possibility of reducing dedication fees to allow for more site amenities such as more extensive landscaping to enhance the property as well as buffer the area from adjacent properties. Deborah Johnson asked N it was normal procedure for the Commission to grant a reduction in park or trail dedication fees. Mr. Vraa stated that this Is the first time a request of this type has been received. Steve Sullivan added that there are some instances where the Commission has authorized a credit if the amenities provided by the development prove to be a recreational benefit to the city. When a credit is approved by the Commission it does not exceed 25°x. Jack Johnson noted that this request has not been considered in the past and expressed his concern for the possibility of setting a precedent. Kevin Knight asked Mr. Johnston what kind of specific amenities he was referring to. Mr. Johnston responded that by the developer voluntarily downsizing this project it would inherently benefit the city. In addition, they are willing to work with staff on any specific areas where landscaping, for example, could be done to screen visual obtrusions as well as provide a higher aesthetic quality to the area. Jonathan Widen asked how the aesthetic plantings would affect the recreational impact of the community. Ted Billy added that he is not comfortable with considering a credit in this case and expressed his concern for setting a precedent. After further discussion Deborah Johnson moved, Lee Markell seconded with all members voting in favor to make the following six recommendations to the City Council with respect to Wexford Addition: 1. The proposal be subject to a cash parks dedication. 2. The cash park dedication amount shall provide a credit of 3.4 units to the subdivision. 3. The proposal shall be subject to a cash trailways dedication. 4. The developer shall submit a tree protection plan to the City for review and approval prior to final plat. 5. The developer shall install a snow fence adjacent to significant woodland. The snow fence would be inspected and approved by the City prior to any grading. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 6 6. The development be subject to an on-site ponding requirement that the pond be constructed according to National Urban Runoff. Program (NURP) design standards. To meet water quality standards the pond would need a wet pond volume of 3.2 acre feet, a minimum surface area at the normal water elevation of .72 acres, and a mean depth of 4.4 feet. Consistent with these design standards, a minimum 10 foot wide bench with a 10:1 slope should be maintained around the edge of the pond just below the normal water level to meet safety requirements. The pond should also Include a skimmer on the outlet, and the inlet should be separated from the outlet to the maximum extent possible. HAWTHORNE WOODS ADDITION - LYMAN DEVELOPMENT Project Planner Mike Ridley introduced this item to the Commission as a request to rezone 51 acres from Agriculture to R-1 Single Family and the preliminary plat of 97 lots. This parcel is located south of County Road 30, north of Autumn Ridge Addition, east of Dodd Road and west of Highway 3. Rich Brasch addressed the water quality Issues noting that about 5.7 acres on the west side of the development will drain to Pond JP-68, a recreational class pond designated for wildlife habitat. The remainder of the site will drain to the north. All runoff generated from the site will eventually reach Fish Lake and then on to Blackhawk Lake which both hold the Gass I classification per the City Water Quality Management Plan and are intended to support direct contact recreation. Rich noted that neither lake currently meets the Class I water quality standard. Rich continued that the developer will construct a small settling basin contiguous with JP-68 that will partially treat runoff entering JP-68 from Hackmore Drive with the remainder of the water quality obligation being met with a cash dedication, reduced to reflect the credit for the small pond at the northeast corner of JP-68. Parks Planner Sullivan reviewed the parks and trails dedication issues as they relate to the Hawthorne Addition. He noted this site is within Park Service Area #25W and is served by Lakeside and South Oak neighborhood parks. He noted that there is adequate parkland and recreation facilities within this Park Service Area and a cash parkland dedication of approximately $67,900 is being proposed. Relative to trails dedication, Steve noted that the Comprehensive Trails Plan proposes trailways along both sides of Dodd Road and County Road 30. The Autumn Ridge subdivision is responsible for the construction of a 6 foot concrete sidewalk along Hackmore Drive which provides safe and efficient pedestrian circulation to Pinewood Elementary School and to Dodd Road. Steve noted that staff is recommending that the Comprehensive Trails System Plan be revised to include a sic foot wide concrete sidewalk along the south side of proposed Hawthorne Woods Drive and a short link along Hackmore Drive. This proposed sidewalk will not only provide safe and efficient pedestrian circulation to Pinewood Elementary School and Dodd Road but will provide continued linkage to Lakeside Park as well as an alternative route to the proposed detached trailway on County Road #30, west of Dodd Road. Another issue discussed was a problem of off street parking by residents which impedes safe and efficient pedestrian circulation. Several options have been discussed, however the typical 60 foot right-of- way and 30 foot front yard setback does not accommodate sidewalks along residential roads. A sidewalk can be unimpeded by double stacked residential parking with either an increased setback or right-of-way width. Steve continued that subject to.the Commission recommending an unimpeded sidewalk, the Planning Commission and/or City Council would review the increased setback or right of way width alternatives. It was noted that once a sidewalk location was determined, the developer should grade the trail at a 10 foot oversized width and provide a 10 foot clear zone free of any encumbrances, i.e. hydrants, light poles, telephone/cable pedestals, etc. and pedestrian ramps should be installed at all street Intersections. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 7 A final issue reviewed by Mr. Sullivan was relative to the analysis and preservation of woodland resources. Some of the items for the Commission to consider included a tree protection plan and the fencing of significant woodlands as Identified in this plan prior to any grading. Steve concluded that the developer has done a good job in site planning and tree preservation. Mr. Ryan, representing Lyman Development, addressed the Commission with their concerns relative to the installation of a sidewalk and the proposed setback requirements relative to double stacking of vehicles. He stated that In October, 1991 the planning had begun for this project and the sidewalk issue has just recently become a part of this proposal. He expressed their concern for the design implications of providing a 65 foot right-of-way which would adversely affect 9 lots. Secondly they did not feel that the frequency of vehicles impeding sidewalks/trails was significant enough to constitute this type of change. He continued that Eagan has only a limited amount of developable areas within the city and changing development standards at this time seems inappropriate. He questioned what would be done in areas where sidewalks and trails currently exist. It was noted that current Statutes provide for tagging of cars that are parked on trails. Mr. Ryan added that with this already in place it didn't seem necessary to create a new policy that would only affect the last few developable parcels in the city. Mr. Ryan also stated that the vehicle standard length of 17 feet was used in calculating the proposed right-of way/setback change and that he has found that there are very few cars that meet or exceed this 17 foot length criteria. In conclusion, Mr. Ryan suggested that the issue of encumbered trails be treated equally throughout the city and that all options be considered. Bruce Anderson, 633 Hackmore Drive stated that he was one of the first families to move into this area and was speaking against the option of a cash parkland dedication. He continued that when Autumn Ridge and Hawthorne are completed, there will only be one park to share with the school. He stated that there is only one access to Hawthorne. Mr. Anderson suggested that in lieu of a cash dedication another park site be dedicated and developed. Additionally, he stated he had heard that there would be a link from Autumn Ridge to Lakeside Park and is concerned for safety issues and the fact that there are very few accesses. Mr. Anderson thanked the Commission for their time and consideration. Director Vraa responded that there are two neighborhood parks that service PSA 25W; one is South Oaks Park and the other is Lakeside Park. When Lakeside Park was reconstructed it was intended that the area to the north would have access. It also provided access for residents to Pinewood School. Steve Sullivan added that the calculated population of the area north of Lakeside Park is approximately 6900 which falls within the neighborhood park population criteria. In response to a question from Jack Johnson, Steve responded that the distance from Hawthorne Addition to Lakeside Park was approximately one-half mile. Jack Johnson asked if there was a history of problems with cars parking on trails. Mr. Vraa responded that this issue most commonly impacts bikers rather than walkers. He continued that the amount of complaints/concerns are subjective and this situation seems to occur more when there is no off-street parking provided. Mr. Sullivan explained that all the options outlined on page 46 of the packet were done as possible solutions to the double stacking issue and were only provided as guidelines and possible options for consideration. Jonathan Widem asked if on street parking is allowed in this area to which Mr. Vraa responded yes. It was also noted that most of the homes will have double or triple car garages which should lessen the potential for parking on a sidewalk/trail corridor. Jack Johnson suggested that the issue of parking on trails should be addressed through City Codes and was not in favor of changing a requirement in this development at this time. Mr. Johnson also asked that as many trees as possible be preserved. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 8 After further discussion Ted Billy moved, Jonathan Widem seconded the motion with all members voting in favor to make the following recommendations to the City Council: 1. The proposal be subject to a cash parkland dedication. 2. The proposal be subject to a cash trails dedication. 3. The Comprehensive Trails Systems Plan be amended to include a sidewalk along the south side of Hawthorne Woods Drive. 4. The developer grade a 10 foot wide trail bench north of the south R.O.W. of Hawthorne Woods Drive and west of the east right-of-way of Hackmore Drive. The developers shall be responsible in assuring that a 10 foot wide area be clear of all encumbrances. Pedestrian ramps shall be installed at all street intersections. 5. The developer provide a tree protection plan prior to final plat that shall be reviewed and approved by City staff. 6. The developer install fencing adjacent to significant woodlands consistent with the approved tree protection plan. The fencing will be inspected and approved by City staff prior to any grading. 7. The developer work with Eagan Engineering Department and Dakota County determining whether the proposed storm sewer pond could be removed from the proposal to an off-site pond. 8. Recommend to the City Council that an analysis be done to determine how best to prevent double stacking of vehicles on trallways and sidewalks. 9. The development include a small pond proposed in the development plan at the southeast corner of JP-68 and that the remainder of the development be subject to a cash water quality dedication in the amount of $27,908. FOLLOW UP FROM LEAGUE LEADERSHIP MEETING Superintendent of Recreation Dorothy Peterson reviewed the function of the League Leadership Committee and reminded the Commission that at their December 5, 1991 meeting they had recommended that staff propose a 50/50 split of concession profits when the concessions are operated by a league team for tournament events. Dorothy continued that Recreation Supervisor Jon Oyanagi has since met with the League Leadership Committee and reported the Commission's recommendation. Jon noted that the League Leadership Committee was not happy with the Commission's recommendation for a 50/50 split because of the large amount of volunteer time involved in running concessions for a tournament. They felt that the profits received would not balance with the time spent in this endeavor and suggested a sliding scale based on net proceeds from the concessions. Their proposal suggested that the city would receive a fee of $25 for the first $200 profit; $50.00 from $200 to $400 profit; $75 from $400 to $600 profit and $100 over $600 profit. It was noted that any higher rates would clearly discourage teams from taking the risk and putting out the work effort. Jon continued that given the Commission's direction to negotiate with the League Leadership Committee on this issue; staff has accepted this compromise position for implementation in 1992. He stated staff will continue to monitor the policy this year and report back to the Commission the results of its implementation. PROPOSED TREE REPLACEMENT ORDINANCE UPDATE Superintendent of Parks John VonDeUnde reminded the Commission of their request to have staff provide an update on the status of the city's landscaping ordinances particularly those sections dealing with landscape preservation and tree replacement in new subdivisions. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 9 The ordinance revision process was divided into two primary components; the establishment of a new city landscape preservation and tree replacement ordinance as it pertains to new land development and residential subdivisions and secondly, the "post development" landscape ordinances affecting the maintenance of trees on private property, along streets, and in public places. John continued that the City Council adopted the post development ordinances on July 17, 1990 which included shade tree disease control, planting and maintenance of trees on private property, tree contractor licensing and planting and maintenance of trees on public right-of-way. Mr. VonDeUnde explained that the Advisory Parks, Recreation and Natural Resources Commission has endorsed and recommended to the City Council a series of proposed revisions to the city's subdivision regulations and land use (zoning) regulations. The proposed new requirements include, minimum planting sizes for deciduous and coniferous trees and shrubs; landscaping budgets equivalent to 2-112 percent of the cost of the value of proposed buildings, but not less than $15,000 per development; planting islands occupying at least five percent of parking areas; reforestation and/or native landscape restoration on all slopes and berms; preservation of woodland areas, i.e. prohibition of clear cutting of woodland areas and caliper inch per caliper inch replacement for shade trees greater than eight inches diameter; regulation of private irrigation systems within public right-of-way; establishment of buffers and vegetative and screening between land use zones, and around all parking, loading, utility and storage areas; and protection of large trees within new construction areas (e.g., no excavation or other sub-surface disturbance within the drip line of any tree eight inches in diameter or more). In conclusion, John stated that the Parks and Recreation Department has been actively Implementing the post-development landscape regulations adopted by the Commission and City Council in 1990. The Commission has reviewed and concluded that a comprehensive master street tree planting program is not a viable option at this time. In the interim the City Forestry Division will continue to review and authorize individual permit applications for planting within right-of-way areas, on a case by case basis. With regard to the subdivision and zoning landscape ordinances,, the City Council has not yet adopted the revisions approved by the Planning Commission and Parks and Recreation Commission in 1990. With a few minor changes the ordinance could be ready for Council action; but this will require the initiative of the Community Development Division who oversees subdivision and zoning regulations. John stated that Community Development and Engineering are working cooperatively to work out a standard plate for placement of utilities within boulevards. Should any of these outstanding issues be resolved in the near future, Mr. VonDeUnde stated he would bring them back to the Commission as an update. 1992 PARKS DEVELOPMENT PROJECTS Director Vraa introduced this item to the Commission as their annual review of proposed projects for the upcoming year. Ken explained that the packet contained a goals and objectives outline identifying tasks and their priority. He asked the Commission to review the prioritized and non-prioritized items and provide their input as to which tasks receive the highest priority. Mr. Vraa then reviewed some of the items outlined in the 1992 Planning Division Goals and Objectives and asked the Commission to evaluate these goals and make recommendations regarding their priority and scope. WATER QUALITY BROCHURES Water Resources Coordinator Brasch shared the progress of brochures planned to reach residents to educate them on the role of phosphorus in lake water quality degradation and the connection between storm sewers and lakes. A second brochure is intended to be used as a tear out reference to provide guidance on "lake-friendly" lawn care and other practices. Rich asked Commission Members to call him if they had any comments or questions regarding the brochures. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 MEETING PAGE 10 Jack Johnson expressed his pleasure in seeing these brochures prepared for the public. Jonathan Widem suggested adding information on where solvents and oils could be disposed of. Jack Johnson also suggested adding where no phosphorous or low phosphorous fertilizer can be purchased in the city. STENCILING PROGRAM FOR STORM SEWER CATCH BASINS Rich Brasch introduced this item as a crucial element in the education effort to teach residents about the connection between the City's lakes and the storm sewer system that feeds them. This appears to be a connection that many people simply do not recognize. Rich stated it is especially important in the immediate drainage area of a lake where pollutants that enter the storm sewer system are carried directly to the lake without being routed through intermediate ponds to provide opportunities for settling. The 1992 efforts will target the direct drainage areas of all six Class I lakes, as well as seven of the fourteen Class II lakes identified in the City's Water Quality Management Plan. The plan is to paint informative stencils near catch basins in priority drainages. The intent is to solicit volunteers from the Boy Scouts and/or local civic organizations, with City staff providing overall direction, training and supplies as well as appropriate safety equipment. If the program proves successful it can be expanded to other lower priority areas in succeeding years. After positive comments from the Commission, Erin Ipsen moved, Jonathan Widem seconded the motion will all members voting in favor to recommend to the City Council that the City implement a stenciling program which would provide for painted informative stencils near catch basins in all six Class I lakes, as well as seven of the fourteen Class II lakes identified in the City's Water Quality Management Plan. WETLANDS CONSERVATION ACT OF 1991 - UPDATE As background Rich Brasch explained that the basic intent of the Act is to recognize and protect the public benefits of wetlands with regard to water quality treatment, floodwater retention, public recreation, fish and wildlife habitat, groundwater recharge and potential commercial uses. In general, the Act sets up a program designed to act as a "safety net" for wetlands not actively regulated under the authority of either the Minnesota Department of Natural Resources (DNR) or the federal Corps of Engineers (COE). Rich continued that the Minnesota Board of Soil and Water Resources has been assigned the responsibility of administering the Act at the state level, however the Act mandates a strong role by cities, counties and watershed management organizations in the administration of its regulatory elements. The provisions of the Act take place in two phases. The first phase is an interim program that begins on January 1,1992 and lasts until July 1, 1993 with the permanent program taking effect on July 1, 1993. Jack Johnson stated this was a step in the right direction and was pleased to see the City involved with this project. Lee Markell added that there have been several smaller wetlands that have fallen through the cracks so this Act will be a positive step in helping to preserve them. 1992 SUMMER PROGRAM REPORT Ken Vraa introduced this item to the Commission explaining that the issue of generating revenue came to the forefront during the 1992 budget review process. The philosophy of the Department in the past has been to not charge a fee for the summer playground program, however during the budget review process, the City Council directed staff to charge a fee for this program. The Council left the fee amount up to the discretion of the Department therefore the information provided to the Commission is the conclusion of extensive research and analysis. ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION MINUTES OF FEBRUARY 6, 1992 PAGE 11 Recreation Supervisor Paula Nowariak explained the process followed in attempting to determine what type of fee structure would be used for the summer playground program. She reviewed the operation of the program as it currently exists which is a seven week program operating Monday through Thursday from 1 - 4 PM (Thursdays are typically optional field trips and regular Summer-in-the Park hours are not kept). In looking at alternative ways to present this summer program, Paula reviewed the strengths and weaknesses of operating under the pay by the day approach, magnet approach and split session/camp approach. Other Information obtained Included surveying other communities to see what (or if) they charge a fee, how long they have been charging a fee and did they lose a large number of participants by instituting a fee. In most cases, the numbers dropped somewhat, but once the fees were established they were accepted as part of the program. In conclusion, Ms. Nowariak reported that after extensive research and brainstorming by staff the Summer-in-the-Park program will maintain its current format with twelve sites and charge $10.00 per child. The program fee will be re-evaluated for 1993 with a potential increase. In response to a question regarding children who may not be able to afford to attend, Paula replied that the scholarship program will continue under its present format. She added that to date there have been relatively few scholarships requested. DEPARTMENT HAPPENINGS Some of the items highlighted in the February Department Happenings Included the Introduction of a track program through EAA, the successful completion of the Bandy school and clinic, upcoming NYSCA coaches training sessions, the successful snow softball tournament during the Winter Weekend, the upcoming closure of the rinks and tubing hill and the preparation for summer softball. It was also noted that two grant requests are being worked on; one for reforestation and one for treatment facility for Blackhawk Lake. ICE ARENA/POOL UPDATE Director Vraa explained that Ankeny Kell and Richter had been selected as the architects to prepare schematic plans and cost estimates. It is anticipated that these plans and estimates should be ready by February for the Design Review Committee to review so that a recommendation can be made to the City Council for their March 3, 1992 meeting. Ken continued that the Committee will meet regularly over the next few weeks to refine plans and provide Input for the architects. The proposal is for an outdoor swimming pool and a six-month operational ice arena. ROUND TABLE Dan Mooradian commented positively on the level of effort provided by staff in both their reports and their presentations. Kevin Knight echoed Mr. Mooradian's comments. Lee Markell referenced the addition of "Natural Resources" to the Commission's title in the last year. He added that staff has taken this issue very seriously and as a Commission Member he was very encouraged with the direction this issue has gone. With no further business to conduct, Lee Markell moved, Erin Ipsen seconded the motion to adjourn the meeting. The meeting was adjourned at 11:00 P.M. Se etary Date MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARK PLANNER DATE: FEBRUARY 14, 1992 RE: CONSENT AGENDA 1. Town Centre 70 - 12th Addition - Midwest Restaurant Associates A Preliminary Plat consisting of one lot and one oudot on approximately 3.5 CSC (Community Shopping Center) acres and a Conditional Use Permit to allow on sale liquor, 3.2 beer or wine, in a CSC district located west of Town Centre Drive in the NW 1/4 of Section 15. RECO11i 11r1EN LATION: 1. The proposal be subject to a cash parkland dedication. 2. The proposal be subject to a cash trailway dedication. SS/bls MEMO TO: ADVISORY PARKS, RECREATION, AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: FEBRUARY 28, 1992 SUBJECT: CONSEN'T' DEVELOPMENT PROPOSAL Town Center 70 12th Addition - Midwest Restaurant Associates This preliminary plat application is for a commercial development and includes one lot of 131 acres and 1 outlot of 2.2 acres. The development will discharge stormwater to Pond DP-4, an existing pond to the north which is classified as a nutrient trap in the City's Water Quality Management Plan. Runoff from the site will eventually reach Le May Lake, one of six Class I lakes whose water quality is intended to be good enough to support direct contact recreation activities. Le May Lake does not currently meet the water quality standards set for it in the Water Quality Management Plan. The site is too small to accommodate an on-site treatment basin, so a cash dedication in lieu of ponding should be required by the City. Based on the actual amount of impervious area shown on the site plan (61%) and the size of the proposed active development area (131 .acres), the cash dedication requirement is: .07 acres X $130,680/acre _ $10,115 .26 acre-feet X 1,613 yd.'/acre X $2/yd. = 595 $10,710 That portion of the site platted as an outlot will be subject to an additional dedication when it is replatted for actual development. Recommendation The development should be subject to a cash dedication of $10,710 to satisfy water quality requirements. Rich Brasch Water Resources Coordinator RB/cm 27wp:advpark1.059 TOWN CENTRE 70 TWELFTH ADDITION • N • bl..to. I- ..w-m..t...4, "t•. r_;7A • • bMttl IrM n.nwM ftlM. y/y 1 w~ b1t, 1' 4'!ytlh 1 NI'Ih b e 1 tfM M r•U S tr"" Preliminary Plat tr 1•+r.w.•.a.w r ~ •.nwe•va 2,211...0 tow i • •1[111 t. Me► \ .f. he. 17. 4,r•.//. q., /1 wp /r•Iw4,e• •M •till l7 L•.•vn\• MMw fM - •1 b.• _tltr to wlew••t e..t•r'.nt ea«1•eo - LI•ItN i•ct••rM1, •M till. t.r•I C•.,tne. 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MEMORANDUM TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT/PARKS PLANNER DATE: FEBRUARY 18, 1992 RE: INDEPENDENT SCHOOL DISTRICT #196 ELEMENTARY SCHOOL #17 PROPOSAL An application has been submitted requesting a Comprehensive Guide Plan Amendment from D-1 (Single Family) to PF (Public Facilities). The request is also for the rezoning from Agriculture to Public Facilities and the Preliminary Platting of 15 acres for an elementary school. BACKGROUND The site is located south of Wescott Road and east of Denmark Avenue. The site can be characterized with rolling terrain with moderate to steep slopes. The parcel has a central open meadow area which is encircled primarily by mature oaks and aspens. Approximately 50% of the site is wooded. The site program for the elementary school includes a 78,965 square foot building, 98 car parking lot, service area, trails, two softball/soccer field overlays, hard surface play area and playground. The south 50' of the parcel is consumed by a Williams Brothers Pipeline easement. . FOR COMMISSION REVIEW. The Commission will need to review and make recommendation 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? PARKS DEDICATION Public facilities are not subject to a parks dedication. I.S.D.196 Elementary School #17 Page 2 TRAILS DEDICATION Public facilities are obligated to pay toward trails dedication. The trails dedication amount is based on the 1992 rate equates to $12,810.00 As a side note, existing trails lie on both sides of Wescott Road. The site plan indicates a sidewalk connection from the school to the Wescott trail. The sidewalk is located adjacent to a future public road which will be improved: to the school's east property line. The, eventual development to the south and east of single family residential may include the continuation of this sidewalk to provide safe and efficient walling circulation to the elementary school. The Commission will further evaluate this sidewalk item with the platting of future adjacent parcels. TREE PRESERVATION The 15 acre school site contains approximately 7.75 acres of woodlands. A tree survey was prepared by the School District. This survey indicates location, size and type of trees. The woodland area is predominantly mature oaks averaging a 12" - 20" diameter and aspen colonies. Staff has met with the School District on several occasions to review the submission. At each meeting City staff has expressed concern regarding the amount of tree loss. The School District has responded by revising the layout and grading to preserve significant oak trees along their westerly property line. The development plan preserves approximately 1.8 acres of mature oaks ranging in diameter from 12" - 28" along this west property line. Three small preservation areas equaling approximately 35 acres are proposed along the easterly property line. Also, a small preservation area is located centrally along the south property line within the gas easement. The total area preserved after development is approximately 2.2 acres from the existing 7.74 acres of woodlands. This equates to a 72% loss rate of the woodland resource. The tree loss is a direct result of a realistic but land consumptive site program for this 15 acre parcel. This utilization of the parcel for facilities meets the school needs but results in tree loss. The recreational facilities are characterized by flat grades on a rolling site. Therefore, there is a need for additional grading resulting in additional tree loss. In summation, the limited acreage, site program and rolling terrain are not compatible in providing extensive woodland preservation. Staff has evaluated the grading plan as it relates to the tree survey and has found specific trees which have preservation potential based on revising grades, utilizing minimal height retaining walls or realigning facility locations. The first area is southwest of the service area. Two 26" oaks and a 14" oak are at the same to within 3' of the proposed grade. The second area is east of the hard surface playground. Four oaks ranging from 12" to 18" diameter are within 2'-5' of the proposed elevation. 9 10 LS-D.196 Elementary School #17 Page 3 A proposed trail alignment and grade may need to be revised to preserve these trees. The third location is north of the north building access. A 14" diameter oak is within 2' of the proposed grade. A storm sewer alignment may need to be realigned. The fourth location is south of the southern softball field. A 20" and 28" diameter oak are within 6' of the proposed grade. Revising grades with a short retaining wall may accommodate the preservation of these two trees. Lastly, a 40" diameter oak lies within 5' of the northeast walkout facade. This tree is at an 883' elevation. The proposed elevation is 879'. In order to accommodate this tree, -the building-pad= would need to. be-shifted and. grades x- evfsed.: Based on this preliminary evaluation- _staff recommends that.. the School District review individual tree preservation prior to final platting....---. The School District has agreed to utilize tree protection fencing. The School District needs to provide a tree protection plan denoting the fence location prior to final platting. FOR COMMISSION RECOMMENDATION The Commission may consider the following recommendations: 1. The proposal be subject to a cash trails dedication. 2. The School District evaluate and submit to the City, prior to Final Plat, tree specific preservation revisions. 3. The proponent submit a tree protection plan to the City prior to Final Plat. SS/nh MEMO TO: ADVISORY PARKS, RECREATION AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER QUALITY COORDINATOR DATE: FEBRUARY 28, 1992 SUBJECT: WATER QUALITY REQUIREMENTS FOR WESCOTT SCHOOL ADDITION - INDEPENDENT SCHOOL DISTRICT 196 Proposal This preliminary plat. application is for an elementary school, including play fields, on approximately 15 acres and located along the south side of Wescott Road and east of Denmark Avenue in the northeast 1/4 of Section 22. . The land is now zoned for agricultural use so a request for a change in zoning to public facilities use has also been made. 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 a cash dedication requirement to meet water quality standards set by the City in its Water Quality Management Plan. Water Ouality Analysis The elementary school development will be located in the lower reach of drainage basin J. Stormwater runoff from the site will be discharged first to Pond JP-11.1, a nutrient trap just south of Wescott Road. After flowing through two other intervening ponds, the water will be discharged to Fish Lake. Fish Lake is designated a Class I direct contact recreation lake but does not currently meet the water quality standards necessary to support all desired uses. Normally, on-site ponding would be preferred as a means of satisfying water quality treatment requirements because of the proximity of the proposed development to a Class I water body. A pond having a surface acreage of .41 acres and a volume below the normal water level of 1.32 ac-feet, and located to intercept all runoff from the site would be necessary to meet basic treatment requirements. School district officials stated that they did not feel they had sufficient space on the site to accommodate a pond of this size, provide for adequate tree protection, and still meet school district guidelines for play fields. In addition, there is one large nutrient basin between the discharge point for the schools stormwater and the nearest downstream recreational water body where modification could be made to improve treatment efficiencies. In view of these considerations, a cash dedication in lieu of ponding was discussed as a means of satisfying the water quality requirements. Using the methodology outlined in the water quality management plan, the cash dedication for this development is: 0.41 acres x $23.805/ac. for schools = $ 9,760 1.32 ac. ft. x 1.613 cu. yds. x $2/cu. yd. _ $ 4,750 TOTAL $ 14,510 Staff Recommendation The development should be subject to a cash dedication of $14,510 to satisfy water quality requirements. - Rich Brasch Water Resources Coordinator RB/cj k MEMORANDUM TO: ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FROM: STEPHEN SULLIVAN, LANDSCAPE ARCHITECT ARK PLANNER DATE: FEBRUARY 14, 1992 ' RE: DEERWOOD PONDS ADDITION APPLICATION An application has been received requesting rezoning from R-3 Townhouse to R-1 single family and the preliminary platting of twenty-eight (28) lots. BACKGROUND The parcel is located within the Knob Hill Planned Development. The park dedication for this PD was to be a land dedication at the time of platting. However, the Knob Hill Planned Development Agreement has since expired, therefore eliminating the previously approved parkland dedication obligations. COMMISSION REVIEW The Commission will need to review and make recommendation regarding the following items: 1. What is the park dedication? 2. What is the trails dedication? 3. What is the developmental impact to the tree resource? PARKS DEDICATION The parcel is located within Park Service Area #21. The Commission has previously studied this area and concluded that a park may potentially be located within the area north or west of this parcel. The determination of the park need and location would be based on future defined land use and population concentrations. Park Service Area #21 also includes Deerwood School, which provides some park benefit to this Park Service Area. Also, the improvement of the existing elementary site may provide opportunities for a combined neighborhood/school park site. Staff feels that the "future" will provide the best understanding for the appropriate parkland dedication. Staff recommends a cash parks dedication. The cash park dedication equates to $19,600.00 based on a 1992 rate. oz'f . TRAILS DEDICATION The proposal is obligated to a cash trails dedication. The trails dedication equates to $2,800 based on a 1992 rate. TREE PRESERVATION The site is characterized by several areas with mature oak and aspen woods. In response, the development plan makes a strong effort in protecting these trees through the custom grading approach and use of private access drives. This approach simply grades in roadways and the private drives. The lot areas remain undisturbed. Most Eagan developments grade house pads at the time of development, resulting in additional disturbed area. The developer has agreed to place tree protection fencing prior,to grading. As well, staff recommends that this fencing be utilized with the grading of each lot. The development also utilizes private -drives for multiple lot access. The use of a private drive eliminates the typical 50 - 60' R.O.W., keeping the disturbance area to a minimal width. Lastly, the request to re-zone from R-3 to R-1 will reduce the extent of tree loss when compared to the previously approved multiple family layout of the planned development. Subject to sensitive lot development, less tree area will be disturbed with low density single family development. In summary, the down zoning, custom grading approach, use of private access roads and utilization of tree protection fencing is an appreciable effort in preserving the tree resource. The developers commitment to sensitive architectural compatibility, site planning and builder sensitivity, although not by City authority, is essential in assuring a complete effort in preserving these significant woodland areas. FOR COMMISSION ACTION The Commission may consider the following recommendations: 1. The proposal shall be subject to a cash parkland dedication. 2. The proposal shall be subject to a cash trails dedication. 3. The developer submit a tree protection plan, which denotes woodland masses by general type and size. The plan shall indicate tree protection fencing area for the initial custom grading. The plan shall be prepared, reviewed and approved by staff prior to final platting. 4. The developer provides tree protection fencing for each lot to be reviewed and approved by City staff at the time of building permit application. SS/bls MEMO TO: ADVISORY PARKS, RECREATION, AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: FEBRUARY 28, 1992 SUBJECT: WATER QUALITY REQUIREMENTS FOR DEERWOOD PONDS DEVELOPMENT PROPOSAL This preliminary plat application is for a single family residential development consisting of 28 lots on 17 acres and located along the north side of Diffley Road, west of Pilot Knob Road in the southeast comer of section 21. The land is now zoned for multi-family residential development, so a change in zoning 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 rash dedication requirement to meet water quality standards set by the City in its Water Quality Management Plan. WATER QUALITY ANALYSIS This single family residential development is located in the lower reach of drainage basin B. Runoff generated by the proposed development will eventually reach Blackhawk Lake, approximately one mile down drainage. Blackhawk Lake is one of six lakes designated as Class I direct contact recreation water bodies in the City's Water Quality Management Plan and does not currently meet the water quality standards set for it. The proposed development contains all or part of several existing wetlands on site. The most significant is pond BP-27, a 2.1 acre pond classified as a nutrient trap in the City Water Quality Management Plan. BP-27 is divided by an existing dike which separates the pond into : two cells. The larger south cell is about 1.9 acres in surface area, while the smaller northern cell is approximately .2 acres. Another pond, BP-27.1, lies along the north border of the development and is classified as a sediment basin. In addition, another small ,wetland lies on site on portions of lots 2, 3, and 6 of the proposed 4th addition. All will remain intact and will receive some stormwater runoff from the development. 1 Over 3 acres of the proposed development is already occupied by existing wetlands, so construction of an additional on-site pond to treat runoff is not feasible. However, water quality treatments could be met by raising the normal water level of the larger southern cell of pond BP-27 by one foot to elevation 886.75, and by increasing the wet storage volume of the small northern cell of pond BP-27 by .75 acre/feet. Based on site surveys, both measures are feasible without creating additional adverse impacts to surrounding high value trees, i.e., oaks and other hardwoods. To further mitigate water quality impacts created by the development, the developer should install a skimmer on the outlet of the southern cell of pond BP-27. STAFF RECOMMENDATION Staff recommends that the development meet its water quality treatment requirements by increasing the wet pond volume in the two cells of pond BP-27 in the manner identified in the above narrative. In addition, the outlet on the southern cell of pond BP-27 should include a slimmer. Rich Branch Water Resources Coordinator RB/cm i 27wp:advpark2.059 2 MEMORANDUM TO: ADVISORY PARK, RECREATION AND NATURAL RESOURCE COMMISSION FROM: KEN VRAA, DIRECTOR OF PARKS & RECREATION DATE: MARCH 2, 1992 RE: MEGHAN'S ADDITION BACKGROUND A preliminary plat applicatioA has been .received for. the Meghan's Addition which proposes the re-zoning from neighborhood business to multiple family and 104 units on 10.6 acres of property. (See attached information compiled by the Community Development Department). PARKS DEDICATION This property, currently zoned neighborhood. business, was platted sometime prior to the 1970's when the Cedar Grove Addition was platted and developed. Staff has reviewed all available files and has found no indication that parks dedication was ever fulfilled when this parcel was platted. If the parcel were to be developed for neighborhood business as is zoned, the cash dedication for parks would be the equivalent to 2.75 cents per square foot; which is the rate for any commercial parcel platted prior to 1983, when the City enacted the Parks Dedication Policy for Commercial/Industrial property. Commercial property platted today, would be at the rate of 5.5 cents per square foot. The developer has expressed concerns over "how" the rate for parks dedication would be calculated, and what the actual amount would be. Would the rate be based on current zoning or, given the change in land use to multiple family; would the rate be $559 a unit, as is the 1992 rate? The developer has also previously expressed a concern that the rate of $559 a unit, exceeds the general guideline of 10 - 12% for parks dedication given the current value of this property. I (As the Commission will recall, parks dedication is based 1 on land value, and the potential residents which would impact the park system) FOR COMMISSION ACTION To review the proposed Meghan's Addition and make a recommendation for the park dedication requirement. KV/bls Attachment MEMO TO: ADVISORY PARKS, RECREATION, AND NATURAL RESOURCES COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: FEBRUARY 28, 1992 SUBJECT: WATER QUALITY REQUIREMENTS FOR MEGHAN'S ADDITION - PULSAR, INC. PROPOSAL The City has received a request for a comprehensive guide plan amendment and rezoning to allow a change in land use from neighborhood business to R-3 (townhouse), and a preliminary plat application for a multi-family residential development of approximately 11 acres located along the south side of Diffley Road and the east side of Nicols Road in the northeast quarter of section 15. 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 a cash dedication requirement to meet water quality standards set by the City in its Water Quality Management Plan. WATER OUALITY ANALYSIS This proposed multi-family residential development lies in the lower reach of drainage basin A. Approximately 8.6 acres of the site will discharge to a storm sewer along Nicols Road. The remaining 2 acres of the site will discharge stormwater to the northeast to the existing storm sewer system on Diffley Road which eventually drains to pond AP-39. Pond AP-39 is classified as a sedimentation basin in the City's Water Quality Management Plan and is located in between the railroad tracks and the Minnesota River along Nicols Road. On site ponding to meet water quality treatment requirements is feasible for that portion of the development that-will discharge to storm sewer along Nicols Road. In order to provide adequate treatment, an on-site pond, providing a minimum wet volume of .81 acre/feet, minimum surface area of 31 acres, and a minimum average depth of 2.6 feet will be required. On-site ponding to treat drainage from the remainder of the site is not feasible, so the City should consider requiring a cash dedication for this area of the site. Using the methodology outlined in the City's Water Quality Management Plan, the cash dedication for the remaining 2 acres of the site is $2,260.00. 1 33. STAFF RECOMMENDATION Staff recommends that the development be subject to a combination of on-site ponding requirement to treat the 8.6 acres of the site that drains to Nicols Road and a cash dedication for the remainder of the site. The pond should be constructed according to National Urban Runoff Program design standards and should have the volume, surface area, and mean depth identified in the above narrative. In addition a cash dedication of $2,260.00 should be required to meet the water quality requirements for the remainder of the site. Rich Brasch Water Resources Coordinator RB/cm 27wp:advpark3.059 2 ,34. J MEMO TO: EAGAN ADVISORY PARKS, RECREATION, AND NATURAL RESOURCE'S COMMISSION FROM: JOHN K. VONDELINDE, SUPERINTENDENT OF PARKS DATE: FEBRUARY 28, 1992 SUBJECT: RESOLUTION SUPPORTING FEDERAL AND STATE OUTDOOR RECREATION GRANTS FUNDING BACKGROUND As part of their legislative platform for 1992, the Minnesota Recreation and Park Association (MRPA) is asking communities from throughout the State of Minnesota to enter into resolutions supporting continued funding and enhancement of Federal and State Outdoor Recreation Grant Programs to local units of government. As most of the Commission members probably know, the MRPA is the primary professional organization in the State of Minnesota which supports and promotes the development of the leisure services profession. Currently, the MRPA has over 440 professional members, 330 board and commission members, and is represented by 130 park and recreation agencies. On the pages that follow are a draft resolution for consideration by the Commission, along with a brief description of the State Outdoor Recreation Grant Program and Federal Land and Water Conservation Fund (LAWCON) Program. As the Commission will note, over $100 million has been provided through the LAWCON and state grants programs in the past 25 years, for the acquisition and development of recreation and open space projects on the local level. The City of Eagan is among those communities who have received considerable support from the LAWCON and state grant programs. Examples of grants for parks acquisition and development have included such parks as Blackhawk, Trapp Farm, Thomas Lake, Patrick Eagan, Fish Lake, and Rahn Athletic Parks, to name a few. Unfortunately, within the last several years, the amount of funding being allocated each year through the LAWCON and State Programs has dwindled significantly. With grant requests exceeding available dollars by a ratio of four to one, it will become increasingly difficult for the City to secure matching funds for future grants initiatives. In light of the considerable involvement of both the Commission and the Parks and Recreation Department in this program, it would be appropriate, at this time, for the Commission to consider its support of the attached draft resolution. If the resolution is adopted by the Commission, it will then be forwarded to the MRPA headquarters for consolidation with similar resolutions from other park and recreation agencies. 1 3s. FOR COMMISSION A -ION To approve adoption of the proposed resolution urging the continuation and expansion of the Federal Land and Water Conservation Fund and State Outdoor Recreation Grants Program. Jahn K. VonDeUnde luperintendent of Parks JKV/cm Attachments 2 • RESOLUTION OF THE ADVISORY PARKS, RECREATION, AND NATURAL RESOURCES COMMISSION OF THE CITY OF EAGAN, MINNESOTA, URGING THE EXPANSION OF FUNDING FOR THE FEDERAL LAND AND WATER CONSERVATION FUND AND STATE OUTDOOR RECREATION GRANT PROGRAM WHEREAS, the Federal and State governments have invested over $107 million in local outdoor recreation projects, which has been matched by over $57 million in local government funds. WHEREAS, the Federal and State programs have been a significant incentive to local govemments to undertake needed park acquisition and development projects. WHEREAS, the Federal and State programs have helped to accelerate renovation and replacement of facilities that did not meet handicapped accessible standards. WHEREAS, parks play an important role in the economic development efforts of local communities by improving the desirability of the community as a place to live and work. WHEREAS, the demand for Federal and State assistance through these programs remains strong and that In 1991, only $1 million In funding was available to help meet over $4 million In grant requests. WHEREAS, the City of Eagan has a demonstrated need to secure additional Federal and State grant assistance in order to meet the increasing demands for outdoor recreation facilities in the community. NOW THEREFORE, BE IT RESOLVED that the Fagan Advisory Parks, Recreation, and Natural Resources Commission urges the United States Congress and the State of Minnesota to continue and expand funding for the Federal Land and Water Conservation Fund and State Outdoor Recreation Program to help local governments throughout Minnesota provide adequate outdoor recreation opportunities, acquire and protect open space areas and improve the quality of life for present and future generations. The motion for the adoption of the foregoing resolution was introduced by and seconded by Ayes: Resolution unanimously adopted by the Eagan Advisory Parks, Recreation, and Natural Resources Commission the 5th day of March, 1992. Chairperson Attest: (SEAL) 27wp:advpark.058 STATE OUTDOOR RECREATION GRANT PROGRAM The State Outdoor Recreation Grant Program has offered matching grants to local governments for acquisition, development and renovation of parks for over twenty-five years. During this time, the State has invested over $50 million in local outdoor recreation projects,, which has been matched by over $57 million in local government funds. The State program has been a significant incentive to local governments to undertake needed park acquisition and development projects. In particular, the program has helped accelerate renovation or replacement of facilities that did not meet handicapped accessibility standards. Parks also play an important role in many communities` economic development efforts by improving the desirability of the community as a place to live and work. The demand for State assistance remains strong. In 1991, only $1 million in state funds was available to help meet over $4 million in grant requests. FEDERAL LAND AND WATER CONSERVATION FUND PROGRAM For over twenty-five years, the Federal Land and Water Conservation Fund (LAWCON) program has provided greatly needed grant assistance for local government and state outdoor recreation and open space projects. In Minnesota, almost $57 million in LAWCON funds have been provided for over 1,100 projects in every county and hundreds of cities and townships throughout the state. The program, supported by revenues from offshore oil leases and sale of surplus federal property, does not cost additional tax dollars and has left an important legacy for future generations. In recent years, the allocations available to local governments have been drastically reduced. The needs, however, remain as great as ever. 27wp:advpark.058 3d t MEMO TO: ADVISORY PARKS, RECREATION, AND NATURAL RESOURCE COMMISSION FROM: RICH BRASCH, WATER RESOURCES COORDINATOR DATE: FEBRUARY 28, 1992 SUBJECT: RESOLUTION OF WATER RESOURCES ISSUES FOR WESTON HILLS DEVELOPMENT BACKGROUND At its January meeting, the Commission received a memo which outlined two water resources-related issues associated with the proposed 64 acre Weston Hills development east of Highway 3 and south of Cliff Road in the east 1/2 of section 36. The first issue was the water quality treatment standard that should be met by the development. This issue was addressed by requiring the developer to construct an on-site pond that met National Urban Runoff Program (NURP) criteria to catch and treat stormwater runoff from the ;development. The second issue was based on a concern by residents south of the development regarding a possible decrease in recharge to a wildlife habitat pond (LP-27) and what effect such a decrease would have on pond water levels. The Commission requested that staff work with the developer and the residents to resolve the issue, then report back to the Commission at its March meeting. FINDINGS On Friday, February 14, representatives from the departments of Planning and Community Development, Public Works, and Parks and Recreation met with the developer and the two riparian landowners on Pond LP-27 who had expressed concern about the water levels in the pond. During the meeting, a verbal agreement was reached among all participants that storm water from the treatment pond in the Weston Hills development would be routed south to LP-27 with the understanding that the necessary ponding easements were to be given to the City, that an outlet would be installed on LP-27, and that appropriate trunk storm sewer charges would be made to benefitted properties consistent with the policies established by the city council. We also discussed the- possibility of raising the normal water level of the pond without adversely affecting the vigor of upland vegetation adjacent to the pond. Increasing the normal water level of'the pond will help decrease its susceptibility to drought-induced drying and help protect water quality. On February 21, representatives from the Public Works Department met Mr. Mike Frattalone on site to survey the elevation of the pond and adjacent trees to determine how much the pond could be raised without harming existing trees. Based on the results of that 1 ~Cl, i survey, the elevation of the pond outlet could be raised to achieve a normal water elevation of between 923.6 and 924.6 feet MSL, four to five feet above the water level elevation of 919.6 on the date of the survey. These considerations will be incorporated into the final design of the outlet. STAFF RECOMMENDATIONS Staff recommends the following: 1. That the developer route to Pond LP-27 treated stormwater from the on-site treatment pond in the Weston Hills, development. 2. Consideration should be given to providing for a higher normal water elevation in Pond LP-27 without adversely affecting stands of high value trees adjacent to the pond. Rich Brasch, Water Resources Coordinator CC. John Wingard, Design Development Enginner Shannon Tyree, Project Planner Steve Ryan, Lyman Development Conipany 2 40- J ADVISORY PARKS, RECREATION & NATURAL RESOURCE COMMISSION FEBRUARY 3, 1992 HAPPENINGS 1.*« The skating season came to an abrupt end February 16. Warm weather and slushy snow liquidated the rinks. Trapp Farm Park tubing hill remained open Fridays, Saturdays and Sundays through March 1. One incident to report occurred at Goat Hill Park when an attendant intervened as an adult male was verbally berating a youth during a pick-up hockey game. The adult took exception and argued with the attendant face-to-face, the adult then left, but returned to cross-check the attendant with a hockey stick. The police were called and did escort the adult out of the park. Overall, behavior is positive at all sites, but attendants do encounter unpleasant situations. Through training and constantly available supervision, the leaders are supported to handle these incidents. 2.*« Softball registration occurs during March. Returning teams register March 2 -20. New teams register March 23 -27. Over 200 teams will form approximately 27 leagues. 3. Watch for a great calendar of activities planned by the bike and walk clubs. Weekly and monthly events are set to reach a wide variety of participants. 4. Preliminary numbers of participants are projected by the Eagan Athletic Association as follows. SPORT 1992#'s 1991#1s 1992 Teams 1991 Teams Team % Increase In-house 1,538 1,414 110 94 17% baseball Travel 135 75 9 6 50% Baseball In-house 708 662 50 47 6% softball Travel Softball 60 25 4 2 50% Travel Soccer 326 250 21 17 24% Bantam 352 259 22 16 38% Soccer Track 500 with RAAA 12 age levels 100% 2.*« The following facilities will be rotated out of service for maintenance during the summer of 1992. CITY SCHOOL DISTRICT #1% Quarry Park soccer Thomas Lake School Bantam Soccer 1*0 The following facilities are unavailable due to construction on site: SCHOOL DISTRICT #196 Deerwood Elementary soccer and 2 ballfields 4 ~t 4. *4t The following facilities will not be ready for use in Summer 1992: Crff SCHOOL DISTRICT #1% Bur Oaks ballfield Pinewood Elementary, 2 ballfields Wescott Station ballfield 5.*« Facilities unavailable to Eagan Athletic Association programs: SCHOOL DISTRICT #191 Metcalf Jr. High ballfields 4 - 9 6.*« Facilities where access will be difficult; parking lot and/or road construction: SCHOOL DISTRICT #1% Northview Elementary, 2 ballfields 7.*4C New facilities, on line for the first time during the Summer of 1992- Crff SCHOOL DISTRICT #1% Downing Park 1 ballfield, - High School, 2 softball, 1 play field 5 baseball, 1 soccer Dakota Hills Middle School, 4 baseball ...g,*« The Department has again negotiated with Paramax Corporation (Unisys) to provide access for Eagan Athletic Association on use of Paramax fields on days the Corporation does not use this facility. 9. *4C A flyer announcing the Eagan Traveling Soccer Memorial Day Tournament was recently sent to over 200 soccer clubs in Minnesota, surrounding States and Canada. 10.*« Staff are beginning to gather specific information for the Region 1AA girls softball tournament to be played at Northview Athletic in May. Size of crowds to anticipate, for concession purposes, and maintenance needs are of interest at this point. 11.*« The first year of Bandy has concluded with 25 participants in the grades 3, 4 and 5 age group. The Department is pleased by the efforts of members of Minnesota Women's Bandy in providing an enjoyable learning experience for the youth. 12.*« NYSCA Coaches Clinics, seven (7) and possibly nine (9) in number begin on March 21. Coaches from EAA and the Rosemount Area Athletic Association will participate, sports to be covered include track, soccer, softball and baseball. 11*4 . C The Eagan Stagedoor Performers continue to be dormant. Early discussions of convening a membership meeting in April are being held. 14.*« Recreation staff will be attending seminars and workshops on the ramifications of the ADA legislation. Staff also plan to attend the MRPA Aquatic Conference. t~ Z . E 1 15.*« Two Men's Volleyball teams are representing Eagan at the MRPA Men's State Volleyball Tournament on February 29 and March 1st in Apple Valley. Women's and Co-Rec tournaments will also occur during the month of March. 16.*« Staff has been meeting with Dakota County Highway Department on the design of County Road #30 (Diffley) through the Caponi property. Retaining walls are being looked at as one alternative to reduce impact on the Arts Garden. 17.*« Staff will be reviewing a proposal from U.S. West to install communication equipment at the Lexington/Diffley site. A building of approximately 36 X 12 is necessary to house the equipment. The building would be located next to the water reservoir. 18.*« Staff is preparing a landscape plan for Wescott Station Park. - The park will be the site of this year's Arbor Day Program. 19.*« Design work continues on Blackhawk Park. Construction activities are expected to.be underway this summer. A timeline has been drafted to complete the detail design work and construction document phase, but additional work continues to slow the process. 20.*,, With the close of the skating facilities on February 18th, emphasis of the maintenance division shifted to preparations for this coming spring. Winter operations supplies have been removed from the shelter buildings and put into central storage. Efforts are also being made to remove the snow blowers from the Groundsmaster Mowers and to outfit them with rotary mowing decks. 21.*« Nine new hockey goals were fabricated during the month of February. The new nets will be used to replace some of the older nets that have been in the department's inventory for several years. Other nets are being reconditioned and repaired as necessary. 22.*« Work has been initiated again on construction of the Trapp Farm playground. A number of new wooden benches are being constructed for this facility. Steve Hadden and Alex Lammers have been taking a lead role in this area. 23.*« Several other park amenities were also constructed during the month of February. These included 16 athletic field benches, 24 picnic tables, and miscellaneous park identification signs. Most of these facilities will be located at the newer parks which include Wescott Station, Captain Dodd, Downing, and Bur Oaks Parks. 24.*« A number of repairs and maintenance items were addressed as part of the department's ongoing risk management program. Affected facilities included skating sites, playgrounds, athletic fields, tennis courts, and shelter buildings. The department intends to continue its risk management efforts with completion of a loss control assessment - in conjunction with Berkeley Risk Services - in early spring. 25. *4C The lake aeration system at Fish Lake continued to operate through the month of February. Depending on ice out the system will probably remain in operation through mid to late March. 26.*« On February 26th, Superintendent of Parks, John VonDeLinde presented a session dealing with trails maintenance and sealcoating at the 1992 State Bikeways Conference held in downtown St. Paul. About 75 conference delegates attended the session and had an opportunity to learn first hand about Eagan's innovative approach to trail systems maintenance. 27.*« The City Forestry Division continued on its annual tree trimming program during the month of February. Parks completed under this program included Highview, Country Home Heights, Lexington, and Bur Oaks Park. ¢3. 3 16 28.*« The Parks and Recreation Department submitted three natural resources related grant applications during the month of February, as follows: • Grant proposal for "America the Beautiful" funds for development of the remaining four public information forestry brochures, • Legislative Commission on Minnesota Resources (LCMR) grant proposals for an accelerated urban reforestation project and innovative demonstration treatment system for urban storm water runoff, and • Grant proposal to the Minnesota Small Business Administration for landscaping of the Fagan Municipal Center and County Library. *City Council - March 2, 1992 «Commission Meeting - March 5, 1992 7~ SUBJECT: PRELIMINARY PLAT & CONDITIONAL USE PERMIT (TOWN CENTRE 70 12TH ADDITION) APPLICANT: MIDWEST RESTAURANT ASSOCIATES LOCATION: OUTLOT A, TOWN CENTRE 70 9TH ADDITION EXISTING ZONING: CSC (COMMUNITY SHOPPING CENTER) DATE OF PUBLIC' HEARING: FEBRUARY 25, 1992 DATE OF REPORT: FEBRUARY 18, 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: An application has been submitted requesting a Preliminary Plat for one lot of 1.26 acres for a Class I restaurant and one Outlot of 2.25 acres for future development. Also requested is approval of a Conditional Use Permit to allow on-sale liquor, 3.2 beer or wine, in a CSC zoning district. EXISTING CONDITIONS: Currently the 1.26 acre site is vacant. It is located within the Eagan Town Centre development directly south of Pizza Hut, west of Town Centre Drive, north of Mermaid Car Wash, and east of 'I-35E. The surrounding properties are zoned CSC (Community Shopping Center) and the Comprehensive Land Use Guide Plan designates this area as CSC (Community Shopping Center). SITE PLAN: The site plan shows a 4,880. sq. ft. Applebee's restaurant. The total number of seats, including bar seating, is 181. There are approximately 18 seats at the bar, and 10 high top tables with four seats per table. The remaining 123 seats are restaurant seating. Total parking for the restaurant is 77 spaces. Sixty-one customer parking spaces have been provided (two handicap stalls included) and 16 employee parking spaces. These parking spaces shall be signed and striped. Code requires 60 parking spaces for the 181 seats available. The site is serviced by two access points along Town Centre Drive and the parking lot wraps around the building. The building itself is a brick, one-story building, with signage on the east and south sides. The plans show a 13'x 35' (approx.) concrete patio area on the south side of the building which will be used at a future time as an enclosed group dining area. At that time, it will be necessary to apply for a building permit. For now it will be used as restaurant patio seating. A Conditional Use Permit for the pylon sign is unnecessary due to the Town Centre Pylon Sign Agreement. The pylon will not exceed 125 sq. ft. or 27' in height. All setback and lot coverage requirements meet, or exceed Code requirements. The Landscape Plan provides a mixture of plant material that will blend in nicely with other Town Centre projects. PARKS & RECREATION: The proposal shall be subject to a cash parkland dedication and a cash trailway dedication. GRADING/DRAINAGEIEROSION CONTROL: This site was previously graded in 1985 as a part of the initial development of Town Center 70, therefore, a limited amount of grading will be required to prepare this site for the building and parking lot improvements. Staff recommends that a 3' high berm be constructed along the west property line adjacent to I-35E right-of-way. The berm will provide a buffer and screen to the proposed parking lot of this site. Drainage from this site will be conveyed to the existing storm sewer system in Town Center Drive which drains northerly to Pond DP-4 which is a pond on the City's Comprehensive Storm Water Management Plan. The preliminary grading plan shows construction of storm sewer and catch basins to drain the proposed parking lot that will connect to the existing storm sewer in Town Centre Drive. The proposed storm sewer system on the north edge of the site will require the removal and replacement of Town Centre Drive to connect to the existing 36" line in the street. The proposed driveway on the south edge of the site is shown to be constructed where two existing catch basins are located. The existing castings of the catch basins shall be replaced with a drive-over type grate that will match the concrete apron of the driveway. This development shall extend the storm sewer along Town Center Drive to the south to provide a stub to serve Outlot A. This storm sewer stub will drain the 2.3 acres of Outlot A. In addition, this development shall add a catch basin on Town Centre Drive to the south side of the southerly driveway to handle the 500 feet of street runoff that drains from the south. The development will be responsible for installing and maintaining erosion control measures in accordance with the City's Erosion/Sediment Control Standards. WATER QUALITY: This commercial development is located in Drainage Basin D and will discharge stormwater to Pond DP-4, an existing nutrient basin to the north. Runoff from the site will eventually reach LeMay lake, one of the six Class I lakes whose water quality is intended to be good enough to support direct contact recreation activities. LeMay Lake does not currently meet the water quality standards set for it in the Water Quality Management Plan. The site is too small to accommodate an on-site treatment basin so a cash dedication in lieu of ponding will be required by the city. Based on the actual amount of impervious area shown on the site plan (61%) and the size of the proposed developed area (1.3 acres), the cash dedication requirement is $10,710. That portion of the site platted as an outlot will be subject to an additional dedication when it'is replatted for future development. UTILITIES: Sanitary sewer of sufficient size, capacity and depth has been stubbed to the property from Town Center Drive. The preliminary utility plan shows connecting to an existing 6" PVC sanitary sewer stub by constructing a manhole at the right-of-way line over the stub. Then the 6" sanitary sewer service is shown to be extended to the proposed building. Clean-outs will be required over this 6" line in 100' intervals. ~7 Water main of sufficient size, pressure and capacity is readily available to serve this development from an existing 8" water main in Town Center Drive. The preliminary utility plan shows connecting to an existing 6" stub and extending that line to the proposed building. The existing hydrants along Town Center Drive will provide adequate fire protection to this site. STREETS L ACCESS I CIRCULATION: The preliminary site plan is proposing two driveway openings out to Town Center Drive. The northerly opening shall match the centerline of the existing driveway opening that goes to the shopping center to the east. Concrete aprons shall be constructed at each driveway opening as shown on the site. plan. Also, the parking lot shall be constructed with concrete curb and gutter around the edge of the entire parking lot and it shall be surfaced with bituminous or concrete as per City Codes. RIGHT-OF-WAY f EASEMENTSIPERMITS: This development shall be responsible for ensuring that all regulatory agency permits are acquired prior to final plat approval. FINANCIAL OBLIGATION - Town Centre 70th 12th 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 None There are levied assessments totaling $33,28130 on the parcel, a portion of which will be platted. `T0 " CONDITIONS FOR TOWN CENTRE 70 12TH ADDITION 1. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al, B1, B2, C1, C2, C4, D1, El, F1, G1,&H1 2. The site shall provide an irrigation system. 3. The Conditional Use Permit shall be recorded with the plat at Dakota County. 4. The attached trash/recycling enclosure shall be large enough to contain the trash dumpster and recycling containers. 5. A 3' continuous berm shall be constructed along the property line abutting I-35E. 6. A building permit shall be applied, and approved, for the group dining area. 7. No further building additions may occur unless equivalent amount of parking stalls are provided. 8. All signage shall conform to the Town Centre sign agreement and is subject to the one-time fee of $2.50/sq. ft. 9. This development shall extend the storm sewer along Town Centre Drive to the south to provide a stub to serve the 2.3 acres of Outlot A. 10. This development shall construct a catch basin on Town Centre Drive on the south side of the southerly driveway to handle the 500 feet of street runoff that drains from the south. 11. The northerly driveway opening to Town Centre Drive shall match the centerline of the existing driveway opening to the east. 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 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 I22rovements 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 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 10, 1990 plataprv.c©n LTS #2 Town Centre 70 12th Addition ...r.N J w~~Fa...~• twr M.1 rti.r clot" t~ A To ClaTot t Etl#I ` wm . ~ etwrwr ~ net■ c'J y~•t ow. . I t ~ .~..r y %+/r ,11• aC11•1.u.a ( TOWN NCENMITr vs~.s ' DRIVE . ~ ~i• ~e+ . NtaEa I ~ . ~ Q ~ ;t ° ► oho ~ ~ _ ~ . ~c Z ~r i 3 ~ = I t Q~ .w 'TOWN °UTL°. ENTRE 70 2 LOT 1 t C,7 I= ltq;,41 m i ~ I ~ ~ W (V^ ~i ELEVENTI' A • ' I i-• ~o t p~ !LOCK I N c I n °UTLOT t FRANK§ ` • 1L. 1 I t t" VI ter. .o a NURSERY I DUCKWOOD i• -wnt- < ; AND CRAFTS ' t; 1 I SQUARE ~y yr I , ♦ + i I ADD. 4" t O~J~ ti' l~xrc t ~ ~ R AND B MWO , can AoanaN ADDITION . w•r.wu ur3 TOWN CENTRE 70 TWELFTH ADDITION N Dan-' iron mnn ment .et..r. nete. T~ • D.no[e. Iron monumrnt [nand. No.I: 4 Preliminary Plat vlclrlrv MAP Sec.15' M.xl, .qe.7) e q .w tq Roe D[al119• and utility 91a•me1ts .horn thus •e . •I he[eby -Illy Go Mtdwst -.I..... I A.socl.tes Lislred Patna r.nlp and Title Se-i1-I11. and to their suc....or a and .selgn., that I 111, •urvayed. no Cne ground. tha p[ewrty legal Zing ly described na[eonl Zing 5.0 feet in rldtn and .djoini nq lot line+. Lost said legal description t. a ec[. complete and and M1.9 IS.O feet in ridth and adjoining .c eet acc rate: that this Plat of is true and correct line. unas. othemi- Indicated eo the plats lnall -part.; In- the else, dimen.ions and locations cots rROPRRTT Ds2CRIRIOII o[ all the Dounda[ir of the property, buildings and other lmprovssanta. r olded and vts tble u ordad street.. [old., a o[ puDilcra Outlot A. fight.-o[-ray, ucillty llnr and c ecclons,caunlcipsl W" CENTRE 70 NINTH ADDITION •atbact llne.rnleh [feet aid prowrty ar• correctly Dakota County, Minnesota and se uwtelY horn ha[eont and 1 M1.1 there are no .nc chment. ...Asps. 9•w, a.aemencs, street., coeds, right.-o[-vay. setback ~ ltnea or lmprovemenG• ` MItM1 affect the prope[[Y• rM1lch are or morn ne[eon.' Dated this /rX day of CZ-- 1991. btr, Torn f '.t[s Drive bltale- s surt.w .y /7 ritA ■ -lf con.- curb ad gutter. • X "r' . F7 / All .ur[•c• drainage trs Prapw•d O.".t a .m / Jame. Boe mays R S flow to Torn c.ntra D[iw . A W of 11 Minn. Peg. No. ]095 p•rt N at is sitwted is the back slow e t g +[v / lvt.-rare slghear b, 756. -E. DEVELOPER S ~.S I'a R • ? I'/+r rr n.vr e.w~ a•r..e ¢.gan Tow[ O[[lea Building Mldre.t Ae.uuranG Aswc Lte• C C E r Pa[tner.nlP APPlsbe•'a Restaurant [/o rw•r.l land cerwnv r/o w.lon I.r offlte 3Q Yankee Bquare O[tlw 11 1100 M/dre.t Plaz. suite lox n =1i. t 55403 Z' • r + 7170 Washington Drive Contact, Pat t Bu[[nas 55122 ♦ P A~ Contact. Bruce M111er MDNICIPAL SETBACKS tr♦ ( Building, MneArrt /j ' `J •'¢ri ,.•.nT IasV~ 1{ n nt 70 [seG of ae not of b t ' Ymv. r. a.rn.wr . Sldsyrd 1o het Be- BE -rne oI~ 11 f averT.v Irrv uw Raa[ SO [eat Outlot A ✓ Parking Elevation 901-36 AGVD wont xO feet Sid, ...ryard sS [eatt _ as Re.[ fee NIN Zoning csc - corm[ri.l Shopping canes[ V ) M~ Note No overall 911dln9 is be done Area tabulation ac. ins 1, N1oeR I 55,04D •q. [t. 1.263S4 - MON Btiliti.. are .11 In piece Outl.t A 98.116 .q.ft. 2.35247 Purchaser of Lot 1, Blocs I rtll a submit a site plan on .aid lot. Total. 157,156 •q.[t 3.51597 Sri./7 V/ AN. /rr= T: .4 NT <+rtefT that eada r t. r es ru ar.s.rN refer w street a rsrvle/w b as .r =."'I [ r "I' Registered W DOER14AVE LAND SURVEYING. \ fv M It tae tae f it/rreb. Mal f4ate 11'6 Nt. ~s. frrAne W4Me W PNa, Less, RR~n 11M .%is us• b. 7095 fiRaegalge r i ' O / TR qTF ~ d N B / mooi z \ -{rq O zo- ~ Z OF U ~ TqF Z \ oq'`~ " ZJ \ m 31) 01 Era IM: it I- m Ix P Q1 - a ~ "E~ ~eE' E ^~z ~ c6 m A Sri E_ F°` .t:'S E i i1 X ~~ia E 6 0 ~Ov • C :I: s iZ GI ! 6l:: 1 i„ry cMlh ma oI•n ,gcxRelbn. 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FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF 71 EAGAN SUBJECT: REZONING, COMPREHENSIVE GUIDE PLAN AMENDMENT, PRELIMINARY PLAT, ELEMENTARY SCHOOL #17 APPLICANT: INDEPENDENT SCHOOL DISTRICT #196 CALVIN ZWIEFEL LOCATION: NE 1/4 SECTION 22 EXISTING ZONING: AG (AGRICULTURAL) DATE OF PUBLIC HEARING: FEBRUARY 2S, 1992 DATE OF REPORT: FEBRUARY 18, 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been submitted by Independent School District 196 requesting the following: a Comprehensive Guide Plan Amendment from D-I (Single Family) to PF (Public Facilities), a Rezoning of 15 acres from AG (Agricultural) to PF (Public Facilities), and a Preliminary Plat consisting of one lot and one Outlot for an elementary school located along the south side of Wescott Road and east of Denmark Avenue in the NE 1/4 of Section 22. EXISTING CONDITIONS: This 15-acre site is located south of Wescott Road, east of Windcrest Addition, and west of the Westbury Addition and park. The Windcrest Addition is zoned PD (Planned Development) with R-1 (Single Family) and R-2 (Duplex) abutting this site. Westbury Addition is also zoned PD and with Single Family use. To the north (across Wescott Road) and south of the site, the area is zoned Agricultural. The site is guided D-1 (0-3 units/acre) by the City's Comprehensive Land Use Guide Plan. SITE PLAN: The 15-acre school site will abut Wescott Road and will take access from a newly-created north/south street. The two-story school building is 78,965 sq. ft. and is located on the eastern half of the site. This proposal is very similar to Pinewood Elementary School at Dodd Road and Diffley Road. The main entrance to the all brick building is from the south where the two parking lots are located. The visitor parking and drop-off area has 17 parking spaces and staff parking and the bus loading and unloading lane has 81 parking spaces available. A future drive/access point has been indicated on the plan to where this will occur when the north/south street off Wescott Road is developed further south. The plans show two fields-two softball fields and a hard/soft play surface which wraps west around the building to the north side along Wescott Road. A fence will be placed between the playing field and Wescott Road. The proposed plan meets, or exceeds all setback requirements and parking requirements. COMMENTS: The elementary school has a capacity of 775 children, ages Kindergarten through fifth grade, with approximately 30 classrooms and 40 professional teachers. The school will be open for the 1993 school year. A neighborhood meeting has been scheduled for Thursday evening, February 20, at Oak Ridge Elementary School. (P~ GRADING f DRAINAGE/EROSION CONTROL: The grading that will be required for the proposed elementary school will require cuts of 30' along the east property line and fills of up to 18' in the southwest comer of the site. The construction of the proposed street along the east property line of the site will require grading outside of the plat. At the southerly terminus of the street the grading plan shows a 24' cut. A majority of the site will be disturbed to grade this site. However, the trees along the west property line and in the northwest corner of the site are proposed to be saved. The developer shall provide the City with a tree protection plan and specification defining their efforts to preserve trees during the construction process. The drainage plan for this development proposes to direct the runoff from this site directly to Pond JP-11. The storm sewer that will serve this site will need to be extended by this development along the south side of Wescott Road to the portion of Pond JP-11 that is on the south side of Wescott Road. Pond JP-11 is a designated ponding area in the City's Comprehensive Storm Drainage Plan. The final drainage plan shall include a catch basin at the southeast comer of the parking lot to collect the runoff from the parking lot. The 5 year flow rate in the parking lot at this point is approximately 4 cfs and this is a maximum runoff allowed along the curb. The catch basin shall be located on the upstream side of the future driveway opening that will be constructed when the street is extended to the south. The development will be responsible for installing and maintaining erosion control measures in accordance with the City's Erosion/Sediment Control Manual Standards. Special care shall be taken to minimize erosion from this site into Pond JP-11. WATER QUALITY: The elementary school development will be located in the lower reach of drainage basin J. Stormwater runoff from the site will be discharged first to Pond JP- 11.1, a nutrient trap just south of Wescott Road. After flowing through two other intervening ponds, the water will be discharged to Fish Lake. Fish Lake is designated a Class I direct contact recreation lake but does not currently meet the water quality standards necessary to support all desired uses. The City will accept a cash dedication in lieu of on-site ponding to meet water quality treatment needs. Using the methodology outlined in the water quality management plan, the cash dedication for this development is: 0.41 acres x $23,805/ac. for schools = $ 9,760 1.32 ac. ft. x 1,613 cu. yds. x $2/cu. yd. _ $ 4,750 TOTAL $ 14,510 UTILITIES: The preliminary utility plan proposes to construct an 8" sanitary sewer line from the intersection of Windcrest Avenue and Denmark Avenue to the northeast to serve the proposed school. The sanitary sewer construction will require street removal and replacement of Windcrest Avenue and Denmark Avenue and also the sewer line will cross ~3• through lots along the east side of Denmark Avenue along the north side of the Williams Brothers pipeline. The existing 8" sanitary sewer in Windcrest Avenue and Denmark Avenue have sufficient capacity and depth to serve the proposed school. The preliminary utility plan does not propose to construct any sanitary sewer in the proposed street along the east property line. When the property to the east develops, then sanitary sewer will need to be constructed in the east boulevard of the street to serve that property. Watermain of sufficient size and capacity is readily available to serve this site from the existing 12" trunk watermain in Wescott Road. The preliminary utility plan proposes to connect to the 12" watermain in Wescott Road in two locations and then loop a proposed 8" watermain through this site and around the building to provide adequate fire protection and water supply to the school. The final utility plan shall include water services to the property to the east of the proposed street to serve the future lots along the east side of the street. STREETSLACCESS/CIRCULATION: The preliminary site plan shows a street to be constructed in the northeast corner of the site that would connect to Wescott Road. The street would extend to the south for approximately 400' and the street would be a publicly maintained street built to City standards. At the southern terminus of the proposed street is where the school's driveway would connect. Due to the rolling terrain in this area some fairly steep slopes are necessary to serve the school. The proposed street will have a section of 8% street grade and the proposed driveway to the school off of the street will have a section of 6% slope. The intersection of the proposed street with Wescott Road is shown to be located at a section of Wescott Road that has a 5.68% slope. The proposed street shall be constructed to a 36 foot wide face to face width with concrete curb and gutter. Also, concrete valley gutters shall be added at the intersection of Wescott Road and where the driveway will connect to the proposed street. EASEMENTS f RIGHT-OF-WAYIPERMITS: A 60 foot wide right-of-way is proposed for the street along the east edge of the site as shown on the preliminary plat. Since Lot 1, Block 2 of this addition will not have sanitary sewer service provided to it, the lot shall be platted as an outlot. This development shall be responsible for ensuring that all regulatory agency permits are acquired in a timely manner. The construction of the sanitary sewer line in the easement of the Williams Brothers Pipeline will require a permit to be obtained from Williams Brothers. Also, an easement will be needed for the sanitary sewer line as it crosses through the lots along the east side of Denmark Avenue. The grading work that will be performed outside of the plat along the east property line will require a slope easement from the adjacent property owner. Also, the grading that will be performed in the Williams Brother Pipeline will require a permit from that agency. PARKS & RECREATION: The proposal is not subject to parks dedication. However Public Facilities are obligated to pay toward trails dedication; the amount for this project is $12,810. Staff has concerns regarding tree preservation on this project. There are many mature oak trees. Staff has determined with minimal changes to the grading plan, utilizing minimal height retaining walls or realigning facility locations, many of these trees could be saved. Staff is recommending that the applicant submit a tree protection plan and tree specific preservation revisions to the City prior to Final Plat. FINANCIAL OBLIGATION - Wescott School 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 Water Availability P.F. 52,470/acre 14 ac. $ 34,580 Charge Lateral Benefit P.F. 9.95/ff 691.07 ff 6,876 Water Trunk Storm P.F. .104/sf 609,840 sf 63,423 Sewer Trunk Storm S.F. .069/sf 21,780 sf 1.503 Sewer Total 106.382 There are levied assessments totaling $136,988.92 attached to the parcels, a portion of which will be platted. BPS CONDITIONS FOR ELEMENTARY SCHOOL #17 1. Thees standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al,B1,B2,B3,C1,C2,C3,C4,C5,DI,E1,F1,GI,&H1 2. The applicant shall submit a tree protection plan and tree specific preservation revisions to the City prior to Final Plat. 3. The storm sewer that will serve the site shall be extended to Pond JP-11 by this development. 4. A catch basin shall be added to the southeast comer of the parking lot on the upstream side of the future driveway. 5. This development shall be responsible for providing a cash dedication of $14,510 to meet water quality treatment needs. 6. The final utility plan shall include water services to the property to the east of the proposed street to serve the future lots along the east side of the street. 7. The proposed street along the east property line of the site shall be a public street built to City standards. 8. Proposed McCarthy Drive is to be constructed to 36 foot wide, face of curb to face of curb. 9. Since the proposed 60 foot wide right-of-way is insufficient to accommodate the proposed sidewalk along McCarthy Drive, the development is required to construct the proposed sidewalk on school property. • STANDARD CONDITIONS OF PLAT APPROVAL A. Financial Obligations I. 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 Svecifications 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. ~7 . 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 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 10, 1990 plataprv.con LT S *2 1~0 .~1y1U~.~ .liliilfllQGL_-. . LA _ LANI Itip, 1(01. 51Ai)I tIM. Iat1l",i g ' l.1iV®!,111) 1 I - OBE bi UUU g 1 --'~nT E+K t, ' T NMARK y. a r~ ' MApT AIL E E SCAT t- A j Pj; CaCE LOCATION r AfMCIPAL ? ~IF`ap 6F( z ~--j J '~KER f ItsI ; ffIi NNAI I I CEM7ER I~ =WIND[RESt A~q 7 C1 L r WEST F Dp. - t►_ONhF 2 . ® ~IIII ft`RD c ems. Nn can ( A 11 r1+A~.1 04 k. 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SCHOOL •17 Wf Sf.0i1 ROAN ,-511511 IAGAN, MINNf `IOTA S5121 I &D 096 Q - ..Ir.: I~.3'IXAMONIr VAlll t N ~ I - _ RO'.1 MOIINI. MN tihOM1B N / SEAL ; LOWER LEVEL 879.0 LEGEND EXISTING WATERMAIN 1 EXISTING STORM SEWER RE B 10 ^ r B T'' - -"--P~~ EXISTING SANITARY SEWER INV 8 3.Bp-) ~1-T• PROPOSED WATERMAIN 1 _ rfe • UPPERLEVEL 891. PROPOSED STORM SEWER ` , .I` I 1 - \ PROPOSED swTARY SEWER 994 rs 'I ~~B'!2 S 1 I I RAN DATE JANUARY IS, 1992 ' 11! ! I - • ' MIUNLfa~A ~ r ---_-----1 1-- _ = PIPELINE EASEMENT WIlL1AM5BROTHERS RE 9_949 --12391 N . r IT`V' uzir u RE 9190 INV 9890 T~ V-1Y" ~ .rlr. PJG - a 230.71 \j\ . "IV 993L7 - s..~.....,, ,I-.;......x x,,, UTILITY PI-7 8Q1p1MA/M -x J.+.,R TOR NUT Of THE FIRST HYDRANT 011-0♦ NORTH OF WES[ OTT ROAD, D, D ON N ' DENMARK K AYE • ~ X ELEVATION B8911 I I }Ili J to } ; ~ 7 • i ~~-tL-/-~ ~ ~ o M i a c ~ ,1 w 1 1 - I~ a ~ - !W3 ~ ~ S a e31 1 G733 1 { 1 lb-k 1• '1 , \ \ ` '~A 303 1. ~ ,,'•1. 1 i,~/ . / ` ' lau-- "IT IF I I ~ ~1 t is - I Y ~Y , FINAN OBLIGATION LEGEND ELEMENTARY SCHOOL •1T 7t***c LATERAL BENEFIT WATER WATER AVAILAB FMNI,,RNNESO..DS,:2 ILITY CHARGE rr _'co r t ' . - / ° - ~ •ty,4 ..Jrlw,l r. 1RGw11 U STORM SEWER TRUNK J,~e N ry 7P' ' • , JI•rJJ from ~ 1 A' UTIFIIY F••f NF NT 1•••S owuomo MM I ..,.Y.' l1;. • . ROSEYOIMf. mm SSON ,(L: .•J'.•• : :'f~ "'J•` ; 1;?:..;.'''.'''.:.:;:•:':•:•:•:•:~:•:-:;:;:;;:~:;:•: j!~ SAY N`"'•. ~-1: ~.:F, wf, ' x LN :1~..!1.... ',f t r ► g s•,/` : I. T L L ~ .:vl.,r+.. •:':•:•::41:1( ~ r kto_.W~l i {X~•: • . aft . •.1•.'.:.1.•.•.• , io? 0-04 UALE 1::::• ::t . :.r. . -'J I %r'i;:}:' ''%:5:: ; AREAS t I .'.1.'. YJ. ' , ''.1',''''•'':.'.'.'.'''''''''.'.'.'•-.'.'.• ~ NLN I,I~t I NO .[MS 1! / .,`•S.; '1'\Y .'1 N!•1Uf I OS lR• RCRES i 1 r r. :t:: YM,.... •f Row O] Nms 1YN-IRrlrwrOwrf~rrt d P.-w I rr'.. rrr , Ir• MW..r.lrr r•y .':1..:;..;.;.;.;:'•:• r;•;•;•; TN.I •4?a:•,. Iso.rRls N.+nY~t d ti~l ...:•i•i:•:•:•:a -pw-rr rwri~r.r.+•rr ri ; - '•'IQ'Ifflllr'1".•C:. NA-r rtr..rF n.n.-.w...rN.-. N. "T ! r-+.Y..~ur. w..I ~.r.Y~.... , i.• a... •:f.• v.•.•. I I •'I'•' ` •.Y:;.~.. ..IW NnR.~ ~wrtrwtrrrty..s-r.w . r : I ; •::•.Y.•.•.•.; I - va. . ~r.y.......r rw.1=~ .jy...L.. :•:tii.:~••.. i::'.:..r...r....•'•R I •:w•~ ''',i::;{{:. i "r .;•Y;;.{i:. { ~ rf.RR nfE Ins ..✓,r..."r~rnr•rm.W ~s I I' ~ •i`K LIJ...-: .;'k.•?.': • trrrw ••wN r..rl.. F I 4. •:J•' '.t;:•:•f:; :;i{'•'•'•::,••• % .•'en;o.HeR.w w..+Yr.+rw.•r r-"rr.." Y.. t IrM. Y'!L .•,•,•,•,•,•.•~Yir.. ..1:. • - nwnt sor a.-. Nm.r r.rrr rr 1. 1 { .•J. ;:}:;•J.J 6 h - Mer~Nar•a Ilnre No I~ ..e 'P ...r.•'• - , rw. r...wr.Rl.--t....r 1 .I' . . . •r f.t.•t i 1 :Il• . . . 111x5::• • ''•,.'1:-.• 1 _ .y{ ~ ~ t•. ! :x.1:5.•... ~ , t I Cwnm.-'---- 'll • ••4. - L l-.' r IS't• J I I I 'Irr.n PRELIMINARY PLAT ~I 't' • • y on-a r • ::c`,~*~ WESCOTT ADDITION ka• 1 \ _ flfN ' IND. SCHOOL DISTRICT 196 ~.t I L 893.0 D $97 PAN 1146 1 1 N 3 c.° ~~t ( L'yt 871.0 'A99 ~.0 9 4cKK1N:+t`~ _f I i 1 JP-661 - 880-Q ig 71. 844 4, Ja-67.1'1 ' 1 14JP-( 1( , ~~J ( r `i v h 846.S 8y6.0 VP-67i ` 1 ~'8 i + 7 i 58 1.0- r• +t 1 ~ J~-15 ~ 47. L• ~~y,7~1 i I 2 {'~r¢1 1 i 844.0 Jj f 1 p4 8465 15 16 " ~l~ A c • ~ ':i ~ ~ „ + 1 J-c - I 12. JI 44.0 JP-11 Q I ! 6.5 i ` 8157 fli 8300 JP- 823.8 i ! wEaac~ O J yam- _ 890. 1 ' 834,0 t - (A7 S.T " JP-10 ~0 :~w1 tE 820.8 818.9 830.0 JP-49 -b i -36 818.1 1 - c - f 1 f300 d, :N6tb. _ 1JP-35. ale. 4 ' •le.. j 873,2, 'JP-35 864.8 Q30.0 , 972.1' h r 8727 58.4 { OAS, p- 12 n f ?S7. , 830. {GANK c !111P-QI .~161 I,,~, ~A JJ( PARK i~ 14 If F'.t'c, 6 I 1~ FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN y SUBJECT: COMPREHENSIVE GUIDE PLAN AMENDMENT, REZONING & PRELIMINARY PLAT (DEERWOOD PONDS ADDITION) APPLICANT: TWIN CITIES PROPERTIES LOCATION: OUTLOT D, KNOB HILL OF EAGAN SE 1/4 OF SECTION 21 EXISTING ZONING: PLANNED DEVELOPMENT TOWNHOUSE (PD/R-3) DATE OF PUBLIC HEARING: FEBRUARY 25, 1992 DATE OF REPORT: FEBRUARY 189 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been submitted requesting a Comprehensive Guide Plan Amendment from D-III (Multiple Residential, 6-12 units/acre) to D-I (Single Family Residential, 0-3 units/acre), a Rezoning of approximately 17 acres from PD/R-3 to a straight R-1 (Single Family Residential) removing the Planned Development zoning, and a Preliminary Plat consisting of 28 Single Family lots. The site is located north of Diffley Road (County Road 30) and west of Pilot Knob Road (County Road 31). BACKGROUND: The site is part of the Knob Hill Planned Development that was created on August 3, 1982 and allowed for mixed commercial and residential uses that included 198,100 sq. ft. of office/commercial and 153 units of high density residential. Since its creation, three of the fifteen commercial lots have been developed and 23 townhouse units have been built as part of Knob Hill of Eagan. EXISTING CONDITIONS: The site lies south of existing homes in Engstrom's Deerwood Addition, west of Knob Hill Professional Park, north of Diffley Road, and east of undeveloped Agriculturally-zoned land. The site contains a number of natural wetlands. In particular is a large ponding area on the northeast side of the site. The site is rolling with slopes ranging from moderate to severe. The site vegetation is a mixture of mature and secondary woodlands. COMMENTS: Knob Lane will be extended north and west through the plat and end as a stub street that will provide future access to the undeveloped Agricultural property to the west. Two outlots will be platted to accommodate private streets that will allow a lot layout which is sensitive to the existing conditions. The R-1 zoning district requires an 85' minimum lot width on public streets at setback and a minimum lot size of 12,000 sq. ft. The lots range in size from 12,215 sq. ft. to 50,867 sq. ft. The median lot size is 17,723 sq. ft. As proposed, all lots with frontage to public right-of- way meet, or exceed, the City performance standards of lot width and area. However in an effort to be as site sensitive as possible, the developer has included seven lots that have access to public right-of-way via private roads. Three lots have a "stovepipe" lot configuration. The City Code requires a minimum width of 50' for the stovepipe access point. The applicant is seeking a Variance of 20' from this requirement for Lots 5 and 6, Block 4, and a 30' Variance for Lot 8, Block 3. Additionally, a Variance from the code requirement for concrete curb and gutter for a private road serving more than four homes is requested. The applicant believes an asphalt curb would provide the necessary delineation and run-off routing. This Variance is being asked for only Outlot B. There will be a homeowners' association to maintain the private streets. The developer plans to have a limited number of builders. Because all lots will be custom graded, the developer has interviewed a number of builders and has narrowed the field down to three who they believe will accommodate the site's unique characteristics. Tree preservation should be achieved with a physical barrier. Protection of trees to be saved during site grading shall be enclosed with snow fencing or other suitable material. Also, boulevard trees will be allowed 7' from the back of the curb. PARKS & RECREATION: The Parks & Recreation staff will be recommending to the Advisory Parks, Recreation and Natural Resources Commission at its March 5 meeting that this proposal be subject to cash parkland and trail dedication. GRADINGIDRAINAGE/EROSION CONTROL: This development incorporates a section of land with considerable variations in topography with the maximum elevation differentials of approximately 50 feet. The grading plan incorporates several ponds or wetlands which will be storm water ponds and water quality treatment ponds. The developer intends to perform a limited amount of grading on this site. The grading will be limited to the public and private street construction. The grading required to construct the streets shows a maximum cut of 14 feet and a maximum fill of 4 feet. The preliminary grading plan does not show grading of the lots for house pads. The grading required for the houses will be done on an individual basis with special care taken to save the trees. The preliminary grading plan is proposing to construct two 5 foot high retainingwalls along the southeast corner of the site to protect an area of trees along the private driveway. The developer will be required to submit engineering documentation for staff review and approval for the proposed retaining walls. The preliminary drainage plan proposes to direct the runoff from this site to the ponds and wetlands included on this site. The City's Comprehensive Storm Water Plan identifies only one pond on this site and it is designated as Pond BP-27. The preliminary grading plan shows the construction of a private street from Knob Lane to the northeast that will divide Pond BP-27 into two ponds. The pond located *on the east central portion of the site and on the south side of the private street shall be designated as Pond BP-27. It receives runoff from the existing Knob Hill Professional Park development to the east and the existing portion of Knob Lane. An outlet shall be provided for Pond BP-27 that will drain to the north. The pond located on the north central portion of the site and on the north side of the private street on Outlot B shall be classified as Pond BP-27.1. Pond BP-27.1 currently has a 12" outlet pipe that drains to the north through the Engstrom's Deerwood Addition. Pond BP-27.1 receives direct runoff from a 2-acre area along Deerwood Path in Engstrom's Deerwood Addition plus the outlet for Pond BP-27. The drainage from the portion of Knob Lane proposed to be constructed with this development shall be conveyed to a wetland to the west of Knob Lane which will be classified as Pond BP-27.2. An outlet for Pond BP-27.2 shall be constructed to the east to Pond BP-27.1. The preliminary drainage plan shows the removal of approximately 130' of existing 24" storm sewer along the east side of the existing portion of Knob Lane. The 24" storm sewer shall be relocated to the lot lines that will fit the platting of this site and the storm sewer will be extended to the NWL of Pond BP-27. The final grading plan shall show all building types of the proposed houses and the elevations of the first floor and lowest entry levels of each house for each lot. The elevations of the lowest entry level of houses around.the ponds shall be 3' above the high water level. The development shall be responsible for installing and maintaining erosion control /9. measures in accordance with the City's Erosion/Sediment Control Manual Standards. WATER QUALITY: This single-family residential development is located in the lower reach of Drainage Basin B. Runoff generated by the proposed development will eventually reach Blackhawk Lake approximately 1 mile down drainage. Blackhawk Lake is one of six lakes designated as a Class I Direct Contact Recreation water body in the City's Water Quality Management Plan and does not currently meet the water quality standards set for it. The proposed development contains all or part of several existing wetlands on-site. The City's Water Quality Management Plan identifies two ponds on this site. The most significant is Pond BP-27, a 2.1 acre pond classified as a nutrient trap in the City's Water Quality Management Plan. Pond BP-27.1 lies along the north border of the basin and is classified as a sediment basin. Pond BP-27.1 contains two cells with a small earthen dike in between the two cells. In addition, one other small wetland lies near the western edge of the site which shall be designated as Pond BP-27.2. All wetlands will remain intact and will receive some stormwater runoff from the development. Over 3 acres of the proposed development is already occupied by ponds, so construction of an additional on-site pond to treat runoff is not feasible. However, water quality treatment requirements will be met by raising the normal water level of Pond BP-27 to elevation 886.75 by increasing the wet storage volume of the south cell of BP-27.1 by 0.75 acre-feet. In addition, the developer shall install a skimmer on the outlet of Pond BP-27. UTILITIES: Sanitary sewer of sufficient size, capacity and depth has been provided to this site from Knob Lane and from an existing 27 trunk sanitary sewer that runs along the west side of this site. Water main of sufficient size, pressure and capacity is available to serve this development from the existing 6" water main in Knob Lane and also from a 6" water main stub that was provided to the northeast corner of this site from the Knob Hill Professional Park development. The preliminary utility plan shows extending sanitary sewer and water main in Knob Lane and the private streets and these lines will all be publicly maintained. Sanitary sewer and water main services were not provided to the proposed lots along the east side of the existing section of Knob Lane. Therefore, the developer will be providing services to these lots by open cutting Knob Lane or by extending sanitary sewer and water main along the east boulevard of Knob Lane. The final utility plan shall be revised to show water main services connecting only to 6" water mains that are looped, or 6" water mains that have hydrants on the end of the lines to avoid stagnant water from being provided to the house. STREETSIACCESSICIRCULATION: Access from this site will be provided from Knob Lane which is a 700 foot long street that is publicly maintained. Knob Lane connects to Diffley Road and it has full access with a left-turn lane to Diffley Road. The preliminary site plan shows extending Knob Lane to the north and then to the west for a distance of approximately 700 feet where a temporary cul-de-sac will be constructed. The preliminary site plan also shows two private streets that will be extended off Knob Lane to the east to y serve lots in the wooded areas around Pond BP-27. No access is being proposed off Diffley Road for the lot that abuts Diffley Road. City staff recommends that a concrete valley gutter shall be constructed across Knob Lane at the intersections where the private streets will connect to Knob Lane. RIGHT-OF-WAYIEASEMENTS&ERMITS: The section of Knob Lane that will be built with this project will require a 60 foot right-of-way plus an easement for the temporary cul- de-sac at the west end of this site. This development shall dedicate all easements necessary for the sanitary sewer, water main and storm sewer systems of sufficient width as required by alignment and depth. The proposed ponds shall have easements dedicated over them up to the high water level of the ponds. This development shall be responsible for ensuring that all regulatory agency permits (MPCA, MWCC, MN Dept. of Health, MN DNR, Dakota County Highway Department, etc.) are acquired prior to final plat approval. FINANCIAL OBLIGATION - Deenvood Ponds 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 Lateral Benefit S.F. $17.25/ff 61733 ff S10 649 Sanitary Sewer There are levied assessments totaling $12,432 attached to this parcel. CONDITIONS FOR DEERWOOD PONDS ADDITIONS: 1. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al,B1,B2,B4,C1,C2,C3,C5,El,Fl,G1,&H1 2. A copy of the homeowners' association covenants shall be submitted to the City Attorney prior to Final Plat application and recorded with the plat at Dakota County. 3. A Variance from the concrete curb and gutter requirements for a private street shall be approved. 4. A Variance to the widths of the stovepipe lot access shall be approved. 5. Tree preservation should be achieved with a physical barrier prior to any site grading. 6. Boulevard trees shall be allowed 7' from the back of the curb. 7. The developer will be required to submit engineering documentation for staff review and approval at the time of final platting for the proposed retaining walls. 8. An outlet shall be provided for Pond BP-27 that will drain to the north to Pond BP-27.1 and the outlet shall contain a skimmer. 9. The storm water drainage from proposed Knob Lane shall be conveyed to Pond BP-27.2 and an outlet for Pond BP-27.2 shall be constructed to drain the pond to Pond BP-27.1. 10. The final grading plan shall include a development plan that shows the building type and first floor elevation of the proposed house for each lot. 11. To meet the City's water quality treatment requirements, the NWL of Pond BP-27 shall be raised to elevation 886.75 and the south cell of Pond BP-27.1 shall be excavated to increase the wet storage volume by 0.75 acre feet. 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-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 BPAcifications 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. t er 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 10, 1990 plataprv.con LTS #2 a •s ,b. a , wo .so •a f tl i. KQOB + 6 _ o i e ~ _ '`ao re E cis F JII/ / y~yq ~ _ ~ ,•o - gip: i u ~~o N ~ p II a•t• 6 • J X SYi I ~ t"- 8 x ~ \ V 4..~t^ rF 4g Ff ~^F i~tn , S m ZD x~5~ f^ SL : m -40 C 5 Q.LI uo. 30 (DIFFLEY ROAD) z D b 1~ y` f•'( kc z ° m°if c °a1 f 7°}°^ i D i F :off' : e i p 9 ° i i ky" ~1+~'-- i •.I Ifi ~i~ li 1 pss ° :sE~ ` tc : A i a'' • t o F f 4 F ~Ji• i RI L •L.~ '.Oaf s i,` t ~ aF ~ ' • iz' ^ ` tC pa ~j ~ : 7 1 6 r 4 il~S •_1_._. __.-..J 3mIQ fn :i[ i •:~oar^'F E'-:F dl QY. ' i'F~4 1 4- " b~ :"a -7 r s PPP ' F i ~ ` ti.s._ 's ' i ~ I!~lt~•'DF \ i - Df.ERWOIX + C L La I LOCATION a z~. lag-, _f. ~,~~.k s ~1~ y~F I S-•, Y ~r-Cw1~ r NE ~ PpNVJM. Si ~(VERGR£F K IF W4.E9d. ,s o PIRA ""-fsf/R IIST r[ `d''``~•+ PD~ ZONING 0-4 ~i PF ,.l PF ar Dal r-I a ? GUIDE PLAN au - O-r1 PF r-•. w c-m rt o r " P L 0.4 - of r w _ •+t. n I i r x' N N j t _ N W 3yy3 - % mm O N 0~ W ab / F Z;g { ~J C.S.A.P. UO. 30 (DIFFLLN RD) --4 n f r- D 2A n C, m _Z o _m s m ~3 <o[I : ~odr [ ~ i F o n 6 • z o d ~ v j z ~ D e ~ S~ wee I ` \ . , i~,_,\.~-~'I J•.. ( I ;•S I ~ ~ I - I " : • N .......--"""-i r------"-- L F a I~' r~1 - I~ N •N a e i ~I~ w J m ' t•= ~ N - -Ef r \ oeVl ~ p a ~ ~g c tg s _ eFE / \ r J s < Oi i 9 ~ Z • i J - ~ C.S.A.W U0. 30 (DIFFLEY RD) -----------~`i-~ 6i s aNy@ i9 n I~fl it 44 0+ 2 ~E n •F pFe ~ t rr D E I - ~t~ - - - ~t S I_ N 1~ N / i t ~ , m I~ E ~ o 4 I W 4 i ~I i i gig' ' ~ ~ ~ ~ I Ni J ✓ ~i j' mr _ 1 a _ ~T1tsg IF 11 /17 'oZ ~ S S S Q p n G t . l r ~D f Et ~J h I 86 E' ~ ~ C. 6.A. U0. 3 j (AIFFLLEf RD) pp m '3 m ~ ,i '~'i o oc e Nmi. . I D ' FINANCIAL OBLIGATION ~ - 10 ~.I F~ W ~ - LEGEND --1 LATERAL-BENEFIT SANITARY SEWER - - I~ ; V1C1N►TYMAP .1517 EN DATA _ . u ~ ~ / , • 1 Ill .1. v..~ ucs. oeaca.~~_ Y P I i.-$ \ LONE ti f~f Y nw• r,w R,,,,,,,~~„,~,,,, PRELIMINARY PLAT PNE V.Rtu EoR - r.... C ARENCE KEMP and - - - - - „off DEERWOOD PONDS P - - --'v---- a~r._I1i71.-- wu.na r..•... uc..,a.R«ESOU TWIN CITY pROPERTIES.INC 4 ouw • 4=1 r 1 f1; ` ; 1TT f~ p- ~JII .T F f ; j 7g5 / { / ~T r 1 808. ( 2 41 /46. r#~ 844; 5 _ I N `elf-' ~.(.~li~ir 111 r~1 ~ ! , ' 821 0 ' BP60 12' ,t Jp-4 1 ' 823.8 854.0 27 r9o. ! + . I ! , T92.3. 8040 gP-29 809 + I 1 BP-29.1 Bi8.0 r t f r! w ' 9160 v ' F~ tv ro BP-2 es ~ . BP-33 ~e 869' ! >I s 886.0 4+ -r „ , 895.2 48" - b A ML - F 87 jp 37 r SP -3 8 72.0 889.9 BP-35 1 905.2 , -b I I n IF \15 11 l . A_d 920: z A 2 9 till 1 1 v~ B-s 924.0 886. ~i: 927.2 8 Z:1 n 2 'S 9?5 I B42*~ Bp-5.1 ati 8 .l~.i N A, V f 8 R bJz cB ~'r' e`o 90~ S1 24 920.0 ~ 9130.d ' t 1 ` T 28 B-d ffI ~I f FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN i SUBJECT: COMPREHENSIVE GUIDE PLAN AMENDMENT, REZONING, & PRELIMINARY PLAT (MEGHANS ADDITION) APPLICANT: PULSAR INC. LOCATION: PART OF LOT 19, BLOCK 8, CEDAR GROVE 2ND NE QUARTER OF SECTION 30 EXISTING ZONING: NB (NEIGHBORHOOD BUSINESS) DATE OF PUBLIC HEARING: FEBRUARY 259 1992 DATE OF REPORT: FEBRUARY 18, 1992 COMPILED BY: COMMUNITY DEVELOPMENT DEPARTMENT APPLICATION SUMMARY: Separate applications have been submitted requesting a Comprehensive Guide Plan Amendment from Neighborhood Business to D-III (Mixed Residential, 6-12 units/acre), a Rezoning from Neighborhood Business to R-4 (Multiple Family), and a Preliminary Plat consisting of 13 townhouse lots on 10.6 acres. The site is located at the SE intersection of Diffley Road (County Road 30) and Nicols Road. EXISTING CONDITIONS: The topography of this low-lying site is relatively flat with site vegetation consisting of mainly scrub grass and young secondary tree growth. COMMENTS: The applicant is proposing to rezone the site from Commercial to high density residential with a 104-unit townhouse development consisting of 13 lots on 9.19 acres and 1.4 acres to be a dedicated drainage and utility easement for ponding. Calculating density with a 10% credit for the ponding area results in a net site density of 11.14 units per acres. The R-4 zoning district allows a density of 12+ units per acre. The City Code also allows a maximum building coverage of 20%; this proposal has a coverage of 17%. The site will be bisected by a private street that has access to both Nicoll and Diffley Roads. However, after preliminary review, Dakota County has recommended against the Diffley Road access. There will also be private drives to serve each building. As proposed, all buildings meet Code setback requirements from lot lines, however buildings one and twelve do not meet the 25' minimum setback required from a private street. The remaining buildings meet required private street setbacks. Marv Anderson Homes will build the entire project. The site will be built north to south. The units will be owner-occupied and one homeowners' association and homeowners' agreement will cover all units. The builder anticipates a mix of one and two bedroom units ranging in price from $60,000-$68,000. Typically, with these projects, 65% of the owners will be single, with 35% being young married couples, with a total population around 150 persons. This project will be very similar to the Diffley Commons Addition by Rottlund Companies except the density of the Rottlund project is 7.4 units/acre compared to 11.14 units/acre. All buildings will have maintenance free vinyl siding and each unit will have 1-1/2 baths, appliances, washer and dryer, and possibly a gas fireplace. Interior units will have a single car garage and end units will have the option of a two-car garage; the site does not provide any guest parking areas. Also, landscaped and green areas will be irrigated. The original landscape plan submitted was very similar to that of the Diffley Commons Addition providing a mixture of plant material for year-round color. PARKS & RECREATION: The City Code requires the following site design and development requirements for multiple dwelling sites in Section 11.10, Subdivision 24B.12 "Each multiple dwelling complex shall have a minimum recreation area equal to 200 sq. ft. for each dwelling unit containing two or less bedrooms and said recreation areas shall be a minimum of 100' from any ponding area". This site's recreation area for 104 units requires .47 acres of open space or roughly a 144' x 144' area. 1 GRADING IDRAINAGEIEROSION CONTROL: The area where this development will occur has elevations that are generally lower than on the adjoining roads. The area was graded previously when the Cedar Grove developments were constructed and the material from this site was used for fill to construct the roads in the Cedar Grove area. The low point of Nicols Road adjacent to this site is at elevation 876 and the majority of this site is at elevation 870 or 872. The preliminary grading plan shows cuts of 10 feet in the area where the pond will be created along the northwest corner of the site and fills of 4 feet along the southwest section of the site. The drainage from the majority of this site will be directed to the newly created pond which will be used for a water treatment and a storm water quantity reduction facility. The pond storage volume of the pond shall be increased from 1.1 acre/feet to 1.6 acre/feet to allow for a maximum discharge rate of 2 cfs during a 100 year rainfall event. The outlet for this pond shall connect to the existing storm sewer in Diffley Road which drains to an existing 42" storm sewer in Diamond Drive. The storm sewer in Diamond Drive eventually drains to Pond AP-39 which is a pond on the City's Comprehensive Stormwater Management Plan. The preliminary grading plan also shows approximately a 2 acre section of this development in the northeast corner of the site that will drain directly to an existing 12" storm sewer in Diffley Road. Because of a limited capacity in the existing 12" storm sewer, the drainage plan shall be revised to show that the 2 acre area connects to an existing 18" storm sewer stub on Diffley Road. The drainage from the existing residential lots that abut this development to the east and south is shown to drain across this site to the proposed storm sewer system. The drainage swales that are to be constructed along the east property line shall be a minimum of 1.5% slope to prevent standing water problems. An additional catch basin shall be added in this drainage swale on the east property line to improve the drainage in this 600 foot long swale. Also, the proposed driveways shall be drained by adding a catch basin and constructing storm sewer to the pond or to the existing storm sewer system. Overland drainage from these private driveways to the pond will not be allowed. Furthermore, additional catch basins shall be added along Meghan Lane to collect the runoff from this development so that the flow does not exceed 4 cfs along the curb and gutter during a 5-year rainfall event. Special care shall be taken by this development to save the existing trees along the east and south property lines of this development. The trees will provide screening and buffers to this single-family residential development. 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 proposed multi-family residential development lies in the lower reach of Drainage Basin A. Approximately 8.6 acres of the site will discharge to a new pond that will be created on this site. The remaining 2 acres of the site will discharge stormwater to the northeast to the existing storm sewer system in Diffley Road which eventually drains to Pond-AP-39. Pond AP-39 is classified as a sedimentation basin in the City's Water Quality Management Plan and. the pond is located in between the railroad tracks and the Minnesota River along Nicols Road. ~s Water quality treatment requirements will be met through a combination of on-site ponding , and cash dedication. Stormwater runoff from the 8.6 acre portion of the site that discharges to the on-site pond will be treated according to NURP design standards by providing a minimum wet volume of 0.81 acre-feet, minimum surface area of 0.31 acres, and a minimum average depth of 2.6 feet. The pond also should be designed to have a maximum depth of 4.5 feet below the NWL to discourage weed growth from the middle of the pond. UTILITIES: Sanitary sewer of sufficient size, capacity and depth is readily available to this development along the south side of Diffley Road. The preliminary utility plan shows connecting to the existing 8" sanitary sewer in Diffley Road to serve this site. Water main of sufficient size, pressure and capacity is available to serve this development from an existing 6" water main on the south side of Diffley Road and an existing 16" water main on the west side of Nicols Road. The preliminary utility plan shows connecting to both of these existing water mains and looping a 6" line through the site. The connection of the existing 16" water main on Nicols Road will require the removal and replacement of Nicols Road. The preliminary utility plan shows one 4" water line and one 6" sanitary sewer line being provided to each building. Each water service shall have a gate valve installed on the water line to allow the City to shut off the service. Since the elevations of this site are lower than Diffley Road or Nicols Road, the sanitary sewer to serve this site will be fairly shallow. At the low point on Meghan Lane, the proposed sanitary sewer will be approximately 5 feet deep in the street. The developer shall insulate the sanitary sewer lines and services that do not have at least 4 feet of cover over the top of the pipe. STREETS/ACCESSf CIRCULATION: Access to this development is proposed to be provided from Nicols Road and Diffley Road if Dakota County Highway Department will allow the connection of Meghan Lane to Diffley Road. On Diffley Road, the centerline of Meghan Lane shall match the centerline of the driveway to the school to the north. City staff recommends that a concrete valley gutter shall be constructed across Nicols Road at the intersection of Meghan Lane. As shown on the preliminary site plan, Meghan Lane and the driveways connecting to it will be privately maintained. City staff recommends that Meghan Lane be constructed to normal City standards with B612 or B618 concrete curb and gutter. Also the island that is shown on Meghan Lane at the Diffley Road intersection shall be designed to meet the width requirements of the City's Standard Detail Plate No. 600. The preliminary site plan shows that the private streets off of Meghan Lane to serve the proposed buildings will be constructed with concrete curb and gutter and to a width of 24' face-to-face. City staff recommends that B612 concrete curb and gutter be used on these private streets and then at the driveways to the buildings, a drop curb be utilized. RIGHT-OF-WAYI.EASEMENTS jPERMITS: This development shall dedicate all easements necessary for the sanitary sewer, water main and storm sewer systems of sufficient width as required by alignment and depth. The proposed pond shall have an easement dedicated over it up to the 100 year high water level of the pond. This development shall be responsible that all regulatory agency permits (MPCA, MWCC, Department of Health, Dakota County, etc.) are acquired prior to final plat approval. 6 FINANCIAL OBLIGATION - Meghan's 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 Lateral Benefit M.F. $25.25/ff 712.1 ff $17,981 Water Lateral Benefit M.F. 1955/ff 712.1 ff 13,922 Storm Sewer Storm Sewer M.F. .087/sf 400,416 sf 34.836 Trunk Total S66 739 There are levied assessments totaling $44,338 attached to these parcels. CONDITIONS FOR MEGHANS ADDITIONS 1. These standard conditions of plat approval as adopted by Council action on July 10, 1990 shall be complied with: Al, B1, B4,C1,C2,C4,El,Fl,G1,&H1 2. A copy of the homeowners' association covenants shall be submitted to the City Attorney prior to Final Plat and recorded with the plat at Dakota County. 3. All landscaped and green areas shall have underground irrigation. 4. A Variance to the private street setback for Buildings one and twelve shall be approved per the site plan drawing dated 2/7/92. 5. The applicant shall resolve the Diffley Road access situation with Dakota County prior to Final Plat approval. 6. The original landscape plan prepared by Griswold Associates dated 1/15/92 shall be submitted on an approved grading plan with the Final Plat submission. 7. The storm water drainage from the majority of this site shall be directed to the proposed pond. 8. The pond storage volume of the proposed pond shall be 1.6 acre feet and the maximum discharge rate shall be 2 cfs. 9. The slope of the drainage swales on this site shall be at least 1.5%. 10. The drainage plan shall be revised to include additional catch basins on Meghan Lane to collect the runoff so the flow does not exceed 4 cfs along the curb and gutter. 11. The existing trees along the east and south property lines shall be saved and protected to provide a buffer to the adjacent existing single-family residential lots. 12. To meet water quality treatment requirements, the proposed pond shall provide at least 0.81 acre feet of wet storage volume and a minimum surface area of 0.31 acres. 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 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 tight-of-way in accordance with City Code and engineering standards. D. Public Zmorovements 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 1. All standard platting and zoning conditions shall be adhered to unless specifically granted a variance*by Council action. 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U,1, I 1 I 1 .Y 1• V'.Y: •.:1..,:Y~. , \ ~ \ 1~- ` / / ! a t - r I-iSi? 1 1 I W 1 CEOAA 1 rPr:: ~ _ GROVE I I 1; ll-. ; a•:'• •:•~a•' ••ti••~::•• _________J r ~0' ThDUl~T 10N I 1, .I 1 Y:• •iWY,.;J • .~!y:::: • • I•: ':~t,~,"1:::::' ~ ' I ~ aa• w i t 4 ' b: p!???4:•: : ✓ ate; 'I I y I 1' 1 ~ .'.9..L'. .'.y~lh•M•!1':: I ~ I :y t ~ , r, r• 1 [ i 1 3 SCHOOL 1 { :v • f 1 1 low. 1 , ~,j~ 1 c e•. rr . 3=d I I I ' OUTLOT A :•i;: :a[Fi:. 1 I r ula ~o i I 11 il, ' i I I - ;j µV:4 i se I I „ .i. •i• a o - 1+FI IWO' I 1 a IOWPV~P•~ - - - - - - - - - - - _ I _ SCALE Iw FEf r..+ts , ..-_-~_---r-_..~ I-'--1-t--(`-r--__ IN. IGaa 1 i 1.1.., : u.. wrlw ~ I 1 I I I I ~ 1 1 ~ I / I 1 IA::::: V:: ~w11••IY i 5 1~ -1 ' ~ ' \--1 ' , `_--i - ~ z, ; t.1 ~rw.w L•".~.i,i'..••i z 25 1 : 25 ' b25 III . 1 1 1 ~ ew~•.. r . • r•r I , I .II; 4 • c'~~I n / All d ti . A A- t •A, t Ile 6r" 4 IL - - A-mm j I • 1.ST A' GAN. / if ~ ~ _ ~ y A\ W1 L • P OHAV N 7 5.5 r~ i A Trt, y ' 1 u ty R i, i I rx.t!r1 FN~ A-it . 1 Fig JV"10l0 :.il i fAP- ' :M " i l!, i I 4 , l I HIGH •i'''r ~ttyt(~~ J.'f FIGURE No. 17 STORM SEWER LAYOUT MAP CITY OF EAGAN MEMO TO: EAGAN ADVISORY PARK, RECREATION AND NATURAL RESOURCES COMMISSION FROM: JOHN VONDELINDE, SUPERINTENDENT OF PARKS TOM SCHUSTER, CITY FORESTER DATE: MARCH 25, 1992 SUBJECT: MASTER STREET TREE PLANTING ANALYSIS - WESCOTT ROAD BACKGROUND As the Commission will recall, at the November and February Commission meetings, staff presented a report evaluating the feasibility of implementing a master street tree planting program in the City of Eagan. That study concluded that, of the 84 miles of boulevard included in the evaluation, only about 3.4% (or 4 miles) met the minimum geometric standards for boulevard landscaping. In addition, this study did not take into consideration the presence of underground utilities which could further restrict the viability of such a program. At the November meeting the Commission concluded that a functional and cohesive master street tree planting program would not. be possible given the restrictive green spaces adjacent to the city's collector and arterial streets and along county highways. In the final analysis, the Commission determined that the best opportunities for boulevard planting would probably be along a few selected city streets or along future expansions to the county highway system. In order to keep the planning process moving forward (if even on a limited basis) the Commission gave direction to staff to examine in greater detail the feasibility of developing a "streetscaping" program along Wescott Road between Pilot Knob Road and Lexington Avenue. This particular segment offers some of the widest and most aesthetic boulevard area within the city's street infrastructure. In response, staff have prepared this report analyzing potential planting alternatives within this portion of Wescott Road. The report will include an evaluation of each of the boulevard segments sharing common characteristics (with respect to planting area and underground utilities), provide an overview of alternative planting schemes, present a preliminary planting budget, and discuss several limiting factors which were discovered during the evaluation. EVALUATION APPROACH In early March the Forestry Department contacted the appropriate utility companies to request utility locations along Wescott Road. Investigations were also made with the city's Engineering Department which 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 trails on both the south and north sides. Consequently the planting area available for boulevard landscaping is essentially that green space between Wescott Road and the appurtenant bike trails and sidewalks. Following that determination, measurements were then taken to establish the location of the various underground utilities within these boulevard "strips." To simplify the recordings of our findings, Wescott Road was broken down into various segments. These segments do not necessarily stop or start in driveways or street intersections, but wherever characteristics of the boulevard change from one area to the next. The following discussion presents an analysis of the geometrics and utilities common to each of these sections. BOULEVARD ANALYSIS - SOUTH SIDE L Pilot Knob to Library The boulevard is a consistent ten feet in width from Pilot Knob Road to the east driveway entrance to the Dakota County Library. Planting in this area would be impossible since there is a telephone line approximately six feet back of curb and there is an electric line that runs approximately 8 1/2 feet behind the curb. As the Commission may recall, under current regulations, trees cannot be planted within two feet of any underground utility of four feet within a trail or sidewalk. 2 LibrM to Denmark Avenue On the south side of Wescott Road from the eastern driveway entrance to the Dakota County Library to Denmark Avenue, the grassy boulevard strip is a consistent twelve feet in width. Here again, the telephone line runs six feet back of curb, and the electric line runs approximately 8 1/2 feet behind curb. Based upon the same limitations, this is an area that also cannot be planted between the curb and the trail. However, because the city has the landscaping responsibilities for the Municipal Center and Dakota County Library "campus", it may be possible to do some plantings of overstory trees, or ornamental trees on the south side of the bituminous trail, but not between the street and the trail. From the library eastward, everything on the south side of the trail is private property. While there may be some opportunities to plant there, it would require the acquisition of planting easements from the adjacent property owners. 3. Denmark Avenue to Lexington Avenue From Denmark Avenue eastward to Lexington Avenue the boulevard on the south side of Wescott Road is 14 feet wide. While this would indicate that we might be able to do some planting based upon the ten foot setback from the street, and four foot minimum setback from the trail, there are again significant conflicts with underground utilities. There is a major telephone line that runs down the center of the boulevard strip varying between seven feet and 11 feet from the back of curb. Therefore it appears that the only viable planting opportunity would be on the south side (property side) of the bike trail. However, this again would require the cooperation of the adjacent property owners. BOULEVARD ANALYSIS - NORTH SIDE L Lexington Avenue to Pilot Knob Road The north side of Wescott Road, between Pilot Knob Road and Lexington Avenue, can be considered as one contiguous segment. Throughout this area the boulevard is a consistent 17 feet in width. There is an underground gas line that runs the entire length of this segment approximately three feet behind curb. Essentially then, there is a 14 foot wide clear planting zone from three feet behind the curb up to the edge of the sidewalk. However, as the Commission is aware, there are overhead lines that run the entire length of Wescott Road on the north side, so while planting opportunities exist, the plant material would have to be limited to smaller ornamental trees or larger shrubbery. As with the south boulevard, there exists some possibility of planting trees on the outside of the sidewalk, but since this is all private property the City would be required to obtain planting easements from the owners of the adjacent property. As an additional limiting factor, it should be noted that many of the areas adjacent to the trail would be unsuitable for planting anyway because of the existence of the steep slopes, native vegetation, or landscapes which have already been installed. DISCUSSION/ALTERNATIVES It appears as though our hope for having a fully tree-lined boulevard along Wescott Road are unrealistic. This leaves the possibility of exploring a "modified" landscaping program to overcome the limitations imposed by underground utilities and geometric considerations. The first alternative would be to plant understory or small ornamental trees under the power lines along the north side of Wescott Road. If the Commission wanted to create some type of columnar effect staff would suggest using a thirty foot spacing of the trees with uniform placement between the street and the sidewalk, e.g. eight to ten feet behind curb. This approach to planting would require the purchase of about 170 trees. Based on an estimated cost of $90 per tree (e.g. 1-3/4" diameter crab apple,) this would require a capital outlay of approximately $15,300 for this type of planting. The obvious drawback to this approach, of course, is that a singular row of trees on the north side may to cause a distracting imbalance in the boulevard landscape. Users of Wescott Road may well ask why the trees were planted under the power lines on the north side, and the boulevard left bare along the south side. 1 5. A second alternative is to cluster the trees in small groupings running the length of Wescott Road. Obviously this approach would require fewer trees than a columnar planting. Small groups of trees might be separated from other groups by several hundred feet. This would result in a substantial reduction in financial outlay; it could probably be accomplished in the neighborhood of $5,000 to $7,000. Again it is important to recognize that planting easements would be required in select areas. A third option is to explore the possibility of planting larger overstory trees along the back side of the trail and the sidewalk, on both sides of the road right-of-way. Like the second alternative this approach would require the acquisition of easements for the entire length of the roadway. Another disadvantage of this type of planting is that the trees would end up so far from the street (22 to 26 feet) that the effect of a tree lined boulevard may be so diminished as to render it ineffective. The cost of this alternative would be in the range of $25,000 assuming 250 trees spaced at 40 foot intervals. In summary, staff have concluded that the presence of underground utilities and overhead wires, combined with planting setback requirements effectively negate the establishment of trees on the boulevard strip along the south side of Wescott Road, and restrict the planting to only small ornamental trees within the boulevard on the north side of the road. The development of even a moderately effective landscaping program would require securing of private property easements along portions or all of the Wescott Road right-of-way. FOR COMMISSION ACTION In light of these conclusions and the discussion of alternatives outlined above, staff would appreciate having direction of the Commission as it pertains to the landscaping of Wescott Road. In their discussion the Commission may wish to recommend the following options: 1. To plant understory trees strictly on the north side of Wescott Road, under the powerlines. 2. To obtain private property easements and to plant trees in clusters on areas outside of the city boulevard. 3. To obtain private property easements and to plant trees in a tree lined, columnar form, on those areas outside of the boulevard. 4. To recommend some combined approach of alternatives 2, 3 and 4. 5. To consider some other alternative landscaping concept not addressed in this report, or 6. To take no action, i.e. to leave Wescott Road as it is. y Regardless of which "action" alternative appeals to the Commission (if any,) consideration must also be given to addressing the available options for financing the selected landscaping concept. 0 eLinde of Parks Tom Schuster City Forester JVK/TS/nab 3b:aprnrc.085