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1b.1. Highlands at Lake St. Joe: Final Plat.u i H, 1 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, .MINNESOTA 55317 .(612) 937 -1900 • FAX (612) 937 -5739 TO: Don Ashworth, City Manager FROM: Kate Aanenson, AICP Planning Director Dave Hempel, Assistant City Engineer DATE: June 26, 1996 SUBJ: Highlands at Lake St. Joe 2 nd Addition, Final Plat Date Suhmit#ed t4 Cgu FINAL PLAT REQUEST Lundgren Brothers is requesting final plat approval for the Highlands at Lake St. Joe Second Addition. This plat includes 9 lots that were a portion of Outlot B of the first phase. This area was not platted as a part of the First Addition because a portion of the property is affected by a Detachment/Annexation Agreement between the Cities of Victoria and Chanhassen (see attached map) - and was in the city of Victoria. On June 6, 1996, the Municipal Annexation Board approved the agreementi and all nine lots in this plat are now located completely within the city of Chanhassen. Outlot A, which is now in Victoria, will be added,to the remaining Boley property and developed through the city of Victoria. The entire: subdivision falls within the jurisdiction of the DNR Shoreland regulation for Natural Environmental Lakes. A city classified natural wetland also exists around Lake St. Joe. The City Council had recommended variances to the shoreland regulations for the lot width requirements for non - riparian lots. COMPLIANCE TABLE BLOCK 1 LOT AREA (Sq. Ft.) Wetland Setback (ft.) 1 59,200 2 28,300 (40 plus 10.30 buffer, avg. 20 feet) motion by WAdwhiwatlw pat's Submitted to Cwmissioit 1 MEMORANDUM Highlands ^ at Lake St. Joe 2nd Addition June 26, 1996 Page 2 3 22,400 4 20,000 5. 20,000 6 20,000 7 21 8 34,000. 9 22,400 OUTLOT A 0.92 acres SITE GRADING, STREETS AND DRAINAGE Site grading; utility, and street improvements for this phase were. completed with, phase I; therefore no additional improvements are necessary. Staff recommends•that arevised development plan showing the dwelling type and elevations be prepared.for the plat. In addition, the applicant shall agree to an addendum to the development contract for Highlands at Lake St Joe. -- SUBDIVISION The following are the conditions of approval for the preliminary plat and whether or. not they . have been met, 1. The applicant shall enter into a development contract with the Crty.and.provide the necessary financial security, to guarantee the installation of the public- improvements. condition has been modified. The Development Contract for the' Highlands of , . This condi ,P Lake St. Joe will be modified by addendum'to include this phase. The. applicant shall consent to the Addendum. FJ f Highlands at Lake St. Joe 2 nd Addition June 26, 1996 Page 3 2. The applicant shall construct public utility and street improvements in accordance with the City's 1993 Standard Specifications and Detail Plates. Detailed construction plans and specifications shall be submitted to the City's Engineering Department for review and formal approval by the City Council. This condition is not applicable. Utilities and streets were constructed with Phase I. 3. The applicant shall obtain all necessary permits from the Watershed District, DNR, Army Corps of Engineers, MPCA, Health Department and MWCC. This condition is not applicable any longer as the permit was obtained with Phase I. 4. The applicant shall provide the City's Engineering Department with storm sewer calculations designed for a 10 -year storm event and ponding calculations that show that the ponds will retain a 100 -year storm event, 24 -hour duration, and will discharge at the predeveloped runoff rate. In addition, the ponds shall be designed and constructed to NURP standards and data showing the nutrient removal capacity of all ponds. The applicant shall not place fill material below the 100 -year flood elevation of Lake St. Joe which the Watershed District currently determines at 949.5. Bonestroo has determined that the 100 year flood elevation is 947.0. Staff is working with the Watershed District to resolve where the 100 year flood elevation is located. The applicant's engineer shall review the possibility of consolidating the two storm water retention ponds located on Outlots A and B to consolidate into one ponding area. The ponding area may be established on either outlot or on Lots 1 or 2, Block 1 outside the wetlands. All storm water retention ponds shall be designed and constructed in accordance with the recommendations provided by the City's storm water management consultant, Mr. Ismael Martinez, as outlined in his memo dated January 15, 1993. This condition has been met. 5. Site restoration, vegetative cover and erosion control efforts shall follow the City's Best Management Practices Handbook for erosion and sediment control. Type III erosion control fence shall be installed at the toe of slope adjacent to Lake St. Joe. In cases where the side slopes exceed 200 feet in depth from the toe of slope, an additional row of Type I silt fence should be installed. All areas disturbed during site grading shall be immediately restored with seed and disc - mulched or wood -fiber blanket within two weeks of completing site grading, except for areas where utility construction will immediately commence. All access points from the construction site to a hard - surface road shall be surfaced with crushed rock in accordance with the City's Best Management Practices Handbook. 1 Highlands at Lake St. Joe 2 nd Addition June 26, 1996 ' Page 4 This condition is not applicable. 6. All access points to the water retention ponds should be dedicated on the final plat as 20- foot wide drainage and utility easements. The access points for maintenance purposes ' shall be a minimum of 4:1 slopes. Drainage and utility easements shall be dedicated over all wetlands and water quality /retention ponds on the final plat. This condition has been met. 7. The applicant shall place a sign on barricades at the end of the southerly and westerly street extension into the city of Victoria indicating, "THIS STREET SHALL BE EXTENDED IN THE FUTURE." Notice of the extension shall be placed in the chain -of- title of each lot. All street intersections should be aligned perpendicular to each other. ' This condition is still partially applicable. Barricades have been or will be installed shortly. The notice of future street extension shall be placed in the chain of title of each lot. 8. The pending assessments for the Minnewashta Parkway improvements (Project No. 90- , 15) shall be spread equally over the number of new lots in this phase of the development. This condition has been met. 9. Compliance with the Park and Recreation Commission's recommendations. The City Council recommended acceptance of park fees in lieu of land dedication. These fees will be paid on a per lot basis at the rate in force upon building permit application. The current residential park fee for single family dwellings is $1100 per unit. The City Council also recommended that full trail dedication fees be paid in lieu of a trail easement. These fees are to be paid on a per lot basis at the rate in force upon building permit application. The current residential rate for single family dwellings is $367 per unit. 's 10. Compliance with the city's wetland regulation including permanent monumentation p staking setbacks and native vegetation. The wetland in the southwest corner needs to be reviewed and compliance with the wetland standards as determined by its classification. a. The wetland adjacent to Lake St. Joe requires a 60 foot setback from the edge of a wetland with a 20 foot buffer strip. This buffer strip may average 10 -30 feet. This s condition has been meet on Lot 1. i Highlands at Lake St. Joe 2 °a Addition June 26, 1996 Page 5 b. The other wetland is located in Outlot D and Lot 6, Block 3. The city has classified this wetland as Ag/Urban. The setback of 50 feet must be maintained, with the 10 feet adjacent to the wetland being a landscape buffer. The buffer strip shall be identified by permanent monumentation approved and accepted by the city. (This condition applies to Lots 8 and 9). 1 11. t P� Compliance with the Building Official's recommendations. a. The street names have been approved. b. Details on corrected pads must be furnished to the Inspection Division. Pads that are corrected at the time streets are installed should be submitted to the Inspections Division before City acceptance of the subdivision. Data on lots that are individually corrected shall be submitted before a Certificate of Occupancy is issued. Details on corrected pads should include a soils report compaction tests, the limits of the corrected pads and elevation of the excavation. C. A 5 foot drainage easement with a drainage swale between shall be required at each side of the property line where the lots have narrow street frontages. This condition has been met. d. Indicate proposed dwelling type using standard designations along with lowest floor elevation. This condition has been met. 12. Variance from the lot width requirements from the shoreland regulations be given on Lots 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25 and 27, Block 1, for the following reasons: (Lots in the final plat given variances are Lots 1, 3, 5 and 6, Block 3 and Lots 8, 9, 10, 11, and 12, Block 1). a. All lots abutting Lake St. Joe meet the 125 foot lot width, only lots not adjacent to the lake are recommended for a variance. b. Requirement of making the lots conform to the 125 lot width requirement will not affect the density of the project. C. The MnDNR's shoreland regulations regarding lot widths on non - riparian lots are inappropriate when applied within the metro area. Not applicable with this phase. 1 1 ' Highlands at Lake St. Joe 2 nd Addition June 26, 1996 Page 6 13. Compliance with the city's landscaping plan including streetscape along Minnewashta Parkway and the requirement of one tree per lot. This condition has been met. A landscaping plan has been provided showing streetscape along Minnewashta Parkway and one tree per lot. 14. The existing dock on Lake St. Joe from the Boley property shall be removed. This condition is still applicable. 15. The lots which are partially in the city of Victoria shall be platted last in order for the two cities to work out an annexation - detachment agreement. If no agreement can be made between the cities, the Declaration of Rear Yard Easements, drafted by the applicant's attorney and approved by the City Attorney, shall be recorded with the subdivision, apprising homeowners of the city limits and restrictions to its use. i condition has been met. These 8 lots have been designated This as Outlots D and E g and will be platted at a later date. RECOMMENDATION "The City Council approves the final plat for the Highlands at Lake St. Joe Second Addition #93 -1 including 9 lots and 1 outlot, as shown on the plans dated June 20, 1996 and subject to the following conditions: 1. The applicant shall enter into amended development contract for the Highlands of Lake St. Joe with the City. 2. Site restoration, vegetative cover, and erosion control efforts shall follow the City's Best Management Practices Handbook for erosion and sediment control. All access points from the construction site to a hard - surface road shall be surfaced with crushed rock in accordance with the City's Best Management Practices Handbook. , 3. The applicant shall place a sign on barricades at the end of Ridgehill Road street extension into the city of Victoria indicating "THIS STREET SHALL BE EXTENDED IN THE FUTURE." Notice of the extension shall be placed in the chain -of -title of each lot. All street intersections should be aligned perpendicular to each other. 4. Compliance with the Park and Recreation Commission's recommendations of acceptance of park and trail fees in lieu of land dedication. These fees will be paid on a per City Ordinance, 1/3 at the time of plat and the remaining 1/3 with the building permit. The t Highlands at Lake St. Joe 2 nd Addition June 26, 1996 Page 7 current residential park fee for single family dwellings is $1,100 per unit. Full trail dedication fees will be collected in lieu of a trail easement. These fees are to be paid on a per lot basis at the rate in force upon building permit application. The current residential rate for single family dwellings is $367 per unit. 10. Compliance with the city's wetland regulation including permanent monumentation staking setbacks and native vegetation. The wetland in the southwest corner needs to be reviewed and compliance with the wetland standards as determined by its classification. The wetland located in the rear of Lots 8 &9 has been classified as Ag/Urban. The setback of 50 feet must be maintained, with the 10 feet adjacent to the wetland being a landscape buffer. Lot 1 requires a 60 foot setback with a 20 foot buffer. The buffer strip shall be identified by permanent monumentation approved and accepted by the city. 1 11. Compliance with the Building Official's recommendations. 11 �1 a. Details on corrected pads must be furnished to the Inspections Division. Pads that are corrected at the time streets are installed should be submitted to the Inspections Division before City acceptance of the subdivision. Data on lots that are individually corrected shall be submitted before a Certificate of Occupancy is issued. Details on corrected pads should include a soils report compaction tests, the limits of the corrected pads and elevation of the excavation. PROPOSED MUNICIPAL BOUNDARY 'CHANGES J r PUBLIC HOAR 59,200 SF. 29,300 SF. 22,400 SF. 20,000 SF. 20,000 SF. 20,000 SF. 2,.700 SF. SA,000 SF. 22,400 SF. I - -LUNDGRIEN BROS. CONSTRLPCT►ON/-BOLEY PROPERTY' BOUNDARY LINE PROPOSED BOUNDARY OF CHANHASSEN PORTION OF HIGHLANDS ON LAKE ST. JOE PREPMED FOR UM MEN OW& COMM NC. BY. SaHIE - MMOGUIST: 06M BOLEY PROPERTY (HK*LANDS ON LMT Sr. JOE > CONCEPT SKETCH 10/13/94 , FMvem U/2M REVOW 121 =0194 FEVOW 3n4roa Q rc 0 EXHIBIT m mm