Agenda - Parks and Recreation Commission - 04/14/2005 - Joint with EPTF

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58 Preliminary Plat and Site Plan Review Rum River Estates April 1, 2005 Page 3 of 5 limited, future street conftections were not provided when the development to the north was. platte~['and much of the southern, boundary of this property is covered by wetlands. Street names must be added to the preli'minary and-final, plat documents. The street names must bb- consistent with the Anoka County grid system. Staff suggests the streel~ ..be 157th. Avenue NW. .. . The preliminary plak is })roposing to provide a private street connection to the south.. The preliminary l~lat should be revised to provide for a future street connection that meets t. he City's public'street standards. ' ' ' ' I0. Grading and Drainage, 'Grading, Drainage and Utility plans hax;e be'eh'prepared by TEC Design'We have some specific comments regarding these plans: ' ' · The minimum floor etevation for all units on the north side of the road must be 870.0 'which is2' feet above the 100 year water level' of the existing and proposed ponds. The new pond in the middle of the S'ite should be connected to the ~Xisting pond i.n River Pines 3rd with a. pipe or ,by excavating to join the ponds. · · The backyard drainage· from lots 7 - 14 taus{ be dkected to a pond and not allowed to mn directly to the . weQands. The run0ffcurren, tlY is directed Off the. Pr6Perty onto the adjacent development:. · A ca.tchbasin must be installed in the cul-deLsac,, paved Swales are' not acceptable for draining runoff from the street to the pond. 'The pond outlet shoul~i: be a. pipe Connected to the Wetland. ~ The- sanitary sewer line to the southeast will ii0t be r~quired, it does not provide the necessary el.er'ali°~n for gravity connection to an existing lift station. The size and depth of-the.proposed sanitary, sewer can 'be reduced. Connection t~' 'the existing lift ~tkfi6h. in RiVer P,1'des~ 3rd. subdivision is still required.i ~ The Street-c'onne~tion .and utility connection~ assume construction oft he Shade Tree 'Cottages development. . C, onstructio?of thi~ develdpment wi!J?re~lui.ir,..e~acqui~i~i6n ;bf e~ements~ pr~pm-atio.n".o~ add}tional plans and ' . construction outside'th~ limits of the property if for any r~as0n the Shade Tree.'Cottages development' is delayed or not c0nstmc~ed. : · 11. WetlamJs. The 'subjeCt' property containS" several', wetlands'. The plans indicate 'the wetlands.have been delineated. ,a/ copy of the d'elineati:ofi':'report muse.be for,,varded to 'the ci.ty.. The r. eport must also be forwarded lo·the Lower Rum Ri'~er Water Management Organization for verification:. The plan !S showing several areas where the weti.ands will be impacted bY c°nstmction. A sequencing plan for the impacts and 'mitigation must be submitted to the city and Lower Rum River WMO. . The development contains wetlands that need to be pr. otected.. Staff is recommending that "No 'MOW:' zones be established along the edge of.the wetland and that appropriate vegetation be' established wi{hin the wetland. Staff would· suggest Obtaining th~ seeding' spec/fi'cations established by MnDot be incorporated into a portion of the wetland area, ..