Agenda - Council - 01/09/1996 - Laserfiche WebLink

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Review Letter: Nortlffo~ Itasca Shores Final Plat Page 2 of 3 December 5, 1996 landscaped center island in the bubble to break up the spance of blacktop and provide additional area for runoff and snow storage. As the cul-de-sac is proposed to be planed, any center island would be the responsibility of the City. City Staff is recommending that the landscaped center island be platted as an outlot to facilitate ownership by a homeowners association or the corporation. Council approved deviating from the City's grid system and naming this cul-de-sac Andrie Court N.W. Transportation Trails: In accordance with the approved preliminary plat, the Developer is providing a trail south off the end of the cul-de-sac and west to I53rd. This trail would be paved and provide an alternative access to the plat in the event of an emergency. The City does not intend to reimburse the Developer for pavement costs for that segment of trail extending south and west to 153r& Transportation Impacts: On November 20, 1995, the Ramey City Council approved the implementation of a Transportation Impact Fee. If that fee is enacted by April 15, 1996, this plat will be subject to that requirement. Drainage and Easements: The drainage plan which was submitted calls for the installation of a storm sewer down the length of Andrie Court. This storm sewer would collect runoff from approximately 500 feet of Andrie Street N.W. between 153rd and Andrie Court. Currently, the storm runoffmust travel along the curbline of Andrie Street for a distance of 1900 feet before reaching an existing catch basin. The standard for maximum overland flow distance is .700, so this drainage plan will mitigate the current deficiency from this standard. City staff has discussed an alternative drainage plan which would extend the existing storm line south on Andrie Street to comply with the 700 feet overland standard. This option would allow the elimination of the storm sewer proposed down Anclrie Court in Itasca Shores. Either drainage alternative would be acceptable. The rear yards of Lots 7 through 11 can be drained to a storm sewer manhole located in the rear yard of Lot 8. This storm sewer line will carry drainage from a section of 153rd Avenue. The existing storm pipe terminates a short distance north of. 153rd Avenue and it continues to transmit runoff through a ditch. City staff recommends that this ditch be replaced with a storm pipe, however, the Developer may retain the ditch as it is sufficient for drainage providing that it is stabilized and protected from erosion caused by construction activity. Also, since this drainage discharges into a Class A waterbody, Lake Itasca, the Developer must obtain a permit from the Lower Rum River Water Management Organization. Finally, a sedimentation pond is provided for runoff from all paved surfaces prior to discharge into Lake Itasea. The proposed plat does not contain an easement over the area proposed for the construction of the sedimentation pnd. Such an easement needs to be added to the p!at. I I I I I ! I I I I I I I I I I I I I