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Preliminary Plat Review: Alpine Acres <br />May 16, 2003, revised June 6, 2003, revised June 20, 2003 <br />Page 3 of 6 <br /> <br />g. Lots 39 through 47 <br /> <br />The driveway collector serving Lots 1 through 16 appears to spill out onto a turfed area. <br />Storm sewer should be used to carry this runoffto Pond 1. <br /> <br />The following locations are areas showing adjacent drainage flowing into townhouse <br />units. Additional detail needs to be provided at each of these locations to illustrate how <br />the units will be protected from flooding and maintain grades of at least one percent <br />around these units <br /> <br /> a. Lots 17 through 20 <br /> b. Lots 21 throu~ 24 <br />.c.. Lots 37 through 42 <br /> d. Lots 43 through 48 <br /> e. Lots 75 and 76 <br /> f. Lots 83 and 84 <br /> o Lots 91 and 92 <br /> h. Lots 99 and 100 <br /> i. Lots 104 through 107 <br /> <br />The location, size and inverts of the equilizer culvert across Alpine Drive should be <br />shown. <br /> <br />10. A table specifying house t'gpe, garage elevation, minimum floor elevations, and street or <br /> drive centerline elevation needs to be provided. <br /> <br />Staff received a revised drainage and grading plan and will provide revised comments that will <br />be incorporated into this review letter at the City. Council meeting on June 24, 2003. <br /> <br />Wetlands: Four wetland areas have been identified within this proposed development. Three of <br />these wetlands are small pocket wetlands less than one acre in size. The fourth wetland is .a <br />segment of DNR protected wetland 114P. These wetlands have been delineated on three separate <br />dates during 2002 by Robert JF Media. Two of the small wetlands are proposed to have minor <br />areas filled. <br /> <br />These delineations need to be verified by the Anoka Soil Conservation District. A permit for <br />wetland filling must be obtained from the Lower Rum River Water Management Organ/zation. <br /> <br />Traffic Generation Analysis: A traffic generation analysis dated April 24, 2003, has been <br />prepared by James Johnson PE. This analysis is an update of a previous traffic analysis prepared <br />for the formerly proposed Villas of Meadow Point on this same site. There has been a net change <br />between tkis and the former proposed development of seven, from 196 to 203 units. The results <br />of this traffic generation analysis show a 2005 levels of service no lower then "C" for the closest <br /> <br />-188- <br /> <br /> <br />