03-09-1994 Council Agenda - Laserfiche WebLink

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John Mitchell Place 2 February 1994 Page 2 Natural Features The property ranges in elevation from 866.5 ft. at the OHWL to 912 ft. at a point to the north and along Twin Lake Boulevard. A drainage swale located in the southern end of the property connects Vadnais Lake to Twin Lake, and virtually all of the property currently drains to Twin Lake. A 1.1 acre COE wetland is located along Vadnais Boulevard. The site is heavily wooded with a variety of overstory trees ranging from mature oak and elm, to Red and White Pine. The lower eastern end of the site was, at some point, planted with evergreen species which include varieties of spruce and cedar. Access /Circulation Access to the property would be via either Twin Lakes Boulevard or Vadnais Boulevard from the north. Access locations would have to be approved by both the City and the County D.O.T. Utilities The property is not currently served by either sewer or water services. Sewer service would be extended from a trunk line located approximately 300 feet to the west of the property and water is anticipated to extend from the proposed single - family development in Vadnais Heights to the east. Stormwater Drainage from developed portions of the property would flow via sedimentation ponds into Twin Lakes. The flood elevation of the lake is approximately 875, and all residential units would have a lower floor elevation of 878 or higher. Comprehensive Plan The property is currently guided for residential development, not to exceed 5 units per acre. This designation would allow either single - family or low- density townhome development. The transportation plan designated Vadnais Boulevard and Twin Lakes Boulevard as collectors able to accommodate traffic generated by the development of the property. The parks plan does not indicate the need to locate a city park on the property. Proposed Development Pratt Homes proposes to develop the 26 townhome units on the western upland portion of the property. The current concept suggests that the units would be combined into 2 unit structures for a total of 13 structures. The overall density of the development would be 1.5 units per acre. A single divided access drive off Vadnais Boulevard would connect two private interior cul-de -sacs with a 24 foot street designed to City standards with curb and gutter to control storm water run -off. Sedimentation ponding would be located to collect the run -off and prevent it from directly entering either the wetland or Twin Lake. Key to the proposed development concept is the preservation of the site's natural amenities. Through the PUD process, all homesites, driveways and circulation will be designed and located to minimize their impacts on the land. Final grading plans will indicate the use of natural rock retaining walls to decrease grading and preserve slopes and vegetation. Individual lots will include only the building and a minimal yard space for each unit. The remainder of the site will be held by Page 13