Agenda - Council - 05/23/1989 - Laserfiche WebLink

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Hakanson Anderson Assoc.,inc. Engineers, Surveyors & Landscape Architects April 4, 1989 Mr. Gerald Zimmerman Ramsey Planning & Zoning Commission city of Ramsey 15153 Nowthen Boulevard N.W. Ramsey, MN 55303 Re: 2nd Revision of North Forty 2nd Addition Preliminary Plat Dear Mr. Zimmerman: As requested, we have reviewed the 2nd Revision of the Preliminary Plat for North Forty 2nd Addition and offer the following comments: North Forty 2nd Addition is a 40.5 acre development with 13 single family lots. To date, soil boring to determine the water table level throughout the plat and soil classifications to determine if the soil is suitable for on-site waste disposal systems have not been provided. Additional area to be dedicated for parkland has been provided around the ponding area on the south boundary of the plat to an elevation of approximately 873 to 874. It is anticipated the high water level will be at an elevation of 873. Consequently, some filling of the wetlands may be required to construct the trail. Since the land dedicated for park is less than 10%, the balance will have to be paid in cash. Easements for the detention ponds and drainageways are not shown on the plans. High water elevations are needed for all the ponds along with the grading plan for the ponding areas to provide for storage of a 100 year storm. As previously stated, none of the detention areas have outlets; therefore, the building elevations of the lowest floor should be set at least three feet above the highest known water levels as stated in the Environmental Protection Ordinance. 2ZZ Monroe Street Anoka, Minnesota 55303 61Z/4Z7-5860 FaX 612/427-3401 Eugene J. Hakanson, RF_ James M. Winter, LS. Lawrence G. Koshak, RF_ Peter P~ Raa~kka,