Agenda - Council - 12/19/1989 - Laserfiche WebLink

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Hakanson Anderson Assoc.,Inc. Engineers, Surveyors & Landscape Architects September 26, 1989 Mr. Gerald Zimmerman, Chairman Ramsey Planning & Zoning Commission City of Ramsey 15153 No?=hen B!vd. Ramsey, ].:K 553C3 Ncrtk ?crty 3rd Ad~±ticn Preliminary Plat Review Dear Mr. 2immerman: As re.cuested, we have reviewed the preliminary plat for North Forty 3rd Addition and offer the following comments: 2) 3) residenUiai lots. Ail of the lots meeZ the City's m!nimum w.a~h and area re.~uirements cf 200 feet and 2.5 acres, respectively. 5) According to the Anoka County Soil Suz-vey, soils in the area consist of Hubbard coarse sand with the exception of Lot 2, Block 1 which has an area with high water. Based on the soil borings, the water table on the site varies from elevation 867 to 871. Therefore, all the proposed lo~s have adequate Class I soils for on-site wastewater disposal systems. In review of the proposed drainage improvements, it is proposed to pond all the runoff on the plat. in review of the drainage c~lculations and the grading plan, all of the drainage areas with the exception of area E do not provide for adequate storage. Since none of the detention areas have outlets, the building elevations of the lowest floor should be set at !oas; three feet above the highest known water levels as stated in the Environment~! Protection Ordinance. In review cf access to the plat, the primary access will be from Armstrong Boulevard N.W. (County Road No. 83). The proposed access to the County Road should be reviewed by the Anoka County Highway Department. The proposed plat is proposed to connect to the existing streets in the surrounding Whispering Pines Estates development. 222/Vtonroe Street Anoka. Minnesota 55303 611/427- 5860 Fax 612/427-340! Eugene J. Hakanson, RE James M. \Mnter, LS. La~¢ence G. Koshak, RE Peter P,. P,a~kka, EL