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• <br /> September 15, 1987 <br /> Mr. Larry Hamer <br /> St. Anthony Village <br /> 3301 Silver Lake Road <br /> St. Anthony, MN 55418 <br /> RE: Proposal for Engineering Services <br /> Wilson Street Area Sanitary Sewer Feasibility Study <br /> RCM File No. 9717024 <br /> Dear Mr. Hamer: <br /> This letter is in response to your recent request for a proposal for a <br /> feasibility study of a relief sanitary sewer to 'improve service and <br /> reduce sanitary sewer flooding problems in the southern portion of St. <br /> Anthony. <br /> We understand that the major basement flooding problems exist along <br /> rieke the Wilson Street trunk line and its laterals generally south of 30th <br /> •carroll Avenue. Apparently because of the large number of foundation drains <br /> muller <br /> associates, inc. discharging to the sanitary sewer, the sewer capacity is inadequate in <br /> architects these areas during major, rainfa�l events. <br /> engineers <br /> land surveyors A possible solution to the sewer capacity problem would be the <br /> construction of a relief sewer parallel to the 18-inch diameter Wilson <br /> Street trunk line commencing in the vicinity of 29th Avenue and <br /> terminating at the metering station on Lowry Avenue. Other relief <br /> points may be appropriate. Determining the feasibility and cost of <br /> constructing such a relief sewer or providing relief at other points in <br /> the system would be the objective of the proposed service. We estimate <br /> that the proposed feasibility and cost evaluation could be prepared for <br /> a fee not to exceed $6,700. This estimate is based on the following <br /> premises: <br /> Dailv flow metering data for the Lowry Street and other meter <br />' stations will be available from MWCC and the data can be used <br /> to develop unit area wastewater flows. <br /> All necessary data regarding sanitary sewer locations, sizes, <br /> slopes, and invert elevations will be provided by the City. <br /> 1 City staff will be available to assist our personnel during the <br /> observation of existing manholes for the purpose of determining <br /> maximum surcharge elevations. <br /> Our findings will be summarized in a letter report which we will <br /> present to and discuss with you and the City Council. <br /> 10 101 red ciicle drive <br /> buy: 1 130 <br /> niiiinelOnka. miiinosote 5:5J43 <br /> 6 9: -6901 <br />