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M <br />AMEWASO <br />JEAMMM 11ARCWTEWS7[ANNFRS <br />222EASFLIfiLEUNADA ROAD, 5f RAUI, MINNESOFA 55117 612494.0272 <br />MEMORANDUM <br />TO: CITY OF MOUNDS VIEW <br />ATTN: DON PAULEY <br />FROM: DAN BOXRUD)V <br />DATE: OCTOBER 2, 1987 <br />RE: DRAINAGE PROBLEM AT JACKSON AND COUNTY ROAD H2 <br />SEH NO: 87154 <br />We have taken survey elevations on the drainage system just east <br />of Jackson on County Road H2 to determine if it is feasible to <br />drain the low area of the corner lot. Enclosed is a sk-}ch of <br />how a storm sewer pipe could be extended from the most <br />northwesterly catch basin in front of a neighbor's lot to the low <br />poiay for the <br />nd house from <br />thent. cornernthe process, the will need to be removedsand replaced.secWhile replacing <br />it, an appropriate (6`) rise from the gutter elevation should be <br />incorporated. This will help keep street water out of the yard <br />areas. <br />I was not able to do a detailed drainage analysis on the newly <br />installed system. I am confident, however, that the installation <br />of this proposed pipe will not likely allow water to back up into <br />the first yard, and it will adequately drain the yard at the and <br />of a storm. <br />On the enclosed sketch you will also see that we located joints <br />of the existing curb line of County Road H2. The purpose of this <br />was to provide for a permanent set of "hubs" from which <br />measurements can to made to the proposed storm sewer to determine <br />the proper depth of installation. We can work with your public <br />works staff or contractor as appropriate when installation <br />occurs. <br />DRB/kru <br />50ORF ELLK)77 <br />I/ENVICON INC. <br />5F RAW, <br />MINNI"RA <br />i ^oFE./AFALM <br />l%f Y'NSIN <br />