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<br />, <br />. <br /> <br /> <br />Howard R. Green Company <br />CONSULTING ENGINEERS <br /> <br />rMS~ <br /> <br />IOISliLmG &~GlMW <br /> <br />Formerly MSA <br />Consulting Engineers <br /> <br />October 3. 1997 <br />File: 260078m <br /> <br />Mr. Jim March, Administrator <br />City of Centerville <br />1880 Main street <br />Centerville, MN 55038 <br /> <br />RE: EAGLE PASS - DRAIN TILE INSPECTION <br /> <br />Dear Mr. March: <br /> <br />At the September 24th council meetirJg, Councilmember Brenner requested a written'esponse <br />to an issue that developed during that same afternoon. During the boring of an underground <br />utility crossing under Dupre Read, water was found in the boring pits either side of the road, and <br />the drain tile was not visible on one side of the road. Workers digging in the area also did not <br />find the geotextile fabric. <br /> <br />We met with the Contractor to discuss this issue or: Friday, September 26th. On Wednesday, <br />October 1 st, the Contractor completed Some test digging to try and locate the drain tile and <br />fabric and determine if the system was working, <br /> <br />Below is a list of the questions Councilmember Brenner asked us to address: <br /> <br />Question: <br /> <br />What is the Current situation? <br /> <br />The current situation is as follows: <br /> <br />· Test digging was completed last week at the identified area with potential <br />problems. <br /> <br />· The geotextHe fabric and drain tile was observed under the curb and gutL:r. <br /> <br />· The digging showed the water levels are normal, the tile and sand is fun::tioning, <br />however. when water was introduced by a hose into the tile line. the line <br />appeared plugged on one side of the mad. <br /> <br />· After additional expiorati'on, the contractor located and repaired the tilt, in two <br />different segments At One segment, a iength of tile was missing. The contractor <br />referenced this in his letter dated October 3; 1997. .A.t another segment, the tile <br />was collapsed. Each problem area was repaired. <br /> <br />· The Contractor has agreed to perfoml additional testing and correctIve m t~aSures <br />to the tile system. <br /> <br />~ <br /> <br />[1 I/3[1 . d <br /> <br />"")I')C I:'_......_.~n......l. ....._..._ . _. _ . .... __ __ <br /> <br />'!"S:TT '!"66T-[[1-1JCI <br />