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CASE # <br /> <br />CONS[DER STOIhM SEWER IMPROVEMENTS AT 168TH AND TH 47 <br /> By: Leonard Linton, Civil Engineer II <br /> <br />Background: <br /> <br />Star!' received a call from a resident after the recent heavy rains regarding, the level of <br />waLcF in the adjacent pond. Staff visited the site and found that the water'level in the <br />[~ond was elevated. The site is north of 168th Avenue and west of TH 47. There is a <br />ckainage route out of the pond, it includes the ditches along 168th Avenue, a culvert under <br />TJ~¢ 47 and ponds, swales and a pipe across the Rum River Hills Golf Course. The_ pipe <br />m~cter 1.68t~ Avenue was not draimng so the water was pumped over 165th. The system <br />downstream across the golf course was flowing; however it drained-slowly. The water <br />Gows into the Rum River'on the east side of the golf course. The size of the pipe was <br />c;~ecked after ~he water level was lowered. The pipe may be too small for the area <br />draining to it. <br /> <br />A ciraJnage study should be performed to verify the size of pipe required for this area. <br />Thc analysis can be performed by city staff. The pipe is on the golf course; however, <br />water from the city storm sewer system passes through it so participation by the city is <br />warranted, r£ replacement of the pipe is justified it must be coordinated With the off- <br />season of the golf course. The optimal time for replacement of th~ pipe may be after the <br />~otmd fi'eezes to prevent damage to the turf surface. <br /> <br />Rec o mmendation: ~: <br /> <br />$~;~: recommends performing the drainage study to analyze this area and provide a <br />recc>mmendation for improving the performance of the drainage system. An a~eement <br />would be drafted with the golf course to divide the costs of[he improvements and <br />provide access to the site to perform the work. The project would be brought back to the <br />City Council for authorization of the solicitation of bids and construction of the <br />improvements. <br /> <br />Ac[ion: <br /> <br />Morion to recommend city council authorize the drainage study for the area around 168th <br />a~l~ 7'EI 47. <br /> <br />Reviewed By: <br />,~.~istant Director of Public Works/P~ncipal City Engineer <br /> <br /> <br />