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pity of <br /> Report Number 11-216 <br /> N HTO Agenda Section VI-7 <br /> the city that works for you Council Meeting'Date August 9, 2011 <br /> REQUEST FOR COUNCIL CONSIDERATION <br /> ITEM DESCRIPTION: CONSIDERATION OF CITY PROJECT 11-15, SUNNYSIDE PARK <br /> AND 1759 LONG LAKE ROAD STORM SEWER RECONSTRUCTION. <br /> DEPARTMENT HEAD'S APPROVAL: <br /> CITY MANAGER'S APPROVAL: `, <br /> piNo comments to supplement this report Comments attached <br /> Recommendation: To authorize City Pri io <br /> 11-15, Sunnyside Park and 1759 Long Lake Road Storm <br /> Sewer Reconstruction and allow the Public Works Director to solicit quotes for this project. <br /> Legislative History:N/A—This is an emergency repair. <br /> Financial Impact: This project is estimated to cost$115,224. <br /> Explanation: <br /> Sunnyside Park <br /> Staff identified several sink holes within Sunnyside Park, and determined that the existing <br /> corrugated metal storm sewer has deteriorated and no longer is able to maintain its structural <br /> integrity. Additionally, the existing pipe flows under a park shelter and the driveway of 2539 <br /> Eastman Drive. The planned improvements will reroute the storm sewer to avoid/limit structural <br /> conflicts and allow improved access for any future maintenance issues. During the plan <br /> preparation it was noted by staff that the existing neighborhood center roof drainage creates a <br /> freezing problem at its northeast corner during the winter months. The existing roof <br /> drainage/down spouts will be redirected to a new yard drain. The proposed improvements <br /> include the installation of 524-feet of storm sewer pipe, 3 storm sewer manholes, and bituminous <br /> removal/replacement. <br /> 1759 Long Lake Road <br /> Staff identified a sink hole in the rear yard of 1759 Long Lake Road, and determined that the <br /> construction joint where the existing concrete storm sewer pipe transitions into corrugated metal <br /> pipe has failed. Further review of the inspection tapes indicate that the existing corrugated metal <br /> pipe also has visible deflections between the sink hole and where the pipe discharges to the lake. <br /> The planned improvements will remove the existing corrugated metal pipe and a small segment <br /> of concrete pipe,to allow for the construction of a new manhole and 140-feet of new storm sewer <br /> pipe. <br /> Costs and Funding: The total cost of this project will paid for from Fund 421, Capital Storm Sewer <br /> Fund. <br /> Sunnyside Park 1759 Long Lake Road <br /> Engineering Estimate $64,356 $22,935 <br /> In-house Engineering&Admin(22%) $14,158 $5,046 <br /> Project Contingency(10%) $6,436 $2,294 <br /> Total: $84,950 $30,274 <br /> c <br /> Craig G chlichting,P.E. <br /> Civil Engineer II <br /> Attachment— Plans dated 7-29-11 <br /> Engineering Estimate <br />