CCP 11-09-09 - Laserfiche WebLink

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A massive root ball was observed in the sanitary sewer service to Silver Lake Barbers at 399 Silver Lake Road while televising. This service is shared with the laundromat to the north of the barber shop. The owner of the Barber Shop indicated the service needed to be cleaned every three years to avoid sewer back ups. It is proposed to replace as much of the service as necessary with P.V.C. pipe to eliminate the root problem. Replacing the service at this time reduces the chances of having to excavate the new street in the future. In addition, the sewer shall be separated with new sanitary services to be provided to each building. Per City Code, "A separate and independent sewer is required for every building except where the location of the sewer and the building to be connected reasonably requires otherwise. The City shall determine where separate and independent building sewers are not required. (Code 1966; Ord.No. 314, 2-13-73; Code of 1988; Code of 2001)". WATER SYSTEM IMPROVEMENTS There are two existing New Brighton watermains on Silver Lane. One is a 16-inch concrete watermain, the other an 8-inch C.I.P. (cast iron pipe). This area has soils that have a corrosive effect on the C.I.P. There have been several water main breaks on this street and the removal of the street surfacing as part of the reconstruction gives the City the opportunity to replace watermain. The 16-inch concrete watermain is north of the sidewalk and is not proposed to be replaced; however, the 8-inch C.I.P. watermain, which was installed in 1963, lies approximately under the north curb line is proposed to be replaced. It is proposed to be replaced with 8-inch P.V.C. watermain. Along with the new watermain, new water services and curb stops will be installed between the main and property line, and new valves and hydrants installed. The concrete curb and gutter on the north side will be removed and replaced in order to do the watermain replacement. See the Watermain Replacement Map on page 12. STORM SEWER IMPROVEMENTS The existing storm sewer system collects stormwater from both New Brighton and St. Anthony. The drainage area includes Silver Lane and as far north as County Road E and the Windsor Green Area, as well as St. Anthony on the south. This storm sewer reach is the overflow pipe for Silver Lake. See the Storm Sewer Map on page 13. The majority of the trunk storm sewer will not be replaced. The 21-inch portion of trunk sewer located on the west half of Silver Lane needs to be replaced per the televising and field verification. All manholes will be replaced or reconstructed. A number of catch basin leads will need to be added due to the existing poor drainage and to meet Mn/DOT spread/run-by design requirements. Staff met with the Rice Creek Watershed District on November 3, 2009 to discuss how to bring this project into compliance with the Districts' rules. The impact of Rice Creek Watershed District requirements are not known at this time but will be will be incorporated into plans and specifications and paid for from the New Brighton Storm Water Utility Fund and the City of St. Anthony. 4