Laserfiche WebLink
3.0 Proposed Improvements <br /> 3.1 Sanitary Sewer <br /> The proposed sanitary sewer improvements consist of construction of an <br /> 8-inch pipeline on Edward from the existing sanitary manhole at the <br /> intersection of 33'Avenue and Edward Avenue south approximately 200 <br /> feet to an existing manhole. This pipeline will provide relief for residences <br /> that have experienced backups along 33rd. <br /> Televising of the sanitary pipeline along 33rd revealed portions of pipeline <br /> cracked or with broken portions, offset joints and roots in the pipeline <br /> joints. Two sections of pipeline, between MH 296 to MH 295 and <br /> between MH 257 to MH 256 (see map at the end of Appendix B) the <br /> camera could not get through because ofheavy roots. To clean and install <br /> a new internal liner in all the city mainline sewer pipeline on 33'Avenue <br /> is estimated to cost $77,000, using an Insituform internal lining process <br /> (see Appendix C). SEH•RCM does not feel it is necessary at this time to <br /> reline the city sewer pipeline between MH 254 to MH 255 and between <br /> MH 255 to MH 256. The construction cost to reline the rest of the <br /> pipeline is estimated to cost$62,000 plus contingencies, engineering and <br /> administration. <br /> ' All of the relining of the existing pipeline can be accomplished from above <br /> ground with no excavation and can be accomplished at the time the 33' <br /> Avenue pavement reconstruction is scheduled. <br /> All sanitary sewer castings will be adjusted or replaced to 1/2-inch below <br /> finished grade and will include installation of internal chimney seals and <br /> manhole lid gaskets under the manhole lid and under the steel adjusting <br /> rings. <br /> 3.2 Storm Sewer <br /> 1 The Storm Water Management Plan by WSB completed for the City had <br /> indicated a hydraulic pipeline deficiency at the intersection of 33' and <br /> Edward. Because of rehabilitation of the concrete pavement on 33rd <br /> Avenue,it is proposed that a portion of the storm sewer improvements in <br /> the project area be accomplished prior to the concrete pavement <br /> rehabilitation.. New catch basins will be placed in the Edward intersection <br /> and drain tile is to be installed to help remove some of the subsurface <br /> moisture. <br /> A proposed 30-inch storm sewer pipeline from the intersection of 33rd and <br /> Edward Avenue south on Edward Avenue approximately 50 feet with a <br /> 33fd Avenue Improvements S' <br /> elver Lake Road to Stinson Boulevard A-SANTH9902.00 <br /> St. Anthony, Minnesota Page 3 <br />