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HomeMy WebLinkAbout06/18/1991, C-3 - SEWERMAIN IMPROVEMENT: SINSHEIMER SCHOOL EASEMENT NEAR SAN MARCOS CT., CITY PLAN NO. R20R. IIII�IyII�Illlll���llunll LL� MEETING DATE city of SA1 ! �S �B�SP� ITEM N 18, 1991 UMB6i. COUNCIL AGENDA REPORT FROM: Dave Romero, Director of Public WorksITw William Hetland, Utilities Director Prepared by: Barbara Lynch, Engineering Assistant SUBJECT: Sewermain Improvement: Sinsheimer School Easement near San Marcos Ct. , City Plan No. R20R. CAO RECOMMENDATION: By motion, approve plans and specifications for Sewermain Improvement: Sinsheimer School Easement near San Marcos Ct. , City Plan No. R20R, authorize soliciting of bids and contract award by CAO if the lowest responsible bid is within the Engineer's estimate. BACKGROUND: The existing sewermain at this location is suspended over Acacia Creek. It is held in place with two concrete piers imbeded in the creek bank. The existing line is leaking in some places and staff is concerned about the possibility of leakage into the creek. One of the manholes has significant root intrusion and will also be replaced. The proposed project will realign the sewermain to place it below the creek flow line. This will prevent leakage and remove the pipe and piers from the creek bank area. The replacement of the manhole will reduce infiltration of water into the system. Alternatives: 1) Proceed with the replacement of the damaged line, preventing further leakage. 2) Do not proceed with the replacement of the damaged line at this time. FISCAL IMPACT: The engineer's estimate for this project is $23,000. The CIP for 1989/91 (page D-22) includes $420,000 for sewermain improvement projects. $96,570 has been spent, leaving $323,430. RECOMMENDATION: By motion, approve plans and specifications for Sewermain Improvement: Sinsheimer School Easement near San Marcos Ct. , City Plan No. R20R, authorize soliciting of bids and contract award by CAO if the lowest responsibele bid is within the Engineer's estimate. (Plans available in Council Office for inspection) P1bmberevMradv.wp