Title
Recommendation to Award a Contract in the Amount of $2,809,650, Including Contingency, to Ranger Pipeline, Inc. for Construction of Cyclic 14 Easement Sewer Rehabilitation Project, No. P.W. 10-17-44. (Public Works 602)
Body
To: Honorable Mayor and Members of the City Council
From: Jill Keimach, City Manager
Re: Recommendation to Award a Contract in the Amount of $2,809,650, Including Contingency, to Ranger Pipeline, Inc. for Construction of Cyclic 14 Easement Sewer Rehabilitation Project, No. P.W. 10-17-44.
BACKGROUND
The City of Alameda has separate sanitary sewer and storm water drainage systems. Infiltration and inflow is storm water that should enter the storm drainage system but instead enters the sewer system through cracks and other defects in the sewer pipes. Storm water in the sewer system can cause excessive flows during wet weather events that exceed both local conveyance and regional treatment capacity.
Replacement of old, deteriorating sewer main is required for compliance under the Final Consent Decree for Consolidated Case Nos. C 09-00186-RS and C 09-05684-RS, which requires the City to rehabilitate no less than 2.6 miles of sewer main and associated lower laterals and manholes per year, based on a cumulative total. In 2015, the City developed a Sewer Master Plan, which utilized information collected through maintenance, inspection, and monitoring activities to assess system condition and capacity. The results were used to identify and prioritize sewer system capital improvement needs in a 20-Year Rehabilitation Program structured to maintain compliance with the Consent Decree and be consistent with the City's sewer rate structure.
The work in this contract serves as a subset of Project Year 2 and 3 of the 20-Year Rehabilitation Program, where pipe segments are located in easements. As this work is unique from replacing sewer mains in the street, the City separately designed and bid this easement work to ensure a contractor with ...
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