Explanation
1. BACKGROUND:
A. Need. This legislation authorizes the Director of Public Utilities to enter into a construction contract with Kenny / Obayashi Joint Venture in connection with the OSIS Augmentation & Relief Sewer (OARS) Project Phase 1; to authorize the appropriation and expenditure of $264,506,000.00 from the Ohio EPA Water Pollution Control Loan Fund (WPCLF); and to amend the 2010 Capital Improvements Budget for the Division of Sewerage and Drainage.
This OSIS Augmentation and Relief Sewer (OARS) project will design a 28,600 foot long large diamter conduit and screen structure to convey Combined Sewer flows from the vicinity of the Henry Street Regulator south to the vicinity of the Jackson Pike Wastewater Treatment Plant. This project is an essential component of the consent order between the City of Columbus and the State of Ohio to reduce the environmental impact of Combined Sewer Overflows (CSOs). The tunnel will intercept wet weather overlows that currently empty into the Scioto River and carry the flow instead to the Jackson Pike and Southerly Wastewater Treatment Plants. The work will include provision for the controlled storage and release of the Combined Sewer flows to pumping facilities and/or treatment facilities when all work is completed. This is the first phase of a two part project. Phase 2, which will include the shaft structures, will be bid in February 2011.
Original Contract (Phase 1) $264,506,000.00
Phase II (Estimate) $ 75,000,000.00
Estimated Total $339,506,000.00
Construction shall be completed in December 2014 to meet consent order requirement. Construction will begin when the notice to proceed issued.
B. Procurement Information: The Division advertised for competitive bid proposals on the City of Columbus's Vendor Services website and in the City Bulletin in accordance with the provisions of Section 329.14 of Columbus City Codes. The Division of Sewerage and Drainage opened the res...
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