Hamilton County
Owner Reference: W912P525RA001
Bid Date: 07/08/2025 at 11:00am
Pre-Bid: 04/02/2025 @ 10:00am
Estimate: $250.0M - $500.0M
Trades: HC - *General Engineering Contractor GEC: Heavy & Civil Engineering Construction, Infrastructure; Opportunities for Subcontractors
237990 - Other Heavy and Civil Engineering Construction. Amendment 2: Extend the due date for receipt of proposals from 07 April 2025 at 2:00PM Central Time to 08 July 2025 at 11. The scope of this project will consist of the construction of river and middle approach walls downstream from the lock, decommissioning the existing lock, the wet commissioning of the lock chamber constructed in the lock chamber contract, and site restoration activities at the project site. Downstream lock approach walls will be constructed from pre-cast concrete beams that were fabricated in 2012 and are currently stored at another Tennessee Valley Authority (TVA) facility until ready to be installed at the project. The downstream approach wall will extend under and through the Norfolk Southern Railway Bridge. Two (2) new 30-foot diameter mooring cells will be built downstream of the new lock. Once the existing lock is closed, a portion of the lock chamber and the associated wall culverts will be plugged with concrete. A concrete thrust block will be installed to resist concrete expansion in the dam, and the remaining area will be filled with stone. Miscellaneous equipment and buildings will be removed. No cofferdams will be required for decommissioning the existing lock, but installation of needle dams (similar to a cofferdam, but more temporary) may be required for dewatering of the chamber. Bonds required. Prevailing wages.
Andrew Roth
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Owner: US Department of the Army TN
Published 05/17/2025 on Construction Bid Source
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