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Corps Seeks Contractor for Final Phase of Tennessee Lock Replacement

April 24, 2024   Engineering News Record

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The Chickamauga Lock Replacement Project in Chattanooga, Tenn., is advancing with the U.S. Army Corps of Engineers seeking a contractor for the final phase of work. Officials estimate the price somewhere between $100 million and $250 million, solicitation documents show.


The firm fixed-price contract would cover construction of the downstream approach walls extending under and beyond a railroad bridge, records show. It would also include construction of a pair of 30-ft-dia mooring cells, plus connecting the upstream approach walls to the lock chamber and related work. The contractor would finally be responsible for decommissioning the original lock, installing a concrete thrust block and stone infill to resist concrete expansion and wet commissioning of the new lock chamber.