TVA announces that Wilson Lock Interim Guard Wall will be Installed this summer
TVA, in partnership with the U.S. Army Corps of Engineers, is implementing the interim solution for the guard wall at Wilson Lock – three, interlocking ocean barges will help guide boats into the lock's main chamber.
This system, which is designed to last between five to ten years, will allow normal operations to resume – supporting more than 11 million tons of goods that pass through Wilson Lock annually.
On May 12, TVA began the mobilization of an interlocking system of three ocean barges and equipment to provide an interim guard wall solution to support navigation traffic at Wilson Lock.
To ensure the barges were ready to be deployed immediately after the Corps finished its repairs and reopened Wilson's Lock main chamber, the ancillary systems, including lighting, handrails, and electrical components, were installed at a docking area near Pickwick Dam in June.
The U.S. Army Corps of Engineers Nashville District is closing the main lock to navigation from July 14- July 28, while TVA crews install the interim guard wall.
The U.S. Army Corps of Engineers is planning to operate and keep the auxiliary lock open for navigation traffic during the installation.
On August 31, 2021, the Wilson Lock floating wall that guides boats into the primary lock lost buoyancy, detached, and sank to the bottom of the reservoir. This was a result of impacts from Hurricane Ida. Inspections showed there were no safety or environmental impacts to the dam.
'TVA and the U.S. Army Corps of Engineers have been collaborating on this issue since day one to ensure impacts to navigation and the industry are minimal. Up until the closure of the main lock in September 2024, TVA's Equipment Support Services Group provided boat support to commercial vessels to maintain navigation traffic. While the interim solution is in use, TVA will continue to collaborate with various partners to seek funding for a permanent floating wall that mirrors the design of the original solution and includes modernized features.'
Tennessee Valley Authority
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