UNDERGROUND MINING
Tennessee Valley Authority completes Boone Dam remediation project The Tennessee Valley Authority has reported that the Boone Dam project in Tennessee, United States, was finished on schedule and on budget.
A diagram of the Boone Dam seepage remediation strategy
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VA discovered seepage beneath the dam in 2014 and rapidly lowered the lake's water level to safeguard public safety, prompting the seven-year dam restoration project to begin in 2015. The $326 million project comprised the construction of a composite seepage
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barrier over multiple phases, including a highly visible two-year, round-the-clock underground cutoff wall.
The project, according to TVA Chief Operating Officer Don Moul, is a major geotechnical engineering triumph.
TVA restored the dam's crest to its previous elevation and built a floodwall when the subterranean work was completed. The project is completed with paving, fence, and site rehabilitation.
"The Tri-Cities region has gotten what TVA promised," he said. "We promised ourselves at the start of this project that we would finish it safely in seven years and that we would do it right the first time
