The U.S. Army Corps of Engineers plans to temporarily halt the outflow from Rough River Lake beginning Sept. 18 to assess the impacts that could occur during planned future repairs to the dam’s outlet works. The stoppage will last up to three consecutive days.
Corps officials say a smaller dam located 7 miles downstream should prevent the tailwater from going completely dry.
Dam repairs have been underway for the past several years. The shutdown is a continuation of those efforts to make the dam safe for today and the immediate future, according to the U.S. Army Corps of Engineers’ Louisville District. High rainfall conditions could alter the timing of the shutdown.
Work on the dam’s outlet works will likely occur sometime between fall 2018 and early winter 2019. Engineers will have a better idea of how to facilitate outlet works repairs once the upcoming assessment is complete.
Rough River Lake is a 5,100-acre reservoir located in Breckinridge, Hardin and Grayson counties. Construction of the 135-foot-high earthen dam at Rough River was completed in 1960.
Boating and fishing on the lake will not be affected by the temporary stoppage of the outflow.