One lane of U.S. Highway 221 at Thurmond Dam will be closed during a repair project that could take up to two years.
The project, which consists of repairs to dam gates, is scheduled to begin Tuesday.
In September, the U.S. Army Corps of Engineers awarded a $2.6 million contract to Construction Services Group from Charleston. Subcontractors, including Augusta Industrial Coatings, will assist in the repairs.
According to a corps release, the repairs should not affect lake levels.
From 2010 to 2012, contractors repaired the lifting arms and applied a new protective coating on the spillway gates as part of the American Recovery and Reinvestment Act, which resulted in a similar lane closure on U.S. 221. During that project, the corps was required to maintain lake levels at least two feet below full pool to ensure worker safety.