Repairs to the metal surface plates of spillway gates at the J. Strom Thurmond Dam (Clark’s Hill, S.C.) that could take up to two years to complete will limit traffic on Highway 221 (Clarks Hill Road).
Beginning Tuesday, Jan. 14, Highway 221 will be down to one lane at the dam as workers will inspect and make repairs to 20 of the 23 spillway gates at the dam as required by the U.S. Army Corps of Engineers’ dam safety program.
To ensure the safety of motorists and workers, traffic lights and warning signs will be erected.
The additional maintenance for the dam was noted during a period from 2010 to 2012 when contractors for the Corps repaired the lifting arms and applied a new protective coating to the spillway gates. During that time, a similar lane closure was in effect.
“These repairs will ensure that we maintain adequate strength and serviceability of the dam,” said Scott Hyatt, operations project manager for J. Strom Thurmond Lake.
The spillway gates are used for the quick release of water from the lake during flood control operations. With all 23 gates completely opened, water can be released at a rate of 1 million cubic feet per second.