NASHVILLE, Tenn. (March 6, 2013) – The U.S. Army Corps of Engineers Nashville District poured concrete for the last pile of the barrier wall today, which completes the last and most critical component of the dam safety project required to mitigate seepage through the karst geology deep in the foundation of Wolf Creek Dam’s embankment. It is the last of 1,197 piles that are approximately four feet in diameter and extend up to 275 feet into bedrock below the foundation of the embankment. Altogether they interlock to form the barrier wall.