Newly released reports from the U.S. Army Corps of Engineers document the problems at Wolf Creek Dam.
The documents show the dam passed major inspections in 1994 and 1999 before showing serious signs of strain in 2004.
Such trouble signs included expanded wet areas on the backside of the 4,000-foot earthen portion of the dam, which holds back Lake Cumberland.
High water pressure readings were also found in soil monitors and cracking in the pavement of U.S. 127, which runs atop the dam.
The 1994 inspection report concluded “overall, the entire project is in good condition.”