The Wolf Creek Dam is a multi-purpose dam on the Cumberland River in the western part of Russell County, Kentucky, United States. The dam serves at once four distinct purposes: it generates hydroelectricity; it regulates and limits flooding; it releases stored water to permit year-round navigation on the Cumberland River; and it creates Lake Cumberlan…The Wolf Creek Dam is a multi-purpose dam on the Cumberland River in the western part of Russell County, Kentucky, United States. The dam serves at once four distinct purposes: it generates hydroelectricity; it regulates and limits flooding; it releases stored water to permit year-round navigation on the Cumberland River; and it creates Lake Cumberland for recreation, the largest man-made lake by volume east of the Mississippi river. The Lake has become a popular tourist attraction.U.S. Route 127 runs across the top of the dam but is being relocated downstream.