Green River Lake is a 8210 acres (33 km²)
reservoirA reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
in
AdairAdair County is a county located in the U.S. state of Kentucky. As of 2010, the population is 18,656. Its county seat is Columbia, Kentucky. The county is named for John Adair, then Speaker of the House in Kentucky and later Governor of Kentucky ....
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TaylorTaylor County is a county located in the U.S. state of Kentucky. As of 2000, the population was 22,927. Its county seat is Campbellsville. The county is named for President Zachary Taylor, who served from 1849 to 1850. Taylor is a moist county...
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CaseyCasey County is a county located in the U.S. Commonwealth of Kentucky. It was formed in 1807. As of 2010, the population was 15,955. Its county seat is Liberty, Kentucky. The county is named for Colonel William Casey. It is the only Kentucky county entirely in Knobs region. Casey County is home to...
counties in
KentuckyThe Commonwealth of Kentucky is a state located in the East Central United States of America. As classified by the United States Census Bureau, Kentucky is a Southern state, more specifically in the East South Central region. Kentucky is one of four U.S. states constituted as a commonwealth...
lying in the section of Kentucky known as the Highland Rim. The lake was formed by the
United States Army Corps of EngineersThe United States Army Corps of Engineers is a federal agency and a major Army command made up of some 38,000 civilian and military personnel, making it the world's largest public engineering, design and construction management agency...
in 1969 by impounding the
Green RiverThe Green River is a tributary of the Ohio River that rises in Lincoln County in south-central Kentucky. Tributaries of the Green River include the Barren River, the Nolin River, the Pond River and the Rough River...
. The dam is an 11 mile drive equidistant from the cities of Campbellsville and Columbia. The US$33.4 million construction cost of the Green River Lake Project was authorized by the Flood Control Act of 1938.