Cumberland River intertwined with story of U.S. Army Corps of Engineers
A Derrick arrangement is in the pit during the construction of Lock 4 Oct. 26, 1894, on the Cumberland River in Tennessee. The lock and dam were constructed to establish a navigation channel. The lock and dam were replaced by today's modern system of dams. (USACE Photo)

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Photo by: USACE Photo |  VIRIN: 941026-A-A1409-1012.JPG