calsfoundation@cals.org
January 17, 2009
The McClellan-Kerr Arkansas River Navigation System, running through Oklahoma and Arkansas, was authorized by Congress for construction in 1946 but was not fully operational until 1970. Navigation on the river is made possible by a series of eighteen locks and dams along the extensive waterway system. Shown here is Lock and Dam No. 5 located near White Hall (Jefferson County).