Oahe Dam dam upstream is Garrison Dam, near Riverdale, North Dakota, and the next dam downstream is Big Bend Dam, near Fort Thompson, South Dakota. In September and October 1804, the Lewis and Clark Expedition passed through what is now Lake Oahe while exploring the Missouri River. Oahe Dam was authorized by the Flood Control Act of 1944, and construction by the United States Army Corps of Engineers began in 1948. The world’s first rock tunnel boring machine (TBM) was invented in 1952 by James S. Robbins for the Oahe Dam project, which marked the beginning of machines replacing human tunnelers. The
Norris Dam State Park State of Tennessee in 1953. The state developed the more modern west section of the park in the 1970s, and obtained control of the marina in 1986. The CCC-built area was listed on the National Register of Historic Places in 2014. The older east section of Norris Dam State Park has 19 rustic cabins, a 40-site campground, and a convention house known as the "Tea Room". The newer west section has 10 deluxe cabins, a 50-site campground, and a recreation center. The park offices are located in the west section. The marina is located just west of the dam. Both