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
Beaver Dam, Kentucky Beaver Dam, Kentucky Beaver Dam is a home rule-class city in Ohio County, Kentucky, in the United States. The population was 3,515 at the 2010 census. It is named for the Beaver Dam Baptist Church which predates the town by several decades. The city was formally incorporated by the state assembly in 1873. Beaver Dam is located at (37.407143, -86.877752). According to the United States Census Bureau, the city has a total area of , all land. Beaver Dam is located at the junction of U.S. Routes 62 and 231. The climate in this area is characterized by hot, humid