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
Mujib Dam Mujib Dam Mujib Dam () is located in Wadi Mujib, between the cities of Madaba and Kerak, in the Madaba Governorate of Jordan. It is a rolled concrete dam with abutments of clay-core rockfill completed in 2004, after six years of construction. Highway 35, part of the historic King's Highway, crosses the crest. The water it impounds is combined with desalinated water piped from brackish wells along the Dead Sea to the west in a reservoir holding 35 million m (1 billion US gallons) which primarily supplies Amman, to the north helping to ease a very stressed national water supply.