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
Leasburg Dam State Park Leasburg Dam State Park Leasburg Dam State Park is a state park of New Mexico, United States, located on the Rio Grande. It provides opportunities for camping, hiking, picnicking, swimming, and wildlife viewing. Nearby is the historic Fort Seldon State Monument, and to the south is the city of Las Cruces. The dam at Leasburg was completed in 1908. Its purpose is not to hold back the flow of the river, but instead to divert it into a system of canals for use by nearby farms. Known for its rich history, early settlers used the area as a passage to