Owyhee Dam A project of the Bureau of Reclamation, they hired General Construction Company from Seattle to build the dam. Former Oregonian and then United States President Herbert Hoover dedicated what was the highest dam of its type in the world on July 17, 1932. Secretary of the Interior Ray Lyman Wilbur delivered Hoover's message at the dam. Owyhee's construction served as a prototype for the larger Hoover Dam on the Colorado River, including the use of refrigeration to cool the concrete. The dam cost $6,000,000, with the total reclamation project costing $18,000,000. Owyhee was designed by Frank A. Banks, who also
Gongboxia Dam reservoir began in August and in 2006 the project was complete. Gongboxia Dam The Gongboxia Dam is a concrete face rock-fill embankment dam on the Yellow River in Longhua County, Qinghai Province, China. The dam supports a 1,500 MW hydroelectric power station. Construction on the dam began in July 2000 by diverting the river and by August 15 the next year, the river was diverted and excavation began on the foundation. On August 1, 2002, workers began to create the embankment and by October the next year, the dam's body was almost complete. Concrete pouring on the face slab began