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
Green River Crib Dam is about long, with a maximum height of , and spans the river in a semicircle open to the downstream side. The material of the dam mostly logs and rubble, with plank facing. The abutments of the dam are now a combination of stone and concrete, the wing wall on the east side extending downstream toward the bridge, where it formed part of the foundation of a now-destroyed mill. The earliest recorded documentation of a dam on this site dates to 1811, when Jonah Cutting is known to have a paper and linseed oil mill operating at the site. Some