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Al Monner news negatives Bonneville Dam (Or. and Wash.) Dams--Design and construction With digital objects
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Cofferdam at Bonneville Dam

A two cranes on a packed-earth platform are in the process of removing a cofferdam around Bonneville Dam. The cofferdam was installed to clear water during a project to replace baffles at the base of the dam (negative 1 of 8).

Monner, Al (Alfred Anthony), 1909-1998

Cofferdam at Bonneville Dam

Baffles on the front of Bonneville Dam exposed by low water behind a cofferdam. The cofferdam was installed to clear water during a project to replace baffles at the base of the dam (negative 4 of 8).

Monner, Al (Alfred Anthony), 1909-1998

Cofferdam at Bonneville Dam

A man in a hardhat stands holding a metal cable beside the top of a cofferdam. Bonneville dam is visible in the background. The cofferdam was installed to clear water during a project to replace baffles at the base of the dam (negative 6 of 8).

Monner, Al (Alfred Anthony), 1909-1998