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In the spring of 1952, work was finally underway on the Columbia Basin Project.
The Columbia Basin Project
The biggest challenge in building Grand Coulee Dam was diverting the flow of the Columbia.
Diverting the Columbia River
Grand Coulee Dam: Engineering Challenges
The engineering challenges became apparent as soon as construction got underway.
Grand Coulee Dam: Engineering Challenges
Grand Coulee Dam: Pouring the Concrete
It took millions of cubic yards of concrete to build Grand Coulee Dam.
Grand Coulee Dam: Pouring the Concrete
The Impact of Grand Coulee Dam
Grand Coulee Dam was dedicated in front of a crowd of 8,000 on March 22, 1941.
The Impact of Grand Coulee Dam
Grand Coulee Dam's Open Spillways
This 15-second time-lapse video shows the Grand Coulee Dam's spillway closing.
Grand Coulee Dam's Open Spillways
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