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The Dalles Lock and Dam

Date: 1956

The Dalles Lock and Dam was one of the largest, most complete, and complex multipurpose projects of its kind in the United States at the time of its construction. It provided an example for future projects benefitting navigation, recreation, water for irrigation and hydropower, fish migration, and flood mitigation. The unusual "L" configuration of the project enabled reduced construction dewatering and created a permanent shallow stilling basin that aids fish passage.

Tags: Era: 1950s
Innovation designated by:
The Dalles Lock and Dam
Courtesy US Army Corps of Engineers
The Dalles Lock and Dam
The Dalles Dam Visitor Center
3545 Bret Clodfelter Way

The Dalles Dam Visitor Center

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