Columbia Basin Project, Banks Lake Feeder Canal & Headgates, Grand Coulee, Grant County, WA

Significance: The Feeder Canal and Headgates are a critical part of the irrigation component that was integral to the planning for the Grand Coulee Project. The John W. Keys III Pump Generating Plant takes water from Lake Roosevelt, created by the Grand Coulee Dam in the Columbia River, and pumps it up the steep gorge to the Siphon-Breaker Building, where it empties into the Feeder Canal. The Headgates are near the canal's terminus in an equalizing reservoir, known as Banks Lake. Water flows from the reservoir into the massive irrigation system of the Columbia Basin Project.
Survey number: HAER WA-139-E
Building/structure dates: 1946-1951 Initial Construction
Building/structure dates: 1953-1954 Subsequent Work
Building/structure dates: 1972 Subsequent Work
Building/structure dates: 1978-1980 Subsequent Work