Otis W. Freeman Collection. SPC 988-0293
Glass lantern slides.
Scanned at 600 PPI TIFF format, resized to 72 ppi JPEG format.
The lock is a single lift type, 86 feet wide and 683 feet long, with a 15-foot minimum depth over the sills. The vertical lifts average 75 feet. The lock is located on the Washington side of the Columbia River.
Archives and Special Collections, Eastern Washington University Libraries.
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Dams; Locks (Hydraulic engineering); McNary Dam