Grand Coulee Dam (Wash.) -- Design and construction
West cofferdam, March 31, 1935. Length, 3000 feet, height 115 feet, over 17,000 tons steel piling, constructed in ninety days.
Northwest Room. Spokane Public Library.
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“GrandCouleeDam. NWC019.014,” Spokane Public Library, accessed September 19, 2021, https://lange.spokanelibrary.org/items/show/2023.