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Grand Coulee Dam is of the straight-gravity type, depending entirely upon the weight of the structure to resist the pressure of the water behind it, tending to overturn it or cause it to slide on its base. The river canyon was too wide for a dam of the arch type. From elevation 1023.1 downward the upstream face of the dam slopes outward on a 0.15 slope, intersecting as a tangent the curved toe of 20 foot radius rising from bedrock. The downstream face of the dam rises on an 0.8 to 1 slope....
Part of Western Waters Digital Library: http://harvester.lib.utah.edu/wwdl/; Photographer Unknown
Clifford R. Koester
Flumes--Washington (State)--Grand Coulee Dam; Construction equipment--Washington (State)--Grand Coulee Dam; Concrete--Formwork--Washington (State)--Grand Coulee Dam
Construction equipment; Concrete
United States--Washington (State)--Grant County--Grand Coulee Dam site, Grand Coulee Dam (Wash.)
Manuscripts, Archives, and Special Collections, Washington State University Libraries: http://www.wsulibs.wsu.edu/holland/masc/masc.htm
A History of the Columbia Basin Project (Vol. 3, Page 253)-Cage 709: Clifford R. Koester Papers, 1927-1972: http://www.wsulibs.wsu.edu/holland/masc/finders/cg709.htm
To order a reproduction please see: http://www.wsulibs.wsu.edu/holland/masc/policies.htm , or contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
For permission to publish please contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Plustek OpticBook 3600 Plus. Also, 24 bit 150 PPI JPEGs were created with the OpticBook 3600 Plus and added to the CONTENTdm database at the WSU Libraries