River Diversion
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Title |
River Diversion |
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Title Caption |
The most precarious, and perhaps the most spectacular phase of the construction program, was the diversion of the river. This matter of river control required an exacting performance of construction operations to conform with the cycles of river flow. Excavation for the cofferdams totaled 1,328,735 cubic yards, and the fills 1,502,000 yards. The contractors reported the cost of river diversion to be nearly 6,000,000. MWAK Co. removed a pay quantity of common excavation for the dam foundation amounting to 14,705,378 cubic yards, and rock excavation of 1,083,703 cubic yards. Depths to bedrock varied from 50 feet in the river bed to 275 feet at the abutments. There was a normal reaction of a slight uplifting of bedrock as the pressure of the overburden was removed. |
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Description |
West bank river diversion for excavation and construction of the first phase, or base, of the Grand Coulee Dam. |
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Date Original |
1930/1945 |
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Author |
Koester, Clifford R.; photographer unknown |
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Library of Congress Subject Headings |
United States--Washington (State)--Grant County--Grand Coulee Dam site; United States--Washington (State)--Grant County--Grand Coulee Dam |
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TGM Subject |
Diversion weirs |
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Type |
Image |
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Genre |
Photographs |
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Geographic Area |
United States--Washington (State)--Grant County--Grand Coulee Dam site |
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Identifier |
cg709b1v1p61.jpg |
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Source |
Is found in A History of the Columbia Basin Project (vol. 1, pg. 61), Cage 709, Clifford R. Koester Papers http://libraries.wsu.edu/masc/finders/cg709.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) http://libraries.wsu.edu/masc |
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Rights |
http://rightsstatements.org/vocab/NKC/1.0/ |
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Rights Notes |
No known copyright. Item is in public domain as it was created by United States government. |
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Digital Format |
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 |
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Notes |
Part of Western Waters Digital Library, http://westernwaters.org/ |
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Language |
English |
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Rating |
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