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Twelve-ton tetrahedrons close cofferdam for McNary powerhouse and spillway
Illustrated description of closure of cofferdam across Columbia River; instead of sheet piling in depth of 60 ft of water, 3272 concrete tetrahedrons weighing 12 tons each were dropped by cableway; illustrated description.
Twelve-ton tetrahedrons close cofferdam for McNary powerhouse and spillway
Illustrated description of closure of cofferdam across Columbia River; instead of sheet piling in depth of 60 ft of water, 3272 concrete tetrahedrons weighing 12 tons each were dropped by cableway; illustrated description.
Twelve-ton tetrahedrons close cofferdam for McNary powerhouse and spillway
Civ Eng (NY)
Thatcher, J.R. (author)
Civil Engineering ; 21
1951
5 pages
Article (Journal)
English
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