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GrandCouleeDam. NWC019.031
A "House of Magic" - One of two concrete mixing plants, capacity 8,000 cubic yards per day each.
GrandCouleeDam. NWC019.030
The checkerboard. The pouring of concrete into interlocking blocks permits grouting of contraction joints to form monolithic mass.
GrandCouleeDam. NWC019.028
Upstream Face Grand Coulee Dam. 1,550,000 cubic yards of concrete in place.
GrandCouleeDam. NWC019.027
Jackhammer Men - with hard hats and safety belts they trim steep abutment slopes.
GrandCouleeDam. NWC019.021
Concrete placing - January 1936. Top of dam 280 feet above high trestle deck.
GrandCouleeDam. NWC019.020
Governor Clarence D. Martin formally placing first concrete in dam, December 6, 1935.
GrandCouleeDam. NWC019.018
Belt conveyor - Transporting excavated material to Rattlesnake Canyon, 1 1/2 miles distant.
GrandCouleeDam. NWC019.016
Excavation - Five-yard shovel loading ten-yard buggies - excavating overburden from dam foundation.
GrandCouleeDam. NWC019.014
West cofferdam, March 31, 1935. Length, 3000 feet, height 115 feet, over 17,000 tons steel piling, constructed in ninety days.
GrandCouleeDam. NWC019.013
Government camp and highway bridge, 1936. Upstream is west cofferdam, concrete placing trestle, and west conveyor.
GrandCouleeDam. NWC019.012
Builders' Quarters - Government camp in the foreground; contractor's camp across the river - 1936.
GrandCouleeDam. NWC019.008
East end, Grand Coulee Dam - Concrete placing trestles and bedrock foundation blocks - January, 1937.
GrandCouleeDam. NWC019.001
One photo album illustrating the construction of the Grand Coulee Dam from 1933 to 1937. It includes photographs of the site before construction, the Columbia River diversion, blasting, "jackhammer men," driving steel piling, and general construction…
Spokane -- Washington Water Power Company (#23)
"Looking down stream to power house and high railroad bridge."
Spokane -- Washington Water Power Company (#05)
"Cabinet Gorge Dam, constructed on a spectacular canyon on the Clark Fork River in Idaho, is the second largest of WWP's nine hydro electric facilities. Working 24 hours a day, workers drove the two 1,000-foot diversion tunnels and erected the coffer…
Spokane -- Washington Water Power Company (#04)
"WWP's Long Lake Dam is still an impressive structure more than 75 years after its construction. The project which would have spillways 170 feet high- the highest in the world at the time- and the largest turbines then in opperation, was a mammoth…
Spokane -- Washington Water Power Company (#02)
"WWP's Monroe Street hydroelectric plant under construction in 1889. This facility, which has served five generations of Inland Northwest customers, is currently being upgraded- a renovation that includes replacement of the five old turbine-…
Spokane Valley -- Agriculture (#01)
"Irrigation flume and crops alongside in upper section of valley."
Northwest -- Dams -- Long Lake (#04)
"Long Lake power station, Spokane river, the W.W.P. Company 94,00 hp."
