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Test of form stripping. Re: stains on concrete
1940-03-02
Man tests concrete specimens
1938-03-08
Sample core of Grant; showing seam
2017-12-18
Due to lack of proper transportation equipment, difficulty was encountered in taking the R-1 rotor shaft across the spillway roadway of the dam. In order to distribute the load safely, it was necessary for this truck boom to hook onto the trailer...
1948-07-21
Drill core sample against white background
2017-12-18
View of concrete drying(?)
1938-01-04
North Coulee Dam, Piezometer Terminal Well, A view of the piezometer test apparatus at the corner of the upstream and right walls of the well. The pore pressure in the dam embankment and foundation are transmitted through the water-filled tubes...
1950-10-24
A close up view of bolts in a concrete wall
1938-02-01
Close up view of a man gauging offsets between concrete units
1938-02-01
Main unit stop-log guide showing offsets between parts 1 and 2 of drawing 222-D-2204 at elevation 1025.8
1939-03-31
Placing[] for R-1 scroll case on the trailer in the Electric City yards preparatory to transporting it to the East powerhouse. July 16, 1948
1948-07-16
96 pound block of concrete found in unit L-4 turbine runner, 3-20-44. The 7/8"" diameter hole in the foreground appears to have been an anchor bolt hole. Rectangular dimensions are 17"" x 11"" while wedge side dimensions are 17"" x 10"" x3""
1944-03-20
View of the propeller of the Miss Coulee desplayed on a pedistal
1941-08-05
Close up view of strange rock formations
1938-11-02
Close up view of a strange rock formation
1944-06-03
A view of the east end of the left powerhouse, with turbine pit No. 6 in the immediate foreground
1942-11-28
Placing scroll case section L1 W. powerhouse
1941-08-21
The 190-ton scroll case for 103,000 horsepower Allis-Chalmers hydro turbine unit being installed in the west powerhouse at Grand Coulee Dam. This unit consists of several radial and on straight section of welded plate steel riveted with double...
1942-07-11
View of pit 6 showing scrollcase in place. Photo taken from crane
1943-02-15
Placing the last section of the scroll case for L-7 turbine.
1947-03-10
Bureau workmen Stretching bolts on scrollcase in east powerhouse at Grand Coulee Dam, Left to right; Walt Scott and Robert Bush
1950-11-09
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