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226 - 250 of 431 Items << < 5 6 7 8 9 10 11 12 13 14 > >>
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Timber trusses between steel piling diaphragms in excavation for block 40.
1935-11-30
2024-05-01 |
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Triangulation Station - Keller Mountain.
1934-06-01
2024-05-01 |
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Department of the Interior: Bureau of Reclamation; Columbia Basin Project-Washington Grand Coulee Dam Columbia River Highway Bridge General Plan and Elevation
1934-07-10
2024-05-01 |
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This is a Fuller-Kinyon pump unloading bulk cement directly from the car into the silo. By means of mercoid switches in the bell-shaped "wand" the operator holds in his hand, he is able to control the operation of all five of the motors on the...
2024-05-01
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Control panels for L-2 generator in the governor gallery, at El. 951. The board at the left controls the generator and auxiliary equipment. The cabinet at the right contains the turbine governor and its controls.
1942-01-20
2024-05-01 |
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View of downstream face of dam, showing left powerhouse in foreground, and drum gates in upright or "close" position in the spillway section. River surface elevations as follows: upstream, 1139.70, downstream, 941.6.
1941-03-31
2024-05-01 |
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A Government survey party cross sections the pumping plant discharge tunnels. The measurements will be used to compute the volume of the excavated rock.
1940-03-19
2024-05-01 |
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Concrete placing in progress in the lining of the left abutment gantry crane siding recess.
1939-09-06
2024-05-01 |
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River fill at leaky cofferdam. Upstream cross-river cofferdam in the distance.
1937-04-01
2024-05-01 |
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East pit flooded behind Wakefield cofferdam (el. 965); Left foreground shows beginning of west end concrete placing trestle and east concrete mixer - at the right are aggregate stock piles and contractor's machine shops. Suspension bridge for...
1936-05-01
2024-05-01 |
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Contractor's sounding barge securing river-bottom contours for fitting timber crib cross-river cofferdams to river bed. Across river is section "F" of west cofferdam partly removed. Upper left is aggregate suspension bridge.
1936-08-08
2024-05-01 |
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The bus structure base which will support the heavy power conductors leading to the pumping plant. The steel dowels are for the concrete walls of the box-like gallery structure, which will enclose the conductors and which will be built at some...
1905-04-22
2024-05-01 |
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First water over Grand Coulee, in June 1940, made this picture of a man-made waterfall, 183 ft. higher than Niagara. Already generating power, the dam will pump water onto 1,200,000 arid acres in the Grand Coulee, 280 ft. above dam at the right.
1940-06-01
2024-05-01 |
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Upstream face of the dam, looking westerly, with reservoir water surface at elevation 1139.05. The trashrack structures in the right foreground will prevent debris from entering the penstocks leading to the right powerhouse.
1914-02-05
2024-05-01 |
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Standard rain gauge and thermometer instruments in weather station located near concrete testing laboratory.
1905-04-19
2024-05-01 |
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Forty-eight inch conveyor belt transporting finished aggregate from screening and washing plant to mixer stockpiles - capacity 1250 tons per hour.
1935-09-15
2024-05-01 |
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Built here on the delta of Fiddle Creek is the model town of Coulee Dam, WA. or "Engineer's Town" and "Government Camp" as it was sometimes called. Its 134 dwellings are neatly patterned in a novel arrangement on an unusual site, nestling beneath...
2024-05-01
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This mimic board in the main control room shows the interconnections of generators, transformers, power circuits, associated switch yard equipment, and the outgoing transmission lines, as arranged on December 14, 1942, except that Spokane lines...
1942-12-14
2024-05-01 |
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Spectacular waterfall at Coulee Dam surpasses Niagara in height. During the 1940 flood stage, the Columbia River was diverted through the outlet works and over a portion of the unfinished spillway section.
1940-06-07
2024-05-01 |
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Department of the Interior: Bureau of Reclamation; Columbia Basin Project-Washington Grand Coulee Dam - Organization Chart May 1934
1934-05-01
2024-05-01 |
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Third Volume, Fifty First issue, of the Mason-Walsh-Atkinson-Kier CO. builders of Coulee Dam Safety Newsletter. Created by the Safety Department and issued to the residents of Mason City and contract workers at Grand Coulee Dam.
2024-05-01
2024-05-01 |
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Spillway section of the Grand Coulee Dam, with the erection of falsework for the spillway bridge arch barrels in progress.
1941-07-15
2024-05-01 |
