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Washington State University Libraries
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Existing location of the Great Northern Railroad and State Highway No. 22, paralleling the Columbia River above Bossburg, Washington. The railway at this point will be inundated, but the highway will not since it is at elevation 1310 or higher.
1938-06-03
2024-11-24 |
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State Highway bridge across the Columbia River, below Kettle Falls. It will be replaced with a higher structure prior to filling the Reservoir.
1938-06-02
2024-11-24 |
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Diamond Drill exploration at Icicle Creek for the Leavenworth migratory fish control station. This is the proposed site for dam No. 2 of the diversion canal and holding pond system at the Leavenworth station.
1938-05-01
2024-11-24 |
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A typical Mason City residence. At the close of the Mason-Walsh-Atkinson-Kier Company contract, 59 of these houses were reserved for Government employees.
1938-12-09
2024-11-24 |
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C.C.C. forces at work on the swimming pool for the recreational area of the Government Camp.
1938-02-16
2024-11-24 |
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The swimming pool in the Government camp's recreational area.
1938-08-04
2024-11-24 |
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C.C.C. forces working on tennis courts in recreational area of the Government camp. The required skilled labor was furnished from the force account.
1938-02-16
2024-11-24 |
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The lecturer at the Government's free grandstand and vista house displays a topographic model of the damsite showing conditions prior to any construction. The object in the river is the old Seaton Ferry."(Note: This and following five pictures...
2024-11-24
2024-11-24 |
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The lecturer at the Government's West Vista House displays a topographic model of the foundation upon which the dam rests.
2024-11-24
2024-11-24 |
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The lecturer at the Government's West Vista House displays a model of the west cofferdam and west portion of the dam in the river diversion stage of construction.
2024-11-24
2024-11-24 |
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The lecturer at the Government's free grandstand displays a model of the cross river cofferdams and the strategic block 40.
2024-11-24
2024-11-24 |
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A model of the completed Grand Coulee Dam is placed on the bedrock by the lecturer at the Government's free grandstand and vista house.
2024-11-24
2024-11-24 |
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The lecturer at the Government's West Vista house displays a cross section of the spillway of the dam. He is pointing out the location of the 102" diameter outlet conduits, the downstream ends of which are also visible in the model of the dam.
2024-11-24
2024-11-24 |
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Consolidated Builders' working model of the dam. The small square blocks represent a block pour or 5-foot lift of concrete and are added to the model to show the progress of construction as well as to correlate all construction activities.
1938-11-03
2024-11-24 |
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A portable model of the Grand Coulee Dam, built to a scale of 1 inch equals 80 feet.
2024-06-24
2024-11-24 |
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The hydraulic model of Grand Coulee Dam, built to a scale of 1 inch equals 5 feet. Operating automatically, the model displays, in a 5-1/2-minute prior, the principal hydraulic features of the dam as they will occur during a typical year.
2024-11-24
2024-11-24 |
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Grand Coulee Dam at the close of the M.W.A.K. Company Contract. The construction trestle at elevation 1024 tops concrete which had been poured to a maximum elevation of 1010 in the abutment sections and to elevation 945 in the spillway section...
1938-03-08
2024-11-24 |
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The 1939 flood stage of the Columbia River is diverted over low blocks in the spillway section of Grand Coulee Dam. Concrete placing, which is in progress on either side of the spillway, will be resumed therein when the flood waters subside. To...
1939-05-23
2024-11-24 |
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Sand used in the sandblast cleanup operations is dried in revolving drums heated by hot blast from oil furnaces. The dried sand is screened, and the medium-sized particles only are used for the sandblast operations.
1939-10-19
2024-11-24 |
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A battery of cranes placing concrete in the spillway section of the dam.
1939-11-14
2024-11-24 |
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The contractor transfers a power barge to the upstream side of the dam.
1939-04-06
2024-11-24 |
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A concrete train and operator on the deck of the elevation 1180 construction trestle.
1939-10-06
2024-11-24 |
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Excavation in progress in the deep ravine at the pumping plant foundation. The bench in front of the discharge tunnels is at elevation 1193; the shovel and trucks are at elevation 1090.
1939-04-04
2024-11-24 |
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Following excavation and grouting of the pumping plant foundation, the first concrete pour was made on October 6, 1939
1939-10-06
2024-11-24 |
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Exhaust blowers were used to ventilate the pumping plant discharge tunnels while excavation was in progress.
1939-01-09
2024-11-24 |
