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Excavation equipment removing overburden in center or riverbed section. East end of low trestle shown under Eastmix in upper right corner. Athey and Woolridge buggies below.
1937-03-16
2024-11-25 |
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Excavating rock in bed of river. In the foreground is one of several large lava erratics in about the middle of spillway section.
1937-01-14
2024-11-25 |
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Jackhammer men drilling weathered bedrock. This view shows rock that underlay the channel of the river, now flowing outside the cofferdam cells and block 40.
2024-04-25
2024-11-25 |
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Jackhammer men preparing for the blasting off of weathered and unsound surface rock.
2024-04-25
2024-11-25 |
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Waiting for foundations for bents to join high trestle ends, across deep crevice. Whirley and cantilever cranes on section of trestle to the right. Cross-river cofferdam in upper part of photograph.
1937-06-24
2024-11-25 |
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Department of the Interior. Bureau of Reclamation. Columbia Basin Project--Washington. Columbia River Dam Calyx Drill Holes Location up to 1938
1939-01-24
2024-11-25 |
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General view, looking west from the east abutment. In the center foreground is the frozen arch dam. Excavation operations are in progress in the center section.
1937-02-18
2024-11-25 |
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The "ice dam" showing the slide of February 28, 1937, on the east forebay slope. The rock outcrop against which the slide lodged is about 100 feet back of the frozen earth dam.
1937-03-02
2024-11-25 |
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Department of the Interior. Bureau of Reclamation. Columbia Basin Project--Washington. Columbia River Dam Topography of Existing Ground Surface at Brett Gravel Pit at end of MWAK Co. contract
1938-04-08
2024-11-25 |
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Feeder to central conveyor on the 1840 level in Brett gravel pit, September 10, 1937.
1937-09-10
2024-11-25 |
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Aggregate plant at Brett pit. At right edge is conveyor from secondary rotary screens to balancing pile; and at center right, wash-water clarifier. The pair of covered conveyors run to top floor of screening and washing plant; and in upper part is...
1937-09-10
2024-11-25 |
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Bucket being lowered by cantilever crane from train on high trestle.
2024-04-25
2024-11-25 |
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Cantilever and whirley cranes on elevation 1024 and 950 trestles.
2024-11-25
2024-11-25 |
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East side of block 40. Fillet shown to the left. Bucket unloading in bedrock pour.
1937-06-24
2024-11-25 |
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Washing with air and water in preparing surface for next pour. Cooling pipes on floor are one inch in diameter, spaced 5 feet 9 inches.
2024-11-25
2024-11-25 |
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President Roosevelt, a visitor on October 2, 1937, being shown over the project by construction engineer, F. A. Banks.
1937-10-02
2024-11-25 |
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The President speaking over microphone to crowd at Mason City, on visit October 2, 1937.
1937-10-02
2024-11-25 |
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Postmaster General Farley receiving facts about the project from Construction Engineer Banks in the West Vista House.
1937-10-14
2024-11-25 |
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Mr. R. F. Walter, Chief Engineer, Mr. F. A. Banks, Construction Engineer, and Mr. John C. Page, Commissioner of U.S. Bureau of Reclamation, at opening of bids for completion of the Grand Coulee Dam, one power house and the irrigation wing-dam.
1937-12-10
2024-11-25 |
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Topographic sketch map, looking southerly from the dam, of the area embracing the lands to be irrigated.
2024-11-25
2024-11-25 |
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U. S. Bureau of Reclamation Administration Building and grounds.
2024-11-25
2024-11-25 |
