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151 - 175 of 1628 Items << < 2 3 4 5 6 7 8 9 10 11 > >>
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A view of construction workers towing a generator behind the boat that they are using to cross the Colorado River.
2024-04-25
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Here in April of 1937 jackhammer crews are removing the first layer of bedrock in the excavation pit east of block 40. Note the vertical keyways on the side of block 40, which was typical of all blocks. The blocks were interlocked with these...
1937-04-01
2024-04-25 |
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The indolent manner in which these highscalers are draped over their tools indicates experience rather than indifference. in the hands of a novice a jackhammer seems to be a wild and raving tool, filled with perverse notions and quirks,...
2024-04-25
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The indolent manner in which these highscalers are draped over their tools indicates experience rather than indifference. in the hands of a novice a jackhammer seems to be a wild and raving tool, filled with perverse notions and quirks,...
2024-04-25
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At Consolidated Builders' sand classifier plant, the Toledo scale, with chronoflow recording attachment, weighs the quantity of sand produced. Each of the three scales is attached to a conveyor belt which carries sand of one size range.
1938-08-26
2024-04-25 |
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Stacker unit of 60-inch excavation conveyor - capacity 60,000 cubic yards per day.
1935-03-18
2024-04-25 |
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Here is a scene which was typical of the whole construction areas; appearing to the uninitiated as a bewildering confusion of materials, men, and machines, while actually the work was progressing in a very systematical and orderly manner, with...
2024-04-25
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The elevation 1650 level of the Brett Gravel Pit is opened up for the mining of raw aggregate.
1938-05-24
2024-04-25 |
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Excavation and conveyor system behind east cofferdam, cross river conveyor trestle, upstream end of west cofferdam and main line of conveyor to spoil pile in Rattlesnake Canyon. Top of picture shows cement silos.
1935-11-04
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-10-27
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1949-06-01
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
2024-07-25
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-08-18
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-04-28
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1949-05-01
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
2024-04-25
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1946-12-13
2024-04-25 |
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Vibrating concrete in east training wall, using Jackson 2-man machines operating at 4,800 r.p.m. 145 volts.
1936-05-19
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-07-21
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-03-17
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1948-04-01
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
2024-09-25
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
2024-03-25
2024-04-25 |
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Columbia Basin Project Safety News is a monthly publication issued to employees of the Columbia Basin Project informing them of accidents, safety regulations, and day to day activities on the Grand Coulee Dam construction site.
1950-06-23
2024-04-25 |
