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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.
2024-11-17
2024-04-17
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.
2024-06-17
2024-04-17
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.
2024-05-17
2024-04-17
High scalers work on the cliff face above the unfinished portals of diversion tunnels no. 1 and no. 2. Construction equipment, trucks and workers are seen on the road in front of the tunnels. Rigging and ropes hang from the cliff face.
1932-03-07
This photo shows trucks and equipment used for hauling and pouring concrete to form the invert lining in a diversion tunnel at Hoover Dam. Also shows some construction workers.
1932-04-11
Construction workers are operating machinery (agitators) which dump concrete into buckets. Location is the interior of a diversion tunnel at the Hoover Dam construction site.
1932-03-23
Construction workers using a drilling jumbo to excavate one of the diversion tunnels.
1932-03-08
Construction workers are pouring concrete to line the diversion tunnels. Lights illuminate the project. Huge buckets hang from a crane.
1932-03-23
A temporary cableway filled with construction workers is poised above the Colorado River in Black Canyon near Lookout Point. The Arizona spillway operations are shown in the background.
1932-04-01
A construction worker is driving a caterpillar tractor in the rocks.
1932-03-28
Construction workers using construction equipment to drill railroad tunnels.
2024-04-17
View of the cement plant at the Hoover Dam site. Cables, buildings, and other construction equipment are visible.
1933-04-01
Shows construction workers being lowered by cable into the canyon to work on Hoover Dam.

Shows a huge penstock pipe at the Babcock & Wilcox Plant near the site of Hoover Dam construction. Several workers are pictured, and a steam train engine is parked on the railroad tracks inside the huge pipe.
1934-03-14
View looking down at the Colorado River in Black Canyon, the future site of Hoover Dam. Roads and buildings can be seen on the banks above the river and some construction equipment is visible.

Shows a drilling jumbo and other construction vehicles inside a diversion tunnel during the construction of Hoover Dam.
1932-02-05
Concrete pouring forms are being put into place for the construction of the Nevada power house. Construction materials, construction equipment, temporary buildings, and ropes for high scaling are visible.
1934-12-19
View of Hoover Dam under construction. A portal to a diversion tunnel is visible at lower left. The power houses can be seen as well as several buildings in the lower right of the photo on the cofferdam.
1935-07-25
Over-view of the Hoover Dam construction. This telephoto view, taken from atop one of the mountains overlooking the construction site, shows the spillways, the intake towers, and the downstream face of the dam. The Colorado River is visible as...
1934-08-17
Water pours from one of the outlets in the valve house on the Arizona side. Workers walk along a walkway by the Nevada power house or stand and look at the water. There is a mountain in the background.

View of face of dam showing water coming out of the outlet works on the Arizona side. A bridge, a cableway above the dam, the mouths of several diversion tunnels, the Nevada power house, and construction equipment are visible. The Colorado River...

View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings,...
1935-03-26
Construction workers are seen climbing on the outside of the no. 1 trash rack at diversion tunnel no. 1. Other workers view the scene from a railroad trestle that runs over the diversion tunnel portal, and from the upper cofferdam (seen in the...
1935-02-01
View of Hoover Dam, taken from the Arizona side, showing the intake towers and reservoir (Lake Mead) above the dam. A power shovel and also some buildings are visible. In the background there is construction equipment in the mountains.
1935-08-26
View looking upstream toward Hoover Dam. Alos shows the entrance to a tunnel and the powerhouses under construction. Trucks, cables, a cableway with trams, and other construction equipment can be seen.
1935-09-26
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