A crowd of workers stand outside a building near Grand Coulee Dam.https://dc.ewu.edu/blonk/1374/thumbnail.jp
Five workers in ropes and harnesses stand or hang on a rock face at the Grand Coulee Dam constructio...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
Several workers are on newly poured cement for the foundation of Grand Coulee Dam. A four-yard bucke...
Several workers stand on or near a steel frame used for the construction of Grand Coulee Dam or an a...
Workers on a cliff next to the partially constructed Grand Coulee Dam. Some workers are harnessed to...
Two workers stand on steel framework at Grand Coulee Dam. One worker stands in front of the frame.ht...
Workers shovel dirt behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1453/thumbnail.j...
A crowd of people exits the building containing exhibits on Grand Coulee Dam and the bleachers overl...
Four men stand in a stream of water released by a cofferdam at Grand Coulee Dam. Two of the workers ...
These workers were waiting for paychecks at the dam site.https://digitalcommons.cwu.edu/rufus_woods/...
Two men stand in a large pipe, perhaps part of a penstock liner, mounted on top of the partially con...
A two-story building near Grand Coulee Dam under construction. Workers push wheelbarrows up a ramp t...
A man with a pair of cutters stands below a crane arm at the Grand Coulee Dam construction site. Ano...
Workers handle a beam on the hook of a crane while standing in water at the base of a cofferdam at G...
Several workers move about concrete forms at Grand Coulee Dam. A sign on the west slope reading Saf...
Five workers in ropes and harnesses stand or hang on a rock face at the Grand Coulee Dam constructio...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
Several workers are on newly poured cement for the foundation of Grand Coulee Dam. A four-yard bucke...
Several workers stand on or near a steel frame used for the construction of Grand Coulee Dam or an a...
Workers on a cliff next to the partially constructed Grand Coulee Dam. Some workers are harnessed to...
Two workers stand on steel framework at Grand Coulee Dam. One worker stands in front of the frame.ht...
Workers shovel dirt behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1453/thumbnail.j...
A crowd of people exits the building containing exhibits on Grand Coulee Dam and the bleachers overl...
Four men stand in a stream of water released by a cofferdam at Grand Coulee Dam. Two of the workers ...
These workers were waiting for paychecks at the dam site.https://digitalcommons.cwu.edu/rufus_woods/...
Two men stand in a large pipe, perhaps part of a penstock liner, mounted on top of the partially con...
A two-story building near Grand Coulee Dam under construction. Workers push wheelbarrows up a ramp t...
A man with a pair of cutters stands below a crane arm at the Grand Coulee Dam construction site. Ano...
Workers handle a beam on the hook of a crane while standing in water at the base of a cofferdam at G...
Several workers move about concrete forms at Grand Coulee Dam. A sign on the west slope reading Saf...
Five workers in ropes and harnesses stand or hang on a rock face at the Grand Coulee Dam constructio...
A worker wearing a hard hat holds a hose for pouring concrete just over the framework for a portion ...
Several workers are on newly poured cement for the foundation of Grand Coulee Dam. A four-yard bucke...