Add to ORKGA power shovel removes earth from a hillside near Grand Coulee Dam. It is one of many vehicles excavating the site.https://dc.ewu.edu/blonk/1677/thumbnail.jp
Early construction work at the dam site. Removal of overburden was under way. View looking upstrea...
Workers with jackhammers excavate behind a cofferdam at Grand Coulee Dam. A concrete wall extends al...
Steel Trestle work under construction. Overburden has been removed exposing bedrock. cofferdam visi...
Several earth moving machines including bulldozers, dump trucks, and a power shovel move earth from ...
The bucket of a power shovel drops earth into a dump truck near Grand Coulee Dam.https://dc.ewu.edu/...
Excavation work for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1122/thumbnail.jp
Crude roads run up a rocky hillside on the Grand Coulee Dam construction site.https://dc.ewu.edu/blo...
A bulldozer and dump trucks move earth behind a cofferdam at Grand Coulee Dam. A concrete wall lines...
Workers shovel dirt behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1453/thumbnail.j...
An aerial view of the site of North Coulee Dam which extends from the stripped area at the lower lef...
Working with air drills to remove fractured rock from the dam site before pouring the foundation for...
Earth Moving in preparation for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1160/t...
Snow covers an excavation site behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1508/...
Newspaper photo of bedrock at Grand Coulee on site where the dam now sitshttps://digitalcommons.cwu....
A man clears snow with a motorized snow plow near the Grand Coulee Dam construction site.https://dc....
Early construction work at the dam site. Removal of overburden was under way. View looking upstrea...
Workers with jackhammers excavate behind a cofferdam at Grand Coulee Dam. A concrete wall extends al...
Steel Trestle work under construction. Overburden has been removed exposing bedrock. cofferdam visi...
Several earth moving machines including bulldozers, dump trucks, and a power shovel move earth from ...
The bucket of a power shovel drops earth into a dump truck near Grand Coulee Dam.https://dc.ewu.edu/...
Excavation work for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1122/thumbnail.jp
Crude roads run up a rocky hillside on the Grand Coulee Dam construction site.https://dc.ewu.edu/blo...
A bulldozer and dump trucks move earth behind a cofferdam at Grand Coulee Dam. A concrete wall lines...
Workers shovel dirt behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1453/thumbnail.j...
An aerial view of the site of North Coulee Dam which extends from the stripped area at the lower lef...
Working with air drills to remove fractured rock from the dam site before pouring the foundation for...
Earth Moving in preparation for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1160/t...
Snow covers an excavation site behind a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1508/...
Newspaper photo of bedrock at Grand Coulee on site where the dam now sitshttps://digitalcommons.cwu....
A man clears snow with a motorized snow plow near the Grand Coulee Dam construction site.https://dc....
Early construction work at the dam site. Removal of overburden was under way. View looking upstrea...
Workers with jackhammers excavate behind a cofferdam at Grand Coulee Dam. A concrete wall extends al...
Steel Trestle work under construction. Overburden has been removed exposing bedrock. cofferdam visi...