Air-operated diamond drill used at South Coulee Damhttps://digitalcommons.cwu.edu/rufus_woods/1213/thumbnail.jp
Spraying the surface of concrete with white curing compound at South Coulee Damhttps://digitalcommon...
Construction at Grand Coulee Dam, showing several aspects of work. Drillers with air drills working...
Construction site at Grand Coulee Dam.https://dc.ewu.edu/blonk/1211/thumbnail.jp
Equipment designed at Grand Coulee Dam to handle main thrust bearingshttps://digitalcommons.cwu.edu/...
Using air drills to prepare the bedrock for the foundation of Grand Coulee Dam.https://dc.ewu.edu/bl...
Contractor shows well-point equipment for dewatering dam foundation at North Coulee Damhttps://digit...
Drilling for preparation for foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/1063/thumbnail....
diamond drill for mining metalhttps://digitalcommons.georgefox.edu/museum_oregon/1418/thumbnail.jp
Working with air drills to remove fractured rock from the dam site before pouring the foundation for...
One of the original air drills used to build Grand Coulee Dam is retained as a historical object.htt...
South Coulee Dam main canal headworkshttps://digitalcommons.cwu.edu/rufus_woods/1345/thumbnail.jp
Trench dug for reservoir area of North Coulee Damhttps://digitalcommons.cwu.edu/rufus_woods/1355/thu...
Wolfden Resources drill core equipment on Pickett Mountainhttps://digitalmaine.com/mgs_geologic_fiel...
Black and white photograph of a diamond drill setup in the river in Provo canyon, during U.S. Bureau...
Excavation work for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1122/thumbnail.jp
Spraying the surface of concrete with white curing compound at South Coulee Damhttps://digitalcommon...
Construction at Grand Coulee Dam, showing several aspects of work. Drillers with air drills working...
Construction site at Grand Coulee Dam.https://dc.ewu.edu/blonk/1211/thumbnail.jp
Equipment designed at Grand Coulee Dam to handle main thrust bearingshttps://digitalcommons.cwu.edu/...
Using air drills to prepare the bedrock for the foundation of Grand Coulee Dam.https://dc.ewu.edu/bl...
Contractor shows well-point equipment for dewatering dam foundation at North Coulee Damhttps://digit...
Drilling for preparation for foundation of Grand Coulee Dam.https://dc.ewu.edu/blonk/1063/thumbnail....
diamond drill for mining metalhttps://digitalcommons.georgefox.edu/museum_oregon/1418/thumbnail.jp
Working with air drills to remove fractured rock from the dam site before pouring the foundation for...
One of the original air drills used to build Grand Coulee Dam is retained as a historical object.htt...
South Coulee Dam main canal headworkshttps://digitalcommons.cwu.edu/rufus_woods/1345/thumbnail.jp
Trench dug for reservoir area of North Coulee Damhttps://digitalcommons.cwu.edu/rufus_woods/1355/thu...
Wolfden Resources drill core equipment on Pickett Mountainhttps://digitalmaine.com/mgs_geologic_fiel...
Black and white photograph of a diamond drill setup in the river in Provo canyon, during U.S. Bureau...
Excavation work for the construction of Grand Coulee Dam.https://dc.ewu.edu/blonk/1122/thumbnail.jp
Spraying the surface of concrete with white curing compound at South Coulee Damhttps://digitalcommon...
Construction at Grand Coulee Dam, showing several aspects of work. Drillers with air drills working...
Construction site at Grand Coulee Dam.https://dc.ewu.edu/blonk/1211/thumbnail.jp