95 results containing ""
[Stripping canyon walls]
[Hazardous work--rigger on cabling headtower during erection]
[Construction of Boulder Dam, Boulder City, Nevada--Excavating for foundation]
[Construction of Boulder Dam, Boulder City, Nevada: Rigger on cableway ...
Interior of construction cableway headtower
[Cableway anchorage]
[Construction of Boulder Dam, Boulder City, Nevada--Placing concrete lining in ...
Grouting concrete lining in 50' diameter diversion tunnel
Gravel screening and washing plant
Stock piles at gravel screening plant
Cement blending and concrete mixing plants
Control deck of cement mixing plant
[Construction of Boulder Dam, Boulder City, Nevada--General view of appurtenant ...
The downstream face of Boulder Dam as seen from Look-out ...
[Upstream face from below]
Welding of the 30' diameter penstocks for the Boulder power ...
[Construction of Boulder Dam, Boulder City, Nevada--Pouring concrete in dam ...
[Construction of Boulder Dam, Boulder City, Nevada--A transit mixer placing ...
[Construction of Boulder Dam, Boulder City, Nevada--A typical Boulder Dam ...
The Nevada intake towers at Boulder Dam