Sudbury Department, Sudbury Dam Hydroelectric Power Plant, plant for c...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Sudbury Department, Sudbury Dam Hydroelectric Power Plant, plant for c...
Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description
Oil. Vital operations in the refining of lubricants for the war machin...
Actual size of negative is C (approximately 4 x 5 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944... More
Oil. Vital operations in the refining of lubricants for the war machin...
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Presidio Water Treatment Plant, Surge Tanks, East of Lobos Creek at Ba...
Survey number: HAER CA-155-A Building/structure dates: 1975 Initial Construction Building/structure dates: 1983 Subsequent Work
Garrison Dam, Penstocks and Surge Tanks, 597 Garrison Dam Road, Riverd...
Significance: The penstocks and surge tanks were built to conduct water from the intake house (HAER ND-15-D) at Lake Sakakawea to the powerhouse (HAER ND-15-A). The surge tanks primarily provide pressure relief... More
Childs-Irving Hydroelectric Project, Childs System, Stand Pipe (Surge ...
Survey number: HAER AZ-65-CC Building/structure dates: 1908 Initial Construction