
Golden Gate, 75th Aniversary | San Francisco

Glen Canyon dam | Arizona

Glen Canyon dam No.2 | Arizona

New Croton Dam | New York

Old Croton Aqueduct, Weir | New York

Bay Bridge Construction | San Francisco

Hoover Dam | Nevada / Arizona

Goat Canyon Trestle | California

Bay Bridge | San Francisco

Brooklyn Queens Expressway | Brooklyn

Cooling Tower | Nuclear Power Plant

40' Triple expansion steam engine (water pump)