Favorite this☆ bh016597 Workers bailing water from casings, pouring concrete and driving pile casings, Waterworks Park, Detroit water supply system
Favorite this☆ bh016594 Workers on construction site before excavation, Waterworks Park, Detroit water supply system
Favorite this☆ bh016592 Weir chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016585 Hydraulic cylinder for gate valve in wash water line, Waterworks Park, Detroit water supply system
Favorite this☆ bh016584 Steel discharge pipes at rear of coagulation basin, Waterworks Park, Detroit water supply system
