Favorite this☆ bh016957 Worker pulling front row piles into line, Waterworks Park, Detroit water supply system
Favorite this☆ bh016956 Diver boring holes for piles and timbers underwater, Waterworks Park, Detroit water supply system
Favorite this☆ bh016955 Pile drivers and piling at dock, Waterworks Park, Detroit water supply system
Favorite this☆ bh016942 Disc for gate valve in sluice gate, suction chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016941 Pipe valve in sluice gate for suction chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016940 Gate valve and sluice gate for suction chamber, Waterworks Park, Detroit water supply system
