Favorite this☆ bh016441 Forms and reinforcing steel for screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016440 Forms and reinforcing steel for screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016436 South stop log shaft excavation, Waterworks Park, Detroit water supply system
Favorite this☆ bh016434 Steel sheet piling in screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016433 Workers in south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016425 Screen chamber caisson showing third lift, Waterworks Park, Detroit water supply system
Favorite this☆ bh016424 Sinking caisson of construction shaft for tunnel, Waterworks Park, Detroit water supply system
