Favorite this☆ bh016409 Steel sheet piling around screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016410 Reinforcing steel around screen chamber caisson, Waterworks Park, Detroit water supply system
Favorite this☆ bh016412 Concrete caisson being sunk for tunnel construction shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016422 Timbering for north transition of south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016423 Workers posing among timbering for north transition of south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016424 Sinking caisson of construction shaft for tunnel, Waterworks Park, Detroit water supply system
Favorite this☆ bh016425 Screen chamber caisson showing third lift, Waterworks Park, Detroit water supply system
Favorite this☆ bh016450 Workers removing first wale of screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016451 Foundation piles in screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016452 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016453 Safety bulkhead in south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016455 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016456 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016458 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016413 Workers placing concrete in second lift of screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016414 Form for third lift of construction shaft caisson, Waterworks Park, Detroit water supply system
