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
Favorite this☆ bh016414 Form for third lift of construction shaft 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☆ bh016410 Reinforcing steel around screen chamber caisson, Waterworks Park, Detroit water supply system
Favorite this☆ bh016407 Shoe and reinforcing steel for lower portion of concrete caisson, Waterworks Park, Detroit water supply system
Favorite this☆ bh016406 Cutting shoe for caisson of screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016400 Workers constructing south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016391 Caisson shoe and interior form, south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016390 Caisson shoe and interior forms, north stop log shaft, Waterworks Park, Detroit water supply system
