Favorite this☆ bh016403 Workers placing concrete in last lift of north stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016433 Workers in south stop log shaft, Waterworks Park, Detroit water supply system
Favorite this☆ bh016434 Steel sheet piling in screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016436 South stop log shaft excavation, Waterworks Park, Detroit water supply system
Favorite this☆ bh016440 Forms and reinforcing steel for screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016441 Forms and reinforcing steel for screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016442 Forms and reinforcing steel for screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016444 Construction workers at south heading of tunnel, Waterworks Park, Detroit water supply system
Favorite this☆ bh016445 Construction workers at south heading of tunnel, Waterworks Park, Detroit water supply system
Favorite this☆ bh016446 Worker in tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016447 Foundation piles in screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016448 Foundation piles in screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016449 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016486 University of Michigan civil engineering students in tunnel, Waterworks Park, Detroit water supply system
Favorite this☆ bh016487 Men accompanying mayor of Detroit on inspection trip of river and land tunnels, Waterworks Park, Detroit water supply system
Favorite this☆ bh016488 Workers posing in tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016489 Goldbeck cells taking pressure readings, Waterworks Park, Detroit water supply system
