Favorite this☆ bh016472 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016471 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016470 Timbering of south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016469 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016468 Timbering of south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016467 Timbering of south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016466 North heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016465 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016464 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016462 Workers pouring concrete for screen chamber foundation slab, Waterworks Park, Detroit water supply system
Favorite this☆ bh016459 Workers constructing screen chamber, Waterworks Park, Detroit water supply system
Favorite this☆ bh016458 South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016456 Screen chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016455 Screen chamber during construction, Waterworks Park, Detroit water supply system
