Favorite this☆ bh016374 Tunnels from reservoir no. 2 to pumping station no. 2, Waterworks Park, Detroit water supply system
Favorite this☆ bh016296 Worker posing in tunnel from Weir chamber during construction, Waterworks Park, Detroit water supply system
Favorite this☆ bh016295 Control chamber and tunnels during construction, Waterworks Park, Detroit water supply system
