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Tunnel
34 photos
Swiss guarding tunnel
Approach to the Detroit River Tunnel, Detroit, Mich.
Ste. Claire i.e. St. Clair tunnel, Port Huron, Mich.
East portal, Hoosac Tunnel, North Adams i.e. Florida, Mass.
West portal, Hoosac Tunnel, North Adams, Mass.
Sinking last tubular section, Detroit River tunnel
Sinking last tubular section, Detroit River tunnel, W.S. Kinnear, chief engineer, Butler Bros. Construction Co., contractors
Entrance to St. Clair tunnel, Port Huron, Mich.
Detroit River tunnel, Detroit, Mich.
St. Clair tunnel, Port Huron, Mich.
Jenson Tunnel
Union Canal Tunnel
Chattanooga, Harrison, Georgetown & Charleston Railroad Tunnel
Cumberland Mountain Tunnel
Stumphouse Tunnel Complex
Westmoreland Tunnel
St. Clair River Tunnel
Ptarmigan Tunnel
East portal, Hoosac Tunnel, Florida, Mass.
West portal, Hoosac Tunnel, North Adams, Mass.
Detroit River tunnel, Detroit, Mich.
Tunnel 4 from 5, Temasopa sic Canon
Tunnel 5, Temasopa sic Canon, Mexico