St. Clair Tunnel, Sarnia Pump House, Northeast of east portal, Port Hu...
Public domain photograph - historical image of Michigan, United States, free to use, no copyright restrictions image - Picryl description
Birds eye view of the city of Port Huron, Sarnia & Gratiot, St. Clair ...
Perspective map not drawn to scale. LC Panoramic maps (2nd ed.) 370 Available also through the Library of Congress Web site as a raster image. Indexed for points of interest. Vault AACR2: 100; 651/1; 651/2; 651... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Sarnia Pump House, Northeast of east portal, Port Hu...
Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Sarnia Pump House, Northeast of east portal, Port Hu...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Sarnia Pump House, Northeast of east portal, Port Hu...
Public domain photograph - historical image of Michigan, United States, free to use, no copyright restrictions image - Picryl description
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Sarnia Pump House, Northeast of east portal, Port Hu...
Public domain photograph - historical image of Michigan, United States, free to use, no copyright restrictions image - Picryl description
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More
St. Clair Tunnel, Under St. Clair River between Port Huron, MI, & Sarn...
Significance: The St. Clair Tunnel was the first full-sized subaqueous tunnel built in North America. Joseph Hobson, the Chief Engineer, successfully combined three significant new technologies a tunnel shie... More