Historic Bridges: Seaway International Bridge Road
Special Bridge Conditions Legend:R - Former location of relocated bridge. ! - At risk for demolition or destruction.
X - Confirmed demolished or
collapsed. S
- Dismantled and/or in storage. L -
Severe loss of historic integrity due to alteration.
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Seaway International Bridge Road Over St. Lawrence River (Fleuve Saint-Laurent) South Channel in Cornwall: St. Lawrence County, New York and Stormont Dundas and Glengarry United Counties, Ontario, Canada and United States
Metal Pony Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Deck Girder, Fixed
Length: 3,480 ft.
Main Span: 895 ft.
Roadway: 27 ft.
Main Spans: 3
Built 1958
By: American Bridge Company of New York, New York
Seaway International Bridge Road Over St. Lawrence River (Fleuve Saint-Laurent) North Channel and Canal in Cornwall: Stormont Dundas and Glengarry United Counties, Ontario, Canada
Metal Continuous (Arched) Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal Rivet-Connected Warren Deck Truss, Fixed
Length: 5,350 ft.
Main Span: 414 ft.
Main Spans: 3
Built 1962
By: Canadian Bridge Company of Walkerville, Ontario
and Hugh Pratley of Montréal, Québec
