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Historic Bridges: I-81

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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Total Bridges Found: 1

Thousand Islands Bridge
South Channel (American) Bridge
HSRNational HSR. Local HSR.
Click to visit page.
I-81 Over St. Lawrence River (Fleuve Saint-Laurent) South Channel in Rural: Jefferson County, New York, United States
Metal Plate Girder Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Deck Girder, Fixed
Length: 4,500 ft. Main Span: 800 ft. Roadway: 24 ft. Main Spans: 3
Built 1937 By: American Bridge Company of New York, New York and Robinson and Steinman




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