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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US-6, US-202, and Appalachian Trail Over Hudson River and Railroad (CSX) in Rural: Rockland County, New York and Westchester County, New York, United States
Metal Deck Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Rivet-Connected ,
Length: 2,257 ft.
Main Span: 1,632 ft.
Roadway: 38 ft.
Main Spans: 1
Built 1924
By: McClintic-Marshall Company of Pittsburgh, Pennsylvania and Terry and Tench Construction Company of New York, New York
and Howard C. Baird
Autoroute 73 (Autoroute Robert-Cliche) Over St. Lawrence River (Fleuve Saint-Laurent) in Québec City and Lévis: Capitale-Nationale, Québec and Chaudiére-Appalaches, Québec, Canada
Metal Deck Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Concrete Stringer (Multi-Beam), Fixed
Length: 4,461 ft.
Main Span: 2,190 ft.
Main Spans: 3
Built 1970
By: Unknown
and Parsons Brinckerhoff of New York, New York and Demers, Vaudry, Gronquist
I-278 (Staten Island Expressway and Brooklyn - Queens Expressway) Over The Narrows in New York: Brooklyn, New York and Staten Island, New York, United States
Metal Deck Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Deck Girder, Fixed
Length: 7,934 ft.
Main Span: 4,260 ft.
Roadway: 73.8 ft.
Main Spans: 3
Built 1961
By: American Bridge Company of New York, New York
and Othmar Ammann