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Historic Bridges: PA-56 and PA-711

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.


Results in this list will be limited to the first 200 results. Consider performing a more narrow search from the main BridgeSeek tool if your search here is showing 200 results.

Total Bridges Found: 2

Seward Bridge
HSRNational HSR. Local HSR.
Click to visit page.
PA-56 and PA-711 Over Conemaugh River in Seward: Indiana County, Pennsylvania and Westmoreland County, Pennsylvania, United States
Metal 9 Panel Rivet-Connected Parker Through Truss, Fixed
Length: 377 ft. Main Span: 183 ft. Roadway: 30 ft. Main Spans: 2
Built 1933 By: Unknown and Pennsylvania State Highway Department
This bridge is a multi-span example of a standard plan truss in Pennsylvania.
X
Seward Viaduct
Seward Railroad Overpass Bridge
HSRNational HSR. Local HSR.
Click to visit page.
PA-56 and PA-711 Over Railroad (Norfolk Southern) in Seward: Westmoreland County, Pennsylvania, United States
Metal 8 Panel Rivet-Connected Polygonal Warren (No Verticals) Pony Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 417 ft. Main Span: 109 ft. Roadway: 24 ft. Main Spans: 1
Built 1930 By: American Bridge Company of New York, New York
A good example of a 1930s pony truss in Pennsylvania.

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