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This bridge is a good example of a traditionally composed highway plate girder. While railroad plate girders remain common nationwide, some states did not build many highway plate girders. However, Pennsylvania was one state which did build a large number of highway plate girders. This example retains good historic integrity. Structurally, it suffers from areas of 100% section loss on the web of the girder. Dispite the alarming appearance of this section loss, structurally the girder remains a strong and capable structure.
Information and Findings From Pennsylvania's Historic Bridge InventoryDiscussion of Bridge The 1931, skewed, single span, built up thru girder bridge is supported on concrete abutments. The bridge has a steel plate asphalt filled corrugated pan deck. The cantilevered sidewalk has a 2 rail high metal pipe rail railing. The bridge is an example of a common type with no innovative or distinguishing detail. Girder bridges were first developed by the railroad industry in the 1850s, and they were used on vehicular roadways in Allegheny County beginning in the late 19th century. Neither the bridge nor its setting and context are historically or technologically noteworthy. Discussion of Surrounding Area The bridge carries 1 lane of a street and 1 sidewalk over a stream in an area dominated by commercial and industrial buildings, with scattered mid- and late-20th century residences. The area does not appear to have historic district potential. Bridge Considered Historic By Survey: No |
This historic bridge has been demolished. This map is shown for reference purposes only.
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