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PA-120 Bridge

PA-120 Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 22, 2021

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Facility Carried / Feature Intersected
PA-120 (Allegany Avenue) Over Sinnemahoning Portage Creek
Location
Emporium: Cameron County, Pennsylvania: United States
Construction Date and Builder / Engineer
1933 By Builder/Contractor: Welch Construction Company and Engineer/Design: Pennsylvania State Highway Department
Rehabilitation Date
2011
Main Span Length
112.0 Feet (34.1 Meters)
Structure Length
116.0 Feet (35.4 Meters)
Roadway Width
32.2 Feet (9.81 Meters)
Spans
1 Main Span(s)
Inventory Number
8844

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge is an increasingly rare example of a state standard pony truss that has been rehabilitated rather than demolished. The bridge has extremely rare Weirton Steel brands on it in addition to Carnegie Steel.

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 1933, single span, 116'-long, rivet-connected Parker pony truss bridge is supported on concrete abutments with wingwalls. The upper chords are built up box sections, the lower chords are channels with battens, and the verticals and diagonals are rolled sections. The bridge is an example of a state highway department standard design rivet-connected truss bridge that was used with great frequency beginning in the mid 1920s. It has no innovative or distinctive details. Approximately 75 riveted Parker truss highway bridges built between 1925 and 1957 have been identified. Neither the bridge nor its setting is historically or technologically significant.

Discussion of Surrounding Area

The bridge carries a 2 lane road with sidewalks over a stream in an area dominated by late 20th century commercial strip development. There is also a modern industrial plant at the southeast quadrant. The area does not have historic district potential.

Bridge Considered Historic By Survey: No

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Maps and Links: PA-120 Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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