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Shamrock Bridge

Shamrock Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: May 3, 2013 and July, 7, 2018

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Location
Rural: Greene County, Pennsylvania: United States
Construction Date and Builder / Engineer
1936 By Builder/Contractor: Unknown
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
51.8 Feet (15.8 Meters)
Structure Length
55.0 Feet (16.8 Meters)
Roadway Width
18.4 Feet (5.61 Meters)
Spans
1 Main Span(s)
Inventory Number
30721903092051

Historic Significance Rating (HSR)
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Bridge Documentation

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

This bridge is one of several tiny Parker pony truss bridges in this county. This bridge is quite a bit younger with a 1936 construction date, and the bridge's top chord and end posts are more heavily built-up than the other examples. As such, it is not known if this bridge is the work of the Penn Bridge Company as is suspected with the older examples. This bridge sits on stone abutments that undoubtedly are older than the bridge superstructure and originally supported a previous bridge.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 1926, 55' long and 22' wide, riveted Parker pony truss is supported on ashlar abutments with wingwalls. The polygonal top chords are built up members, the lower chords are angles as are the vertical and diagonal members. The original lattice railing has been replaced with beam guide rail railings. An example of a standardized design, the bridge has no innovative or distinctive details, and neither it nor its setting are historically significant.

Discussion of Surrounding Area

The bridge carries a 1 lane township road over a stream in a rural area of active farms at a T intersection west of Brave. The area is dominated by altered early through mid 20th century houses and trailers. It does not appear to have historic district potential.

Bridge Considered Historic By Survey: No


This bridge is tagged with the following special condition(s): Unorganized Photos

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Photo Galleries and Videos: Shamrock Bridge

 

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Bridge Photo-Documentation

Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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Bridge Photo-Documentation

Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
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Additional Unorganized Photos

Original / Full Size Photos
A supplemental collection of photos that are from additional visit(s) to the bridge and have not been organized or captioned. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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View Photo Gallery

Additional Unorganized Photos

Mobile Optimized Photos
A supplemental collection of photos that are from additional visit(s) to the bridge and have not been organized or captioned. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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Maps and Links: Shamrock 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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USGS National Map (United States Only)

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