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Johnston Street Bridge

Johnston Street Bridge

Primary Photographer(s): Marc Scotti

Bridge Documented: September 16, 2010

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Facility Carried / Feature Intersected
Johnston Street Over Salt Lick Creek
Location
New Milford: Susquehanna County, Pennsylvania: United States
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown
Rehabilitation Date
1995
Main Span Length
54.0 Feet (16.5 Meters)
Structure Length
55.0 Feet (16.8 Meters)
Roadway Width
14.8 Feet (4.51 Meters)
Spans
1 Main Span(s)
Inventory Number
32741

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This ca. 1890 bridge was relocated here in 1913 and is a very old rivet-connected truss bridge with unusual design details including lack of verticals and use of u-bolt hangers. U-bolts are usually only found on pin-connected truss bridges.

Someone thought it would be a great idea to add cyclone fencing to this bridge. It started on one side of the bridge and later someone took it even further and fenced the other truss too. This should be removed and replaced with something that does not make the bridge look ugly. This is one of the finest and most significant historic bridges in the county and should be treated as such.

A similar (but not identical) bridge is found in New York State. The builder of both is unknown.

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

View Historic American Engineering Record (HAER) Documentation For This Bridge

 

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The single span, 55'-long, Warren pony truss bridge built in 1913 is supported by concrete abutments. An unusual detail is the paired U-shaped hangers for the rolled floorbeams. The hangers sit on cast-metal saddles placed above the riveted connections of the lower panel points. U-shaped floorbeam hangers are a typical detail of late-19th-century pin-connected truss bridges, but are rare with rivet-connected truss bridges. Beginning in the late 1890s, rivet-connected truss bridges gained popularity because of improvements in field riveting technology, and in the transition from pinned to riveted truss bridges, U-shaped floorbeam hangers were largely abandoned in favor of riveted floorbeam connections, especially with the popular Warren truss design. The paired hangers of this 1913 Warren truss bridge are thus a rare and technologically significant holdover detail from an earlier period of pin-connected truss design. No other bridges of similar age and type identified by the survey have a similar paired U-shaped hanger with saddle floorbeam connection detail.

Discussion of Surrounding Area

The single lane bridge carries a street and a sidewalk over a stream in an area of late-20th-century residences in New Milford Borough. The setting does not appear to have historic district potential.

Bridge Considered Historic By Survey: Yes


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

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Photo Galleries and Videos: Johnston Street Bridge

 

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Unorganized Photos

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A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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Unorganized Photos

Mobile Optimized Photos
A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
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Maps and Links: Johnston Street 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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