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Ravine Road Bridge

Ravine Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 7, 2015

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Key Facts

Facility Carried / Feature Intersected
Ravine Road Over Pohatcong Creek
Rural: Warren County, New Jersey: United States
Construction Date and Builder / Engineer
1938 By Builder/Contractor: Welding Engineers Inc. of Philadelphia, Pennsylvania

Technical Facts

Rehabilitation Date
Main Span Length
52 Feet (15.9 Meters)
Structure Length
56 Feet (17.1 Meters)
Roadway Width
12 Feet (3.66 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

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

Built in 1938, this bridge is a relatively early example of a welded truss bridge. An interesting detail on this bridge however is that the floorbeams are reused from some other pin-connected truss bridge, perhaps the previous one at this very location, or perhaps another one entirely. The salvaged and reused riveted floor beams have two large holes visible in the flanges at each end of the beams, this was for the u-bolt hangers of the previous pin-connected truss bridge that they were a part of. Outriggers have been welded to the ends of these floor beams.

Information and Findings From New Jersey's Historic Bridge Inventory

Discussion of Bridge

The one-span welded pony truss bridge is set on stone abutments, one of them with a later concrete buttress. The truss is composed of rolled I-sections welded together with gusset plates. The floorbeams are built-up with flange angles riveted to the web plates. Rolled stringers support a timber deck. The bridge replaces a pin-connected Pratt pony truss. It is one of three welded pony trusses crossing the same creek in Pohatcong Township. Although the bridge conveys the concept of the truss design, it no longer retains integrity of materials or design and is not individually eligible for listing in the National Register of Historic Places, nor does it currently contribute to an identified historic district.

Discussion of Surrounding Area

The bridge is located in a wooded area with scattered residences. The one-lane bridge carries a winding road over a stream.

Bridge Considered Historic By Survey: No


Photo Galleries and Videos: Ravine Road Bridge

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