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Dump Hill Road Bridge

Dump Hill Road Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: May 29, 2010

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Facility Carried / Feature Intersected
Dump Hill Road (PA-3014) Over Nescopeck Creek
Location
Rural: Luzerne County, Pennsylvania: United States
Construction Date and Builder / Engineer
1905 By Builder/Contractor: Unknown
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
130.0 Feet (39.6 Meters)
Structure Length
134.0 Feet (40.8 Meters)
Roadway Width
17.7 Feet (5.39 Meters)
Spans
1 Main Span(s)
Inventory Number
40301400202380

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge no longer exists!

Bridge Status: This bridge has been demolished and replaced!

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

This bridge is an extremely rare example of a pin-connected Camelback truss in Pennsylvania. The Pennsylvania Historic Bridge Inventory dismissed the bridge as not eligible for the national register. Perhaps there used to be hundreds of camelback trusses in Pennsylvania and this assessment was justified years ago when the inventory was conducted, but today, the number of such bridges in Pennsylvania is extremely small, and surviving examples should be considered eligible.

The seven panel bridge is a traditionally composed structure that aside from a minor alteration to the diagonals at the center panel, retains good integrity of materials and design. The truss composition includes: Top chord and end post: back-to-back channels with cover plate and v-lacing, Diagonal members and bottom chord: up-set eyebars, vertical members: back-to-back channels with v-lacing on each side, struts: two pairs of angles with v-lacing, sway bracing: design composed of riveted angles, floor beams: rolled i-beams riveted directly to vertical members, railing: original lattice railings, deck: open metal grate deck on rolled i-beam deck stringers.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The single span, 134'-long, pin-connected, steel camelback thru truss bridge built in 1905 is supported on stone abutments. The truss members are eyebars and rods for the tension members and built-up sections for the compression members. The bridge has A-frame portals, stock metal lattice railings, open steel grid deck (ca. 1960), steel stringers, and rolled floorbeams. The diagonals in the middle panel have welded repairs at the lower panel points (ca. 1960). The camelback truss design is a Pratt truss with polygonal top chord of exactly five slopes. It found limited application for spans in the range of 100' to 200' because of the economy of design of the polygonal top chord which offered bridge engineers the ability to vary the depth of the trusses, and thus achieve savings of material. By 1890, the Pratt and Pratt variation truss designs, including camelback, had emerged as the most popular of the pin-connected designs because of their simplicity of design and economy of fabrication and erection, especially the use of eye bars to facilitate field connections. They continued to be used through the first two decades of the 20th century. The bridge is an altered, later example of its type/design with no unusual or noteworthy features. The designer/builder are undocumented by available state records. The bridge is not historically or technologically distinguished by its setting or context.

Discussion of Surrounding Area

The bridge carries a 2 lane road over a stream in a rural setting with scattered late 19th to late 20th century houses. The western quadrants are wooded. At the eastern end is a T-shaped intersection. On the east side of the intersection is a late 19th century picturesque vernacular house and an early 20th century house. The setting does not have the cohesiveness or integrity of a historic district.

Bridge Considered Historic By Survey: No

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Photo Galleries and Videos: Dump Hill Road Bridge

 

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Bridge Photo-Documentation

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Bridge Photo-Documentation

Mobile Optimized Photos
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View Video

Eastbound Crossing of the Bridge

Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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View Video

Eastbound Crossing of the Bridge, Additional Take

Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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Maps and Links: Dump Hill Road Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

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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