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Hope Mills Bridge

Old Mercer Road Bridge

Hope Mills Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 1, 2006

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Key Facts

Facility Carried / Feature Intersected
Old Mercer Road (TR-401) Over Neshannock Creek
Location
Rural: Mercer County, Pennsylvania: United States
Construction Date and Builder / Engineer
1922 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
102 Feet (31 Meters)
Structure Length
104 Feet (32 Meters)
Roadway Width
17 Feet (5.18 Meters)
Spans
1 Main Span(s)
NBI Number
437204040126060

Historic Significance Rating (HSR)

Bridge Documentation

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

This is a six panel steel through truss with riveted connections. The bridge features v-lacing on the verticals and the bottom chord, and the portal bracing is a lattice design. The bridge's members are semi-massive, more so than the classic pin connected through truss, but not truly heavy like those found on Pennsylvania's U.S. and state highways. This bridge proves that riveted truss bridges built later in the truss bridge era can still have an attractive appearance to them, and blend into a forested setting in a manner similar to their pin connected ancestors. The beauty of metal truss bridges like this one is that while the trusses offer a geometric art that draws the eye, at the same time, the fact that this bridges steel is spread out throughout a truss web, it does not obstruct or block the view of its surroundings like a solid steel stringer bridge with its large, wall-like beams might.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 1922, riveted, single span, 104'-long, Pratt thru truss bridge is supported on ashlar abutments with concrete caps. The heavy trusses, designed to handle to high load capacity, are composed of built up members. The bridge has no innovative or distinctive details. It is a late example of a common technology used in Pennsylvania since ca. 1890 and built with frequency by both county and state highway bridge builders in the 20th century. Neither the bridge nor its setting are historically or technologically significant.

Discussion of Surrounding Area

The bridge carries 1 lane of a road over a stream in a sparsely developed, forested setting near Hope Mills. The area does not have historic district potential.

Bridge Considered Historic By Survey: No

Information From www.mercercotrussbridges.com Demolition Mitigation Website

Discussion of Bridge

The trusses of the single span, riveted Pratt Through Truss bridge are composed of heavy trusses designed to carry heavy loads. The abutments are ashlar, or dressed stone.

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Photo Galleries and Videos: Hope Mills Bridge

 
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Bridge Photo-Documentation
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A collection of overview and detail photos. 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: Hope Mills Bridge

Coordinates (Latitude, Longitude):
41.189340,-80.228430

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