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Warwick Furnace Road Bridge

Warwick Furnace Road Bridge

Primary Photographer(s): Elaine Deutsch

Bridge Documented: 2008

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Key Facts

Facility Carried / Feature Intersected
Warwick Furnace Road Over South Branch French Creek
Location
Rural: Chester County, Pennsylvania: United States
Construction Date and Builder / Engineer
1889 By Builder/Contractor: John Denithorne and Sons of Phoenixville, Pennsylvania

Technical Facts

Rehabilitation Date
1987
Main Span Length
55 Feet (17 Meters)
Structure Length
58 Feet (18 Meters)
Roadway Width
15 Feet (4.57 Meters)
Spans
1 Main Span(s)
NBI Number
15701504240199

Historic Significance Rating (HSR)

Bridge Documentation

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

This bridge is a good example of John Denithorne & Son, a local bridge builder who built a number of bridges in Chester County. Very few examples of their work can be found outside of the southeastern Pennsylvania area. The company was noted for their unusual use of isolated single "X" lattice patterns under the top chord and end posts, a detail which is visible on this bridge. On a similar note, the v-lacing on the vertical members ends at the pole railings, and the rest of the vertical member uses battens. This design allows for the battens to also hold the pipe railings in place, since the pipe pass through the batten plates.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The one-span, 58'-long, pin-connected, wrought-iron, pony truss bridge is supported on stone abutments. The bridge has built-up upper chords and verticals, and eye bar lower chords and diagonals. U-shaped hangers support built-up floorbeams. The floorbeams extend outward beyond the truss lines to provide points to connect the angle outriggers. The bridge is among the oldest examples in the region of the pin-connected Pratt truss bridge design with standard details, such as all pin connections, all members composed of standard built-up shapes or eye bars, and U-shaped floorbeam hangers, that were common from the mid 1880s to the early 20th century. It was built by John Denithorne & Son, a leading fabricator of metal truss highway bridges in the county and region.

Discussion of Surrounding Area

The bridge carries a 2 lane road over a stream in a rural setting with scattered 18th to 20th century residences and active farms. At the south end of the bridge, opposite a Tintersection of two local roads, is a ca. 1800 log and stone residence. North of the bridge is a late-20th-century residence on a wooded lot.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Warwick Furnace Road Bridge

 
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Maps and Links: Warwick Furnace Road Bridge

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