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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
|---|---|---|---|---|---|
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Clarksville Bridge
| Center Street (PA-1001) Over Tenmile Creek | Clarksville: Greene County, Pennsylvania | Metal 9 Panel Rivet-Connected Pratt Pony Truss, Fixed and Approach Spans: Metal Through Girder, Fixed | By Builder/Contractor: Unknown |
| Technical Facts |
| Rehabilitation Date | Main Span Length | Structure Length | Roadway Width | Main Spans | Approach Spans | NBI Number |
| 1944 | 83 Feet (25.3 Meters) | 151 Feet (46 Meters) | 24 Feet (7.3 Meters) | 1 | 1 | 30101101500501 |
This bridge's unusual plate-like trusses give the bridge away as a bridge that used to carry or cross a railroad line. Railroads had a habit of occasionally designing truss bridges with members that have a flat plate-like quality to them. This bridge is very plate line, and indeed the diagonal members on this bridge are plates. This design is unusual because it is one that was only used by the railroads and even there only occasionally. The design of this bridge is similar to a railroad bridge in Michigan.
The bridge also features through plate girder approach spans.
The historic bridge inventory below seems ignorant to the above facts and as such, HistoricBridges.org disagrees with the below non-historic determination. However, HistoricBridges.org does agree with their comments that this bridge may date to the late 1800s. The railroad bridges built rigid rivet-connected truss bridges at an earlier date than highway bridge builders.
Information and Findings From Pennsylvania's Historic Bridge InventoryDiscussion of Bridge The skewed, 2 span, 151' long and 29.5' wide bridge consists of a thru girder main span over the channel and a Pratt truss approach span. The bridge is dated 1944, and the truss is an older span that was relocated and cut down considerably to fit (cut marks are visible on one end). It could date to the late 19th century and have been a rail-carrying facility. It is ill proportioned for its length because it was originally a much longer and thus necessarily deeper, span. Its original location is not known. A pedestrian sidewalk with a 3 high welded metal channel railing is cantilevered off the upstream elevation. The substructure consists of concrete abutments with wingwalls and a concrete pier. The safety shape barriers were placed in 1983. The bridge is not historically or technologically significant. Discussion of Surrounding Area The bridge carries a 2 lane street over a stream in Clarksville. East of the bridge is an area of altered early to mid 20th century vernacular housing. West of the bridge the housing appears to thin out to scattered, predominantly post-World War II residences. The area does not appear to have historic district potential. Bridge Considered Historic By Survey: No |
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