| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor |
| Wallace Road Bridge | Wallace Road Over North Fork Little Beaver Creek | Rural: Lawrence County, Pennsylvania | Metal Pinned Pratt Full-Slope Pony Truss, Stationary | 1892 By: Penn Bridge Company of Beaver Falls, Pennsylvania |
| Technical Facts |
| Structure Length | Main Span Length | Roadway Width | Bridge Width | Main Spans | Approach Spans |
| 88 Feet (26.8 Meters) | 80.1 Feet (24.4 Meters) | 14.8 Feet (4.5 Meters) | 15 Feet (4.57 Meters) | 1 | None |
This seven panel pony truss is an extremely important example of the work done by a local company that was quite prolific in the region, but also did work well beyond the local region as well. The Penn Bridge Company was noted for a very unusual detail on many of its truss bridges, this feature being the use of two pins, one for the hip vertical and one for the diagonal member at the top chord connection at the end post. The Wallace Road Bridge features this unique detail. The fact that this bridge features this detail, is associated with a prominent builder, and also appears to retain good historic integrity (including original rolled floorbeams), makes this bridge very significant and worthy of preservation.
Another even more significant example of this sort of bridge is in nearby Beaver County on Watts Road.
Information and Findings From Pennsylvania's Historic Bridge InventoryDiscussion of Bridge The single-span, 88'-long, seven-panel, steel pin-connected Pratt pony truss bridge, built in 1892, is constructed of built-up steel members and eyebars. It is supported on masonry abutments with wingwalls and its railings are fabricated from single steel pipes. Unlike many such small pony truss bridges, the bridge has no outriggers. Discussion of Surrounding Area The bridge carries one lane of a two-lane road over Little Beaver Creek in a sparsely developed, wooded setting. Bridge Considered Historic By Survey: Yes |
