This particular bridge was fabricated by the McClintic-Marshall Company of Pittsburgh, Pennsylvania at their Buffalo, New York Works. The bridge was also erected by McClintic-Marshall, but also with the assistance of an unknown contractor. This unknown contractor was also responsible for removal of the previous bridge. Original plans for the bridge specify field paint to include a first coat of "P. D. H. #8 Sandstone" and the second coat to be "P. D. H. #9 Drab."
Pennsylvania's historic bridge inventory is a poor way to evaluate whether a bridge should be preserved. Bridges such as this one were not listed as historic, because they feel this bridge is common technology. HistoricBridges.org argues that yes, it was common technology... back in 1930! You don't find bridges such as this one being built on today's roadways. Also, sometimes a bridge is significant, not because it is unique and alone, but because it stands in a group. Such is the case with this bridge, which stands along with two others along this road. Because of their frequency on this road, the entire roadway is a unique bridge experience, that can't be had anyplace else. While aesthetics on their roads is obviously not a concern for demolition-happy PennDOT, it should be. Due to attrition, a scene like this: seeing three multi-span massive-member truss bridges within a short distance is historic. It represents what roads might have been like back to drive on in the late truss bridge era.
Information and Findings From Pennsylvania's Historic Bridge Inventory
Discussion of Bridge
The 1934, skewed, riveted, 2 span, 295'-long, Pratt thru truss bridge is supported on concrete abutments and piers. The trusses have rolled section verticals and diagonals and built up lower and upper chords. The bridge has no innovative or distinctive details. Built to a state highway department standard design used with great frequency since the mid 1920s, the bridge is an undistinguished example of a common technology. Nor is the highway historically significant. Although now designated US 6, it was not a part of the original highway developed across Pennsylvania's northern tier. In the 1910s and 1920s it was part of SR 5, promoted as the Lakes to the Sea Highway, one of the many tourist trails in the state. Following the adoption of the federal numbering system in 1926 it was renumbered SR 19. Its was redesignated as part of US 6 following WW II.
Discussion of Surrounding Area
The bridge carries a 2 lane highway with shoulders and a sidewalk over a stream at the Venango borough-Cambridge township line. The area does not have historic district district potential. The bridge is not contiguous with the developed portion of Venango borough. To the north are more scattered, predominantly post-WW II residences.
Bridge Considered Historic By Survey: No
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