This bridge is an attractive multi-span example of a standard plan truss bridge in Pennsylvania. It is particularly worth a visit because not only it is heavily skewed, it is easy to get the elevation view of the bridge, unlike other bridges of this type, which for whatever reason are often obstructed by trees.
Information and Findings From Pennsylvania's Historic Bridge Inventory
Discussion of Bridge
The skewed, 6 span, 704' long bridge consists of 4, riveted, 149' long Pratt thru truss spans over the river and a steel stringer span at each end (1 @ 60', 1 @ 26'). The substructure consists of ashlar abutments and piers with concrete caps. The piers have been repaired with concrete on their upstream side. The upper chord and inclined end posts are built up box sections, and the verticals and diagonals are rolled section. The bridge has no innovative or distinctive details. It was built to a state standard design in 1939 is neither historically nor technologically significant. Riveted truss bridge technology dates to the early 20th century.
Discussion of Surrounding Area
The bridge carries a 2 lane road over the Kiskiminetas River, providing access into the Allegheny Ludlum (Allegheny Teledyne) Steel Plant that is beyond the northerly end of the bridge in West Leechburg borough. The bridge is not part of the mill, and it is not located in or adjacent to any potential historic district related to the mill or the towns.
Bridge Considered Historic By Survey: No
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