1874: (
Archived Bridge Hunter;
Bridge Hunter)
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HistoricBridges This 949' (289m) long bridge has a main span of 406' (124m). It was rehabilitated in 1983 and 2011. "The Kittanning Bridge is one of the larger examples of a state standard plan truss bridge in Pennsylvania. Like many states, during the 1920s-1940s, Pennsylvania had a set of standard truss bridge plans that it used for bridge construction during that period. The designs varied slightly over the years and also varied based on the size and configuration of the crossing. Each state had its own particular general design however. Ohio for instance had state standard plan bridges with a very plain design, nearly all beams being rolled instead of built-up. New York favored polygonal Warren truss bridges. Pennsylvania had perhaps the most visually impressive and beautiful of the state standard truss bridges however. Their designs favored the traditional truss types of the Parker and Pratt, and their beauty stemmed greatly from a frequent use of massive, imposing portal bracings that gave the bridge an impressive appearance. In addition, Pennsylvania favored built-up beams with v-lacing and lattice for its larger spans such as the Kittanning Bridge, which further enhanced the beauty of the bridges." |
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Jackson-Township historical preservation posted
Bridge under construction over the Allegheny River in Kittanning, Armstrong County in 1932. In the foreground you can see a steam tractor. Ted Scarlett: That appears to be a steam roller |
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| BridgeHunter_1932, Pinterest |
The predecessor bridge was a bowstring truss.
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| BridgeHunter_1874 |
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