Thursday, December 9, 2021

1881+1968 CSX/B&O/P&LE and 1937 Jerome Street Bridges over Youghiogheny River in McKeesport, PA

Railroad: (Bridge Hunter; Historic Bridges; Satellite)

Street View, it is too bad the driver wasn't going in the other direction so that it was in the closer lane.

Rust Belt Railroading posted

"1881 trusses replaced in 1968 for B&O mainline relocation" [BridgeHunter-railroad]
P&LE Photo via HistoricPittsburgh, License: Creative Commons Attribution-Share-Alike (CC BY-SA)

This is an example "of an exceedingly rare variety of arch bridge, that of a crescent arch. The design of a crescent arch is that of an arch which begins as a solid rib, which splits apart and becomes a braced rib in the middle of the span." [HistoricBridges-vehicle]
Lee Paxton Photo via BridgeHunter-vehicle, License: Creative Commons Attribution-Share-Alike (CC BY-SA)

Street View

This is another example in Pennsylvania of where the space is so narrow between the river and the hills that they built the turnout for a branch on the bridge.
Jeffrey McDonough posted
Not my photo .. bridge is at the intersection of the mon river and the yough river near McKeesport pa , I think it’s a pretty cool structure.
Chuck Considine

On The Road in Pennsylvania added
The B & O (Baltimore & Ohio) and the P & LE (Pittsburgh & Lake Erie) Railroad Bridge πŸŒ‰,  that crosses the Youghiogheny River. This snapshot πŸ“· 🌎 πŸ‡ΊπŸ‡Έ was taken from the B & O side of the river, at Broadford, PA in Fayette County, on May 22nd, 2002. Photograph courtesy of Jack D. Kuiphoff. On The Road in Pennsylvania I hope you Enjoy! πŸ™‚ πŸ˜‰ πŸ™‚
Jeffrey Linton shared
David Paul: The location where it came in the B&O was called "West Yough" (pronounced West Yock)

William Novak commented on Jeffery's post
Look out below! (From the Pittsburgh Tribune Review, June 8, 2014. On CSX.)
[Looking at street views, there was a road under that part of the bridge.]

"This bridge was built in 1968 and is an extremely late example of a truss bridge that uses rivets in its construction. Specifically, rivets are used in the built-up members. Connections are bolted. The lack of v-lacing and lattice in all built-up members is also typical for this late era in riveted built-up beams. Approach spans are welded girders, with no rivets." [HistoricBridges-railroad] It struct me that, because of the nearby road bridge, I can get a closeup of the members. I can clearly see where bolts were used to fasten the members, but I can't see where rivets were used to build the members.
Street View


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