This is the Skew Arch Bridge, which was built at the intersection of the Allegheny Portage Railroad and the Northern Turnpike. The lowest five masonry course are parallel to the ground, and the masonry of the skewed arch meets them at an angle. Skew Arch Bridge is listed on the National Register of Historic Places, as part of the Allegheny Portage Railroad National Historic Site.Galleries:Allegheny Portage Railroad, Arch BridgesKeywords:allegheny portage railroad, angled masonry, arch bridge, bridge, gallitzin, masonry, pennsylvania, sandstone, skew arch bridgePhoto Location: Skew Arch Bridge, Allegheny Portage Railroad National Historic Site, PennsylvaniaPhotographer: Dr. Roy WinkelmanDate of Photo: 11/25/2011Device Make: CanonDevice Model: Canon EOS 5D Mark IIOriginal Dimensions: 5616×3744Picture Orientation: LandscapeGPS Coordinates: 40°27'11.00"N 78°32'34.23"WPicture Number: 15912
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