Boyer Crossing Bridge [Map · Street View] Lost Pratt through truss bridge over Allegheny River on TR 414Replaced by a new bridgeBuilt ca. 1910; rehabilitated 2001; replaced 2009
Cole Creek Bridge [Map] Lost pony truss bridge over Cole Creek on TR 350Replaced by new bridgeBuilt 1915; replaced 2001
Kendall Bridge [Map] Lost Deck truss bridge over Allegheny River, Service Plant Road, Railroad on Route 346Replaced by a new bridgeBuilt 1928; Demolished & Replaced 1974 Kinzua Bridge [Map · Street View] Deck girder bridge over Kinzua Creek on former Erie Railway at Kinzua Bridge State ParkRemaining spans open to pedestrian trafficBuilt 1900, closed to traffic in 1959, mosly destroyed by a tornado on July 21, 2003, remaining spans rehabilitated and reopened in 2011 as the "Kinzua Sky Walk"
Kinzua Bridge (Original) [Map] Lost Deck truss bridge over Kinzua Creek on Erie RailroadReplaced by a new bridgeBuilt 1882; Replaced 1900 Lower Portage Road Bridge [Map] Warren pony truss bridge over Skinner Creek on TR 408 (Lower Portage Road)Open to trafficBuilt 1920; rehabilitated 1990
Marvin Creek Bridge - Poor Farm [Map] Warren pony truss bridge over Marvin Creek on Pedestrian WalkwayOpen to pedestrians onlyRehabilitated for pedestrian use ca. 2014-2015, Dedication April 22, 2016.
Old Kinzua Bridge [Map] Lost Deck truss bridge over Kinzua Creek on former New York, Lake Erie and Western RailwayReplaced by new bridgeBuilt 1882, replaced in 1900
Oswayo Creek BridgeLost through truss bridge over Oswayo Creek on PA 44Replaced by new bridgeBuilt 1928; rehabilitated 1975; replaced 1997
Portage Creek Bridge [Map] Pony truss bridge over Portage Creek on TR 409Replaced by a new bridgeBuilt 1908 by Groton Bridge Co.; rehabilitated 1981
Potato Creek Bridge [Map] Lost pony truss bridge over Potato Creek on TR 377Replaced by a new bridgeBuilt ca. 1905 by the York Bridge Co. ; replaced 2012 Potato Creek Bridge [Map] Pony truss bridge over Potato Creek on TR 373Open to trafficBuilt ca. 1900; rehabilitated ca. 1960
PSN - State Line Viaduct [Map] Lost Deck plate girder bridge over Allegheny River on Pittsburg, Shawmut & Northern RailroadRemovedBuilt 1909; Removed ca. 1947
Tunungwant Creek Bridge [Map] Lost through truss bridge over Tunungwant Creek on PA 346Replaced by new bridgeBuilt 1930; rehabilitated 1949; replaced 1997