Allegheny Portage Railroad

Bens Creek Arch Bridge (Cambria County, Pennsylvania)
Built 1832
Stone arch bridge over Bens Creek on SR 53
Open to traffic

Lilly Bridge (Cambria County, Pennsylvania)
Built 1832
Stone arch bridge over Burgoon Run on PA 53
Open to traffic

Muleshoe Curve Bridge (Blair County, Pennsylvania)
Built 1902; rail line abandoned by Conrail in 1981
Stone arch bridge over Old Route 22 on 6 to 10 trail
Open to pedestrians only

Skew Arch Bridge (Blair County, Pennsylvania)
Built 1832, Closed to traffic 1922, Restored in 1979
Stone arch bridge over Ravine on Pedestrian Pathway
Open to pedestrians only

Staple Bend Tunnel (Cambria County, Pennsylvania)
Built 1831-33
Tunnel on Rail Trail
Open to pedestrians only