Pittsburgh Light Rail

Reporting mark: T
PAT - Fallowfield Trestle (Old) (Allegheny County, Pennsylvania)
Lost Deck plate girder bridge over Ravine and Dagmar Avenue on PAT Trolley
Replaced by a new bridge

PAT - Monongahela River Bridge (Allegheny County, Pennsylvania)
Built 1903; raised in 1912-16 grade separation; rebuilt 1982 for light rail
14 panel Baltimore through truss bridge over Monongahela River, many city streets and I-376 on Panhandle Railroad/ Pittsburgh T Transit
Open to traffic

PAT - Mount Washington Tunnel (Allegheny County, Pennsylvania)
Built 1902-4
Tunnel on Port Authority of Allegheny County Busway/Light Rail
Open to PAT traffic only.

WLE - Castle Shannon Viaduct (Allegheny County, Pennsylvania)
Deck plate girder bridge over PAT Blue Line and Castle Shannon Blvd on W&LE RR
Open to traffic