Philadelphia Suburban Transportation Co.

Reporting mark: PST; Red Arrow Lines
Radnor Trail - Conestoga Road Overpass (Delaware County, Pennsylvania)
Built 1905
Pony/through plate girder bridge over Conestoga Road on Radnor Trail
Open to pedestrians only

SEPTA - Conestoga Road Overpass (Delaware County, Pennsylvania)
Built 1905
Closed-spandrel arch bridge over Conestoga Road on Septa (P&W)
Open to traffic

SEPTA - Darby Creek Bridge (Delaware County, Pennsylvania)
Warren deck truss bridge over Darby Creek on SEPTA 102 Line
Open to traffic

SEPTA - Mill Road Overpass (Delaware County, Pennsylvania)
Built 1905
Closed-spandrel arch bridge over Mill Road on Septa (P&W)
Open to traffic

SEPTA - Schuylkill River Viaduct (Montgomery County, Pennsylvania)
Built 1911
Deck truss bridge over Schuylkill River on SEPTA Norristown High Speed Line (former Red Arrow Lines/Philadelphia & Western)
Open to traffic