SEPTA Route 10

SEPTA Route 10 SEPTA Subway–Surface Trolley Lines
The Route 10 trolley before it enters the 36th Street Portal.
Overview
System	Subway-Surface Trolley Lines
Termini	Overbrook, Philadelphia Center City, Philadelphia
Stations	8
Operation
Depot(s)	Callowhill Depot
Technical
Line length	11.6 mi (18.7 km)
Track gauge	5 ft 2 1⁄4 in (1,581 mm)
Electrification	overhead lines

SEPTA's Subway-Surface Trolley Route 10 (a.k.a.; the Lancaster Avenue-Subway Line) is a trolley line operated by the Southeastern Pennsylvania Transportation Authority (SEPTA) that connects the 13th Street station in downtown Philadelphia, Pennsylvania, to the Overbrook Loop (a.k.a.; Malvern Loop) station in the Overbrook section of West Philadelphia. It is one out of five lines that is part of the Subway-Surface Trolley system, and is 11.6 mi (18.7 km) long.

Starting from its eastern terminus at 13th Street, Route 10 runs in a subway tunnel under Market Street. It has underground station stops at 15th Street, 19th Street, 22nd Street, 30th Street, and 33rd Street. From 15th to 30th Streets, it runs on the outer tracks of the Market Street Subway Tunnel used by SEPTA's Market–Frankford Line. Passengers may transfer free of charge to the Market–Frankford Line at 13th Street, 15th Street, and 30th Street and to the Broad Street Line at 15th Street. Connections to the SEPTA Regional Rail can be made at 30th Street. There is an underground passageway that connects the ex-Pennsylvania Railroad's 30th Street Station to the Market-Frankford Line's 30th Street Subway Station, but this has long been sealed off due to high crime. An underground passageway continues to serve between the 13th and 15th Streets stations and Jefferson Station and Suburban Station, respectively.