Callowhill Depot is a bus and trolley barn operated by SEPTA, located in West Philadelphia, near the Delaware County border.
The depot was constructed as part of the Thomas E. Mitten modernization program.
The Callowhill Depot is located in the heart of West Philadelphia, located on the southwest corner of the 5900 block of Callowhill Street with the bus and trolley bays across the street.
Callowhill Depot was the base of all streetcar routes that operated in West Philadelphia, until National City Lines converted most of them to buses.
The depot is accessible only to SEPTA employees, however, transit enthusiasts often photograph streetcars pulling in and out.