Church service
In 1951–52, Muni acquired a fleet of new PCC streetcars - the first Muni streetcars with a cab at only one end. These single-ended cars required a loop or wye to turn around at terminals, as they could not simply reverse direction. A wye was constructed at Church and 30th Street; it was put in service on December 22, 1957, allowing PCC streetcars to enter J Church service.