Grossmont Transit Center
Grossmont Transit Center is a San Diego Trolley station located next to Grossmont Center in La Mesa, California. The station is served by the Green Line and Orange Line and is located just east of the junction between the two lines. The station serves a variety of residences, a dense commercial area, Sharp Grossmont Hospital, and has a park and ride commuter lot. History. Grossmont Transit Center opened as part of the third segment of the East Line (now Orange Line) on June 23, 1989, which operated from to . Green Line service began in July 1995, when  the segment connecting to first opened. An improvement project broke ground on February 17, 2010, to add elevators and a pedestrian bridge to the station, which was completed and began operation on November 19, 2011. Station layout. There are two tracks, each served by a side platform.