Silver Line (San Diego Trolley)

The Silver Line is the fourth line in the San Diego Trolley system as well as the first circular route with service beginning in 2011. Planning for the Silver Line dates back to the early 1990s, upon the completion of the Downtown Loop, consideration was given to providing a downtown trolley service that circles around the loop. MTS (then MTDB) originally considered using three Vienna Class N1 cars formerly used on the Stadtbahn in the Austrian city of Vienna, but their age and limited power proved incompatible with the present trolley system, and renovations to make them so were considered unfeasible.[7]

Eventually, in 2005, MTS would settle on using PCC streetcars; which were formerly used by the San Diego Electric Railway, San Diego's former transit service, in the 1930s and 40s. Between 2005 and 2010, MTS acquired six PCC streetcars formerly used in San Francisco and Philadelphia, and would partner with the San Diego historic streetcar society,[8] a non-profit organization developed to educate the public of the history of the San Diego Electric Railway, to help restore these streetcars for use on the eventual line.[1]

In early 2011 the first of these streetcars, Car 529, was completed and the inauguration of the Silver Line was held on August 27, 2011.[4][9] Restoring this car for use in the trolley system required over 3,000 volunteer hours and $850,000 in donations.[10] For the first two weeks of the vintage trolley's run, riders who boarded at the 12th & Imperial Transit Center received "commemorative tickets" to use for boarding the trolley.[5][9] Due to the limited amount of streetcars, initial service for the line was limited to weekends and holidays every 30 minutes between the hours of 10 am to 2 pm. On December 20, 2011, service was expanded to Tuesdays and Thursdays from 10 am to 2 pm as well as weekends and holidays from 11 am to 3:30 pm. It was expected that more service hours will be added upon the completion of additional streetcars.[9]

In 2015, the line was renamed the SDG&E Silver Line after San Diego Gas & Electric (SDG&E) provided a grant to help restore streetcar number 530. The utility company also sponsors a 3rd-grade history curriculum that includes free rides on the line.[2]

On April 12, 2020, all Silver line operations were suspended indefinitely after five bus operators testing positive for coronavirus.[11][12]

Due to the limited amount of streetcars, service for the line as of December 2015 only operated every 30 minutes during Tuesdays and Thursdays from 9:52 am to 1:52 pm, as well as on weekends and select holidays from 10:52 am to 3:22 pm. As of July 2019, service operates on Saturdays and Sundays from 9:52 am to 5:52 pm (except holidays).[13]

As the heritage PCC streetcars are single-ended, the Silver Line operates one-way in a clockwise-only rotation around downtown San Diego.[5][15]

The "downtown loop" – the route for the Silver Line.

Location	Station	Connections
East Village, San Diego	12th & Imperial Transit Center	Blue Line  Green Line  Green Line Metropolitan Transit System: 4, 12, 901, 929 Greyhound Lines
Gaslamp Quarter, San Diego	Gaslamp Quarter	Green Line
Marina, San Diego	Convention Center	Green Line
	Seaport Village	Green Line
Core, San Diego	America Plaza	Amtrak California: Pacific Surfliner (at Santa Fe Depot) North County Transit District: Coaster (at Santa Fe Depot)  Green Line (at Santa Fe Depot)  Blue Line Metropolitan Transit System: 83, Rapid 215, Rapid 225, Rapid 235, Rapid Express 280, Rapid Express 290, 923, 992
	Civic Center	Blue Line  Orange Line
	Fifth Avenue	Blue Line  Orange Line Metropolitan Transit System: 3, 120
East Village, San Diego	City College	Blue Line  Orange Line Metropolitan Transit System: 2, 5, 7, 20, 30, Rapid 215, Rapid 225, Rapid 235, Rapid Express 280, Rapid Express 290
	Park & Market	Blue Line  Orange Line Metropolitan Transit System: 3, 5

The Silver Line began service in August 2011 with one operational heritage 1946 Presidents Conference Committee (PCC) streetcar, Car #529.[6][8] The vehicle also have had pantograph current collection equipment added, as the overhead power lines that MTS operates is not compatible with trolley poles that the PCC streetcars were originally equipped with. The car retained its trolley poles, however, for visual effect.

In March 2014, MTS took possession of a second 1946 Presidents Conference Committee (PCC) streetcar, destined to join the Silver Line fleet as Car #530.[16][17] Restoration work on this trolley car, aided by a grant from San Diego Gas & Electric, took one year, and Car #530 entered service on the Silver Line on March 2, 2015, as part of the centennial celebrations for Balboa Park.[2]

The first San Diego Trolley vehicle, Siemens–Duewag U2 unit 1001, has also been restored for use on the Silver Line. It was unveiled on July 11 2019.[18]

One of the future proposals for trolley expansion is to potentially extend the Silver Line from Downtown up towards Balboa Park and the Uptown communities.[19] MTS began work in March 2011 on a study to evaluate the feasibility of reconnecting Balboa Park, the San Diego Zoo and Downtown San Diego through a fixed-guideway, electrified 1.5-mile (2.4 km) streetcar line.[20] The project study corridor runs between the City College Trolley Station area, and Balboa Park, in the vicinity of the San Diego Zoo.[21] An alignment similar to the proposed one was last served by a streetcar system in 1949 on Line 7 (Park Boulevard-University Avenue to East San Diego) & Line 11 (Park Boulevard-Adams Avenue to Kensington).[22][23][24] In October 2012, MTS released a study to evaluate the feasibility of reconnecting Balboa Park and downtown San Diego via an electrified streetcar corridor.[20] This is the first step in the process to construct such a project. An initial timeline offered in the study for the project's completion was 5 years.[20] Since October 2012, no further action has been taken.

• San Diego Vintage Trolley website
• San Diego Electric Railway Association website