Parent | Eastern Contra Costa Transit Authority |
---|---|
Founded | 1977 |
Headquarters | 801 Wilbur Ave, Antioch, California, United States |
Locale | East Contra Costa County, California |
Service type | bus service, paratransit |
Routes | 17 weekday, 6 weekend[1] |
Stops | approximately 650[1] |
Fleet |
|
Daily ridership | 4,700 (weekdays, Q3 2024)[2] |
Annual ridership | 1,304,700 (2023)[3] |
Operator | Transdev[1] |
Website | trideltatransit.com |
Tri Delta Transit, formally the Eastern Contra Costa Transit Authority, is a joint powers agency of the governments of Pittsburg, Antioch, Oakley, Brentwood, and Contra Costa County that provides bus service for the eastern area of Contra Costa County, California, United States.[1] Tri Delta Transit local buses connect to the BART rapid transit system at Antioch, Pittsburg Center, Pittsburg/Bay Point and Concord. Tri Delta Transit buses also connect with County Connection bus service. In 2023, the system had a ridership of 1,304,700, or about 4,700 per weekday as of the third quarter of 2024.
Tri Delta Transit service began on June 6, 1977. Initial service was two local routes in Antioch and Pittsburg, which connected with express bus service serving BART. AC Transit operated the service under contract until 1984, when it was transferred to a private operator.[4]