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Tri Delta Transit

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Tri Delta Transit
ParentEastern Contra Costa Transit Authority
Founded1977 (1977)
Headquarters801 Wilbur Ave, Antioch, California, United States
LocaleEast Contra Costa County, California
Service typebus service, paratransit
Routes17 weekday, 6 weekend[1]
Stopsapproximately 650[1]
Fleet
[1]
Daily ridership4,700 (weekdays, Q2 2024)[2]
Annual ridership1,304,700 (2023)[3]
OperatorTransdev[1]
Websitetrideltatransit.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 second 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]

Overview of fixed-route service

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Tri Delta Transit bus in Pittsburg.

Tri Delta Transit operates in eastern Contra Costa County and has stops in Antioch, Oakley, Brentwood, Bay Point, Pittsburg, Martinez, and Concord. Tri Delta Transit operates local and express routes on weekdays and local routes on weekends/holidays.

Major transfer points for the majority of Tri Delta Transit's routes include:

Route list

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Tri Delta Transit operates seventeen bus routes. On weekdays, all of them are operated throughout the cities of Concord, Bay Point, Pittsburg, Antioch, Oakley, Brentwood, and Martinez. On weekends, six of them are operated throughout the aforementioned cities except Concord and Martinez. They're intended to be the longer routes to cover the many segments of the weekday-only bus routes. Even though most of the routes have the same terminus, various of them have their own ways of reaching their terminus.[5]

All weekday routes
Route Westbound Terminal Eastbound Terminal
200X Martinez station (Amtrak) Pittsburg/Bay Point BART
201X Concord BART
202X Brentwood Park & Ride (loop back via Los Medanos College Brentwood Center)
300X Antioch BART Brentwood Park & Ride
379 Antioch Medical Center
380 Pittsburg/Bay Point BART Antioch BART
381 Pittsburg Marina Los Medanos College
383 Wilbur and Cavallo Rd (Tri Delta Transit HQ) Blue Goose Park
384 Antioch BART Brentwood Park & Ride
385
387 Pittsburg/Bay Point BART Antioch BART
388 Antioch Medical Center
389 Pittsburg/Bay Point BART (loop around via Bay Point)
390 Pittsburg/Bay Point BART Antioch BART
391 Pittsburg Center BART Brentwood Park & Ride
395 Antioch BART The Streets of Brentwood
709 Pittsburg/Bay Point BART Antioch BART
All weekend routes
380 Pittsburg/Bay Point BART Antioch BART
381 Pittsburg Marina Los Medanos College
388 Pittsburg/Bay Point BART Antioch Medical Center
389 Pittsburg/Bay Point BART (loop around via Bay Point)
391 Pittsburg Center BART Brentwood Park & Ride
395 Antioch BART Streets of Brentwood

References

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  1. ^ a b c d e "About Us". Tri Delta Transit.
  2. ^ "Transit Ridership Report Second Quarter 2024" (PDF). American Public Transportation Association. September 3, 2024. Retrieved September 5, 2024.
  3. ^ "Transit Ridership Report Fourth Quarter 2023" (PDF). American Public Transportation Association. March 4, 2024. Retrieved September 5, 2024.
  4. ^ Short Range Transit Plan 2020 – 2029 (PDF). Eastern Contra Costa Transit Authority. August 26, 2020. p. 1.
  5. ^ "Local Bus". Tri Delta Transit. Retrieved 19 July 2023.
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