Tri Delta Transit

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Tri Delta Transit
Tri Delta Transit 2017 logo.png
Founded1977 (1977)[1]
Headquarters801 Wilbur Ave, Antioch, California, United States
LocaleEast Contra Costa County, California
Service typebus service, paratransit
Daily ridership~10,500[1]
OperatorFirst Transit[1]

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 Pittsburg/Bay Point and Concord. Tri Delta Transit buses also connect with County Connection bus service, WestCAT bus service, Delta Breeze bus service and Amtrak at shared bus stops.

Overview of fixed-route service[edit]

Tri Delta Transit bus in Pittsburg

Tri Delta Transit operates in eastern Contra Costa County and has stops in Antioch, Oakley, Brentwood, Byron, Discovery Bay, Bay Point, Pittsburg, Martinez, and Concord. Tri Delta Transit operates local and express routes on weekdays, local routes on weekends/holidays, and shuttle service to San Francisco 49ers home games.[2]

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

Fleet Roster[edit]

Fleet Number(s) Thumbnail Build
Manufacturer Model Engine Transmission Notes
0094-0099 2000 MCI 102-EL3 Detroit Diesel Series 60 Allison B500 (Jake Brake) 0098 retired in 2013 and was auctioned off on 9/16/2013.
0296-0299 2002 MCI D4500 Detroit Diesel Series 60 Allison B500
0991-0999 2008 Gillig BRT 40'
Cummins ISL Allison B400R 2009 models.
1375-1399 2012 Gillig BRT 40'
Cummins ISL9 Allison B400R 2013 models.
1680-1699 2016 Gillig BRT 40'
Cummins ISL9 Allison B400R Replaced 2001 Gillig Phantoms
1893-1897 2018 Gillig BRT 40'
Cummins L9 Voith D864.6 Delivered in June 2018
1898 2018 Proterra Catalyst BE40 First electric bus for Tri-Delta Transit


External links[edit]