System Map

Welcome to Tri Delta Transit!

Serving the cities of Antioch, Pittsburg, Brentwood, Oakley and Bay Point, with limited service in Concord and Martinez, we operate 15 local bus routes Monday-Friday (including route 300) and five on weekends & holidays. Every day we help East Contra Costa residents get to BART, work, school, the doctor, the library, parks, the movies, shopping centers, the grocery store, recreation activities, or just across town to visit family & friends.

Getting Started

Getting started is easy. To figure out which route you need, scroll through the attached system map. Routes are color coded to help you locate individual routes serving your location. Once you know which route(s) you need, click the above link called “Schedules and Maps” to see your selected route(s) including bus arrival times.

If you need assistance reading the schedule, click here to read our “How to Ride the Bus” page. Or, give us a call at 925-754-4040 and we’ll be happy to assist you.

Print System Map System Map

Use the right side and bottom scroll bars to follow a route.

System Map

System Map Legend

 

200 Martinez/Pittsburg (Weekdays Only)

 

201 Concord Route

 

300 Antioch BART/Brentwood (Weekdays Only/Commute Hours)

 

379 Antioch Deer Valley (Antioch Unified School District days only)

 

380 Pittsburg Bay Point BART/Antioch BART (Weekdays Only)

 

381 Pittsburg Marina/Los Medanos College Pittsburg (Weekdays only)

 

383 Antioch/Brentwood (Weekdays Only)

 

384 Brentwood Park & Ride / Antioch Bart (Weekdays Only)

 

385 Brentwood / Antioch

 

387 Pittsburg Bay Point BART/Antioch BART (Weekdays Only)

 

388 Pittsburg Bay Point BART/Antioch (Weekdays Only)

 

389 Pittsburg Bay Point BART/Bay Point (Weekdays Only)

 

390 Pittsburg Center BART/Antioch BART (Weekdays Only/Commute Hours)

 

391 Pittsburg Center BART/Brentwood Park & Ride (Weekdays Only)

 

392 Pittsburg Bay Point BART/Antioch BART (Sat. Sun. & Holidays Only)

 

393 Antioch BART / Brentwood Park & Ride (Sat. Sun. & Holidays Only)

 

394 Pittsburg Bay Point BART/ Antioch BART
(Sat. Sun. & Holidays Only)

 

395 Brentwood / Antioch BART
(Sat. Sun. & Holidays Only)

 

396 Somersville Towne Center / Bay Point (Sat. Sun. & Holidays Only)

 

Bus Route

Bus Route Variation

Bus Route Variation

Parking

Parking

 

Point of Interest / Landmark

Ticket location

Ticket location

School

School

Hospital

Hospital

State Highway

State Highway