Local and Express Routes (Effective Aug 10th, 2025)
Bus Routes w/alertsLocal and Express Routes
Tri Delta Transit is excited to launch the New TDT Network that was created based on feedback from the public and ridership data as part of the year-long project Revitalize Tri Delta Transit.
Routes will be changed to be more efficient, come faster and get you where you want to go. Route numbers will also change. New TDT Network information can be found below.
Service Span: Mon - Fri
Cities:
Pittsburg
Bay Point
Concord (Limited Service)
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Slight changes to the alignment to remove Kevin Drive, providing faster, more direct service.
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Reduced schedule to align with Mt. Diablo High bell schedule to make service more useful for high school students.
Service Span: Mon - Fri
Cities:
Antioch
Pittsburg
Bay Point
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Replaces current Route 380 service via Gentrytown Dr, James Donlon Blvd, and Contra Loma Blvd to provide improved access to Antioch High School during school times.
Service Span: Mon - Fri
Cities:
Antioch
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New name for Route 379.
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Change in alignment to serve Hillcrest Ave, Laurel Rd, Canada Valley Rd, and Lone Tree Way to provide better connections between the residential neighborhoods and Deer Valley High School.
Service Span: Mon - Fri
Cities:
Antioch
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Replaces current Route 380 service via Gentrytown Dr, James Donlon Blvd, and Contra Loma Blvd to provide improved access to Antioch High School during school times.
Service Span: Mon - Sun
Cities:
Antioch
- New direct, high frequency route connecting Pittsburg / Bay Point BART, LMC, and Antioch BART to provide faster, more useful service for the many riders who use this route.
- Replaces portions of the current Routes 380, 387, 388, and 390.
Service Span: Mon - Sun
Cities:
Antioch
- Provides a faster, more direct connection between Pittsburg / Bay Point BART, Pittsburg Center BART, LMC, downtown Antioch, and Antioch BART.
Service Span: Mon - Sun
Cities:
Antioch
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Replaces Route 387 between Pittsburg / Bay Point BART, downtown Pittsburg, and LMC with shorter, more reliable service.
Service Span: Mon - Sun
Cities:
Antioch
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New name for Route 391.
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Shortened to operate only between Antioch BART and Brentwood to provide more reliable service.
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Extension to Heritage High School during beginnng and ending school bell times to provide more direct service for students.
Service Span: Mon - Sun
Cities:
Antioch
- Restructured from Route 389 to provide faster, more direct service.
Service Span: Mon - Sun
Cities:
Antioch
- New route providing consistent service along Lone Tree Way.
Service Span: Mon - Sun
Cities:
Antioch
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New route connecting Antioch BART with Kaiser Medial Center and Dozier Libby High School with more consistent service throughout the day.
Service Span: Mon - Sun
Cities:
Antioch
- New Route providing neighborhood access along Hillcrest Ave and Canada Valley Rd with connections to Antioch BART and Walmart.