Tags: Bus Company.
Tri Delta Transit also known as Eastern Contra Costa Transit Authority is the local public transportation provider for the eastern area of Contra Costa County in the San Francisco Bay Area of California U.S.A.. It provides local bus service in the communities of Bay Point Pittsburg Antioch Oakley Brentwood Discovery Bay and Byron. Tri Delta Transit local buses connect to the BART rapid transit system at Pittsburg/Bay Point and Concord.