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 Dumbarton Express bus at Union City station | |
| Founded | September 10, 1984 |
|---|---|
| Locale | San Francisco Bay Area |
| Service area | Alameda, San Mateo, and Santa Clara Counties |
| Service type | Bus service |
| Routes | 2 |
| Operator | MV Transportation |
| Website | dumbartonexpress |
Dumbarton Express is a regional public transit service in the San Francisco Bay Area connecting Alameda, San Mateo, and Santa Clara Counties via the Dumbarton Bridge, the system's namesake. The bus service is funded by a consortium of five transit agencies (AC Transit, BART, SamTrans, Union City Transit, and VTA). Dumbarton Express is administered by AC Transit and operated under contract by MV Transportation.