California Department of Transportation

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Connecting San Francisco to the Silicon Valley 

US 101 South is the main access route to San Francisco International Airport (SFO) from the North and South Bay. Along the peninsula, it serves as a major gateway route between San Francisco and Silicon Valley, as well as providing access to San Jose International Airport (SJC) in the southern end of the corridor. It links with the East Bay via the Dumbarton Bridge (SR 84), the San Mateo Bridge (SR 92), and the SFO Bay Bridge (I-80) in San Francisco, and it provides access to the Port of Redwood City.

Corridor Specific Issues

  • Access to San Francisco and San Jose International Airports
  • Significant commute traffic to/from Silicon Valley and San Francisco
  • Robust transit network with bus transit, Caltrain and BART services
  • Developing urban centers along El Camino Real
  • Access to airport and Bayshore business parks, industrial uses, sport and entertainment venues, as well as Peninsula and South Bay communities

CMIA Projects

The CSMP requirement is noted in the Baseline Agreements of all projects receiving CMIA funding. CMIA funds have been allocated for the following improvement projects in the US 101 South Corridor:

  • Widen Yerba Buena to I-280/I-680 Interchange
  • Auxiliary Lanes: SR-85 to Embarcadero Rd
  • Auxiliary Lanes: Marsh Rd to Embarcadero Rd


View a copy of the US 101 South Fact Sheet by clicking here.

For More Information, please contact: 

Katie Benouar
Office of Sytem Planning
District 4
(510) 286-5553





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