Bicycles on Bridges & in Tunnels

Unlimited non-motorized access on a bike lane adjacent to the vehicle travel lane.

Note: The Caltrans bike shuttle has been DISCONTINUED.

For more information about taking your bike on AC Transit, visit their Bikes on Buses page.

Golden Gate Transit provides bus service across the Golden Gate Bridge, and Golden Gate Ferry provides service between Marin and San Francisco. Learn more about taking bikes on Golden Gate Transit and Golden Gate Ferry.

Pedestrians and bicycles are not allowed in the Webster Tube, and access is limited in the Posey Tube. 

AC Transit provides bus service through both tubes. Learn more about bringing bikes on board AC Transit buses.

• Take Golden Gate Transit Route 40 to travel across the Richmond-San Rafael Bridge.  Learn more about bringing your bike on Golden Gate Transit.
• Closures of the Richmond-San Rafael bike & pedestrian path can be found on our Construction & Event Info alerts page.

The Eastern Span Bay Bridge Trail is now open. There is currently no bicycle and pedestrian access across the entire Bay Bridge; however, you can take your bike on transit or use the Caltrans Bike Shuttle to cross the Bay. Access to Treasure Island via the Bay Bridge Eastern Span may be reduced due to ongoing construction work. 

• All of AC Transit's Transbay Services, with the exception of the M, U, and MA lines, provide services across the Bay Bridge. For more information about taking your bike on AC Transit, visit their Bikes on Buses page.
• BART permits bicycles on trains. Take a look at BART's bicycle rules for additional information.
• Caltrans shuttles provide a total of 14 trips across the Bay Bridge during peak commute periods. Learn more about the Caltrans bus shuttle schedule and additional information. For questions or lost and found information, call (510) 286-6954.

For tolling information for the San Mateo-Hayward Bridge, please visit FasTrak.