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Bridge Tolls

Tolls increased July 1, 2010 on all Bay Area bridges except the Golden Gate Bridge, including carpool and some vanpool tolls. The discounted toll is only available to 3-person carpools and hybrids with FasTrak in designated carpool lane(s). 

http://mtc.ca.gov/tolls/

http://rideshare.511.org/511maps/tolls.aspx

FasTrak Carpools get discounted bridge tolls during peak commute hours with FasTrak and access to carpool lanes.  (Carpools consists of 3 or more people per vehicle)