Carpool & Express Lanes

Carpool lanes, also known as High Occupancy Vehicle (HOV) lanes, are reserved for carpools, vanpools, buses, motorcycles, and eligible clean air vehicles during designated commute hours. Other vehicles are not allowed. HOV lane hours and carpool occupancy requirements vary by location. Outside of commute hours, these lanes are open to general traffic.

Express Lanes allow vehicles to pay full or discounted tolls, or travel toll-free depending on the lane’s operating requirements, to bypass traffic. Toll rates adjust dynamically, increasing with heavier traffic and decreasing when traffic is lighter.

View Carpool Lanes on the Interactive Map

As of January 1, 2026 the carpool requirements have changed on all Bay Area bridges except the Bay Bridge and Golden Gate Bridge. Visit GetFasTrak.org learn more about the new carpool rules.

Express Lanes

Toll Policies and FasTrak Rules for Each Bay Area Express Lane
Express LaneToll PolicyFasTrak Rule
I-680 Contra Costa 2+ FreeFasTrak Flex Required
I-580 2+ FreeFasTrak Flex Required
SR-237 3+ Free; 2-person Pay Half-Price TollsFasTrak Flex Required
I-880 3+ Free; 2-person Pay Half-Price TollsFasTrak Flex Required
US-1013+ Free; 2-person Pay Half-Price TollsFasTrak Flex Required
I-680 Sunol2+ FreeFasTrak Flex Required

Carpool Lanes

Showing 40 of 49 transit agencies
FasTrak Required
Express Lane
Occupancy: 3+

I-80 Eastbound- Fairfield to Vacaville

Details
  • Red Top Road (Fairfield) to Leisure Town Road (Vacaville) (www.expresslanes.511.org)
  • 3+ people per vehicle
  • FasTrak toll tag required in the carpool lane at the toll plaza
Hours
  • All days
    -
Show on Map
Bridge Approach
Occupancy: 3+

I-80 Eastbound San Francisco - Oakland Bay Bridge Approach

Details
  • Bryant St on-ramp; Bryant between Beale and 2nd Streets (San Francisco)
  • 3+ people per vehicle & other eligible vehicles
  • View Bridge Tolls on the San Francisco-Oakland Bay Bridge
Hours
  • MON-FRI
    -
Show on Map
FasTrak Flex Required
Bridge Approach
Occupancy: 3+

I-80 Eastbound Carquinez Bridge Approach

Details
  • Carquinez Strait along I-80 linking Crockett and Vallejo
  • 3+ people per vehicle & other eligible vehicles to receive discount, set Flex tag to "3"
  • 2 persons allowed but must pay full toll, set Flex tag to "2"
  • FasTrak Flex toll tag required in the carpool lane at the toll plaza
  • View Bridge Tolls on the Carquinez Bridge
Hours
  • MON-FRI
    -
  • MON-FRI
    -
Show on Map
Occupancy: 3+

I-80 Eastbound - Emeryville to Vallejo

Details
  • Powell St (Emeryville) to Carquinez (Vallejo)
  • 3+ people per vehicle & other eligible vehicles
Hours
  • MON-FRI
    -
  • MON-FRI
    -
Show on Map
FasTrak Required
Express Lane
Occupancy: 2+

I-680 Southbound - Sunol to Milpitas

Details
  • Hwy 84 (Sunol) to Hwy 237 (Milpitas) (www.expresslanes.511.org)
  • 2+ people per vehicle
  • FasTrak toll tag required in the carpool lane at the toll plaza
Hours
  • MON-FRI
    -
Show on Map
FasTrak Required
Express Lane
Occupancy: 2+

I-680 Southbound - Martinez to San Ramon

Details
  • Marina Vista Ave (Martinez) to Alcosta Blvd. (San Ramon) (www.expresslanes.511.org)
  • 2+ people per vehicle
  • FasTrak toll tag required in the carpool lane at the toll plaza
Hours
  • MON-FRI
    -
Show on Map
FasTrak Flex Required
Bridge Approach
Occupancy: 3+

I-680 Northbound Benicia Bridge Approach

Details
  • Marina Vista (Martinez) to Benicia Bridge Toll Plaza
  • 3+ people per vehicle & other eligible vehicles to receive discount, set Flex tag to "3"
  • 2 persons allowed but must pay full toll, set Flex tag to "2"
  • FasTrak Flex toll tag required in the carpool lane at the toll plaza
  • View Bridge Tolls on the Benicia-Martinez Bridge
Hours
  • MON-FRI
    -
  • MON-FRI
    -
Show on Map
FasTrak Required
Express Lane
Occupancy: 2+

I-680 Northbound - San Ramon to Alamo

Details
  • Alcosta Blvd (San Ramon) to Livorna Rd (Alamo) (www.expresslanes.511.org)
  • 2+ people per vehicle
  • FasTrak toll tag required in the carpool lane at the toll plaza
Hours
  • MON-FRI
    -
Show on Map
FasTrak Required
Express Lane
Occupancy: 2+

I-680 Northbound - Fremont to Sunol

Details
  • Grimmer Blvd (Fremont) to Paloma Wy (Sunol)
  • 2+ people per vehicle
  • FasTrak toll tag required in the carpool lane at the toll plaza
Hours
  • MON-FRI
    -
Show on Map
Occupancy: 2+

I-680 Northbound - Concord to Martinez

Details
  • Hwy 242 (Concord) to Marina Vista Ave ( Martinez)
  • 2+ people per vehicle & other eligible vehicles
Hours
  • MON-FRI
    -
  • MON-FRI
    -
Show on Map