US-101 Express Lanes

The US-101 Express Lanes run between I-380 in South San Francisco and N. Mathilda Avenue in Sunnyvale and along southbound SR-85 from US-101 in Mountain View to SR-237.

General Info

Hours of operation:

  • MON-FRI, 5:00 AM to 8:00 PM

Carpool occupancy: 3 or more people


  • Solo drivers must have a standard FasTrak or FasTrak Flex toll tag (set to '1') to pay tolls to use the lane.

  • Carpools, vanpools and motorcycles must have a FasTrak Flex toll tag (set to the number of people in the vehicle) to travel toll free or at a discount. Eligible Clean Air Vehicles must apply for a FasTrak CAV tag to receive toll discounts.

See "Am I Toll Exempt?"

Visit 511's Express Lanes FasTrak Overview Page or Visit

Lane Operator
Press Contact


Need more information? Check out our resources page

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