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Express Lanes Hours Days
I-680 Southbound 5 am to 8 pm Monday through Friday
SR-237 - Westbound 5 - 10 am and 3 - 7 pm
SR-237 - Eastbound 5 - 9 am and 3 - 7 pm
I-580 - Westbound 5 am - 8 pm
I-580 - Eastbound 5 am - 8 pm

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Call 1-877-229-8655
From outside USA: +1-415-486-8655

Customer Service Representatives available:
Monday - Friday 8:30am - 5:30pm
Saturday 9:00am - 1:00 pm
Or use our Automated Phone System
CARPOOLS IN I-580 & I-680 CONTRA COSTA EXPRESS LANES
Photo by Noah Berger
The I-580 and I-680 Contra Costa express lanes require a FasTrak Flex toll tag for toll-free travel by a carpool, motorcycle, or eligible Clean Air Vehicle (CAV). The new FasTrak Flex toll tag can also be used at all other FasTrak facilities and for parking at garages displaying the FasTrak logo.
Ways to Get a FasTrak Flex Toll Tag
Open FasTrak Account
You can order a FasTrak Flex toll tag to be sent to you by mail. Be ready with an email address, credit card and vehicle information: license plate #, make, model, and state of registration. If you want to pay by cash or check, call our Customer Service Center.

Sign Up
Order By Mail
Log into your existing FasTrak account, go to "Vehicles and Tags" and order a FasTrak Flex toll tag. You should receive it in about one week or less.

My Account
Pick Up At Store
Find a retail store which carries FasTrak Flex toll tags by clicking the button below, and then clicking the FasTrak Flex button lower-left beneath the map. After you pick up a FasTrak Flex toll tag, register it to an existing FasTrak account or open a new account.

Find A Retail Store
Exchange Standard FasTrak for FasTrak Flex toll tag
You can easily exchange your standard FasTrak toll tag with a FasTrak Flex toll tag online or over the phone.

How To Exchange
I-580 Express Lanes
The westbound express lane goes from Greenville Road to San Ramon Road. The eastbound express lane goes from Hacienda Road to Greenville Road.
When Available
I-580 Express Lanes are available Monday through Friday from 5 am to 8 pm. At other times, these lanes are open to regular traffic.
How to Use a FasTrak Flex Toll Tag
Before you start your trip, set the switch position on your FasTrak Flex toll tag as shown below. Position (2) and (3+) signals that you are a carpool, motorcycle, or eligible CAV for toll-free travel.
I-680 Contra Costa Express Lanes
The northbound express lane goes from Alcosta Boulevard to Livorna Road. The southbound express lane goes from Rudgear Road to Alcosta Boulevard.
When Available
I-680 Contra Costa Express Lanes are available Monday through Friday from 5 am to 8 pm. At other times, these lanes are open to regular traffic.
Express Lanes
FasTrak Flex Toll Tag
Using Carpool Lanes