cars stuck on I-66, arlington virginia

I-66 Outreach

The I-66 corridor now operates strictly as express lanes during peak travel hours and these changes may impact your employees and your business. Arlington Transportation Partners (ATP) can assist your company or property in understanding the dynamic tolls, resulting in your employees and tenants learning the best way to travel I-66 inside the beltway.

Learn more: | Tolling & E-ZPass | New Rules | Resources


Similar to I-95 express lanes, I-66 operate under dynamic tolling with no max toll. All drivers must have an E-ZPass mounted in the car to use the express lanes.

Dynamic tolls

When a toll is dynamic, the fee to use the lanes is adjusted to volume on the roads and demand for the lanes. The suggested toll aims to maintain a free-flow speed of 45 mph; drivers will see two pricing signs before committing to the express lanes. Once a driver enters the lane, a price is locked in place.

Hours of operation

Dynamic tolls are in effect Monday to Friday at rush hours:

  • Eastbound: 5:30-9:30 a.m.
  • Westbound: 3:00-7:00 p.m.

The lanes will be free for all users during off-peak periods, including weekends and holidays.

E-ZPass required

E-ZPass transponders are available at Arlington County Commuter Stores, DMV, AAA, and at some grocery stores. Purchase price is $35, with $15 available for immediate use; the remaining balance is available to use after a driver registers the transponder.

Visit or call 877.762.7824.

Standard vs Flex options

  • Standard – best option if you are most likely to drive alone.
  • Flex* – best option if you are most likely to carpool (toll is free for flex users, with 2+ people)

*There is a fee if you do not use your flex within the first six months.