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The I-66 corridor is on the threshold of a multi-phase improvement plan that will dramatically impact the way everyone travels. The 15 to 20 year transformation will begin Inside the Beltway, a project that includes:

  • Enhanced mobility along the corridor - moving up to 40,000 vehicles per day, by 2040
  • Funded by tolls, commuters will experience better transit options with higher frequency
  • Improved TDM (Transportation Demand Management) resources and incentives 
  • Connectivity to over 90 miles of express lanes by 2022

why Commute66? 

Commute66 aims to help you understand the changes that are happening along the corridor, specifically:

  • Dynamic tolling (Eastbound: 5:30-9:30 a.m. | Westbound: 3-7 p.m.)
  • New rules for all road users, with minimal toll exceptions
  • E-ZPass required for all vehicles



A portion of the toll revenue from the I-66 Express Lanes, inside the Beltway, will fund improvements along the corridor. 

  • Fairfax Connector express service from Government Center to State Department
  • Loudoun County Stone Ridge enhanded transit
  • Peak period service expansion for Metro 2A (Washington Boulevard - Dunn Loring)
  • PRTC Gainsville to Pentagon commuter service
  • Expanded transit access through Capital Bikeshare
  • Bus stop consolidation and accessibility improvements
  • Peak period service expansion for ART 55 (East Falls Church - Rosslyn)
  • Multimodal real-time transportation information screens
  • Expanded outreach to the I-66 corridor


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Virginia’s Department of Transportation (VDOT) plans to transform I-66 both inside and outside of the Beltway to better mitigate traffic. From Exit 64 (I-495 interchange) in Fairfax County to Exit 72 (Rt 29/Lee Highway) in Arlington County, the stretch of interstate between these two points are defined as inside the Beltway.

I-66 will now operate strictly as express lanes with a toll during peak travel hours during the week. Outside of tolling hours of operation, entry to the express lanes is free.

In the first year, toll revenue will fund 10 multimodal projects to enhance predictability and travel time on I-66. Projects include expanded bus service, extended transit access through bikeshare, real-time transit displays and more, as selected by the Northern Virginia Transportation Commission (NVTC).

From Exit 64 (I-495 interchange) in Fairfax County to Exit 72 (Rt 29/Lee Highway) in Arlington County, the stretch of interstate between these two points is defined as inside the Beltway. Once a driver passes I-495, this stretch of road is considered outside the Beltway.

If you drive alone eastbound on I-66 during the hours of 5:30-9:30 a.m., you will be subject to a toll. If you ride with at least one additional person in the car and have an E-ZPass Flex, you can travel I-66 for free.

The same rules apply for anyone traveling westbound from 3:00-7:00 p.m.

Anyone traveling outside of these hours or in the opposite direction will not be affected by tolling.

Anyone can use the I-66 express lanes, with a valid E-ZPass mounted in the car. Commuters can choose to pay a toll if driving alone or can consider sharing the ride. Carpools and vanpools travel for free on the I-66 express lanes with an E-ZPass Flex; additionally, commuters can choose a regional bus option* like the Fairfax Connector or Loudoun County Transit to travel the I-66 corridor.

For assistance with your commute along I-66 and into Arlington County, request your custom commute via our commute planner. A business development manager will be in touch within 1-2 business days.

*Prices for commuter buses vary.

The express lanes are officially open to everyone now, if you have an E-ZPass mounted in your car. Vans, buses, single occupant drivers, taxis, carpools and more can all use the express lanes – there are no restrictions.

There is no age minimum when it comes to a carpool. You can carpool with your children or other adults.



Tolling is set to begin in early December 2017. Toll gantries have been added along I-66, inside the Beltway and are currently in testing mode. Any flash of light you see from now until the end of November is simply a test.

The toll gantries are not speed cameras and you are not being charged at this time.

Tolls are in effect Monday through Friday, 5:30-9:30 a.m. (traveling eastbound) and 3:00-7:00 p.m. (traveling westbound).

There is no maximum toll along the I-66 express lanes. It is based entirely on demand for the lanes and prices will adjust with current traffic volume.

Before you enter the I-66 express lanes, drivers will see two pricing signs before committing to use the lanes. The price on final toll sign is the driver’s toll and is locked in automatically via the E-ZPass when entering the express lanes.

Dynamic tolling means the price that a driver will pay to use the express lanes is based entirely on the demand for the road. Toll prices adjust to manage traffic and to maintain a free flow speed of 45 mph. When there is more traffic, the toll price will be higher; when there is less traffic, the toll price will be lower.

By choosing to pay the toll, a road user can expect a more predictable trip along the I-66 corridor.

The electronic toll gantries along the corridor are monitoring the distance of your trip as well as the current demand for the lanes. You are not charged every time you travel under a gantry; you are only charged when you enter the lanes.



Yes – every I-66 road user will need to have an E-ZPass if traveling during the toll hours of operation. If traveling outside of the hours of operation, you will be able to use the lanes without an E-ZPass. For toll hours, you should choose the standard or the flex based on your plans to carpool. Those previously exempt (eg. hybrid/clean fuel cars, Dulles Airport staff) will now be required to pay a toll.

The only exception to this rule is for motorcycles and on duty law enforcement.

The standard is best if you drive alone. The flex is best if you will carpool (HOV2+ is free).

If you do not use your E-ZPass Flex within the first six months, you will be charged a small fee. You should only purchase the flex if you plan to regularly carpool during commute hours.

You need an E-ZPass (standard or flex) to travel the I-66 lanes during the toll hours of operation. You can purchase one from the Arlington Commuter Stores as well as at the DMV, AAA and select grocery stories.

Visit ezpassva.com or call 877.762.7824 for additional information.

An E-ZPass costs $35 with $15 available in toll fare. The remaining $20 balance is available as toll fare once you register your E-ZPass online, essentially making the E-ZPass free.

When you register your E-ZPass, you can also connect it to a credit card to automatically add funds when low. The minimum add is $35.

If you use the I-66 express lanes without an E-ZPass, you will receive a toll invoice in the mail. The invoice will be mailed to the address associated with the car using the lanes. Alternatively, you can visit ezpassva.com to pay your missed toll.

I-66 will be monitored by toll enforcement officers. If you use your E-ZPass Flex without the required number of people in the car (HOV2+), you will be pulled over and fined. Toll enforcement will spot check your car and are notified by the gantries which type of E-ZPass you are attempting to use.



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Download Frequently Asked Questions Guide
Download the Information Presentation on I-66
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