December 6, 2017 Published in Traffic & Transportation

66 Express Lanes Inside The Beltway Usage Update

The Virginia Department of Transportation provides the following statistics for 66 Express Lanes inside the Beltway: Over the first three rush-hour periods, there have been no major reportable incidents on the lanes, sustained travel times and speeds for carpools, buses, and toll-paying drivers.

66 Express Lanes Snapshot for Tuesday, Dec. 5 Morning Rush
Vehicles: About 12,000
Average Speed: 54 miles per hour (compared with 37 mph last December)
Pricing Snapshot:  Prices opened at $11 and closed at $15.75.  A trip along the entire nine-mile corridor ranged from $3.75 at 5:40 a.m. to $40 at 8:06 a.m. The high and low price each remained for six minutes (toll prices are updated every six minutes).

Percentage of vehicles traveling with E-ZPass transponders: 86%
Percentage traveling without a transponder (includes motorcycles): 14%
HOV-2 traveling for free with E-ZPass Flex: 41% (Up from 37% yesterday a.m.)

66 Express Lanes Snapshot for Monday, Dec 4, 2017


5:30 a.m. - 9:30 a.m.

3 p.m. - 7 p.m.

Average speed

57 mph (36 mph prior typical)

59 mph (49 mph prior typical)

Vehicles with E-ZPass



Vehicles without E-ZPass



High Occupancy Vehicles riding for free



Solo drivers with E-ZPass



Highest price for the full corridor

$34.50 (8:36 a.m.-8:42 a.m.)

$12.50 (6:12 p.m.-6:18 p.m.)

Lowest price for the full corridor

$4.50 (5:42 p.m.-5:48 p.m.)

$5.50 (4:12 p.m.-4:24 p.m.)


Lowest price for one zone

$.50, multiple places/times

$.50 multiple places/times

Traffic Volumes
Vehicles passed through each toll gantry

Beltway/Rt. 7


Beltway/Rt. 7


Dulles Access Rd./ Washington Blvd.


Dulles Access Rd/Washington Blvd.


Sycamore/Fairfax Dr.


Sycamore/Fairfax Dr.


Glebe Rd./Spout Run


Glebe Rd./Spout Run


Arterial congestion
Change compared to an average rush hour

Route 7


Route 7


Route 29


Route 29


Route 50


Route 50


Route 123


Route 123


Route 193


Route 193



No significant traffic impacts observed on arterials

Backups due to rash at Jaguar Trail

More on the Lanes and the Rules
Weekdays from 5:30 a.m. to 9:30 a.m. eastbound and 3 to 7 p.m. westbound, from I-495 to U.S. Route 29 in Rosslyn, vehicles with two or more people continue to use I-66 for free with an E-ZPass Flex, while single-occupant drivers have the to use this stretch of I-66 by paying a toll with E-ZPass.

All vehicles traveling during these periods need an E-ZPass transponder, and HOV-2+ vehicles need an E-ZPass Flex transponder switched to HOV mode to travel for free. Exemptions for Dulles International Airport users and Clean Special Fuel License Plate vehicles (hybrids) are no longer in effect. The lanes remain open to all users during off-peak periods, including weekends.  

Express Lanes inside the Beltway are the nation's first of their kind, dynamically tolling all lanes during peak periods. They are designed to move more people by making carpools and bus service more reliable, and giving drivers a choice to pay for the reliable trip. Prices will change based on real-time traffic volumes in order to manage demand for the lanes and keep traffic moving. Revenues will continue to fund multi-modal improvements along the corridor for more reliable alternatives to driving alone.

Reminders for Drivers

  • Use the 66 Express Lanes App
    Download the app or visit for current price estimates (and soon historical pricing) to help plan commutes and decide whether to use the lanes. 
  • Plan and Know your Travel Options
    With more reliable carpool and bus trips, I-66 drivers are asked to consider new commuting options by and I-66 Commuter Choice to learn about all options including new and recently expanded service in the corridor.
  • Get an E-ZPass or E-ZPass Flex
    All drivers on this section of I-66 during express lane hours need a transponder: an E-ZPass Flex if traveling toll-free as HOV-2+ Get an E-ZPass and view all available retail locations at or by calling 877-762-7824.
  • Missed a Toll or Traveled Without a Transponder?
    Visit, select “Missed a Toll,” and enter your license plate. The transaction will show within three days of travel, and can be paid within six days of travel to avoid receiving a violation notice. Call the E-ZPass Customer Service Center at 1-877-762-7824 with any questions.

For more information, visit

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