Express Lane tolling begins June 12th on I-25 between 120th Avenue and E-470/Northwest Parkway

Travel Advisory

June 9, 2020 - Statewide News

NORTHGLENN/THORNTON - Tolls will begin on June 12 on the I-25 North Express Lanes between 120th Avenue and E-470/Northwest Parkway and will range from $1.05 to $2.25, depending on time of day, with an ExpressToll pass. Until June 12, motorists can continue to use the new lanes for free as part of the testing period.  

The Express Lanes will be free for motorcycles and for vehicles with three or more people with a Switchable HOV Transponder pass.  Vehicles with fewer than three people will be charged a toll when driving the Express Lanes.  The adjacent general purpose lanes will always be free to all users. 

The new Express Lanes will be available 24 hours a day and connect to the existing I-25 North Express Lanes from US 36 to 120th Avenue, offering an option of a continuous trip from E-470/Northwest Parkway to downtown Denver and back.

Express Lanes offer a choice for motorists to get to their destination faster.  Express Lanes reduce travel times across all lanes, including the general purpose lanes. 

Below are some of the details and rules for the new I-25 North Express Lanes:

  • One toll will be charged for the whole section between 120th Avenue and E-470, no matter where the driver enters (or exits). Drivers will be charged a separate toll on the 120th Avenue to US 36 segment of the I-25 North Express Lanes.

  • Northbound travelers: 

    • There are three northbound entries: just south of 120th Avenue, at 128th Avenue and at 144th Avenue.

Southbound travelers: 

    • There are three southbound entries: just north of 144th Avenue, 128th Avenue, and just south of 120th Avenue

    • Entrances to the existing I-25 North Express Lanes are at US 36 and at 120th Avenue.

  • Do not cross the solid white lines; enter and exit at the designated entrances and exits marked with a dashed white line.

  • Get a Pass! ExpressToll saves money each time, at least 40% savings compared to the pricing without a pass. The same ExpressToll passes are used on all Express Lane and toll facilities in Colorado, including Express Lanes on US 36, I-25, I-70 Mountain, and E-470 and the Northwest Parkway.

  • Carpoolers must have a Switchable HOV Transponder pass to ride the Express Lanes for free.  Drivers should keep the transponder switched to the green “TOLL” option when traveling with fewer than three people in the car. When traveling in the HOV Express Lanes with three or more people, the transponder should be switched to the “HOV” option to travel for free.

  • Motorcycles may travel for free with no pass necessary

  • In addition to the new Express Lanes, the I-25 North Express Lanes project from 120th Avenue to Northwest Parkway/E-470 has made the following improvements:

  • Installed an auxiliary lane along northbound I-25 to connect the 136th Avenue on-ramp to the 144th Avenue off-ramp, which will help drivers merge more comfortably between the two interchanges

  • Resurfaced the roadway, which improves driving conditions

  • Made drainage and utility improvements along the corridor

  • Enhanced technology and operations at ramps through traffic metering devices 

About the High Performance Transportation Enterprise

The HPTE operates as a government-owned, independent business within CDOT. It searches out innovative ways to finance projects to help Colorado fulfill its commitment to increase travel choices through options that include Express Lanes, transit, biking, walking and carpooling. For more information, visit