I-25 Central Express Lanes

Central I-25 Express Lanes

The I-25 Central Express Lanes are two reversible lanes between US 36 and downtown Denver, and are barrier-separated from the general-purpose lanes. Depending upon time of day, the I-25 Central Express Lanes in downtown Denver can connect to both the North I-25: US 36 to 120th Avenue Express Lanes and the US 36 Express Lanes.

Toll Rates
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How to Use the Express Lanes

These lanes are reversible, running Denver-bound in the morning and Boulder or north in the afternoons. Overhead signage indicates if the lanes are open and the toll price.

I travel in a:



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Pay a toll, either as a solo driver, or as a driver and one passenger.

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Drivers can carpool. HOV/Carpoolers must have an ExpressToll account and Switchable HOV transponder as well as a driver plus two or more passengers to use for free.

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Motorcyclists can use the Express Lanes for free without a pass.

Corridor Basics

The I-25 Central Express Lanes are two reversible lanes between US 36 and 20th Street in downtown Denver. To accommodate traffic volumes to and from downtown, the lanes are open in the southbound direction from 5 a.m. until 11 a.m. and northbound direction from noon until 3 a.m.

Travelers are never forced to pay a toll and can always choose to travel in the adjacent, free general-purpose lanes. The I-25 Central Express Lanes connect to the North I-25 Express Lanes (from US 36 to 120th Avenue) and US 36 Express Lanes (from Federal Boulevard to Table Mesa Drive in Boulder). The I-25 Central Express Lanes opened in June 2006.

Hours of Operation:

  • These lanes are reversible:
    • Southbound travel is open 5-11 a.m.
    • Northbound travel is open noon - 3 a.m.
    • For weekends, the northbound lanes open from noon on Friday until 3 a.m. on Monday.
  • HOV, toll options are available; motorcycles ride free.
  • Uses an adjustable pricing system in which tolls can change in price depending on the time of day.
  • Overhead signage indicates current toll prices. Tolls are collected through ExpressToll account or License Plate Toll.