I-25 North Express Lanes | US 36 to 120th

I-25 North Express Lanes: US 36 to 120th Avenue

About the Express Lane

The I-25 North Express Lanes currently are open between US 36 and 120th Avenue, running one lane in each direction, alongside general-purpose lanes. The US 36 Express Lanes connect to the reversible Central I-25 Express Lanes between US 36 and downtown Denver.

How to Use the Express Lane

I travel in a:



Tolled Vehicle.png

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

HOV 3+.png

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.


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

icon of a bus

Bus and other transit can travel in the Express Lanes.


  • Lanes are open 24/7, but connect to I-25 Central Express Lanes, which are reversible running to Denver in the morning and to Boulder in the afternoon. These lanes opened in March 2016, from 120th Avenue to existing I-25 Central Express Lanes in Denver, which end at US 36.
  • HOV/carpool, toll and transit options are available; motorcycles ride free.
  • Uses a dynamic pricing system in which tolls can change in price depending on the time of day.
  • Overhead signage indicate current toll prices. Tolls are collected through ExpressToll account or License Plate Toll.
  • Drivers can enter this section of the Express Lane in different locations between US 36 and 120th, but pay only the toll price once to use the North I-25 Express Lanes from US 36 to 120th Avenue.