Express Lanes

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Understanding & Using Express Lanes

Improving roadways is critical to meeting the transportation needs of Colorado, one of the top five fastest-growing states in the country.

Using Express Lanes is easy and provides travelers more reliable, predictable travel times. Travelers are never forced to pay a toll.

To use any Colorado Express Lanes, you will need an ExpressToll account and pass to avoid a higher toll. The Switchable HOV3+ Transponder is the only pass that allows you to choose the carpool option.

Express Lanes Safety Tips 

  • Speed limits apply to the Express Lanes as well as the general purpose lanes. Motorists should not exceed the posted speed limits when using the Express Lanes.
  • Safety and Toll Enforcement program: Express Lanes should be entered and exited through a dashed line at designated points only. Weaving in and out of the Express Lanes and entering or exiting outside of the designated areas will result in a fine.
  • Express Lanes should never be used as a passing lane. Express Lanes are offered next to the free general purpose lanes to provide drivers with a choice and an option of reliable travel time, but it’s not safe to use Express Lanes as a passing lane.

Where Express Lanes Are, Where They'll Be 

 
Express Lanes Open

US 36

   Denver to Boulder
   Open

C-470

 I-25 to Wadsworth Boulevard
   Open

Westbound I-70 Mountain

  Idaho Springs to Empire
   Open

I-70 Express Lanes: Evergreen to Idaho Springs 

  Evergreen Idaho Springs
   Under Construction 

I-25 Central

  Downtown Denver to US 36
   Open

I-25, US 36 to E-470

  US 36 to E-470 / Northwest Parkway
   Open

I-25 Express Lanes: Berthoud to Fort Collins

  Berthoud to Fort Collins
   Open for Testing

I-25 North Express Lanes: Mead to Berthoud

  Mead to Berthoud
   Under Construction 

I-25 Express Lanes: Monument to Castle Rock

  Monument to Castle Rock
   Open

Central 70

  I-25 to Chambers Road
   Open

Express Lanes Master Plan

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Express Lanes Safety and Toll Enforcement Program 

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Questions

Do you have questions about your ExpressToll account?

Please call ExpressToll Customer Service at 303-537-3470, or 1-888-946-3470.



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