I-25 North Express Lanes: Mead to Fort Collins

I-25 North: Berthoud to Johnstown Phasing Update

Safety in the Work Zone

Struck-by-incidents are the leading cause of death and nonfatal injury in the construction industry, and that’s why we take this week to emphasize how important it is to drive safely—always, but especially in active construction work zones like the I-25 North Express Lanes corridor.

Currently, our staff works just a few feet from live traffic to rebuild this important interstate. We do everything we possibly can to keep our hundreds of workers safe along the 25 miles of our project work area, but we also need you to slow down and drive distraction-free. Ultimately, CDOT would like to thank I-25 North motorists and all of the men and women who are working on this project. Without their bravery and dedication, Colorado and the transportation industry would not be what it is today.

There’s no denying that our daily lives have changed drastically in the last two weeks, and in some cases, lives have been turned upside down. Many sacrifices are being made from closing businesses and schooling children at home to canceling events and moving work operations to our homes where possible.

While telecommuting might work for some occupations, construction clearly isn’t one of those. Without people physically on site to do the work, the I-25 North Express Lanes from Berthoud to Fort Collins would never become a reality. But while road work is progressing for now, that’s not to say it is totally business as usual on the jobsite. Here are some of the things work crews are doing a little differently these days:

  • Crew members are refraining from going into jobsite trailers or project offices unless absolutely necessary, and when they have to, they aren’t doing so in groups.
  • Daily safety briefings are being done with just a couple of people rather than the entire crew.
  • Paperwork is being done in the cab of pickup trucks and daily logs of work activities filled out at home.
  • Project management meetings are being conducted via phone.
  • Everyone is being told to NOT report to work if they feel ill, and anyone who doesn’t feel well on the job is immediately sent home.
  • All office staff and non-essential personnel who can work from home are doing so.
  • Though all workers in the field wear gloves, hand tools are being cleaned more vigilantly and workers are instructed to wash or sanitize their hands after removing gloves.
  • Workers are bringing their own water bottle to the jobsite to avoid using a common water cooler.
  • Portable restrooms are being sanitized more frequently.
  • Steering wheels and machinery equipment controls are being wiped down, particularly if different people will be moving in and out of the equipment throughout the day.

View Traffic Impacts

Communities along the north I-25 corridor are expanding rapidly, contributing to major economic growth in northern Colorado. The Colorado Department of Transportation will support this growth by delivering the I-25 North Express Lanes Project. This project will extend from Highway 56 in Mead to Mulberry Street in Fort Collins.

This project brings economic, environmental and quality of life benefits for northern Coloradans by:

 Making safety improvements to reduce the number of crashes and fatalities.

 Decreasing travel time and increasing trip reliability.

 Reducing emissions and improving freight efficiency.

 Employing congestion management and safety technology to improve the travel experience.

 Rebuilding aging and obsolete infrastructure.

 Improving bicycle, pedestrian and transit connectivity.

Learn more about the corridor improvements by clicking on the areas below:

Express Lanes: Northbound and southbound Express Lanes with HOV option will be added from US 56 to just past Prospect Road


  • Construction began between CO 402 and Mulberry in 2018.
  • Work between CO 56 to CO 402 is expected to begin construction in late 2019.
  • Once more funding is identified and secured, construction will begin from CO 66 to CO 56.
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