I-25 closures at CO 7 for girder placement next week

Travel Advisory

Dec. 2, 2025 - Denver Metro/Central Colorado - Traffic detours via exit/entrance ramps

Adams/Broomfield Counties – As part of the Colorado Department of Transportation’s Interstate 25 & Colorado Highway 7 Interim Mobility Hub project, I-25 will have the following overnight closures to install concrete girders for the new pedestrian bridge:

  • Northbound I-25 at CO 7 – Monday, Dec. 8, 8 p.m. to 5 a.m.
  • Southbound I-25 at CO 7 – Tuesday, Dec. 9, 8 p.m. to 5 a.m.

Drivers can expect a single lane closure at 8 p.m., a double lane closure at 9 p.m., and a full closure of I-25 at 11 p.m. on both nights. Traffic then will detour around the closure via the CO 7 exit and entrance ramps (Exit 229). Slower traffic and delays should be expected. Traffic control personnel will be present to manage traffic flow and maintain safety on the ramps and CO 7. All lanes will reopen to traffic by 5 a.m.

In case of inclement weather, the work will be rescheduled for Dec. 10 and Dec. 11.

Closing I-25 at night allows the work zone to be expanded for the construction team and allows the traveling public to safely travel through the area.

Installing the girders is a milestone for this mobility hub project, which began in March 2025. Primary work includes adding a Park-and-Ride lot in the southeast quadrant of the interchange, constructing Bustang slip ramps, building a pedestrian bridge over I-25, and installing a permanent water quality pond. This hub will improve regional connectivity and mobility and provide more reliable transportation options and improve travel times.

The project is scheduled for completion in fall 2026.

I-25 detour route via off- and on-ramps at CO 7
I-25 detour route via off- and on-ramps at CO 7

Project Contact Information

For additional information about this project, contact the project team:

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.
  • Stay Alert! Expect the unexpected.
  • Watch for workers. Drive with caution.
  • Don't change lanes unnecessarily.
  • Avoid using mobile devices such as phones while driving in work zones.
  • Turn on headlights so that workers and other drivers can see you.
  • Be especially alert at night while driving in work zones.
  • Expect delays, especially during peak travel times.
  • Allow ample space between you and the car in front of you.
  • Anticipate lane shifts and merge when directed to do so.
  • Be patient!

Download the COtrip App!

The new free COtrip Planner mobile app was designed to meet the growing trend of information on mobile and tablet devices for the traveling public. The COtrip Planner app provides statewide, real-time traffic information, and works on mobile devices that operate on the iOS and Android platforms. Visit the Google Play Store (Android devices) or the Apple Store (iOS devices) to download!