Final lane shift on southbound I-25 at CO 56 for I-25 North Express Lanes Project on Thursday

Travel Advisory

July 1, 2022 - Northeastern Colorado

Northern Colorado — On Thursday, July 7, 9 p.m. to Friday, July 8, 5 a.m., the Colorado Department of Transportation and the I-25 North Express Lanes Project will close the southbound I-25 on- and off-ramps at Colorado Highway 56 to shift southbound I-25 traffic to a new alignment. This will allow crews to complete work on the new ramps of the improved interchange. The new interchange will improve motorist safety and efficiency. Please follow posted detour signage in the area.

I-25 North lane shift map 2

North I-25 lane shift map

  • Southbound traffic exiting I-25 will continue south to exit 245 at Weld County Road 34/Mead, turn around and travel north to exit 250.
  • Traffic intending to travel southbound on I-25 will travel north to exit 252 at Colorado Highway 60/Johnstown, turn around and re-enter southbound I-25.

Please visit, for the most current travel updates. The I-25 North Express Lanes Project: Berthoud to Johnstown section will increase highway capacity by adding an Express Lane in each direction, rebuild interchanges, replace aging bridges, straighten highway curves to improve safety, make major utility and drainage improvements, and add carpool and transit facilities. During construction on the I-25 North Express Lanes Project, motorists should expect speed reductions to 65 mph, minor lane shifts, temporary concrete barriers and median bridge work. Motorists should also expect delays during the scheduled work hours. Construction on the Berthoud to Johnstown segment is expected to be complete in early 2024.

Project Contact Information

  • Project phone line - (720) 593-1996
  • Project email – [email protected]
  • Project web site -
  • Sign up for weekly project updates by logging onto the project web site and filling out the right-side form to “Subscribe to Project Updates.”

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!