CDOT to have multiple closures for I-25 North Express Lanes Berthoud to Johnstown Project over the next two weeks

Travel Advisory

October 5, 2021 - Northeastern Colorado

Larimer and Weld Counties — From Oct. 4 to 18, the I-25 North Express Lanes Project will require multiple closures. 

  • On Oct. 4 and 5, from 9 p.m. to 5 a.m., there will be nightly full closures of eastbound and westbound Colorado Highway 60 over I-25 to install the remaining bridge girders. During these times, northbound and southbound traffic on I-25 will proceed up and over the ramps at CO 60.

    • Westbound CO 60 traffic will take the northbound I-25 on-ramp at CO 60 to CO 402. Traffic will turn at CO 402 and take I-25 south to the CO 60 off-ramp and continue westbound on CO 60.

    • Eastbound CO 60 traffic will take Weld County Road 7 north to Larimer County Road 14, east to County Road 13 and south to CO 60.

    • To access westbound CO 56, northbound I-25 traffic will stay on I-25 to the CO 402 interchange, take the northbound off-ramp to access the southbound on-ramp to southbound I-25, then take the southbound off-ramp at CO 56.

  • Starting Monday, Oct. 11, from 7 a.m. to 5 p.m., there will be a full closure of eastbound and westbound Weld County Road 46 at I-25 to install new bridge girders for the bridge at I-25. Drivers will detour on Colorado Boulevard to the east or Weld County Road 7 to the west, to travel north to CO 60 or south to Colorado Highway 56/Weld County Road 44.

i25-berthoud closure

  • From Monday, Oct. 11 at 8 a.m. to Friday, Oct. 15 at 5 p.m., there will be a full closure of Larimer County Road 16 at I-25 to install new drainage pipes. Drivers will detour on the Frontage Roads to E. CR 14 or CO 402.

i25-berthoud-closure map

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 piece is expected to be complete in 2023. 


  • 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.”

About CDOT

CDOT’s Whole System-Whole Safety program has one simple mission — to get everyone home safely. Our approximately 3,000 employees work tirelessly to reduce the rate and severity of crashes and improve the safety of all modes of transportation. The department manages more than 23,000 lane miles of highway, more than 3,000 bridges and 35 mountain passes. CDOT also manages grant partnerships with a range of agencies, including metropolitan planning organizations, local governments and airports. It also operates Bustang, the state-owned interregional express bus service. Gov. Jared Polis has charged CDOT to further build on the state’s intermodal mobility options. 

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!