CDOT to temporarily close Larimer County Road 16 under I-25 for one day

Travel Advisory

April 8, 2021 - Northeastern Colorado -

Larimer County — On April 10, there will be a full road closure of Larimer County Road 16 under I-25 from 7 a.m. to 5 p.m. to allow for the installation of the new drainage pipeline. This new drainage pipe is related to safety improvements along I-25 between Berthoud and Fort Collins.

A detour will be in place to Larimer County Road 18. Commuters can take the Frontage Road from LCR 16 to LCR 18 or take Larimer County Road 3e or Larimer County Road 7. 

Travel Impacts

Please visit the website,, for the most current travel updates. Construction on the I-25 North Express Lanes Project: Berthoud to Johnstown project will typically take place Monday through Friday from 7 a.m. to 5:30 p.m., with occasional nighttime lane closures from 9 p.m. to 5 a.m. 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 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.”

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!

Whole System. Whole Safety.

In early 2019, CDOT announced its Whole System — Whole Safety initiative to heighten safety awareness. This initiative takes a systematic, statewide approach to safety combining the benefits of CDOT’s programs that address driving behaviors, our built environment and the organization's operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.     

About CDOT

CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000 lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other agencies, including metropolitan planning organizations, local governments and airports. It also administers Bustang, the state-owned and operated interregional express service. Gov. Polis has charged CDOT to further build on the state’s intermodal mobility options.