Learn, give input on the Safety, Mobility and Bikeway Project along CO 119 Diagonal

News Release

December 11, 2023 - Northeastern Colorado - Project update available online to the public with an open house on Dec. 13

Boulder County – The Colorado Department of Transportation, the Regional Transportation District and Boulder County are implementing safety and mobility improvements along Colorado Highway 119 that will make traveling through the corridor safer for all modes, as well as faster and more reliable for public transit.

The projects will begin in 2024. The online presentation videos are available for the public to get an update on the project, learn more about the safety improvements to the unsignalized intersections and provide feedback on options for a potential pedestrian underpass connecting to 2nd Avenue in Niwot.

Videos and community comment forms are currently available at https://www.codot.gov/projects/co119-mobility.

In addition, an in-person open house will be held on Dec. 13 from 5:30 to 7 p.m. at Lefthand Grange, 195 2nd Ave, in Niwot.

“By the year 2040, the Diagonal Highway between Boulder and Longmont is expected to see a 25 percent increase in vehicular traffic,” said Heather Paddock, CDOT northeast regional transportation director. “Increased traffic can result in more congestion, delays, tailpipe emissions and potentially more crashes. CDOT, RTD and Boulder County are taking action to mitigate these outcomes and expand transportation options beyond private automobiles.”

In the coming months, the project team will be completing the proposed design, planning the potential phasing of construction, and establishing a schedule for construction.

For more information, email [email protected] or visit the website at: https://www.codot.gov/projects/co119-mobility.

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!