Diagonal highway (ÃÛÌÇÖ±²¥ 119)

Construction of the has started and will be ongoing through 2027. Once complete, the corridor will have improved bike and bus facilities, and safer and more efficient intersections for all users. In the short term, The ÃÛÌÇÖ±²¥ Department of Transportation (CDOT) , the Regional Transportation District (RTD) and Boulder County will be working together to mitigate traffic congestion, delays and crashes and expand transportation options throughout this project. Your usual travel route may be impacted by construction, traffic delays and increased congestion throughout the project.

Immediate impacts:

  • Niwot Park-n-ride lot will close temporarily, but bus stops will remain active.
  • Bus stops at north and southbound CO 119 and bus stops at CO 52 (near IBM) will close beginning Sept. 29.
  • Additionally, there will be lane closures at various times near the following intersections: Jay Road, CO 52, 71st Street, Niwot Road, Oxford Road, 83rd Street, and Airport and Connector roads

Tips and Tricks for reducing the impact on your commute

Know before you go: Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road.

  • Learn about road conditions and travel information:
  • Sign up for project or travel alerts:
  • See scheduled construction lane closures:

Consider other routes: Download the , or use other travel apps like Transit, Google Maps or WAZE to plan your route.

Share a ride, start a vanpool or take a bus: It may not be as convenient as driving, but will help reduce the burden.Ìý

  • ÃÛÌÇÖ±²¥ Boulder's vanpool program is just $50/month, and free for Frontline Service Employees. Find out more on our ÃÛÌÇÖ±²¥ Boulder vanpool webpage
  • Explore carpool and public vanpool options at .Ìý

Shift your commute times (if possible): Explore the ÃÛÌÇÖ±²¥ Boulder Work From Home toolkit to see if there are ways you can work an alternate schedule or remotely, and what resources are available.

Full project details, contacts and more can be found on the .Ìý

If you have ÃÛÌÇÖ±²¥ specific feedback or questions, email .