US 6 New Castle Roundabout Project begins

Project Update

March 12, 2023 - Northwestern Colorado - Minimal impacts expected in the first phase of the project

Garfield County — The Colorado Department of Transportation and local contractor, Johnson Construction, will begin a highway improvement project on US Highway 6 in New Castle starting this week. The project will build a roundabout at the busy intersection of US 6 and Castle Valley Road/Spur Road. Work will take place from Mile Point 107 to 107.35. Traffic impacts are anticipated to begin this week, starting with shoulder closures for survey work. Crews will also begin installing erosion control and permanent traffic control devices. Lane closures and other traffic impacts are anticipated to begin later this month. Crews will be visible on site from 7 a.m. to 7 p.m. each day preparing the work zone. Traffic impacts will be limited during commuter hours.

The work consists of constructing a multilane roundabout at the intersection of US 6 and Castle Valley Road. A ¾ turn movement intersection at the Castle Valley Blvd and New Castle Plaza access. Crews will install rapid flashing beacons through the roundabout once completed, for pedestrian and cyclist safety. The work will also improve drainage, lighting, and utilities. The project is part of CDOT’s 10-year plan for improvements in Garfield County.

Once complete, the project will improve congestion and drivability for motorists on this busy stretch of US 6. The project is anticipated to be complete in the fall of 2024.

Traffic Impacts

  • Traffic impacts are anticipated to begin the week of March 11, starting with shoulder closures for survey work.
  • In order to accommodate commuter traffic, the project will perform work between the hours of 8:30 a.m. to 4 p.m. each day.
  • Crews will be visible on site from 7 a.m. to 7 p.m. each day preparing the work zone.
  • Weekend work may occur throughout the course of the project and will be communicated through the traffic impact updates each week.

Project Information

For additional information about this project:

  • Call the project information line at 970-984-8609
  • Email the project team at: [email protected]

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!

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