Work resumes for US 85 and US 34 interchange improvements in Weld County

Travel Advisory

March 5, 2025 - Northeastern Colorado - Crews to complete work on Spaghetti Junction from 2024

Weld County — The Colorado Department of Transportation and contracting partner Jalisco International, Inc. will resume work at the intersection of US Highway 85 and US Highway 34 in Greeley near Garden City mid-March.

The anticipated completion date of the project is June 2025.

During the 2024 construction season, crews located utilities and began preparing for overhead sign installation throughout the project limits.

Crews will complete the remaining safety improvements at the intersection of US 85 and US 34, known as Spaghetti Junction. Work includes improving signage and striping for better lane recognition. The shoulders will be widened, and new guardrails will be installed to enhance mobility and safety.

Drivers are urged to stay alert and exercise caution in work zones. Maintaining attentiveness ensures the safety of all road users, including construction crews and fellow motorists.

Traffic Impacts

  • Daytime work hours are Monday through Friday, 7 a.m. to 5 p.m.
  • During construction, motorists can expect single and alternating lane closures
  • Please obey posted speed limit signs
  • Construction vehicles entering and exiting the work zone

Project Contact Information

For additional information about this project:

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!