US 85 & US 34 Interchange Improvements

About the Project:

The Colorado Department of Transportation and contracting partner Jalisco International, Inc. will begin improvements at the intersection of US Highway 85 and US Highway 34 in Greeley near Garden City. The anticipated completion date of the project is June 2025.

Safety improvements include installation of new guardrails and improving signage and striping at the intersection of US 85 and US 34, known as Spaghetti Junction. Better lane recognition increases safety and mobility while decreasing the occurrences of crashes due to vehicles departing from the roadway.

The shoulders will be widened to improve safety along this corridor.  Shoulder widening provides enhanced safety and mobility for motorists traveling on narrow two-lane highways.

Work this Week & Lane Closures
US 85 & US 34 Interchange

Project Facts

  • Construction Cost: $4 Million
  • Contractor: Jalisco International, Inc.
  • Timeline: October 2024 and anticipated through June 2025
  • Location: The intersection of US 85 and US 34, known as Spaghetti Junction 
    • Nearest Towns: Greeley, Garden City
    • Mile Point(s):
      • US 34: MP 111.9 to MP 113.8
      • US 85: MP 265.1 to MP 267.2
      • US 85 Business: MP 265.1 to MP 0.7
    • County: Weld

Project Benefits:

  • Install new guardrails at the intersection of US Highway 85 and US Highway 34 and improve signage and striping; this will reduce crash occurrences and improve lane recognition
  • Widening the shoulders along the corridor will boost safety and mobility for motorists on narrow two-lane highways, creating a safer travel experience

Work Schedule:

  • Daytime work hours are from 7 a.m. to 5 p.m., Monday through Friday
  • Periodic overnight work between the hours of 9 p.m. and 6 a.m. during overhead sign replacement

Traffic Impacts:

Motorists can expect the following impacts during the period of construction:

  • During construction, motorists can expect alternating lane closures
  • Speed limit is reduced to 45 MPH through the construction zone
  • A 12-foot width restriction will be in place when the lane closures are in effect
  • Construction trucks entering and exiting the work zone
  • Refer to COtrip.org for real-time travel conditions and road closures