I-76 Corridor Improvements Between Iliff & Crook Interchanges

About the Project

The Colorado Department of Transportation and contract partner Castle Rock Construction will begin a winter shutdown of construction activities for the I-76 Corridor Improvements Project on Dec. 20. The project began construction in July and will improve an 18-mile stretch of I-76 from the Crook interchange (Mile Point 150) to two miles west of the Iliff interchange (MP 132).

The initial phase of the project began at the Crook and Proctor interchange and involved constructing several crossover detours to facilitate head-to-head traffic. This configuration will ensure crew safety and minimize disruptions to traffic flow during construction. Additional work included road resurfacing, bridge rehabilitation, and upgrading guardrails and signage along this critical transportation route. These improvements will ensure a smoother, safer drive for motorists and extend the life of the highway.

Construction activities will resume spring of 2025. The project team will complete the remaining crossover construction and then move on to the westbound concrete panel replacement, mainline paving, diamond grinding, and sawing and sealing to mitigate further road deterioration.

Project Benefits

  • Concrete panels that are cracked, broken and not seated properly will be replaced to mitigate further deterioration of the road
  • Diamond grinding the roadway will take place to improve the smoothness and surface texture of the concrete pavement. This method involves the use of diamond saw blades to grind the surface of the pavement, removing irregularities, bumps, and imperfections resulting in a much smoother ride for vehicles.
  • Installation of new signs and final striping will improve safety, efficiency, and communication for motorists
  • Guardrails will be upgraded to prevent vehicles from leaving the roadway, reducing the severity of crashes and minimizing the risk of injuries and fatalities

Work Schedule

Construction activities will resume spring of 2025.

  • The work schedule will be Monday through Friday from 7 a.m. to 5 p.m.
  • The project team will complete the remaining crossover construction and then move on to the westbound concrete panel replacement, mainline paving, diamond grinding, and sawing and sealing to mitigate further road deterioration

Traffic Impacts

  • During the winter shutdown, motorists will not encounter any construction-related traffic control or delays
  • When work resumes in the spring, motorists can expect eastbound and westbound single-lane closures on I-76 from MP 142 to 150 and from MP 130 to 132, near the Iliff interchange. Traffic will then transition to a 24/7 head-to-head configuration
  • A 12-foot width restriction will be in place
  • There will be a speed limit of 55 MPH
  • The work schedule will be Monday through Friday from 7 a.m. to 5 p.m.
  • For current road conditions, visit COtrip.org.

Work this Week & Lane Closures for I-76 Interchanges

Project Facts

  • Construction Cost: $20 Million
  • Contractor: Castle Rock Construction
  • Timeline: July 2024 to spring 2025
  • Location: I-76 between Iliff and Crook Interchanges
    • Nearest Town/City: Iliff to Crook
    • Mile Point(s): MP 132 to 150
    • County: Logan
I-76 work zone from the Crook interchange (MP150) to two miles west of the Iliff interchange (MP 132)
I-76 work zone from the Crook interchange (MP150) to two miles west of the Iliff interchange (MP 132)