Projects

I-25 North Express Lanes: Berthoud to Fort Collins

Northbound and Southbound I-25 Full Freeway Closures at CO 402

Work on the I-25 North Express Lanes Project will require full closures of northbound and southbound I-25 at CO 402 on Sunday, 9 p.m. to 5 a.m., to perform a deck pour on the new CO 402 bridge over I-25. Northbound traffic will detour onto the CO 402 off-ramp (Exit 255), continue through the roundabout on the SE Frontage Rd and proceed onto the current northbound I-25 on-ramp at River Ranch Parkway. Southbound I-25 traffic will detour onto the CO 402 off-ramp (Exit 255) and turn south on Co Rd 7 to head east on E Co Rd 48 to the southbound I-25 on-ramp.

The closure will begin at 9 p.m. and continue until the deck pour is complete, at which time the full closure will have single lane closures until 5 a.m.

Detour Map

 I-25-Co 402 Interchange Closure 

By the end of 2019, the I-25/CO 402 interchange will undergo substantial changes, resulting in a new-and-improved interchange. To support reconstruction, crews have closed both directions of CO 402 under I-25.

The closure extends from the southbound I-25 on- and off-ramps to the new Southeast Frontage Road. Once completed in October, the new configuration at CO 402 will be fully operational, and future impacts at this interchange will be minimal.  

Stay updated on all project information by joining our mailing list or contacting us, or by calling the project hotline, 720-593-1996.


Work this Week

Lane closures from Sunday, Aug. 18 through Saturday, Aug. 24:  

  •  Sunday – Friday: Nighttime southbound I-25 single lane closures between Crossroads Blvd and CO 392.
  • Monday – Saturday: Daytime flagger assistance at Prospect Road and I-25.
  • Monday – Saturday: Daytime flagger assistance on CO 402 east and west of I-25.
  • Wednesday – Thursday: Nighttime full closure of northbound and southbound I-25 at CO 402. 

    Gov. John Hickenlooper broke ground on the I-25 North Express Lanes project Monday, Sept. 10, 2018. He was joined by Sen. Michael Bennet and many local, state and federal officials who helped make this project a reality.

    Project Facts

    • Cost: $300+ million
      The U.S. Department of Transportation (USDOT) has awarded CDOT and local partners a TIGER grant to help it fund this expansion of I-25 North.
    • Contractor: Kraemer and IHC Construction Companies, LLC
    • Timeline:
      • First Notice to Proceed: Early 2018
      • Second Notice to Proceed: Summer 2018
      • Construction: Fall 2018 through fall 2019
      • Construction Complete/Toll Commencement: Early 2022

    In mid-October, crews began construction near CO 402. There will be three main phases of work in this area that will continue through mid-2020:

    • Phase 1 will allow crews to build temporary infrastructure on the southbound side of I-25.

    • Phase 2 will push northbound traffic onto the southbound side to provide access to build infrastructure on the northbound side.

    • Phase 3 will switch northbound and southbound traffic onto the northbound side to allow crews to build the required infrastructure on the southbound side.

    What to Expect

    • While most of the work will be performed outside the roadway, some nighttime lane closures will be required. CDOT will send advance notification of these closures.
    • Current work between Crossroads Boulevard and Kechter Road, near CO 392, will continue during construction at CO 402.

    Coming Up....

    • Once the project is complete, CO 402 will run over I-25.

    Key Project Features

    • Increase capacity by adding an Express Lane in both directions, replacing four aging bridges and widening four additional bridges.
    • Improve multi-modal access to regional transit to promote mode shift.
    • Improve bus service performance and reduce each total trip time by 15 minutes by adding new bus slip ramps from I-25 to the new Park-n-Ride at Kendall Parkway.
    • Create new pedestrian, bicycle access under I-25 at Kendall Parkway.
    • Connect the Cache la Poudre River Regional Trail under I-25 and network to 100 miles of total trails. It will also serve as a wildlife corridor.

    This project brings critically important benefits to the economy, the environment and quality of life by leveraging resources from partners across northern Colorado. Benefits include:

    • safety improvements;
    • reducing accidents and fatalities;
    • reducing travel time and increasing trip reliability;
    • reducing emissions;
    • improving freight efficiency;
    • increasing travel choices;
    • reconstructing aging and obsolete infrastructure;
    • improving bike/pedestrian and transit connectivity; and
    • employing congestion management and safety technology to improve overall conditions.

    Local partners and elected officials have been heavily involved in the planning, implementation and funding of this critically important project.

    In 2013, an I-25 Coalition was formed to help manage and accelerate improvements to the corridor. Six northern Colorado communities, Weld and Larimer counties, CDOT, chambers of commerce and private businesses have all been collaborating to help bring these improvements to fruition.

    The I-25 Coalition has grown steadily and is currently made up of 90 representatives from Adams, Larimer and Weld counties, Berthoud, Broomfield, Dacono, Erie, Firestone, Fort Collins, Frederick, Johnstown, Loveland, Mead, Northglenn, Timnath, Thornton and Windsor, as well as CDOT, businesses and other interested agencies.

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