Projects

Traffic Impacts

All work is weather dependent and will be rescheduled if operations cannot be completed.

Full Closures of I-25 between Colorado Highway 402 and US 34 To Set Girders

The I-25 North Express Lanes Johnstown to Fort Collins Project will require full closures of I-25 between Colorado Highway 402 and US 34 to set girders for the new Larimer County Road 20 bridge over I-25. The full I-25 closure will be in effect 9 p.m. Wednesday June 3 until 5 a.m. Thursday June 4.

  • Southbound traffic will exit I-25 at US 34, head west to Colorado Highway 287, proceed south on CO 287 to CO 402 and east on CO 402 to the southbound I-25 on-ramp.
  • Northbound traffic will exit I-25 at CO 402, head east to County Road 13, proceed north on County Rd 13 to US 34 and west on US 34 to the northbound I-25 on-ramp. 
  • View the detour map.

Work this Week
May 31-June 6

Lane closures for the week of May 31 - June 6:

  • Monday – Saturday: Nighttime northbound and southbound I-25 single lane closures project-wide.
  • Monday – Saturday: Daytime flagging operations project-wide.
  • Wednesday: Nighttime full closure of northbound and southbound I-25 between CO 402 and US 34.

Long-term closures

  • Sat, Mar. 7 - Aug. 2020: FULL CLOSURE of County Road 20 Bridge over I-25 for bridge reconstruction and widening (Starting at 6 a.m. Saturday)
  • Mon, Mar. 9 - Aug. 2020:  Southeast Frontage Road closed between Lucy Lane and the Great Western Railroad tracks for frontage road bridge and frontage road reconstruction

Extended Closures

Extended Closure of Larimer County Road 20 Bridge over I-25

The I-25 North Express Lanes Johnstown to Fort Collins Project has closed Larimer County Road 20 Bridge over I-25 until August to reconstruct and widen the bridge.

Extended closure of the Southeast Frontage Road between
Lucy Lane and the Great Western Railroad Crossing

The Southeast Frontage Road between Lucy Lane and the Great Western Railroad Crossing will be closed until August to reconstruct the Southeast Frontage Road and the Frontage Road Bridge over the Big Thompson River.

I-25 North Frontage Road near Berthoud now permanently CLOSED

The I-25 frontage road between Colorado Highway 56/Weld County Road 44 to WCR 46 is now permanently closed. This closure is the first phase of a larger frontage road closure plan. All properties and utility companies will have access maintained to their property.

The frontage road between Larimer County Road 14 and Colorado Highway 402 remains in place due to the number of business accesses.

Updated Jan. 6 Alternative Routes Map

Click the button below to view CDOT’s I-25 Frontage Road Vision.


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