Project Milestone: Northbound I-25 Over Cimarron Street Girder Set Overnight Closures Expected Week of April 2

The northbound I-25 bridge work that spans the Cimarron/US 24 interchange and upper Fountain Creek will require overnight closures to set 18 girders. Each girder ranges in length from 72 to 132 feet and weighs up to 180,000 pounds. Setting the final bridge girders is a milestone for the project team.

Full Overnight Closures of Cimarron Street/US 24 and Northbound I-25 On- and Off- Ramps

From 9 p.m., Monday, April 3 to 5 a.m., Wednesday April 5, nightly.

Thursday, April 6 to Friday morning, April 7 is a contingency date.

  • A full overnight closure of Cimarron Street/US 24 (between Sierra Madre Street and I-25) and northbound I-25 on- and off-ramps at Cimarron Street/US 24 to set girders on northbound I-25 bridge.
  • Please follow detour signs.
    • Motorists traveling eastbound on US 24/Cimarron Street wishing to go north on I-25 will take southbound I-25 to Nevada Avenue and back to northbound I-25 or take 8th Street, head east on Colorado Avenue, south on Nevada Avenue back to Cimarron Street.
    • Motorists traveling westbound on US 24/Cimarron Street will go north on Nevada Avenue to Bijou Street or go west on Colorado Avenue to Limit Street, back to US 24.   
    • Motorists traveling northbound I-25 and wishing to exit at Cimarron Street/US 24 will be directed to take the Nevada Avenue/Tejon exit.
  • Detour map attached.

Nightly Lane Restrictions on Northbound and Southbound I-25

From 7 p.m., Monday, April 3 to 5 a.m., Friday, April 7, nightly

  • Overnight double right lane restrictions on northbound I-25 and single left lane restriction on southbound I-25 between Bijou Street and Tejon Street/Nevada Avenue for median work and to accommodate the bridge girder set.

  • Motorists should expect delays on northbound I-25 since there may be only one through lane open.

Drivers are Urged to Slow Down and Pay Attention

  • Speed reductions to 55 mph on I-25 between Colorado Avenue and south Nevada Avenue/Tejon Street and 30 mph speed reduction on US 24/Cimarron Street between 8th Street and I-25.
  • Pay close attention when driving near the I-25/Cimarron Project.
  • Slow down, observe speed limits, avoid distractions, and allow extra time for your commute.
  • Alternative route advised.

All Media Personnel: The I-25/Cimarron project is an active construction area. Access on the project site is restricted unless accompanied by a Colorado Department of Transportation or Kraemer representative. Your safety is important to us so please coordinate access requests in advance with Michelle Peulen. A safe area for interviews, b-roll, etc., and a project team member will be designated for escort and will coordinate the appropriate Personal Protective Equipment. We appreciate your cooperation. 

PROJECT INFORMATION: The $113 million I-25/Cimarron Interchange Design-Build Project involves rebuilding the I-25 interchange between Colorado Avenue on the north and South Nevada Avenue to the south, 8th Street on the west and the Cimarron Street over Fountain Creek bridge on the east. Improvements are intended to provide enhanced operations, correct existing safety and design deficiencies, and to serve the anticipated short- and long-term travel demands in this area. When complete, this will be a high-functioning interchange that safely handles more vehicles and enhances multi-modal travel for those using I-25, US 24/Cimarron Street and the trail system along Monument and Fountain creeks. Substantial completion is planned for fall 2017.

For updated project information, visit or call 719-302-6781. To be added to the database for receiving project updates by e-newsletter, send an email to: [email protected]

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