I-25/Cimarron Interchange Full Overnight Closures Project-Wide Starting Sunday, July 16

Motorists can expect overnight closures throughout the I-25 Cimarron Project the week of July 16.

Full Overnight Closure of Northbound I‐25 and Northbound I‐25 Ramps

Overnight closure of northbound I‐25 between Cimarron Street/US 24 and Bijou Street, including the northbound I‐25 on‐ramp roadwork.

  • Sunday, July 16, Wednesday, July 19,Thursday, July 20 and Friday, July 21, 9 p.m. to 5 a.m. nightly
  • The northbound I‐25 on‐ramp will close at 7 p.m. Friday, July 21 and will remain

closed until 9 a.m., Saturday, July 22 for paving operations.


  • Note, the northbound I‐25 closure on Wednesday night will extend from Tejon Street/Nevada Avenue to Bijou Street.

Full Overnight Closure of Southbound I‐25

Overnight closure of southbound I‐25 between Bijou Street and Tejon Street/Nevada Avenue, including the southbound I‐25 off‐ and on‐ramps at Cimarron Street/US 24, for roadwork.

  • Monday, July 17, 9 p.m. to 5 a.m.


Overnight closure of southbound I‐25 between Bijou Street and Cimarron Street/US 24, including the southbound I‐25 off‐ramp at Cimarron Street/US 24 for roadwork.

  • Tuesday, July 18, 9 p.m. to 5 a.m.

Full Overnight Closure of US 24/Cimarron Street

Overnight closure of eastbound and westbound US 24/Cimarron Street between 8th Street and I‐25 to prepare for traffic switch on Quadrant Intersection.

  • Monday, July 17, 9:30 p.m. to 5 a.m.

Overnight Lane Restrictions

Double right lane restrictions on southbound I‐25 between Bijou Street and US 24/Cimarron Street.

  • Thursday, July 20, 9 p.m. to 5 a.m.
  • There may be only one through lane open. Expect delays.

 Additional lane restrictions throughout the project.

 Construction schedules are subject to change based on weather/unforeseen circumstances and schedule changes.

Drivers are Urged to Slow Down and Pay Attention

  • Speed reduction to 55 mph on I‐25 between South Nevada Avenue/Tejon Street and Cimarron/US24 (northbound and southbound)

  • Speed reduction to 45 mph on I‐25 from Cimarron/US24 to Bijou Street (northbound and southbound)
  • Speed reduction to 30 mph on US 24/Cimarron Street between 8th Street and I‐25 (westbound and eastbound)

  • 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 December 2017.

For updated project information, visit https://www.codot.gov/projects/i25cimarronDB or call 719-302-6781. To be added to the database for receiving project updates by e-newsletter, send an email to: [email protected]

Updates are also available via Twitter @coloradodot and be sure to “Like” our Facebook page at www.facebook.com/coloradodot. 

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