Nightly lane closures on northbound I-25 begin this week

April 7, 2015 - Denver Metro/CDOT Region 1 - Work needed for construction of new off-ramp bridge to US 6.

DENVER – Beginning Thursday, April 9, crews on the Colorado Department of Transportation’s (CDOT) US 6 Bridges Design Build Project will implement a schedule of a nightly right lane closure on northbound I-25 between Alameda Avenue and the US 6 interchange for construction of the new northbound I-25 off-ramp bridge to US 6. This work will occur each night, from 7 p.m. to 5 a.m., through mid-May.

The new off-ramp bridge—expected to open in mid-June—features a continuous acceleration/deceleration lane from the Santa Fe Drive on-ramp through the US 6 interchange, which will improve the traffic pattern in this area.  

“The work we’re starting this week is the beginning of a positive change for area drivers,” said Kevin Sullivan, CDOT Project Director. “When the new bridge opens in June, drivers should notice an improvement in traffic movement on northbound I-25 through the interchange.”

In preparation for this work, crews will implement a double right lane closuretonight on northbound I-25 between Broadway and the US 6 interchange for signage placement and striping work. In conjunction with this work, the Broadway on-ramp to northbound I-25 will also close overnight. All work will take place between the hours of 10 p.m. and 5 a.m.

In addition to these activities, crews will also complete the following worktonight:

  • Striping on westbound US 6, requiring various lane closures from 7 p.m. to 5:30 a.m.
  •     Safety equipment repairs on eastbound US 6, requiring a double right lane closure on eastbound US 6, in addition to an overnight closure of the eastbound US 6 on-ramp to southbound I-25. This work will begin at about 10 p.m. and last until 5 a.m.


  • Broadway traffic looking to access northbound I-25 will detour by taking Lincoln Street to Alameda Avenue to Santa Fe Drive to Cedar Avenue to the ramp to northbound I-25.
  • Eastbound US 6 to southbound I-25 traffic will detour by taking the eastbound US 6 off-ramp to Osage Street, then using the Osage Street on-ramp to southbound I-25.

PROJECT INFORMATION: The $98 million US 6 Bridges Design-Build Project will replace six obsolete bridges on US 6 between Knox Court and I-25, improve traffic movements in the I-25 and US 6 interchange and enhance driver safety by eliminating several traffic weave movements along US 6 between Federal Boulevard and I-25. Substantial project completion is planned for fall 2015. 

For updated project information, visit, call 720-881-5540 or email [email protected].

During construction, commuters might want to consider alternative modes of transportation to help ease the impacts of the project. This could include using the Regional Transportation District’s West Rail Line or bus service or taking advantage of carpool/vanpool options. For information on RTD services, call 303-299-6000. For carpool and vanpool information, call 303-458-7665.

To receive real-time updates about road conditions in your area, visit and click on the green cell phone icon in the upper right hand corner of the page. Information about weekly lane closures will be available at Live road conditions are available at, downloading the CDOT Mobile app or by calling 511 from anywhere in the state. Updates are also available via Twitter @coloradodot and be sure to “Like” our Facebook page at