Nightly lane closures set to begin on southbound I-25

June 25, 2015 - Denver Metro/CDOT Region 1 - Work will facilitate eventual reopening of southbound I-25 off-ramp to eastbound 6th Avenue.

DENVER – Beginning Thursday, June 25, weather permitting, crews on the Colorado Department of Transportation’s (CDOT) US 6 Bridges Design Build Project will implement a series of nightly lane closures on southbound I-25 between Auraria Parkway and the US 6 bridge over I-25 for paving operations. This work will occur from 10 p.m. to 5 a.m. for the next few weeks and require a double right lane closure on southbound I-25 each night.

Additionally, the southbound I-25 off-ramp to 8th Avenue will close each night in conjunction with this work. As 8th Avenue is the signed detour route for the extended closure of the southbound I-25 off-ramp to eastbound 6th Avenue, drivers can instead detour taking westbound US 6 to Federal Boulevard, Federal Boulevard to 8th Avenue, and 8th Avenue east toward downtown Denver. 

This work is needed to accommodate the completion of the new southbound I-25 off-ramp to eastbound 6th Avenue, which is scheduled to reopen in the next month.


Southbound I-25 to 8th Avenue: Motorists should take westbound US 6 to Federal Boulevard, Federal Boulevard to 8th Avenue, and 8th Avenue east toward downtown Denver. 

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. Kraemer North America, the primary contractor, is on schedule to complete the project by October 2015 – 20 months after initial construction impacts and nearly one year ahead of CDOT’s originally estimated timeframe for the project. 

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