Traffic & Transit
Overnight Lane Closures on I-25: CDOT
Express lane construction will close lanes and exits between 144th 136th Avenues this week.

From Colorado Department of Transportation: As part of the North I-25 Express Lanes: 120th Avenue to Northwest Parkway/E-470 project, the Colorado Department of Transportation and contractor partner, Hamon Infrastructure, will require overnight lane and ramp closures this week along Interstate 25 between 120th Avenue and 144th Avenue to install safety critical barrier.
Motorists should plan to add an additional 10 minutes to their travel time to detour around the closures. All work is weather permitting and subject to change.
TRAFFIC IMPACTS AND DETOUR
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- Monday, Mar. 12, 2018 – 8 p.m. to 5:30 a.m. – Single right lane closure on southbound I-25 between 144th Avenue and 136th Avenue and full closure of the southbound I-25 off-ramp to 136th Avenue. To detour around this closure, motorists should exit southbound I-25 at 144th Avenue, travel west on 144th Avenue to Huron Street, and then travel south on Huron Street to reach 136th Avenue. Motorists can also expect intermittent lane closures on northbound I-25 between Community Center Drive and CO 7 between 10 p.m. and 5:30 a.m.
- Tuesday, Mar. 13, 2018 – 8 p.m. to 5:30 a.m. – Full closure of the 144th Avenue on-ramp to southbound I-25. To detour around this closure, motorists should travel west on 144th Avenue, south on Orchard Parkway, then travel east on 136th Avenue to enter southbound I-25.
- Wednesday, Mar. 14, 2018 – 8 p.m. to 5:30 a.m. - 1,500 foot single right lane closure on southbound I-25 at the 136th Avenue on-ramp and full closure of the 136thAvenue on-ramp to southbound I-25. To detour around this closure, motorists should travel west on 136th Avenue to Huron Street, proceed south on Huron Street to 120thAvenue, then travel east on 120th Avenue to reach southbound I-25. Motorists can also expect intermittent lane closures on northbound I-25 between Community Center Drive and CO 7 between 10 p.m. and 5:30 a.m.
- Thursday, Mar. 15, 2018 – 8 p.m. to 5:30 a.m. - Intermittent lane closures on southbound I-25 between Community Center Drive and CO 7 between 10 p.m. and 5:30 a.m.
PROJECT BACKGROUND
The North I-25 Express Lanes project from 120th Avenue to Northwest Parkway/E-470 is a $97.5 million project that will improve safety, capacity and user choice to a rapidly developing region.
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This project will continue the previous Express Lanes project, which was completed on I-25 between US 36 and 120th Avenue, and will extend the Express Lanes to Northwest Parkway/E-470. The project will add capacity on I-25 up to Northwest Parkway/E-470 and construct a new asphalt surface from 120th Avenue to Colorado Highway 7. Motorists can expect the roadway to be in its final alignment by early 2019.
Construction will take place Monday through Friday, 7 a.m. to 4:30 p.m. with periodic night and weekend work. Motorists can expect various lane closures on both NB and SB I-25 as well as periodic ramp closures. Traffic will be maintained during peak travel times throughout construction.
About Express Lanes: Express Lanes increase roadway capacity and help to manage congestion on the highways. The use of toll pricing during peak travel times reduces delays, manages congestion and maintains reliable travel times. Express Lanes currently are open between 120th Avenue and US 36 on North I-25 and, US 36 from Denver to Boulder and on the I-70 Mountain Express Lane. For more information, visit www.codot.gov/programs/expresslanes. To get an ExpressToll account and pass, visit www.expresstoll.com.
Ways to Commute: Smart Commute Metro North is offering some incentives to help you commute smarter! For more information or to sign up, check out www.smartcommutemetronorth.org/idrivei25.
PROJECT INFORMATION
For additional information about this project, call the information line at 720-737-5118, email the team at i25northconstruction@gmail.com, or visit the project website at www.codot.gov/projects/north-i-25/NorthI-25/120thNorth. For information on travel conditions, visit www.COTrip.org, sign up for GovDelivery, or call 511. Updates are also available via Twitter @coloradodot and CDOT’s Facebook page at Facebook.com/Coloradodot.
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