I-70 in Denver | I-25 to Chambers Road

Lane closures on eastbound and westbound I-70 between Washington and Steele streets, the Brighton Boulevard on-ramp to eastbound I-70 and the Steele Street on-ramp to westbound I-70 overnight July 28 through July 31, 2025 from 8 p.m. to 5 a.m. These lane closures will allow crews to test the Fire Life Safety System and the Deluge Fire Suppression System inside the tunnel on I-70 between Clayton and Columbine streets. During this testing process, drivers in the area may see changes to the lane indicator lights, hear the public announcement system and may see the jet fans turn on.

I-70 in Denver Area Overview

Now that the Central 70 project is complete, the next phase of this project will include maintenance and operations of the Interstate 70 corridor in Denver.

The location of this area is on I-70 eastbound and westbound from Mile Points 274 to 283.50 from east of I-25 to Chambers Road in Denver and Adams counties.

Travel Impacts August 2025 - Updated Aug. 9, 2025

There will be on-going maintenance work on I-70 between Brighton Boulevard and Chambers Road.

Expect ongoing regular roadway maintenance, including:

Pavement maintenance
Guardrail repair
Graffiti removal
Drain inspection and cleaning
Erosion Control
Mowing
Trash pick-up
Sweeping

Please be cautious when driving through this area. Go to COtrip.org for the latest information on lane closures and road conditions.

About the Contractor

For the next 30 years, contractor Kiewit Meridiam Partners is responsible for operations and maintenance of I-70, and will be completing the final turn-over requirements. Project priorities includes general maintenance like snow removal, lane striping, pot-hole repair, signage repair.

Project Cost: $400 million
Work Schedule: As needed
Traffic Impacts: Intermittent lane restrictions
Timeline: February 2023 to March 2052

Completed Central 70 Project on I-70 in Denver

Stay up to date on the latest information with cotrip.org

Lane Closures for I-70 in Denver