Postponed: Full closure of westbound I-70 from I-270 to Colorado Boulevard

Travel Advisory

July 29, 2021 - Central/Eastern Colorado

DENVER — As part of the Colorado Department of Transportation’s Central 70 Project, the westbound Interstate 70 full closure from I-270 to Colorado Boulevard, originally scheduled for this weekend, is postponed due to forecasted thunderstorms and rain throughout the weekend. 

This closure will now take place starting 10 p.m., Friday, Aug. 6, to 5 a.m., Aug. 9, so crews can place final pavement on westbound I-70. 

This marks the last one-directional full weekend closure in the center segment between Colorado Boulevard and Quebec Street. 

Closing a stretch of I-70 to complete all of the paving over a weekend eliminates months of nightly lane closures. It also ensures the road will be smoother and safer, as there will be less seams in the asphalt.

Come Monday, Aug. 9, traffic will be in its final alignment in the center segment with some additional punch list items that crews will work to finish throughout the summer. By fall, crews will have completed eight miles of the 10-mile Project.    

Traffic Impacts

  • Westbound I-70 from I-270 to Colorado Boulevard will be closed from 10 p.m., Friday, Aug. 6, through 5 a.m., Monday, Aug. 9.

This work is weather and site-condition dependent and is subject to change. Follow the Project on Facebook at for the latest information.

Detour map: 

I-70 WB Map

About CDOT

CDOT’s Whole System-Whole Safety program has one simple mission — to get everyone home safely — and our approximately 3,000 employees work tirelessly to reduce the rate and severity of crashes and improve the safety for all modes of transportation. The department manages more than 23,000 lane miles of highway, more than 3,000 bridges and 35 mountain passes. CDOT also manages grant partnerships with a range of agencies, including metropolitan planning organizations, local governments and airports. It also operates Bustang, the state-owned interregional express bus service. Gov. Jared Polis has charged CDOT to further build on the state’s intermodal mobility options. 

About the Central 70 Project

The Central 70 Project will reconstruct a 10-mile stretch of I-70, add one new Express Lane in each direction, remove the aging 57-year-old viaduct and lower the interstate between Brighton and Colorado boulevards. More information on the Project, including a list of the Project’s community commitments, are available at

Stay Informed

  • Text Alerts: Text Central70 to 77948

  • Email Updates: Sign up for Project updates at 

  • Website: - Traffic Impacts page 

  • Watch progress on the project webcam