Overnight full closure of I-70 at Colorado Boulevard

Travel Advisory

September 24, 2020 - Denver Metro Area - Required Oct. 1 to set bridge beams

DENVER — As part of the Colorado Department of Transportation’s Central 70 Project, motorists should expect overnight full closures of eastbound and westbound Interstate 70 at Colorado Boulevard starting 10 p.m., Thursday, Oct. 1, through 5 a.m., Friday, Oct. 2. If work is not completed in one night, a second closure will be required from 10 p.m., Friday, Oct. 2, to 5 a.m., Saturday, Oct. 3. The northbound Colorado Boulevard on-ramp to westbound I-70 will also be closed both nights but all other ramps will remain open. 

These closures will allow crews to set bridge beams for the new Colorado Boulevard bridge above I-70. 


  • Eastbound and westbound I-70 full closure at Colorado Boulevard – 10 p.m., Thursday, Oct. 1, to 5 a.m., Friday Oct. 2, and potentially 10 p.m., Friday, Oct. 2, to 5 a.m., Saturday, Oct. 3 

    • Westbound I-70: Motorists will head west on I-270, then go west on I-76, continue south onto I-25 and exit onto westbound I-70. 

    • Eastbound I-70: Motorists will head north on I-25, then go east on I-76, continue east on I-270 and exit onto eastbound I-70. 

  • Full closure of the northbound Colorado Boulevard on-ramp to westbound I-70 - 10 p.m., Thursday, Oct. 1, to 5 a.m., Friday Oct. 2, and potentially 10 p.m., Friday, Oct. 2, to 5 a.m., Saturday, Oct. 3 

    • Motorists should use 46th North Avenue as an alternate route to access the westbound I-70 on-ramp at Steele/Vasquez.

This work is weather dependent and subject to change. 

Detour map:

Closure of I-70 Map


Safe transportation infrastructure is essential for all of us, particularly for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, CDOT maintenance and construction crews  follow social distancing and other health safety measures to reduce COVID-19 exposure on the worksite. The Colorado Department of Public Health and Environment announced guidelines for construction activities. The public is urged to join the campaign for #DoingMyPartCO by practicing social distancing and wearing face masks. As traffic returns to normal levels, motorists must drive cautiously and heed the speed limit so all of us can return home safely. 

Whole System.Whole Safety 

Earlier this year, CDOT announced its Whole System — Whole Safety initiative to heighten safety awareness. This initiative takes a systematic, statewide approach to safety combining the benefits of CDOT’s programs that address driving behaviors, our built environment and the organization's operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.


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 56-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 central70.codot.gov.


Stay Informed

  • Text Alerts - Text Central70 to 77948

  • Email Updates - Sign up for Project updates at c70.codot.gov 

  • Website - c70.codot.gov - Traffic Impacts page 

  • Watch progress on the webcam