Long-term closure of westbound I-70 off-ramp to Brighton Boulevard starts Dec. 7

News Release

December 1, 2020 - Central/Eastern Colorado

Denver — As part of the Colorado Department of Transportation’s Central 70 Project, the westbound Interstate 70 off-ramp to Brighton Boulevard will close at 7 p.m., Dec. 7, through summer 2021. This closure will allow construction crews to rebuild this ramp to accommodate the future alignment of I-70. When this ramp reopens, it will carry motorists from the lowered section of I-70, marking a major Project milestone. See the detour map below and drive safely.

Future westbound I-70 off-ramp to Brighton Boulevard

Future westbound I-70 off-ramp to Brighton Boulevard

Current I-70 westbound off-ramp to Brighton Boulevard
Current I-70 westbound off-ramp to Brighton Boulevard

Traffic Impacts:

  • Full closure of westbound I-70 off-ramp to Brighton Boulevard  – begins 7 p.m., Monday, Dec. 7, through summer 2021

    • To detour around this closure, motorists will continue westbound on I-70 and exit onto Washington Street, turn left to get on eastbound I-70 and exit to Brighton Boulevard 

This work is weather-dependent and subject to change. 


To slow the spread of COVID-19, CDOT is reminding the public to wear a mask, avoid in-person interactions with people from outside their household, and wash their hands frequently. 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. 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 

In 2019, 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