CDOT I-270 Environmental Study

Location, Date & Time
Adams County High School
7200 Quebec Pkwy., Commerce City, CO 80022
  • Thu, Jan 8 2026, 5 - 8pm
  • Sat, Jan 10 2026, 9am - 12pm
  • Tue, Jan 13 2026, 5 - 8pm
Meeting Details

The Colorado Department of Transportation, in coordination with the Federal Highway Administration, is inviting the public to review and comment on the Draft Environmental Impact Statement (DEIS) for improvements to Interstate 270, including a preferred alternative that would add one Express Lane in each direction. There will be three in-person public hearings where the public can learn more about the DEIS and provide comments in person or via a comment form after the hearing. There will also be two informational webinars that the public can attend to learn more about the DEIS from project team members. Each hearing will include bilingual display boards, a presentation and opportunities to ask questions and provide comments.

The DEIS is available for public review and comment through Jan. 20, 2026. Community input will help inform the final environmental decision and project direction.

View the DEIS, Summaries and Comment Forms

Informational webinars