CDOT to hold a public open house on proposed improvements for I-25 from US 36 to 104th Avenue

Adams County — The Colorado Department of Transportation will host an open house to discuss proposed transportation improvements for Interstate 25 between the US 36/I-270 interchange and 104th Avenue. This stretch of highway has seen a steady increase in crashes since 2012. CDOT is looking at ways to improve safety and traffic operations.

When & where:

Wednesday, Oct. 22
5:30 to 7:30 p.m.
Thornton Community Center
2211 Eppinger Blvd.
Thornton, CO 80229

A light meal will be served. Children's activities will be available.

What:
Community members are welcome to come and go at their convenience any time during the two-hour open house which will feature display boards presenting a proposed action for various transportation improvements. The public can share ideas about the project, including suggestions to improve transit in the corridor. The public can engage with the project team at the open house, send an email, call the hotline with comments, or fill out a comment form during the meeting or online.

All materials presented at the open house, including an online survey, will be available on the project website following the public meeting.

Project information resources:

• Visit the I-25 (US 36 to 104th Avenue) Safety & Operations Improvements Study web page
• Call 720-378-8859 and leave a voicemail for the project team
• Email questions or send comments to [email protected]

About the Project

This project is in the study and early design phase to evaluate improvements to traffic operations and safety on a five-mile segment of I-25 from US 36/I-270 to the south and 104th Avenue to the north. This segment has experienced a growing number of crashes since 2012. Most crashes are rear-end crashes that are typically associated with congestion. Proposed safety improvements would ease traffic flow in a highly traveled area by:

• Widening shoulders and the Express Lane buffer
• Adding a northbound climbing lane for trucks from I-270 to 104th Avenue
• Adding auxiliary lanes to improve traffic flow between interchanges from 84th Avenue to Thornton Parkway
• Adding a fourth southbound general-purpose lane between 84th and 104th avenues
• Replacing the 88th Avenue Bridge with a new bridge that would have the space needed to accommodate multimodal features
• Realigning the Niver Creek Trail and replacing the aging pedestrian and bikeway underpass at the Thornton Park-n-Ride
• Removing the I-25 bus slip ramps at the Thornton Park-n-Ride

The study and design phase will last through late fall 2026.