Major Milestone Reached on US Highway 285 in Antonito: Project Moving on to Phase II

June 8, 2015 - Southwestern Colorado/CDOT Region 5 - Wide load restrictions in place until mid-October.

ANTONITO, CO – Crews from the Colorado Department of Transportation (CDOT) and contractor Concrete Works of Colorado have completed the first phase of the reconstruction project on US Highway 285 in the town of Antonito. Phase one completion includes a new retention pond on County Road G and improved storm water drainage systems along east 8th Avenue as well as the west side of Main Avenue/US Highway 285 between 2nd and 8th. Sidewalks and utilities also have been replaced in this area. The $7.8 million concrete reconstruction project is scheduled for completion in mid-October.

Starting today, Monday, June 8, the east side of US Highway 285 will be closed but two-lanes of traffic will remain open. Ten-foot width restrictions are still in place for the duration of the project.

PROJECT SCHEDULE & IMPACTS – Until the project’s completion in mid-October, work hours are expected to be from 7:00 a.m. to 7:00 p.m., Monday through Friday, with some weekend work possible.

Impacts are as follows for the week of June 8: 

  • US 285 will have brief, intermittent, one-lane closures, otherwise there will be two-lanes available for traffic for this week

  • The east side of US Highway 285 will be closed from 2nd to 8th Avenues

  • 10-foot width restrictions are in place until the end of the project in mid-October


The best way to stay up-to-date on project progress and impacts is to sign up for email updates. Please contact us at [email protected] to be included on the update list (title your email “Antonito Improvements”), or call the project hotline at 970-946-2834 and provide your email address. You can also visit CDOT’s website and see the lane closure reports at:

*This state-local partnership project will receive funding from RAMP, Responsible Acceleration of Maintenance and Partnerships towards the approximately $2.7 million in drainage improvements. RAMP is better coordinating project expenditures and available funding. Under the RAMP program, CDOT will fund multi-year and partnership projects based on year of expenditure, rather than saving for the full amount of a project before construction begins. For more information, including a list of RAMP project requests, please see our website:

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Construction work scheduled for Phase II – please see diagram below: