News Flash

Summit County Government

Posted on: October 13, 2020

CO 91 to be Closed at Copper Mountain Oct. 29

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Please note that this version has been updated with a revised CO 91 closure date of October 29.

Pedestrian bridge placement will require an overnight highway closure; access to I-70 from Leadville will be detoured through Minturn

Contact: Jason Lederer, Open Space & Trails Department, 970-668-4213 

SUMMIT COUNTY — An overnight full closure of Colorado Highway 91 will take place Thursday, Oct. 29, near Copper Mountain while crews install a new pedestrian bridge over the intersection. Nighttime travelers seeking access to Interstate 70 from Leadville will be detoured through Minturn on U.S. Highway 24.

“The bridge will be installed overnight to minimize the impact to travelers on CO 91,” explained Jason Lederer, senior resource specialist for Summit County Open Space & Trails. “This is the first, and likely, only time we will be impacting motorists to build this trail. We appreciate everyone’s patience and understanding while we work on this exciting improvement to our trail system.” 

The closure will be from 7 p.m. to 4:30 a.m. Travelers will be able to access Copper Mountain from I-70 throughout the duration of the closure.

DETOUR INFORMATION: The detour will redirect traffic from Leadville through Minturn using U.S. 24 and I-70. The detour route adds 36 miles and approximately 30-40 minutes to travel time. See attached detour map.

The new bridge is a part of the larger Fremont Pass Recreational Pathway Project. This project is a collaboration between Summit and Lake counties, the U.S. Forest Service and the Climax Molybdenum Company. The new pathway will connect Summit and Lake counties’ pathway systems and will pass through National Forest and Climax-owned properties over Fremont Pass and along Colorado Highway 91 Top of the Rockies National Scenic Byway.

The project is being funded through the Federal Lands Access Program grant, Summit County, the State of Colorado and a local nonprofit organization of bicyclists. This three-mile section of trail runs along Tenmile Creek and is expected to open in early summer 2021.


For additional information about this project, call the project information line at 970-445-4456; email the team at to sign up for updates.

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CO 91 detour map with logos

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