I-70 Mountain Corridor: Golden to the Utah Border
Summer to Fall 2025 Construction Maps
These maps highlight active construction projects along or near the I-70 Mountain Corridor, from Golden to the Utah border, during summer 2025.
The I-70 Floyd Hill and I-70 West Vail Pass Auxiliary Lane projects will be particularly active this summer, so we encourage signing up for the text alert services described with each project below.
For real-time information on statewide lane closures and traffic impacts, visit COtrip.org or use the COtrip Planner app.
West Side of the Eisenhower Tunnel Projects
Location: East of Silverthorne (Exit 205) to Eisenhower-Johnson Memorial Tunnel
Schedule: September 2025 to Fall 2026
Traffic Impacts: Monday to Thursday daytime single lane and shoulder closures in both directions
Webpage: Coming soon.
Location: Vail Pass (Exit 190)
Schedule: May 2023 to Summer 2025
Traffic Impacts: Rest area and bathrooms are closed.
Webpage: Vail Pass Rest Area Reconstruction
Location: I-70 from the East Vail Exit to the Vail Pass Rest Area
Schedule: August 2021 to December 2026
Traffic Impacts: Intermittent weekday 20-minute traffic and recreation path holds for rock scaling and avalanche fence installation. Expect single lane closures during both day and night.
Text Alerts Signup: Text vailpass (one word) to 21000
Webpage: I-70 West Vail Pass Auxiliary Lanes
Location: I-70 from Eagle-Vail to West Vail
Schedule: Early May 2024 through May 2025
Traffic Impacts: No impacts - project completed
Webpage: I-70 Variable Speed Limit Signs in Dowd Canyon
Location: I-70 through Glenwood Canyon
Schedule: May 2025 through August 2026
Traffic Impacts: Daytime weekday single lane closures in both directions.
Webpage: Glenwood Canyon Bridge Joint Improvement
East Side of the Eisenhower Tunnel Projects
Location: I-70 from Chief Hosa to Morrison
Schedule: July 2024 to Fall 2025
Traffic Impacts: Westbound lane shift with reduced lane and shoulder widths on westbound side. Single and double lane closures during the night. Resurfacing work begins in mid-July.
Webpage: I-70 Resurfacing from Chief Hosa to Colfax
Location: Clear Creek Canyon (US 6) from CO 119 to CO 58/CO 93
Schedule: 2024 to late 2026
Traffic Impacts: Daytime single lane closures and occasional overnight full canyon closures for construction of the Huntsman Gulch segment of the Peaks to Plains Trail.
Webpage: Peaks to Plains Trail (Jefferson County Website)
Location: I-70 between Idaho Springs and Empire
Schedule: Open as toll lanes during peak period travel times, mostly on weekends and holidays.
Traffic Impacts: Enter and exit the Express Lanes through the dashed lines only, do not drive in the Express Lanes when they are closed and do not travel in the Express Lanes with an oversized vehicle. When these lanes are closed, they are used as an emergency shoulder for disabled and emergency vehicles.
Text Alerts Signup: Text xpresslanes (one word) to 21000
Webpage: I-70 Express Lanes: Idaho Springs to Empire
Location: I-70 from west of Evergreen to eastern Idaho Springs
Schedule: Summer 2023 to late 2029
Traffic Impacts: I-70 lane and ramp closures, and flaggers and alternating traffic on US 40. Expect 20-minute I-70 traffic holds for rock blasting through the end of 2026. Watch for new traffic patterns, narrowed lanes and shoulders and reduced speed limits. Clear Creek Greenway Trail closure between US 6 and Hidden Valley.
Text Alerts Signup: Text floydhill to 21000
Webpage: I-70 Floyd Hill Project
NEPA Resources
Find the Programmatic Environmental Impact Statement, Record of Decision, and other related documents
Projects &
Studies
Find information about current CDOT studies and projects in the I-70 corridor
Context Sensitive Solutions
For its I-70 Mountain Corridor program, CDOT follows a CSS process
