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Highway Closures and Impacts

The I-70 Floyd Hill Project Map showing areas of construction on I-70 between Idaho Springs (Exit 241) and County Road 65 (Exit 248). The map calls out key exits affected including Exit 241 Idaho Springs/Colorado Blvd., Exit 243 Hidden Valley/Central City, Exit 244 US 6, Exit 247 Homestead Road, and Exit 248 County Road 65

The I-70 Floyd Hill Project will improve eight miles of the I-70 mountain corridor, from west of Evergreen to eastern Idaho Springs. The Project will deliver a third westbound I-70 travel lane, which will function as an Express Lane, to improve the current two-lane bottleneck. Other major elements include constructing a missing two-mile section of the frontage road between Evergreen and Idaho Springs, building an eastbound I-70 extended on-ramp for slow-moving vehicles, rebuilding  bridges due to heavy usage and wear and tear, improving traffic flow and access at interchanges and intersections within the project limits, improving sight distance on roadway curves, improving the Clear Creek Greenway trail, and implementing environmental mitigation to create safer wildlife movements and improve air and water quality, stream conditions, and recreation.

Construction began in July 2023 and Westbound I-70 will be in its new alignment by the end of 2027 and eastbound I-70 will be in its new alignment by the end of 2028, with the entire Project complete in 2029.

Check out the October 2025 I-70 Floyd Hill Quarterly Newsletter for updates on progress, fall construction updates, activities to entertain during a traffic hold, and more.

I-70 Floyd Hill Stay Informed graphic. Text content is included after this graphic

Project Contact Information

For additional information about this Project:

Road Conditions: COtrip.org 
COtrip Planner App: bit.ly/COtripapp
Project Travel Alerts: bit.ly/COnewsalerts
Lane Closures: bit.ly/laneclosures

Gilpin County School District Capital Construction Project - Restarting March 24, 2025

Gilpin County School District will construct a sewer pipe from the school, 10595 Colorado Highway 119, to the Black Hawk Central City Sanitation District. The connection point is at the Black Hawk Fire Station, 7457 Black Hawk Blvd, Colorado Highway 119.

Colorado Highway 119 will be excavated in the northbound lane to construct the sewer pipe. Phase I construction began in the northbound lane of Colorado Highway 119 at the Black Hawk Fire Station and proceeded north to the Hidden Treasure parking area between August and November 2024.

Phase 2 construction will begin between the overflow parking area and the Hidden Treasure parking area starting on March 24, 2025.

One lane traffic will occur during construction, from March 24, 2025 through November 2025. During this period:

  • Expect delays of approximately 5 minutes.
  • One lane traffic will occur for approximately 3000 feet.
  • Automatic “red/green” traffic light controllers will be in use 24 hours a day/7 days a week.

For additional information, contact ESCO Construction Project Manager Kyle Griffin, kgriffin@escomailbox.com. Check the Gilpin School District website for up-to-date information on this project.

The on-site wastewater treatment plant groundwater discharge has been non-compliant for more than a decade. After a feasibility study, the Board of Education determined the best use of taxpayer revenue was to construct a sewer pipe and connect the school facility with the Black Hawk Central City Sanitation District.

The Huntsman Segment of the Peaks to Plains Trail is a 3-mile section of ADA-compliant trail connecting with the Gateway Segment completed in August 2021 and continuing west to Huntsman Gulch.

In addition to the 10-foot-wide concrete trail along Clear Creek, this Jefferson County Open Space project will include two new trailheads with parking and restroom facilities, seven bridges over Clear Creek and one bridge over US 6, an underpass beneath US 6, safer access to the creek for fishing and boating, and an enhanced riparian habitat. The Huntsman Segment broke ground in 2022 and a portion of the trail is expected to open later this year, with the entire 3-mile stretch from Tunnel 1 to Huntsman Gulch complete by the end of 2026.

Stay Informed:

You can use these resources from Jefferson County to stay informed on the project and planned closures:

Sign up for Jeffco "Notifyme" alerts:

  • Visit the Jeffco Notifyme page.
  • Add your email address to the top and click sign in.
  • You can opt to receive emails and / or text messages.
  • Scroll down to the third section titled "Alerts" and find P2P/US Hwy 6 - Trail Construction Closures.

You are also encouraged to check COtrip.org for real-time lane closures and traffic impacts associated with area projects.