Construction timeline: May 2025 – December 2026
The upper section of Millcreek Canyon Road remains closed for the Upper Millcreek Canyon Road Improvements Project, a multi-year effort focused on improving safety, recreation access, and long-term canyon infrastructure.
The project is designed to improve user safety, enhance access to recreation areas, and address water quality issues caused by erosion and outdated drainage systems.
Planned improvements include widening portions of the road to up to 24 feet, adding a bike lane, and constructing new parking areas to reduce roadside congestion.
What to expect during construction
For the latest construction information, view Salt Lake County’s most recent update or browse past updates below.
The following trail closure map image shows which trails will remain open and how you can connect to each of them.
View our interactive map below for a visualization of the upcoming closures.
This project is part of the Upper Millcreek Canyon Road Improvement Project, funded through the Federal Lands Access Program (FLAP). Construction is led by the Federal Highway Administration Central Federal Lands (FHWA-CFLHD), in cooperation with Salt Lake County, Millcreek City, and the U.S. Forest Service (Uinta-Wasatch-Cache National Forest).
The Federal Highway Administration Central Federal Lands (FHWA-CFLHD), as the lead agency, conducted an Environmental Assessment to evaluate the potential impacts of the Upper Millcreek Canyon Road Improvement Project. Following this assessment, FHWA-CFLHD issued a Finding of No Significant Impact (FONSI)—concluding that the project will not have a significant effect on the human or natural environment.
This determination was made in compliance with the National Environmental Policy Act (NEPA) and incorporates findings from the Environmental Assessment and Draft Section 4(f) Evaluation. You can view the full documentation and project details on the FHWA project page.
🚧 Note: All details in this post refer to Phase 1 of the Millcreek Canyon FLAP project, which focuses on rebuilding the upper canyon road.
A Phase 2 proposal to improve the lower portion of the road (from the Fee Booth to the Winter Gate) was submitted by Salt Lake County to the U.S. Department of Transportation in November 2024. However, as of May 9, the application was not selected for funding. The County may choose to reapply or pursue other funding options to move Phase 2 forward.
The Millcreek Canyon Road Closure has been in the planning phase for years now, with construction set to begin shortly.
Here’s an overview of the construction timeline until now.
To find out what this construction means for Dog Owners, Mountain Bikers, and everyone else who loves this canyon, make sure to subscribe to our newsletter as we will be sending updates as soon as we hear of them!
