U.S. Route 191 Indian Canyon Corridor

Construction throughout the U.S. 191 Indian Canyon Corridor began in April 2025 and will likely extend through the end of 2026. Stakeholder and community input guided the planned improvements for the area, which include:  

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  • North of Summit 

  • Approximately one mile of chain-up area widening 

  • An additional southbound passing lane between mileposts 273 and 275 

  • Intersection improvements at four locations: Right Fork Canyon, Skitzy Canyon, Sowers Canyon, and the US-191 and US-40 intersection in Duchesne 

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  • South of Summit 

  • Approximately nine miles of roadway and shoulder widening, including chain-up area widening and new pavement 

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  • Corridor wide 

  • Installing Intelligent Transportation System (ITS) conduit, fiber optic backbone, and ITS equipment at multiple locations 

  • Miscellaneous drainage and guardrail improvements 

 

Additionally, a new traffic signal at the intersection of US-40 (Main Street) and US-191 (100 West) in Duchesne will be installed in summer 2025. 

 

History 

Utah Department of Transportation (UDOT) completed multiple projects on the U.S. Route 191 Indian Canyon Corridor between US-40 and US-6 during 2023 and 2024. Improvements to the corridor will continue during 2025 and 2026 to ensure the road withstands the projected additional heavy vehicle traffic and to improve safety for all travelers on the route. The 45-mile corridor runs from Duchesne to Helper. 

Nearly $104 million has been allocated for improvements to the corridor. The Utah Legislature appropriated $88.5 million in their 2023 session, and UDOT has provided just over $15.49 million in additional state and federal funding for improvements to the US-191 Indian Canyon corridor. 

During the 2024 construction season, three projects were completed: 

  • A new southbound passing lane on US-191 between mileposts 280 to 282 

  • A pavement preservation project that placed fresh pavement, updated existing guardrails, and installed four cattleguards at multiple locations on US-191 from US-6 to US-40 

  • Improvements to the intersection of US-191 and US-6 

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Public Open House Meeting Materials

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Schedule

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live
Active Construction

Construction North of Summit

Crews have begun construction on the summit's north side between milepost 272 and milepost 275.   

Work hours are Monday - Friday from 7 a.m. to 7 p.m. 

You can expect:

  • Single lane alternating one-way traffic controlled by a pilot car operation during work hours

  • Approximately 30 minute delays in each direction

  • Speed reduced to 40 mph near work zones at all times

  • 11 foot wide lane restrictions at all times

ITS Fiber Installation

Crews are trenching and installing ITS fiber conduit on US-191 between  Duchesne and the Indian Canyon Summit.

Work hours: Monday - Friday from 7 am to 6 pm 

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Completed Projects

Southbound Passing Lane (MP 280-282) Project Design: Fall 2022 to Spring 2023

Project design on the southbound passing lane from MP 280-282 is complete.

Emergency Paving Operation

Rotomilling and paving operations were completed in September 2023.

Start Construction of Southbound Passing Lane (MP 280-282)

Crews replaced several culverts and completed earthwork during November and December 2023.

Construction of Southbound Passing Lane (MP 280-282)

Crews finished the construction of the southbound passing lane on August 9.

US-6 / US-191 Intersection Improvements
 
Crews installed a traffic signal and made improvements to the intersection of US-6 and US-191 between July and October 2024. 

Paving Corridor

Paving work planned for 2024 in the US-191 Indian Canyon corridor is complete.

 

Contact Information

To contact the public information team with questions or concerns:

Hotline: 435-264-3448

Email: us191indiancanyon@utah.gov

Stay Informed

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