US-189 | Wallsburg to Charleston Widening | Improved
US-189 | Wallsburg to Charleston Widening | Improved
Improving capacity and safety on US-189 from Wallsburg to Charleston with new travel lanes, a new traffic signal at SR-113, and a new entrance at Island Beach | Fall 2025 - Fall 2027
Project Overview
We are adding two more travel lanes on U.S. Highway 189 (US-189) between Wallsburg and Charleston to reduce congestion and increase safety for drivers. This is the last stretch of US-189 in this area with only one lane each way. When finished, US-189 will have two travel lanes in each direction from Provo to Heber City.
The main focus of the project is building the new travel lanes into the eastern hillside as a separate and elevated road, known as a split highway, similar to a section of US-189 in Provo Canyon. An example of what the split highway could look like when finished is shown below.
Other key features being built with this project include:
New traffic signal at the intersection of US-189 and SR-113
Improved access and parking at the Island Beach Day Use Area, including longer acceleration and deceleration lanes and a new parking lot
Better sight lines through the curved section along US-189
New wildlife fencing to protect drivers and animals
Construction started in October 2025 and is expected to wrap up in fall 2027.
Schedule*
Full closures of US-189 will take place in both directions to allow crews time to safely complete necessary controlled blasting and hillside excavation:
- Thursday, Dec. 18, between 10 and 10:35 a.m. - Full closure. Delays up to 50 minutes.
- Saturday, Dec. 20, through early Sunday, Dec. 21, 10 p.m. to 4 a.m. - Full closure. Six hours with no access.
- Sunday, Dec. 21, from 4 to 9 a.m. - one-way alternating traffic with flaggers is possible for cleanup and fence repair work.
*Schedules are subject to change due to weather conditions and material availability
Contact Information
To contact the public information team with questions or concerns:
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