SR-12 Corridor Update March 5, 2018


Two new projects along the SR-12 corridor are scheduled to being construction in March 2018.

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Red Canyon Tunnels Rehabilitation

Beginning March 5, the Red Canyon Tunnel Rehabilitation project will begin as construction crews move in materials and equipment to repair the tunnel structures between mileposts 4 – 5. In order to prepare for the rehabilitation work, a one-lane bypass road will be constructed on the south side of SR-12.

In lieu of flaggers, a temporary mobile signal at each end of the bypass road will control the flow of traffic during work hours, 7am – 9pm. The roadway through the tunnels will be open at night and on weekends as no construction is scheduled to occur.

During construction hours, bicycles and vehicle traffic will share the bypass road. Drivers and bicyclists are urged to be courteous and aware of each other.

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MP 0 – MP 30 Safety Improvements

This project will operate concurrent to the Tunnel Rehabilitation project. Construction crews will be installing signs along SR-12 from the US-89 junction to Henrieville. Through this project area, crews and equipment will be utilizing the shoulders of the highway to install signs. Between mileposts 17 – 23 there will be frequent lane closures as crews install new guardrails. Mobile signals will direct traffic through these one-lane construction zones during work hours, 7am – 9pm. At night and on weekends, all lanes of SR-12 will be open as no construction activities are scheduled at this time.


UDOT would like to remind the public to be aware of work crews, lane shifts/closures, other drivers and pedestrians while traveling through all construction zones. Please slow down and obey all traffic signs. Zero Fatalities and zero injuries is a goal we can all live with.

Hours of operation

Daytime hours (7 a.m. to 9 p.m.)

At least one lane of traffic open through construction segments.

Night time hours (9 p.m. to 6 a.m.)

Two lanes of traffic open.

What to expect during construction

Lane closures
Traffic delays

Maintaining traffic flow and minimizing construction impacts during peak travel times is a priority.

Project Overview

​SR-12 is designated a Scenic Byway and an All-American Road. It is a gateway connection to many parks and recreational areas that include: Bryce Canyon National Park, Capitol Reef National Park, Grand Staircase-Escalante National Monument, Red Canyon, Kodachrome Basin State Park, Escalante Petrified Forest State Park, Anasazi State Park, and Hole in the Rock.

As part of UDOT’s routine maintenance program, various construction projects
have been planned for this corridor. They are phased so as to minimize the impact to the traveling public, especially during the peak tourist season

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