US 180 Five Mile Wash and Little Colorado River Bridge Replacement

Project Cost: $9 million

Overview

The Arizona Department of Transportation has initiated a project to replace the Five Mile Wash Bridge and the Little Colorado River Bridge along US 180 near Holbrook. The bridges are located southeast of downtown Holbrook at mileposts 309 and 310 respectively on the way to the city of St. Johns. 

The project is expected to begin in summer 2026 and be completed in summer 2027 with a winter hiatus.

Project Map

Project Elements

The purpose of this project is to replace the existing bridges with new structures that will allow the highway to continue to serve drivers. The work will include:

• Removing the existing bridges and constructing a new concrete box culvert over Five Mile Wash (milepost 309) and a new bridge at the Little Colorado River (milepost 310).
• Roadway improvements at the bridge approach and departure to match new deck elevations.
• Replacing pavement markings, signing, guardrail and other related work.

What to Expect During Construction

There will be shoulder and lane restrictions along US 180 during construction. At Five Mile Wash, US 180 will be reduced to one lane only with alternating east- and westbound traffic that will be controlled by a temporary traffic signal. One lane in each direction will be maintained along US 180 at the Little Colorado River. 

Drivers will need to slow down and expect frequent stops when approaching the work zone.

ADOT will post information about traffic restrictions and closures as it becomes available. To receive traffic alerts and other updates by email, please subscribe here.

You can also stay informed of real-time, project-related traffic restrictions by visiting az511.gov or call 511, except while driving.

Schedules are subject to change because of weather or other unforeseen factors. Remember to slow down and use caution around construction workers and equipment. 

Stay Informed

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• Email/Phone: Contact Community Relations Project Manager Ryan Harding at [email protected] or 602.550.8397
• Línea Bilingüe de Información del Proyecto ADOT: 855.712.8530
• Mail: Ryan Harding, ADOT Community Relations, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007.