State Route 89 widening between Prescott and Chino Valley begins

Four-lane divided highway to improve travel times for drivers

PHOENIX – The Arizona Department of Transportation will start a widening project this week on State Route 89 in an effort to improve travel times and enhance safety for motorists traveling between Chino Valley and Prescott.

Upon completion of the $17 million project, ADOT will expand the two-lane roadway to a four-lane divided highway along a five-mile segment of SR 89 (mileposts 320-325) between Road 4 South in Chino Valley and Deep Well Ranch Road in Prescott.

The new southbound roadway will be parallel to the existing highway between Prescott and Chino Valley and will include the construction of two roundabouts at Deep Well Ranch Road and Kalinich Avenue. 

Project work hours are Monday through Thursday from 6 a.m. to 6 p.m. and minimal impacts to the traveling public are expected as the majority of the work will not be performed on the existing roadway. 

This project is slated to be completed by summer 2015. 

ADOT advises drivers to proceed through the work zone with caution, comply with the reduced speed limit, and be alert for construction equipment and personnel. 

To stay up-to-date with the latest highway conditions around the state, visit the ADOT Traveler Information Center at or call 5-1-1.