Sedona AZ (June 24, 2013) – The Arizona Department of Transportation will improve a five-mile stretch of State Route 89 in fall 2013 between Road 4 South in Chino Valley and Deep Well Ranch Road in Prescott. In order to improve motorist travel times and safety, the project will upgrade the existing roadway from a two-lane to a four-lane divided highway, and construct roundabouts at Deep Well...