Sedona AZ (March 23, 2012) – The Arizona Department of Transportation will begin trimming trees and brush along State Route 89A from Sedona to Flagstaff on Monday (March 26). The work, which will improve driver visibility, will require single lane closures from March 26 through April 13. Work hours will be 6 a.m. to 5 p.m., Monday through Friday. During work hours, one lane will be closed and drivers will be directed through the work zone in alternating directions. Flaggers and signage will be on hand to help direct traffic.