Low-Volume State Highways in Arizona

Maintenance of unpaved roads in Arizona has become a challenge. With strict environmental compliance issues, historical considerations, lack of surfacing materials, cost increases, an extremely dry climate, and other safety concerns, the task of maintaining these roads is increasingly difficult. The Arizona Department of Transportation Globe District has investigated and implemented various techniques to address the maintenance of unpaved roads in an efficient, cost-effective manner. Options are presented, and two case studies of the most successful techniques are outlined. Construction costs and performance of these road treatment strategies are discussed.