RJH will be providing design engineering services for rehabilitation of a 30-foot-tall, high-hazard dam located in the Tohono O’odham Nation in southern Arizona. The purpose of the project is to mitigate previously identified dam safety deficiencies, which include overtopping of the embankment and internal erosion through the embankment and foundation. The project will be conducted in four phases and is expected to be complete by summer 2022.
