The purpose of the SR-80 and US-191 Oversize Load Study is to identify roadway conditions that restrict travel by oversize vehicles on the SR-80 and US-191 study routes. The study also recommends infrastructure and related improvements that will eliminate or mitigate restrictions to the safe and efficient flow of oversize vehicles. Restrictions on I-10, as well as destinations in the SouthEastern Arizona Governments Association (SEAGO) region and in Mexico, require oversize vehicles to use SR-80 and US-191 in Cochise County in southeastern Arizona. In addition, restrictions on SR-80 and US-191 result in detours onto county roads that are not designed to accommodate oversize vehicles. As a result, the county roads experience damage to pavement and infrastructure and disruption of traffic flow.