The Arizona Department of Transportation and the Federal Highway Administration began working in early 2011 on an engineering and environmental study for SR 189 (Mariposa Road). The goal of the study is to develop a long-range plan for future improvements between the U.S.-Mexico border and Grand Avenue. The study is currently in the alternatives development phase.
SR 189 Fact Sheet
SR 189 Alternative Screening Report
Environmental Assessment (EA): document that will record environmental considerations related to the SR 189 Recommendations
Evaluación Ambiental (EA): documento que registrara las consideraciones ambientales relacionadas con las recomendaciones en la Ruta Estatal 189