Transportation Studies

State Route 189 Study: International Border to Grand Avenue

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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.


Environmental Assessment (EA): document that will record environmental considerations related to the SR 189 Recommendations.

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