Arizona's New Highway: Environment Check Before the Big Dig
Published Date: 5/28/2025
Notice
Summary
The Arizona Department of Transportation is planning a new highway called the Sonoran Corridor between I-19 and I-10 in Pima County. They’re getting ready to study how this project might affect the environment and want your thoughts! This process will help shape the road and could impact travel and local communities in the coming years.
Analyzed Economic Effects
1 provisions identified: 0 benefits, 0 costs, 1 mixed.
Sonoran Corridor Tier 2 EIS Starts
The Federal Highway Administration and the Arizona Department of Transportation will prepare a Tier 2 Environmental Impact Statement (EIS) for the Sonoran Corridor (State Route 410), a new highway between Interstate 19 (I-19) and Interstate 10 (I-10) in Pima County, Arizona. FHWA and ADOT say they completed a Tier 1 Final EIS and Record of Decision in October 2021 and the Tier 2 EIS will build on that work. The Tier 2 EIS process will study how the road might affect the environment, travel, and local communities and will solicit comments from the public, agencies, Tribes, and stakeholders.
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Key Dates
Department and Agencies
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