Documents - North-South Corridor Study

Reports and documents produced as part of the ongoing North-South Corridor Study can be found here. Please check back for new items as the study progresses.

The following information is provided as a resource to those interested in the North-South Corridor Study. Files can be large and take time to download to your computer; Adobe Reader may be needed to view these documents.

  • Public Involvement Summary Report (April 2020)
    The Public Involvement Summary Report documents the outreach efforts that the Arizona Department of Transportation took during the environmental review process for the Draft Tier 1 Environmental Impact Statement (EIS) for the North-South Corridor Study. This report documents the public review and comment period from Sept. 6 through Oct. 29, 2019. Responses to all comments will be published with the Final Tier 1 Environmental Impact Statement.
  • Draft Tier 1 Environmental Impact Statement (Sept. 2019)
    On September 6, 2019, the Arizona Department of Transportation released the Draft Tier 1 Environmental Impact Statement (Draft Tier 1 EIS) for the North-South Corridor Study. The Draft Tier 1 EIS compares the Build Corridor Alternatives against a No-Build Alternative (do-nothing option). The Draft Tier 1 EIS considers possible effects that alternatives might have on a variety of social, environmental and economic resources, and evaluates their direct, indirect and cumulative effects on the surrounding environment. The alternatives may be viewed within the North-South Corridor Study Web Map.
  • Purpose and Need (Dec. 2018)
    The Arizona Department of Transportation has developed the Purpose and Need document to provide background information on the evolution and planning context of the North–South Corridor. The Purpose and Need defines the purpose of the North–South Corridor and outlines the factors that contribute to the need for a transportation facility within the corridor study area. The Purpose and Need is a fundamental part of the National Environmental Policy Act process and provides the basis for identifying, evaluating and screening corridor alternatives. It is a key component in selecting the preferred alternative, either a build corridor alternative or the no-build alternative, for the North–South Corridor.
  • Coordination Plan for Agency and Public Involvement (Feb. 2017)
    The Coordination Plan defines the process by which ADOT will communicate information about the North–South Corridor Study Tier 1 EIS to the cooperating and participating agencies and to the public. A key focus of the plan is to facilitate an understanding with the public, tribal governments and governmental agencies regarding the study process, key milestones and decision points.
  • Scoping Report (Feb. 2011)
    The Scoping Summary Report documents the scoping process for the North-South Corridor environmental study between Apache Junction (US 60) and Picacho (I-10). The agency scoping meeting for this study occurred on October 5, 2010, and the public scoping meetings occurred October 19, 21, 26, and 28, 2010, in locations throughout the study area. The official scoping comment period ended on November 11, 2010; however, comments received after the comment period were documented and reviewed by the study team. The scoping process is in compliance with the National Environmental Policy Act.
  • Revised Notice of Intent (Oct. 2016)
    The publication of the Notice of Intent (NOI) in the Federal Register represents the official start of the National Environmental Policy Act process. A NOI to prepare an Environmental Impact Statement (EIS) was originally published in the Federal Register on Sept. 20, 2010. A second NOI was published for the North-South Corridor Study when the study was converted from a project-level EIS to a Tier 1 EIS on Oct. 3, 2016.
  • Alternative Selection Report (October 2014) 
    As a first step in the study process, the North-South Corridor Study Alternatives Selection Report (ASR) recommends route alternatives to be studied in further detail in the next phase of the study. The criteria used to evaluate alternatives in the ASR included traffic operations; roadway geometry; multimodal options; consistency with regional plans; the human, built, and natural environments; as well as stakeholder support. The report recommended several alternative 1,500-foot wide corridors for evaluation through an Environmental Impact Statement.