Documents - North-South Corridor Study

Reports and documents produced as part of the ongoing North-South Corridor Study can be found here.

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.

Final Tier 1 EIS/ROD (August 2021)

Final Tier 1 EIS/ROD (August 2021)
The Tier 1 Environmental Impact Statement (EIS) and Record of Decision (ROD) for the North-South Corridor Study (Final Tier 1 EIS/ROD) is now available. Since this is a combined Final EIS/ROD there is no formal comment period.

Public Involvement Summary Report (April 2020)

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 are published within the Final Tier 1 Environmental Impact Statement and may be found in Volume III: Appendix O. Agency and Public Comments.

Draft Tier 1 Environmental Impact Statement (September 2019)

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 Selected Corridor Alternative may be viewed within the North-South Corridor Study Web Map.

Purpose and Need (December 2018)

Purpose and Need (Dec. 2018)
The Arizona Department of Transportation 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 determining the Selected Corridor Alternative for the North–South Corridor.

Coordination Plan for Agency and Public Involvement (February 2017)

Coordination Plan for Agency and Public Involvement (Feb. 2017)
The Coordination Plan defines the process by which ADOT communicates 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.

Revised Notice of Intent (Oct. 2016)

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)

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.

Scoping Report (February 2011)

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.