North-South Segment 2 Tier 2 Environmental Impact Statement and Design Concept Report Arizona Farms Rd to Interstate 10 (SR 505)

Overview

The Arizona Department of Transportation (ADOT) is conducting a Tier 2 Environmental Impact Statement (EIS) and Design Concept Report (DCR) for North-South Segment 2 from Arizona Farms Road to Interstate 10 (SR 505). The Segment 2 study corridor spans approximately 31 miles from Florence to Eloy. Segment 1 of the North-South corridor between US 60 and Arizona Farms Road is a separate but related effort that is also underway.

In 2021, ADOT selected a 1,500-foot North-South Corridor route as part of the previous Tier 1 Environmental Impact Statement (EIS) study. ADOT will now be conducting a Tier 2 EIS study, which will refine the corridor to a preferred 400-foot SR 505 highway alignment and identify the location of interchanges and other features.

Public meetings were held in August 2025 to provide information on the study and seek the public’s input. The meeting presentation and materials are available below for those unable to attend a meeting.

The purpose of the project is to improve the transportation network to accommodate existing and future populations, improve access and regional mobility, provide an alternative to I-10, improve north-to-south connectivity and integrate the region’s transportation network.

This study will:

Develop and evaluate a range of alternatives for potential 400-foot-wide freeway alignments within the selected 1,500-foot Tier 1 study corridor, as well as potential interchange locations and other design features
Identify environmental considerations, avoidance, minimization and mitigation efforts
Develop design concepts for the alternatives
Prepare draft and final EIS and DCR documents identifying the Preferred Alternative and issue a Record of Decision identifying the Selected Alternative

Map

View an interactive map of the North-South Corridor

2025 Public Meeting Materials

A comment period was held from July 21, 2025 through Sept. 8, 2025 to gather public input on the preliminary range of alternatives and the preliminary project purpose and need. All comments and questions received during that period will be addressed in the public involvement summary.

Public meetings were held on Aug. 7, 2025 in Florence, Aug. 12, 2025 in Eloy, and Aug. 14, 2025 virtually. Meeting documents are linked below.

The environmental review, consultation and other actions required by applicable Federal environmental laws for this project are being or have been carried out by ADOT pursuant to 23 USC 327 and a Memorandum of Understanding dated 06/25/2024 and executed by FHWA and ADOT.