Press Releases | Public Invited to Comment on I-10 Widening Study Near Wild Horse Pass

News Releases

PHOENIX (Aug. 19, 2022) — Public encouraged to attend public hearings and provide comments through Oct. 9 on recommendations for I-10 improvements between Loop 202 and SR 387
August 19, 2022

Public encouraged to attend public hearings and provide comments through Oct. 9 on recommendations for I-10 improvements between Loop 202 and SR 387

For Immediate ReleaseContact: Quinn Quihui Castro, MAG Transportation Engineer, (602) 254-6300
I-10 Study: Loop 202 to State Route 387 Wild Horse Pass Corridor logo

PHOENIX (August 19, 2022) — Members of the public can now review and comment on recommendations to improve traffic flow on a critical stretch of Interstate 10. 

Draft study documents are available detailing recommended steps to widen and improve the Wild Horse Pass corridor, a 26-mile stretch of Interstate 10 between Phoenix and Casa Grande.

The draft Environmental Assessment (EA) and Design Concept Report (DCR) for the I-10, Loop 202 (Santan Freeway) to State Route 387 study identifies the recommended approach for widening    I-10 and modifying traffic interchanges and crossroads. The study is being conducted by the Arizona Department of Transportation, in coordination with the Gila River Indian Community, the Bureau of Indian Affairs, the Federal Highway Administration, and the Maricopa Association of Governments. 

This segment of I-10 is located primarily within the Gila River Indian Community, and includes smaller portions within the cities of Phoenix, Chandler and Casa Grande. Proposed improvements would widen I-10 from two to three lanes in each direction, providing three continuous lanes between Phoenix and Tucson. The proposed I-10 improvements also include High Occupancy Vehicle (HOV) lanes from Loop 202 to Riggs Road, as well as modifying all 10 interchanges and crossroads over I-10. ADOT is planning to replace the I-10 bridges over the Gila River, but that is covered as part of a separate study:

The draft EA and DCR are available for public comment from Aug. 19, through Oct. 9. During the comment period, three in-person public hearings and one virtual public hearing will be held to provide information on the draft EA and DCR, share ADOT’s preliminary recommendation, and receive public comment. Public hearings will be held:

  • Wednesday, Sept. 7 | 5:30 – 7:30 p.m.
    Valley Christian High School, 6900 W Galveston St., Chandler
  • Tuesday, Sept. 13 | 5:30 – 7:30 p.m.
    Vista Grande High School, 1556 N Arizola Road, Casa Grande.
  • Thursday, Sept. 15 | 5:30 – 7:30 p.m.
    District 4 Multipurpose Building, 2230 N Home Run Drive., Sacaton. 
  • Tuesday, Sept. 20 | 5:30 – 9 p.m. (Virtual)
    • English
      Phone: +1-408-418-9388 
      Meeting number (access code): 2484 471 6549
      Webinar password: WHP2022 (9472022 from phones)
    • Spanish
      Enlace (Inglés):
      Teléfono: +1-408-418-9388 
      Número de Reunión (Código de acceso): 2490 170 8079
      Clave: WHP2022 (9472022 from phones)

Information presented at each hearing will be the same. More details about the public hearing, including the hearing agendas and presentation, is available for viewing on the study website at

Printed copies of the draft EA and DCR are available for review at the repository locations listed below. In addition, the documents are available for download from the study website at Select technical reports associated with draft EA will be available upon request. 


Casa Grande Public Library, 449 N. Drylake St., Casa Grande 
Ironwood Library, 4333 E. Chandler Blvd., Phoenix  

Comments may be submitted in the following ways during the public comment period:

  • Attend a public hearing: Provide written/verbal comments at the virtual and in-person public hearings
  • Online through the I-10 comment form or comment map:
  • Email:  [email protected] 
  • Call:     602-522-7777 
  • Mail:    I-10 Wild Horse Pass Corridor Study Team | c/o HDR, Inc., 
               20 E. Thomas Rd., Suite 2500 | Phoenix, AZ 85012

Title VI of the Civil Rights Act of 1964 and the Americans with Disabilities Act (ADA)

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact Kim Larson at 855.712.8530 or [email protected]. Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo al Título VI de la Ley de Derechos Civiles de 1964, la Ley para Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras leyes y autoridades contra la discriminación, ADOT no discrimina por raza, color, origen nacional, edad, género o discapacidad. Las personas que requieran una adaptación razonable basada en el idioma o la discapacidad deben comunicarse con Kim Larson al [email protected] o al 855.712.8530. Las solicitudes deben hacerse lo más pronto posible para asegurar que ADOT tenga oportunidad de hacer los arreglos necesarios.

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 U.S.C. 327 and a Memorandum of Understanding dated 04/16/2019 and executed by FHWA and ADOT.

Las consultas, la revisión ambiental y otras acciones requeridas según las leyes ambientales federales correspondientes para este proyecto se están llevando a cabo o se han llevado a cabo por ADOT de acuerdo con 23 U.S.C 327 y un Memorándum de Acuerdo con fecha del 16 de abril de 2019 y se han realizado por FHWA y ADOT.