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HB2601 • 2026

Interstate 11; environmental; engineering; study

HB2601 - Interstate 11; environmental; engineering; study

Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Matt Gress, Leo Biasiucci, Pamela Carter, Chris Lopez, Teresa Martinez
Last action
2026-06-10
Official status
Senate passed
Effective date
Not listed

Plain English Breakdown

The official text states the law becomes effective on the 'general effective date' but does not specify a calendar date in this document.

HB2601: Study Plan for Part of Interstate 11

This law requires the Arizona Department of Transportation to ask federal officials to approve building a specific section of Interstate 11 separately from other parts of the highway.

What This Bill Does

  • Requires ADOT to request that the Federal Highway Administration split the Interstate 11 project into separate sections within 14 days of the law taking effect.
  • Focuses this request on the stretch between Interstate 10 at Casa Grande and Wickenburg as a segment with independent utility.
  • Mandates ADOT to finish environmental reviews for that specific section within three months after federal approval is granted.
  • Requires ADOT to get all needed state or federal authorizations before starting work on the approved segment.

Who It Names or Affects

  • The Arizona Department of Transportation (ADOT)
  • The Federal Highway Administration (FHWA)

Terms To Know

Segmentation
Breaking a large project into smaller parts so one part can be built without waiting for the others.
Independent utility
A section of a road that provides value and works on its own, even if other sections are not finished yet.

Limits and Unknowns

  • The law does not provide new funding for the project.
  • ADOT must wait for federal approval before starting environmental reviews or construction.
  • This bill only covers planning and approvals; it does not guarantee when building will start.

Amendments

These notes stay tied to the official amendment files and metadata from the legislature.

Plain English: This amendment changes the plan for Interstate 11 to focus only on a specific section between Casa Grande and Wickenburg, requiring state officials to get federal approval before starting environmental reviews.

  • The project is now defined as just the segment from Interstate 10 at Casa Grande to Wickenburg, instead of running all the way to the Nevada border.
  • State transportation officials must ask the Federal Highway Administration for permission to treat this specific section as a separate project before doing any work.
  • Officials are required to follow federal laws and guidance when completing environmental reviews and getting necessary permits for this segment.
  • The official reasons listed in the bill were updated to explain that separating this part of the highway allows construction to continue despite legal challenges elsewhere.
  • This explanation is based only on the amendment text provided, so it does not include details about specific environmental impacts or exact costs.
  • The final outcome depends on whether federal agencies approve the request to separate this highway segment from the rest of the project.

Bill History

  1. 2026-06-10 Senate

    Senate passed

  2. 2026-06-09 Senate

    Senate third read failed

  3. 2026-04-13 Senate

    Senate committee of the whole

  4. 2026-04-07 Senate

    Senate minority caucus

  5. 2026-04-07 Senate

    Senate majority caucus

  6. 2026-04-07 Senate

    Senate consent calendar

  7. 2026-03-17 Senate

    Senate second read

  8. 2026-03-16 Senate

    Senate Rules: PFC

  9. 2026-03-16 Senate

    Senate Appropriations, Transportation and Technology: DP

  10. 2026-03-16 Senate

    Senate first read

  11. 2026-03-10 Senate

    Transmitted to Senate

  12. 2026-03-10 House

    House third read passed

  13. 2026-03-09 House

    House amended committee of the whole

  14. 2026-03-09 House

    House passed

  15. 2026-03-02 House

    House committee of the whole

  16. 2026-02-24 House

    House minority caucus

  17. 2026-02-24 House

    House majority caucus

  18. 2026-02-23 House

    House consent calendar

  19. 2026-01-21 House

    House second read

  20. 2026-01-20 House

    House Rules: C&P

  21. 2026-01-20 House

    House Transportation & Infrastructure: DP

  22. 2026-01-20 House

    House first read

Official Summary Text

HB2601 - 572R - Senate Fact Sheet

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COMMITTEE

ARIZONA STATE SENATE

Fifty-Seventh
Legislature, Second Regular Session

FACT SHEET FOR
h.b. 2601

Interstate 11; environmental;
engineering; study

Purpose

Requires the
Arizona Department of Transportation (ADOT) to formally request from the
Federal Highway Administration (FHWA) for segmentation of the Interstate 11
project, as prescribed.

Background

The Interstate
11 Tier 1 Environmental Impact Statement and record of decision from the City
of Nogales to the Town of Wickenburg was completed and published by ADOT in
November 2021. For Interstate 11 to advance, the project would need: 1) National
Environmental Policy Act (NEPA) approval; 2) to identify funding sources; and
3) to conduct specific project-level Tier 2 NEPA studies of priority corridor
segments (
ADOT
).

There is no
anticipated fiscal impact to the state General Fund associated with this
legislation.

Provisions

1.

Requires ADOT, within 14 days after the general effective date, to formally
request from the FHWA for segmentation of the Interstate 11 project between
Interstate 10 at the City of Casa Grande and the Town of Wickenburg as a
segment of independent utility.

2.

Requires ADOT, no later than three months after federal approval of
segmentation, to carry out the environmental reviews and obtain any federal or
state authorizations that are required for the segment.

3.

Contains a statement of legislative findings.

4.

Becomes effective on the general effective date.

House Action

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Prepared by Senate Research

March 27, 2026

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Current Bill Text

Read the full stored bill text
HB2601 - 572R - H Ver

House Engrossed

Interstate 11;
environmental; engineering; study

State of Arizona

House of Representatives

Fifty-seventh Legislature

Second Regular Session

2026

HOUSE BILL 2601

AN
ACT

Amending title 28, Chapter 20, Article 1,
Arizona Revised Statutes, by adding Section 28-6902; relating to state
highways and routes.

(TEXT OF BILL BEGINS ON NEXT PAGE)

Be it
enacted by the Legislature of the State of Arizona:

Section 1. Title 28, chapter 20, article 1,
Arizona Revised Statutes, is amended by adding section 28-6902, to read:

START_STATUTE
28-6902.

Interstate 11

A. Not later than fourteen days after
the effective date of this section, the department shall formally request from
the federal highway administration for segmentation of the interstate 11
project between
interstate 10 at the city of casa grande
and the town of wickenburg as a segment of INDEPENDENT utility.

B. Not later than three months after
federal approval of segmentation requested pursuant to subsection A of this
section, the department shall
carry out the ENVIRONMENTAL
reviews and OBTAIN any federal or state authorizations that are required for
the segment described in subsection A of this section, consistent with
applicable federal law and the federal highway administration's GUIDANCE.
END_STATUTE

Sec. 2.
Legislative
findings

The legislature finds that:

1. A 2022 lawsuit stalled
the entire Interstate 11 project statewide, even in areas not directly
implicated by the lawsuit, delaying congestion relief, safety improvements and economic
development.

2. Advancing the tier 2
study for the rest of the corridor is a lawful and practical
solution. This advancement demonstrates independent utility, serves
existing and projected transportation demand and can function regardless of
future decisions on southern alignments.

3. The rest of the corridor
is environmentally distinct from the contested portions of the corridor and
does not raise the same land-use or protected-resource concerns at issue in the
lawsuit.

4. Segmenting the project
is consistent with federal highway administration precedent and long-standing
national environmental policy act practice, allowing discrete projects to
advance when the segments stand on separate merit.

5. Moving forward with tier
2 does not undermine the ongoing litigation. It simply ensures this
state can continue responsible, incremental planning where legally permissible.

6. Interstate 11 is
critical to Arizona's economic future, improving freight movement, supporting
regional growth, enhancing interstate commerce and increasing safety for
rapidly growing communities.