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S. 4484Senate119th Congress (2025-2027)In Committee

I–47 Future Interstate Act of 2026

Sponsored by John CornynSen. John Cornyn (R-TX)
Introduced May 11, 2026

AI-Generated Summary

Updated May 14, 2026 at 2:51 AM UTC

The I‑47 Future Interstate Act of 2026 amends the Intermodal Surface Transportation Efficiency Act of 1991 to add U.S. Route 287, running from Port Arthur, Texas, to Choteau, Montana, as a High‑Priority Corridor and to assign it the Interstate designation I‑47. The change would upgrade this existing highway to Interstate standards, affecting the states and communities along the route.

Key Provisions

  • Adds U.S. Route 287 (Port Arthur, TX to Choteau, MT) to the list of High‑Priority Corridors in the 1991 transportation law.
  • Specifies that this corridor will be numbered as Interstate Route I‑47, making it part of the Interstate Highway System.

Legislative Activity

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1 earlier action
SenateIntro Referral Latest Action

Read twice and referred to the Committee on Environment and Public Works.

Environment and Public Works Committee

May 11, 2026

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SenateIntro Referral

Introduced in Senate

May 11, 2026

SenateIntro Referral

Read twice and referred to the Committee on Environment and Public Works.

Environment and Public Works Committee

May 11, 2026

Bill Text

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Introduced in SenateIssued May 11, 2026

II

119th CONGRESS

2d Session

S. 4484

IN THE SENATE OF THE UNITED STATES

May 11, 2026

Mr. Cornyn (for himself and Ms. Lummis) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works

A BILL

To amend the Intermodal Surface Transportation Efficiency Act of 1991 to designate United States Route 287 as Interstate Route I–47, and for other purposes.

1.

Short title

This Act may be cited as the I–47 Future Interstate Act of 2026.

2.

Designation of Interstate Route I–47

(a)

Designation as high priority corridor

Section 1105(c) of the Intermodal Surface Transportation Efficiency Act of 1991 (Public Law 102–240; 105 Stat. 2032; 135 Stat. 596) is amended by adding at the end the following:

(103)

United States Route 287 from State Highway 87 in Port Arthur, Texas, to United States Route 89 in Choteau, Montana.

.

(b)

Designation and numbering as Interstate

Section 1105(e)(5) of the Intermodal Surface Transportation Act of 1991 (Public Law 102–240; 109 Stat. 597; 135 Stat. 598) is amended—

(1)

in subparagraph (A), in the first sentence, by striking and subsection (c)(102) and inserting subsection (c)(102), and subsection (c)(103); and

(2)

in subparagraph (C)(i), by adding at the end the following: The route referred to in subsection (c)(103) is designated as Interstate Route I–47..