See below for the Feb. 12 public meeting presentation, project simulation, public comment survey instructions and additional project information.
The Arizona Department of Transportation (ADOT), in cooperation with the Federal Highway Administration (FHWA) and the Maricopa Association of Governments (MAG), has initiated a project to design and construct State Route 30 (Tres Rios Freeway), a new freeway in the southwest valley. SR 30 will serve as a traffic reliever and alternate route to Interstate 10, crossing the cities of Buckeye, Goodyear, Avondale and Phoenix.
SR 30 will ultimately extend from State Route 85 to Interstate 17 at the Durango Curve. For planning purposes, the SR 30 Corridor project was divided into three sections: east, center and west. The center section of SR 30, between Loop 303 and Loop 202, will be constructed first due to its potential to relieve congestion on I-10. For more information about the east and west sections of SR 30, please visit the State Route 30 (Tres Rios Freeway) webpage.
Planned alignment of the center section of SR 30.
Design and construction of the center section of SR 30 will occur in phases from east to west, as identified in MAG’s Regional Strategic Transportation Infrastructure Investment Plan (RSTIIP), and is funded in part through Proposition 479, a dedicated half-cent sales tax for transportation approved by Maricopa County voters in 2024.
Anticipated construction timeline:
This segment of SR 30 is in final design. Construction is anticipated to begin in summer 2027 and is expected to take approximately three years to complete. This project will create a new 4.5-mile segment of SR 30 between 97th Avenue and Loop 202. In addition to constructing SR 30, the project includes improvements to Loop 202 to accommodate the new system interchange with SR 30.
The initial SR 30 freeway is being designed to accommodate anticipated growth and future traffic volumes through 2050, with the ability to expand to the ultimate planned roadway configuration consisting of four general purpose lanes and one HOV lane in each direction, and direct connecting HOV ramps between SR 30 and Loop 202.
The project includes:
Map of the SR 30, 97th Avenue to Loop 202 project area.
The design phase for this project began in Oct. 2024 and is expected to be completed in fall 2026.
Construction is slated to begin in summer 2027 and is expected to take approximately three years to complete, ending in summer 2030.
*Schedule is approximate and subject to change.
ADOT held a public meeting at Western Valley Middle School on Thursday, Feb. 12, 2026, to share design plans for the State Route 30, 97th Avenue to Loop 202 project, the first segment of the new SR 30 freeway. The public comment period for the 97th Avenue to Loop 202 project is open until 5 p.m. Friday, Feb. 27.
The public is encouraged to comment on the project in any of the following ways:
Construction of this segment of SR 30 is planned to occur after the completion of the southward extension of Loop 303 from Van Buren Street to MC 85, which is expected to begin in early 2026. For more information on the Loop 303, Van Buren Street to MC 85 Extension, please visit azdot.gov/L303-MC85-VanBuren.
This area of SR 30 will be designed and constructed in three segments:
Design for all three segments is expected to be completed in spring 2028 with construction phased from east to west and beginning in fiscal year 2029.
Nov. 2019 Final Environmental Assessment (EA) and Finding of No Significant Impact (FONSI)
April 2020 Final Design Concept Report
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