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Final noise reports for SR 30, 97th Avenue to Loop 202 projects available for public review

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Public comments accepted through July 17

The Arizona Department of Transportation has released the final noise reports for the State Route 30 (Tres Rios Freeway) projects between 97th Avenue and Loop 202 (South Mountain Freeway). The reports are available on the web page below under "Final Noise Reports." 

The final noise reports identify future predicted freeway noise levels near the project area and recommend the following noise mitigation:

  • A noise wall along the southbound Loop 202 ramp to westbound SR 30
  • A noise wall along the eastbound SR 30 ramp to northbound Loop 202
  • A noise wall along the westbound SR 30 on-ramp at 67th Avenue 
  • A noise wall along the eastbound SR 30 off-ramp at 67th Avenue 

HOW TO COMMENT

Comments about the SR 30, 97th Avenue to Loop 202 Final Noise Reports may be submitted until 5 p.m. Friday, July 17, in any of the following ways:

  • Email: [email protected]
  • Call ADOT’s Project Information Line: 855.712.8530
  • Mail: ADOT Communications and Public Relations, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007

All comments must be received by July 17 to be included in the public record.

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SR 30 Center Section (Loop 303 to Loop 202)

SR 30 Center Section (Loop 303 to Loop 202)

Contents

  1. State Route 30 Corridor Overview
  2. SR 30 Center Section
  3. SR 30 Center Section Construction Timeline
  4. SR 30, 97th Avenue to Loop 202
  5. Final Noise Reports
  6. SR 30, Loop 303 to 97th Avenue Projects
  7. Stay Informed

State Route 30 Corridor Overview

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.

SR 30 Center Section

Map of the SR 30 Center Section between Loop 303 and Loop 202 showing the planned alignment through Goodyear, Avondale, and Tolleson, with construction segments and anticipated start years (FY 2027 to FY 2033)

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:

  • 97th Avenue to Loop 202 — starts FY 2027
  • Dysart Road to 97th Avenue — starts FY 2029
  • Estrella Parkway to Dysart Road — starts FY 2031
  • Loop 303 to Dysart Road — starts FY 2033

SR 30, 97th Avenue to Loop 202

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:

  • A new freeway with three general-purpose lanes in each direction
  • A new system-to-system interchange at SR 30 and Loop 202 (South Mountain Freeway)
  • Widening Loop 202 between Baseline and Buckeye roads, and widening existing bridges at Loop 202 and Baseline Road, Southern Avenue, Broadway and Lower Buckeye roads, the Roosevelt Irrigation Canal and Buckeye Road, to accommodate new SR 30/Loop 202 system ramps
  • Traffic interchanges at 91st, 83rd and 67th avenues
  • New bridges at 91st, 83rd, 75th and 67th avenues
  • Drainage improvements and new lighting throughout the project area
  • A multi-use pathway from 97th Avenue to Loop 202
  • Noise walls where warranted

Map of the SR 30 segment from 97th Avenue to Loop 202 showing the project area, planned traffic interchanges at 91st, 83rd and 67th avenues, new bridges, the SR 30/Loop 202 system interchange, and nearby roads including Broadway Road, Southern Avenue, and Baseline Road.

Map of the SR 30, 97th Avenue to Loop 202 project area.

Project Schedule

  • 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.

Project Simulation

Final Noise Reports

SR 30, Loop 303 to 97th Avenue Projects

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:

  • Segment 1: 97th Avenue to Dysart Road
  • Segment 2: Dysart Road to Estrella Parkway
  • Segment 3: Estrella Parkway to Loop 303

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. 

Stay Informed

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Subscribe to receive project updates by email. Submit questions and comments or request information in any of the following ways:

  • Phone: ADOT Project Information Line: 855.712.8530
  • Email: [email protected]
  • Mail: ADOT Communications, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007

Contents

  1. State Route 30 Corridor Overview
  2. SR 30 Center Section
  3. SR 30 Center Section Construction Timeline
  4. SR 30, 97th Avenue to Loop 202
  5. Final Noise Reports
  6. SR 30, Loop 303 to 97th Avenue Projects
  7. Stay Informed