Loop 101 and Interstate 10 System Interchange Improvements
Loop 101 and Interstate 10 System Interchange Improvements
Contents
Overview
The Arizona Department of Transportation completed a study in 2023 that evaluated improvements to the Loop 101 (Agua Fria Freeway) and Interstate 10 system interchange in the West Valley, producing a Design Concept Report.
This project is in partnership with the Maricopa Association of Governments, and in cooperation with the cities of Phoenix, Tolleson, Avondale, Goodyear and Glendale. This project is included in the Regional Transportation Plan for Maricopa County and is funded through Prop 400, a countywide dedicated half-cent sales tax for transportation improvements approved by voters in 2004.
The purpose of the project is to:
- Mitigate weaving movements for HOV traffic
- Improve safety and traffic operations
- Improve movement at traffic interchanges and surface streets
- Accommodate future widening projects
Project Area
Project Elements
- A new Direct High-Occupancy Vehicle (DHOV) ramp within the existing interchange that will accommodate travel to/from the north along Loop 101 and to/from the east along I-10.
- Widening of Loop 101 and I-10 to accommodate the new DHOV ramp
- A new connection from the south to east freeway system ramp and 91st Avenue, called a ‘slip ramp.’
- An extension of the southbound Loop 101 off-ramp at McDowell Road
- Noise walls, where warranted
- Possible minor right-of-way impacts
Project Documents
Noise Analysis Report - June 27, 2023
Noise Addendum - Dec. 20, 2024
To review more project documents, including the Design Concept Report, vist the Project Documents page.
Oct. 17, 2024 Virtual Public Meeting
ADOT held a virtual public meeting on the final design for the Loop 101 and I-10 System Interchange on Thursday, Oct. 17, 2024.
Download the Oct. 17 Public Meeting Summary.
Virtual Public Meeting Recording - English
Virtual Public Meeting Recording - Spanish
Presentations
Video Simulation - English
Video Simulation - Spanish
Schedule
The project concluded the Final Design phase in early 2025. It is advertising for construction in summer 2025, and is expected to begin construction in late 2025.
Public Input
Two public meetings were held during the study phase. Visit the study page to learn more about the public meetings, and view study documents, including the Design Concept Report, Noise Report and more.
The public will be invited to learn about the final design of the project and provide input in 2024, anticipated most likely in late summer.
Stay Informed

Please Subscribe to receive project updates by email.
Submit questions and comments or request information in any of the following ways:
- Phone: ADOT Bilingual Project Information Line: 855.712.8530
- Email: [email protected]
- Mail: ADOT Communications, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007