Loop 101 (Agua Fria Freeway), 75th Avenue to I-17 Improvements

Overview

The project will widen Loop 101 between 75th Avenue and I-17 by one general-purpose lane in each direction to improve traffic flow on Loop 101 and the cross streets. Other improvements include widening bridges, modifying interchange ramps and frontage roads in some locations, adding a third southbound left turn lane onto Loop 101 at 75th Avenue, improving the system interchange ramp between westbound Loop 101 and northbound I-17 and resurfacing the roadway.

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.

Project Elements

• Adding one general purpose lane to the outside of Loop 101 in each direction between 75th Avenue and I-17. 
• Widening bridges at 51st, 35th and 31st avenues and constructing new retaining walls. 
• Modifying interchange ramps and frontage roads in some locations. 
• Interchange improvements at 75th Avenue to add a third southbound left turn lane onto eastbound Loop 101. 
• Adding or modifying noise walls in some locations where warranted. 
• Removing the worn asphalt and resurfacing the concrete pavement by diamond grinding.
• Upgrading freeway and ramp lighting.
• Modifying the existing freeway drainage system. 
• Replacing impacted landscaping.
   

What to Expect

• Construction is expected to take approximately two-and-a-half years to complete.
• Work will require lane restrictions and full closures on Loop 101, the interchange ramps and cross streets, and will occur primarily during overnight hours and weekends to minimize traffic impacts.
• Long-term on- and off-ramp closures will be required (up to 60 days).
• ADOT will provide advance notice of restrictions and closures to email subscribers and on the project web page.
• Access to businesses and residences will be maintained.
   

Schedule

• The project is expected to begin in late September 2024 and take approximately 30 months to complete.
• As the date draws closer, more information will be available on construction impacts.
   

Background and Project Documents

Public Involvement: 

• The project team presented information and answered questions about the design plans for the Loop 101 widening project at a virtual public meeting held the evening of Thursday, Feb. 24, 2022. A video recording of the meeting and other project information can be found here. 
• An earlier public meeting was held in 2021. Information on that meeting can be found here.  

Project Documents:

• Final Noise Report - Aug. 3, 2021 
• Addendum 1 to Final Noise Report - Feb. 2, 2022
   

Public Meeting 

The Arizona Department of Transportation, in partnership with the cities of Glendale and Phoenix, and the Maricopa Association of Governments, will hold an in-person public meeting on Thursday, Sept. 19, to provide more information about construction of the upcoming widening project on Loop 101 (Agua Fria Freeway) between 75th Avenue and Interstate 17. The project, which will add one general purpose lane in each direction, is expected to begin in late September. 

PUBLIC MEETING
Thursday, Sept. 19, 6:30-7:30 p.m.
Foothills Recreation & Aquatic Center
5600 W. Union Hills Dr., Glendale

Questions?

• Phone: ADOT Project Information Line: 855.712.8530
• Email: Kimberly Larson at [email protected]

 

Stay Up to Date

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Submit questions and comments or request information in any of the following ways:

• By Phone: ADOT Project Information Line: 855.712.8530
  Línea de Información del Proyecto ADOT: 855.712.8530
• Online: Visit azdot.gov/contact and select Projects from the drop-down menu
• By Mail: ADOT Communications, 1655 W. Jackson St., MD 126F, Phoenix, AZ 85007