Loop 101 (Agua Fria) current and upcoming closures and restrictions (click here)

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Eastbound Loop 101 ramps to I-17 scheduled to be closed next weekend, June 20-21
Loop 101 lane restrictions between Union Hills Drive and 71st Avenue, and closure of 51st Avenue Loop 101 also planned June 20-21

The Arizona Department of Transportation advises drivers to plan for the following closures and restrictions as part of the Loop 101 widening project between 75th Avenue and I-17.

The eastbound Loop 101 ramps to north- and southbound I-17 will be closed from 10 p.m. Friday, June 20, to 10 p.m. Saturday, June 21.
- DETOUR TO NORTHBOUND I-17: Loop 101 drivers may exit at 35th Avenue to Deer Valley to access northbound I-17.
- DETOUR TO SOUTHBOUND I-17: Loop 101 drivers may exit at 35th Avenue to Union Hills Drive to access southbound I-17.
Loop 101 will be reduced to two lanes in both directions between Union Hills Drive and just west of 67th Avenue from 11 p.m. Friday, June 20, to 11 p.m. Saturday, June 21.
51st Avenue will be closed in both directions at Loop 101 from 11 p.m. Friday, June 20, to 11 p.m. Saturday, June 21.

LONG-TERM RAMP CLOSURES

Westbound Loop 101 off-ramp at 51st Avenue closed for approximately 60 days beginning 11:30 p.m., Monday, May 19.

DETOUR: Drivers may consider using the westbound Loop 101 off-ramp at 59th Avenue, then travel south to eastbound Union Hills Drive to reach 51st Avenue.

Eastbound Loop 101 on-ramp at 59th Avenue will be closed for approximately 60 days beginning 11:30 p.m., Monday, May 19.

DETOUR: Drivers may consider using eastbound Union Hills Drive to 51st Avenue to access eastbound Loop 101

ONGOING RESTRICTIONS

Lane restrictions are ongoing at the following locations for bridge work and frontage road improvements.

At the 51st and 35th avenue interchanges:

All on- and off-ramps will be narrowed to one lane
The left-turn lane for both east- and westbound on-ramps will be narrowed to one lane
51st and 35th avenues will be narrowed to one lane under Loop 101

At the 31st Avenue interchange:

The 31st Avenue shoulders will be closed under Loop 101. Pedestrian access is still available.

Frontage roads:

Much of the work on the frontage roads was completed in March 2025. Short-term periodic restrictions on the frontage roads may be needed in the future.

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

Overview
Project Elements
What to Expect
Schedule
Project Photos
Background and Project Documents
Public Meeting
Stay Up to Date

Overview

The project is widening 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 map

Fact Sheets

English Spanish

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 began in late September 2024 and is expected to take approximately two-and-a-half years to complete.

Project Photos

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:

Public Meeting

The Arizona Department of Transportation, in partnership with the cities of Glendale and Phoenix, and the Maricopa Association of Governments, held an in-person public meeting in September 2024, to provide more information about construction of the upcoming widening project on Loop 101 (Agua Fria Freeway) between 75th Avenue and Interstate 17.

Questions?

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

Public Meeting Documents:

Sept. 19 Public Meeting Summary

Sept. 19 Public Meeting Presentation - English

Sept. 19 Public Meeting Presentation - Spanish

Stay Up to Date

Please 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