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

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The Arizona Department of Transportation advises drivers to plan for the following closures and restrictions as part of the Loop 101 (Agua Fria Freeway) widening project:

The east- and westbound Loop 101 ramps to northbound Interstate 17 will be closed nightly from 10 p.m. to 5 a.m. beginning Wednesday, May 6, and ending Friday morning, May 8.
- Detour: Drivers may consider exiting at 35th or 19th avenues and traveling north to Pinnacle Peak Road to access northbound I-17. Reminder: The northbound on-ramp at Deer Valley Road is closed.
The northbound I-17 off-ramp at Pinnacle Peak Road will be closed nightly from 10 p.m. to 5 a.m., beginning Wednesday, May 6, and ending Saturday morning, May 9.
- Northbound I-17 also will be narrowed to three lanes in the area.
- Detour: Drivers may consider using the northbound exit at Deer Valley Road.
The northbound I-17 on-ramp at Pinnacle Peak Road will be closed nightly from 10 p.m. to 5 a.m. beginning Thursday, May 7, and ending Saturday morning, May 9.
- Detour: Drivers may consider accessing northbound I-17 at Happy Valley Road.
The westbound Loop 101 on-ramp at 67th Avenue will be closed from 10 p.m. Friday, May 8, to 5 a.m. Saturday, May 9.
- Westbound Loop 101 also will be narrowed to two lanes in the area between 75th and 67th avenues.
Detour: Drivers may consider using the westbound Loop 101 on-ramp at 59th Avenue.

Ongoing long-term lane restrictions

UPDATED: 75th Avenue will continue to be narrowed to one through lane in each direction between Rose Garden Lane and Arrowhead Clubhouse Drive through the end of May.
- Detour: Drivers may consider using 67th or 83rd avenues to access 75th Avenue via Deer Valley Road or Union Hills Drive.
- Note: Some left turns will be restricted along 75th Avenue and sidewalks may be closed intermittently.

UPDATED: The eastbound Loop 101 frontage road is reduced to one lane between 37th and 35th avenues through early June.

LONG-TERM RAMP CLOSURES

The westbound Loop 101 off-ramp at 75th Avenue is closed for approximately 60 days beginning 11:30 p.m. Monday, March 9.
- Detour: Westbound drivers may exit at 67th Avenue and travel north to Deer Valley Road or south to Union Hills Drive to reach their destination. Note: 75th Avenue will have ongoing lane restrictions between Loop 101 and Rose Garden Lane that are expected to end in April.
The eastbound Loop 101 on-ramp at 67th Avenue is closed for approximately 60 days beginning 11:30 p.m. Monday, March 16.
- Detour: Drivers may consider taking the eastbound frontage road (Beardsley Road) to 59th Avenue to access Loop 101.
The eastbound Loop 101 off-ramp at 59th Avenue is closed for approximately 60 days beginning 11:30 p.m. Monday, March 23.
- Detour: Drivers may consider exiting at 67th Avenue and using the eastbound frontage road to reach 59th Avenue

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

Overview
Project Elements
What to Expect
Schedule
Project Photos
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

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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 a lane to the westbound Loop 101 ramp to northbound I-17.
Adding a new lane to northbound I-17 between Loop 101 and Pinnacle Peak road to accommodate the additional traffic lane from westbound 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

Find more photo albums on Flickr:

December 2024
June 2025
February 2026

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