New I-17 drainage system in place at underpasses in north Phoenix

Jul 5, 2023, 4:35 AM

(Arizona Department of Transportation highway camera)...

(Arizona Department of Transportation highway camera)

(Arizona Department of Transportation highway camera)

PHOENIX — A new Interstate 17 drainage system designed to reduce flooding in the underpasses between Peoria Avenue and Greenway Road in Phoenix is ready to operate, Arizona DOT announced.

The construction of the $38 million system was done by the Maricopa Association of Governments, the Valley’s metropolitan planning organization.

Crews installed pipelines and large storm retention basins for the system near Thunderbird Road, according to a press release.

The new system will allow ADOT to remove old pump stations that were installed in 1964 near underpasses carrying Peoria Avenue and Cactus, Thunderbird and Greenway roads beneath I-17. The underpasses have been areas of heavy flooding after rain.

Work on the system began in 2020 including extensive trench work as well as tunneling under I-17 for pipeline installation. The water will drain into retention basins or the Arizona Canal Diversion Channel north of Dunlap Avenue.

ADOT reminds drivers that despite the new system, monsoon storms can bring heavy rain over a short period of time and can be taxing on any drain system, meaning drivers should always proceed with caution.

The improvement was a part of the Regional Transportation Plan for the Maricopa County region which is majority funded by Proposition 400.

We want to hear from you.

Have a story idea or tip? Pass it along to the KTAR News team here.

Arizona News

Birdcall storefront...

Brandon Gray

Chicken restaurant Birdcall expands with grand opening in Phoenix

Denver-based chicken restaurant Birdcall announced the grand opening of its second Arizona location in the Valley.

4 hours ago

Downtown Phoenix skyline...

Weekend wrap-up: Here are the biggest Arizona stories from Sept. 23-24

In case you missed it. Here are some of the biggest stories that headlined the Arizona news cycle over the weekend.

6 hours ago

(Public Domain Photo)...

Salt River Project celebrates National Drive Electric Week

Salt River Project is celebrating 2023 National Drive Electric Week with rebates on electric charging stations for personal use and for businesses.

10 hours ago

patrol car in roadway in front of yellow tape...

2 people are dead after separate shooting incidents occur within hours in Phoenix

Two people were pronounced dead in Phoenix after two shooting incidents occurred within two hours of each other on Saturday.

13 hours ago

(AZ511 Photo)...

Eastbound Loop 202 reopens after for multi-car crash leaving 1 dead

Authorities closed eastbound traffic on the Loop 202 near 32nd Street early Sunday after a pedestrian was struck and killed by a car.

15 hours ago

Mesa College Promise program gets $25K to help STEM students...

Serena O'Sullivan

Mesa College Promise program gets $25K from Google Fiber to support STEM students

A new grant from Google Fiber could help STEM students in Mesa through a new $25,000 donation, officials said Friday.

16 hours ago

Sponsored Articles


Ignite Digital

How to unlock the power of digital marketing for Phoenix businesses

All businesses around the Valley hopes to maximize their ROI with current customers and secure a greater market share in the digital sphere.

Sanderson Ford...

Sanderson Ford

Sanderson Ford congratulates D-backs’ on drive to great first half of 2023

The Arizona Diamondbacks just completed a red-hot first half of the major league season, and Sanderson Ford wants to send its congratulations to the ballclub.



When most diets fail, re:vitalize makes a difference that shows

Staying healthy and losing weight are things many people in Arizona are conscious of, especially during the summer.

New I-17 drainage system in place at underpasses in north Phoenix