12th St and Carefree Highway Drainage Improvement
Project #: MW2506
Project Description
The Maricopa County Department of Transportation (MCDOT) will install grouted riprap (a blend of rock material and concrete) and perform other work to reduce stormwater erosion effects on 12th street just south of Carefree Highway. The riprap will ease the flow of water to prevent erosion impacts. Drivers should plan for temporary daytime lane closures and possible delays in the immediate work zone. Flagging operations will be in place to help direct traffic while work is underway. Construction begins on Monday, May 18 and continues through late June 2026.
The project includes:
- Installing grouted riprap.
- Replacing stormwater pipes as needed.
- Grading the area.
- Cleaning up the work zone and other miscellaneous work.
Please allow for extra time for travel as there can be delays during construction. Please watch for work crews, obey all traffic control signs and slow down in the work zone.
Work Schedule:
Where: On 12th Street, south of Carefree Highway.
When: Monday, May 18 through late June 2026.
Monday through Friday, 6 a.m. to 4 p.m.
No weekend or holiday work is anticipated.
For information about Title VI, please visit our information page.
Project Info
Scoping Schedule:
Design Schedule:
Construction Schedule: 5/2026
Project Phase
Current Phase: Construction