Drivers on State Route 347 should plan for overnight lane restrictions later this week and early next week as improvement project begins
The Arizona Department of Transportation advises drivers to plan for overnight lane restrictions throughout the State Route 347 Improvement Project corridor later this week and early next week as work zone set-up and paving work begins.
Drivers should plan for extra travel time, drive safely, follow the posted speed limits throughout the entire project corridor and in the work zones, and watch for construction personnel and equipment while the following restrictions are in place:
Southbound
- Southbound SR 347 will be narrowed to one lane from Interstate 10 to Maricopa Road from 8 p.m. Thursday, June 25, to 4 a.m. Friday, June 26, for pre-construction equipment staging.
- Southbound SR 347 will be narrowed to one lane from Maricopa Road to Riggs Road from 8 p.m. Friday, June 26, to 1 a.m. Saturday, June 27, for pre-construction equipment staging.
- Southbound SR 347 will be narrowed to one lane from Interstate 10 to Maricopa Road from 8 p.m. Monday, June 29, to 5 a.m. Tuesday, June 30, for asphalt paving.
- Southbound SR 347 will be narrowed to one lane from Maricopa Road to Riggs Road from 8 p.m. Tuesday, June 30, to 5 a.m. Wednesday, July 1, for asphalt paving.
- Southbound SR 347 will be narrowed to one lane from Maricopa Road to Riggs Road from 8 p.m. Wednesday, July 1, to 5 a.m. Thursday, July 2, for asphalt paving.
Northbound
- Northbound SR 347 will be narrowed to one lane from Riggs Road to Maricopa Road from 8 p.m. Friday, June 26, to 5 a.m. Saturday, June 27, for pre-construction equipment staging.
- Northbound SR 347 will be narrowed to one lane from Riggs Road to Maricopa Road from 8 p.m. Wednesday, July 1, to 4 a.m. Thursday, July 2, for asphalt paving.
Traffic Restrictions Map
Project Lookahead
As Phase 1 of the SR 347 Improvement Project gets underway, drivers should plan for lane restrictions during the weeknight overnight hours and also during select weekends.
Weekend lane restrictions will be in place the weekends of July 10, 17 and 24. More detailed information will be provided as the construction schedule is finalized.
For real-time highway conditions statewide, visit ADOT's Traveler Information Site at www.az511.gov, download the AZ511 app or call 511.
Information from June 17, 2026 Open House
Open House Documents and Survey
- Open House Presentation
- Open House Fact Sheet (English PDF)
- Open House Fact Sheet (Spanish PDF)
- Attendee Survey
Phase 1 of construction to begin this summer
PHOENIX – The Arizona Department of Transportation and its project partners will hold an in-person open house on June 17 to inform the public about the upcoming State Route 347 Improvement Project and what to expect during construction. Work is scheduled to begin this summer and will focus on pavement rehabilitation during the project’s first phase.
The project will improve a 14-mile section of SR 347 between Interstate 10 and the City of Maricopa. This project corridor runs through Maricopa and Pinal counties and is primarily located within the Gila River Indian Community.
The open house is scheduled from 5:30 to 7:30 p.m. on June 17 at City Hall in the City of Maricopa, located at 39700 West Civic Center Plaza, Maricopa. The same presentation will be shared at 5:45 p.m. and again at 6:45 p.m.
For those not able to attend the open house in person, the City of Maricopa will offer the ability to live stream the two presentations from these two links:
- YouTube: https://www.youtube.com/@myMaricopa20
- Facebook: https://www.facebook.com/CityOfMaricopaAZ
Open House Documents
The first phase of this three-and-a-half-year project will be to rehabilitate the existing travel lanes and shoulders along SR 347 between I-10 and the City of Maricopa. This work will provide a smoother, more comfortable driving surface for motorists while preparing the roadway for widening and interchange construction, which is expected to begin this winter.
Open house attendees will learn about the timeline for this initial phase of construction beginning this summer and how ADOT plans to keep traffic flowing during peak travel times. Work is planned mostly at night and on the weekends during the first phase of this project to minimize disruptions.
The SR 347 Improvement Project also includes these upgrades:
- Adding a new third lane in each direction from I-10 to the City of Maricopa and constructing concrete median barrier to physically separate the directions of travel
- Constructing new grade-separated interchanges at Riggs Road and Mammoth Way
- Adding turn lanes, acceleration and deceleration lanes, and signal improvements at Casa Blanca Road and Maricopa Road
ADOT is partnering with the City of Maricopa, Gila River Indian Community, Maricopa Association of Governments and Pinal County on this $396 million improvement project.
