SR 347 Improvement Project construction now underway
As Phase 1 paving begins, drivers should plan for lane restrictions
PHOENIX – The pavement rehabilitation portion of the State Route 347 Improvement Project ramps up this week after the long holiday weekend, as the Arizona Department of Transportation begins work on 14 miles of roadway improvements along this busy commuter corridor.
Some initial paving work began on June 29 before the holiday travel began. Paving work resumes the night of July 8.
The first phase of this three-and-a-half-year project will rehabilitate the existing travel lanes and outside shoulders along SR 347 between Interstate 10 and the City of Maricopa. This work will provide a smoother, more comfortable driving surface for motorists while preparing the roadway for the additional improvements, which include widening, interchange construction and intersection improvements. These phases are expected to begin this winter.
During the ongoing paving project, lane restrictions and closures will take place primarily during off-peak hours (weeknights and weekends) in order to minimize disruptions for drivers, especially those commuting in and out of the City of Maricopa. Two travel lanes will remain open in each direction during peak travel times.
The speed limit along the entire 14-mile project corridor is reduced to 55 mph. In the active construction zones, the speed limit is reduced to 45 mph. Drivers are encouraged to plan for extra travel time, slow down, be patient and drive safely. Drivers can stay informed through the SR 347 Improvement Project website and sign up for weekly traffic alerts via the website. They can also stay up-to-date on travel conditions by using AZ511.gov.
The pavement rehabilitation phase is expected to be complete at the end of this year. The SR 347 Improvement Project also includes these upgrades, which are expected to be complete by the end of 2029:
- Adding a new third lane in each direction from I-10 to the City of Maricopa and constructing a 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, Maricopa County and Pinal County on this $396 million improvement project. The project corridor runs through Maricopa and Pinal counties and is primarily located within the Gila River Indian Community.
Real-time highway conditions are available on ADOT’s Arizona Traveler Information site at AZ511.gov, the az511 app (download for Apple or Android devices) or by calling 511. Drivers can set their own alerts on the AZ511 app in order to be notified when there is an incident, lane restriction or closure.
Drivers on State Route 347 should plan for lane restrictions July 8-12
No work scheduled during Independence Day weekend; work resumes July 8
The Arizona Department of Transportation advises drivers to plan for lane restrictions throughout the State Route 347 Improvement Project corridor next week as pavement rehabilitation resumes after the long holiday weekend.
No construction work is scheduled between the morning of Thursday, July 2, and the evening of Tuesday, July 7, in observance of the Independence Day holiday. Work resumes the evening of Wednesday, July 8.
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:
Northbound
- Northbound SR 347 will be narrowed to one lane from Riggs Road to Maricopa. Road nightly from 8 p.m. to 5 a.m., beginning the evening of Wednesday, July 8, and ending the morning of Friday, July 10, for asphalt paving.
Southbound
- Southbound SR 347 will be narrowed to one lane from Maricopa Road to Riggs Road from 8 p.m. Friday, July 10, to 5 a.m. Sunday, July 12, for asphalt paving.
Project Lookahead
During Phase 1 of the SR 347 Improvement Project, drivers should plan for lane restrictions during the overnight hours and also during select weekends.
Daytime and overnight lane restrictions will be in place the weekends of July 11, 18 and 25. More detailed information will be provided as the construction schedule is finalized.
Real-time highway conditions are available on ADOT’s Arizona Traveler Information site at AZ511.gov, the az511 app (download for Apple or Android devices) or by calling 511.
Drivers can set their own alerts on the AZ511 app in order to be notified when there is an incident, lane restriction or closure.
Drivers traveling on State Route 347 should plan for lane restrictions July 9-17
Drivers traveling on State Route 347 should plan for lane restrictions July 9-17
Drivers should plan for extra travel time through the project corridor during overnight and weekend lane restrictions
The Arizona Department of Transportation advises drivers to plan for lane restrictions throughout the State Route 347 Improvement Project corridor July 9-17 as paving work progresses.
ADOT advises drivers to use caution and be prepared to slow down, follow the posted speed limit and merge safely when approaching and traveling through all work zones. Drivers should allow for extra travel time and watch for construction personnel and equipment.
Northbound
- Left turns may be intermittently restricted at Maricopa Road and SR 347 on Friday, July 10 and Saturday, July 11.
- Northbound SR 347 will be narrowed to one lane from Riggs Road to Interstate 10 from 8 p.m. Thursday, July 9, to 5 a.m. Friday, July 10, for asphalt paving.
- Weekend Work Alert - Northbound SR 347 will be narrowed to one lane from Riggs Road to I-10 from 8 p.m. Friday, July 10, to 4 a.m. Monday, July 13, for asphalt paving.
- Northbound SR 347 will be narrowed to one lane from Riggs Road to I-10 from 8 p.m. Wednesday, July 15, to 4 a.m. Thursday, July 16, for asphalt paving.
- Northbound SR 347 will be narrowed to one lane from Riggs Road to I-10 from 8 p.m. Thursday, July 16, to 4 a.m. Friday, July 17, for asphalt paving.
Southbound
- Weekend Work Alert - Southbound SR 347 will be narrowed to one lane from I-10 to Riggs Road from 8 p.m. Friday, July 10, to 5 a.m. Sunday, July 12, for asphalt paving.
- Southbound SR 347 will be narrowed to one lane from I-10 to Riggs Road from 8 p.m. Tuesday, July 14, to 5 a.m. Wednesday, July 15, for asphalt paving.
Project Lookahead
During Phase 1 of the SR 347 Improvement Project, drivers should plan for lane restrictions during the overnight hours and also during some weekends.
Daytime and overnight lane restrictions will also be in place the weekends of July 18 and 25. More detailed information will be provided as the construction schedule is finalized.
To sign up for project updates and traffic alerts to stay in the know, please visit the project website at azdot.gov/sr347.
