SR 347 Corridor Projects
SR 347 Corridor Projects
Contents
ADOT has several planned improvement projects on State Route 347 between Interstate 10 and State Route 238 in the City of Maricopa. This segment of SR 347 is located primarily within the Gila River Indian Community.
SR 347 Widening, I-10 to city of Maricopa
Project Elements: Adds one lane in each direction on SR 347 from I-10 to the northern limits of the City of Maricopa and makes intersection improvements for traffic flow and safety.
Anticipated Schedule: This project is currently in final design and construction is expected to begin in late 2026.
More info: https://azdot.gov/projects/central-district-projects/sr-347-corridor-widening-i-10-city-maricopa
Riggs Rd Traffic Interchange at SR 347
Project Elements: Constructs a new interchange to fully separate traffic on SR 347 and Riggs Road to improve traffic flow and safety.
Anticipated Schedule: This project is currently in final design and construction is expected to begin in late 2026.
More info: https://azdot.gov/planning/transportation-studies/riggs-road-traffic-interchange-sr-347
Projects Area Map
Click map to enlarge.
Casa Blanca Road and Mammoth Way Intersections
Project Elements: Modify each intersection layout to improve traffic flow and safety. The intersection projects are being designed as part of the SR 347 widening project.
Anticipated Schedule: This project is currently in final design and construction is expected to begin in late 2026.
More info: https://azdot.gov/projects/central-district-projects/sr-347-corridor-widening-i-10-city-maricopa
SR 347 Pavement Preservation
Project Elements: Repave SR 347 between I-10 (MP 189.3) and Lakeview Drive (MP 175.7) at the northern limits of the City of Maricopa to create a smoother drive and extend the life of the roadway.
Anticipated Schedule: This project is currently in final design and construction is expected to begin in late 2026.
SR 347 Road Safety Assessment
As the primary route from the city of Maricopa to the Phoenix area, State Route 347 (SR 347) has become a highly traveled corridor. In spring 2023, ADOT completed a safety study on SR 347 between I-10 and the northern city limits of Maricopa. The Road Safety Assessment (RSA) identified potential safety issues related to roadway traffic and evaluated possible ways to improve safety for drivers. Interim improvements based on the assessment were completed in fall 2024.
More info: http://azdot.gov/SR347/RSA
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