A newly approved study will examine potential capacity and other upgrades to Interstate 10 between Phoenix and Casa Grande.
The study will be led by the Maricopa Association of Governments (MAG), in partnership with Gila River Indian Community (GRIC) and Arizona Department of Transportation (ADOT). The I-10 evaluation is expected to take about 18 months to complete, including an expected cost and phasing strategy.
Recently, the Gila River Indian Community Council agreed to participate in the study, which will establish an overall master plan for the corridor.
“The Gila River Indian Community is very appreciative of MAG for spearheading this effort, and we look forward to being part of the team that completes this study,” said GRIC Gov. Stephen R. Lewis. “The Community believes this study will help ensure the safety of the Community’s members and residents of the surrounding municipalities as they travel the I-10 corridor and promote development both on and off the Gila River Indian Reservation.”
The goal is to identify major elements that will need to be improved or replaced and determine how to provide the necessary capacity to meet current and future travel demand. The bridge across the Gila River and the interchange at Casa Blanca Road are two examples of existing structures that may have to be replaced.
“As ADOT has made significant investments through the years to increase I-10 capacity between the state’s two largest metropolitan areas, our plans for the 23 miles across the Gila River Indian Community have always recognized the sovereign tribal authority over this area,” said ADOT Director John Halikowski.
MAG has allocated about $65.5 million for improvements to the portion of I-10 in Maricopa County.
The I-10 study will be coordinated with a study being conducted by MAG in partnership with GRIC for State Route 347, which connects the City of Maricopa to I-10 across the Gila River Indian Community. MAG serves the metropolitan Phoenix area, including the City of Maricopa.
MAG Chair Gail Barney, mayor of Queen Creek, said GRIC input would be an important part of the I-10 study. The economic development activities being pursued by the Wild Horse Pass Development Authority in the northern section of GRIC will be considered in the study.