The Arizona Department of Transportation is making improvements to Interstate 10 in Tucson. The Interstate 10: Kino to Country Club project is the first project to come out of the Interstate 10 and State Route 210 Transportation Design Concept Report (DCR) that was completed in 2020.
The Arizona Department of Transportation began a project in April 2025 to install and connect Intelligent Transportation System (ITS) devices to the high-speed fiber optics cable along Interstate 19 starting at milepost 2, near the Nogales Port of Entry to just south of Interstate 10
The Arizona Department of Transportation is working on a pavement rehabilitation project, on State Route 289 from milepost 0 (Ruby Road) to milepost 11 (Peña Blanca Lake parking lot) approximately seven miles north of the city of Nogales. Construction began in October 2025.
The Arizona Department of Transportation is performing a bridge repair project on State Route 80 in St. David, spanning the San Pedro River. The work will consist of removing the existing San Pedro River Bridge and replacing it with a continuous three span welded steel plate girder bridge. Additional work includes replacing guardrail and pavement markings.
The Arizona Department of Transportation began a reconstruction project in October 2025 on State Route 83 from milepost 31 (Black Oak Drive) to milepost 29 (Lower Elgin Road) in Sonoita.
The Arizona Department of Transportation began a pavement preservation project on State Route 187 on the Gila River Indian Community in October 2025. These improvements include pavement preservation, shoulder widening and adding new turn lanes. These improvements will reduce congestion and improve mobility.
The Arizona Department of Transportation anticipates beginning a project to install High Intensity Activated Crosswalk(HAWK) signals across State Route 387 (Pinal Avenue) at Viola Street in the city of Casa Grande in early 2026.
The Arizona Department of Transportation is completing a pavement rehabilitation project located on State Route 90 between the border patrol station and Moson Road (mileposts 304-325) in Cochise County.
