State Route 347 is a highway that mostly serves the town of Maricopa. It can also be used as a shortcut between I-10 and I-8.
Despite being numbered as 347, there is no SR 47 that would serve as the parent to this route. Instead, SR 347 is taken from the Federal Aid secondary route number that was assigned by the FHWA. SR 143 and SR 238 are also numbered weirdly without a parent route, but have different reasons for their numbering.
Page last updated: 5/26/2022