The purpose of this study is to identify and evaluate alternative routes for the proposed Loop 303 extension between Interstate 10 and the proposed SR 30.
The proposed SR 30 would be located south of I-10, north of the Salt and Gila rivers, and would connect the proposed South Mountain Freeway with the proposed Loop 303. Two studies are currently underway to determine the alignment of the proposed freeway.
In 2004, Maricopa County voters approved Proposition 400, which authorized the extension of an existing half-cent sales tax to fund transportation improvements defined in the Regional Transportation Plan. This proposed extension of Loop 303 was identified as an element of the Regional Transportation Plan.