AZ 489
State Route 489 was proposed to run along Alvernon Way from SR 910 (Valencia Rd) to SR 110 (Grant Rd). I'm not really sure what the purpose of this and its proposed sister highway, SR 589, was. Though these proposals would probably explain the weird partial cloverleaf interchanges that ADOT built at Palo Verde Rd/Alvernon Way and at Kino Pkwy/Campbell Ave on I-10 where these proposed routes would've gone.
Length: 8 miles
Proposed: 1987-1999
Historical Proposed Route: AZ 910 in Pima County to AZ 110 in Tucson
Major Junctions: AZ 910, I-10, AZ 810, AZ 110
Page last updated: 4/21/2023