Heavy machinery, barricades, dust filling the air, and workers outfitted in neon safety vests and hardhats are all a sight for sore eyes if you live in the town of Sierra Vista. For years, residents have been patiently waiting, and at times- impatiently waiting, for State Route 90 to receive a much-needed facelift. kAmsC:G:?8 E@ D@>6H96C6 =:<6 %2C86E @C uCJVD 3642>6 2 C@FE:?6 2??@J2?46[ 2D E96 4@?5:E:@? @7 E96 A2G6>6?E 76=E >@C6 =:<6 @77\C@25:?8 :? E96 56D6CE E92? :E 5:5 4CF:D:?8 :?