 The highway's oldest were upgraded to modern freeway standards from spring 2000 to summer 2001 for $17.6 million.In addition to repaving the highway, ODOT replaced the center guardrail with a Jersey barrier, replaced curbs with wide shoulders, lengthened on- and off-ramps, and installed new overhead guide signage.West Side communities have seen significantly increased commercial development since the highway's completion, attributed in part to decreased congestion on surface streets.