Arizona State Route 303
| Bob Stump Memorial Parkway | ||||
Loop 303 highlighted in red | ||||
| Route information | ||||
| Maintained by ADOT | ||||
| Length | 35.25 mi (56.73 km) | |||
| Existed | 1991–present | |||
| Major junctions | ||||
| South end | MC 85 in Goodyear (when finished in 2028) Van Buren Street in Goodyear (current) | |||
| ||||
| North end | I-17 in Phoenix | |||
| Location | ||||
| Country | United States | |||
| State | Arizona | |||
| Highway system | ||||
| ||||
| ||||
Arizona State Route 303 (SR 303) or Loop 303, also known as the Bob Stump Memorial Parkway (formerly the Estrella Freeway), is a freeway that serves the west part of the Phoenix metropolitan area. The freeway, originally a two-lane rural highway, was maintained by Maricopa County until 2004 after approved sales tax when the Arizona Department of Transportation again took control of upgrading the interim road to a freeway.