Arizona State Route 303

State Route 303
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
From	MC 85 in Goodyear (Planned)
	I-10 in Goodyear; Northern Parkway in Glendale; US 60 in Surprise;
To	I-17 in Phoenix
Location
Country	United States
State	Arizona
Highway system
	Arizona State Highway System; Interstate; US; State; Proposed; Former;

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 when the Arizona Department of Transportation again took control of upgrading the interim road to a freeway.^[2]

^ Roadway Inventory Management Section, Multimodal Planning Division (December 31, 2013). "2013 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved January 16, 2016.
^ "Loop 303". AAroads. June 6, 2020. Retrieved January 30, 2022.

[highway_log-1] Roadway Inventory Management Section, Multimodal Planning Division (December 31, 2013). "2013 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved January 16, 2016.

[L303History-2] "Loop 303". AAroads. June 6, 2020. Retrieved January 30, 2022.

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[2]