Lake City Way (Seattle)

State Route 522
SR 522 is highlighted in red.
Route information
Auxiliary route of I‑5
Defined by RCW 47.17.725
Maintained by WSDOT
Length:	24.64 mi (39.65 km)
Existed:	1964 – present
Major junctions
West end:	I‑5 in Seattle
	SR 104 in Lake Forest Park I‑405 in Bothell SR 9 near Woodinville
East end:	US 2 in Monroe
Location
Counties:	King, Snohomish
Highway system
State highways in Washington Interstate US State Scenic Former PSH 1964 renumbering Former ← SR 520 SR 523 →

State Route 522 (SR 522) is a state highway in the U.S. state of Washington, serving the Seattle metropolitan area. The 24.64-mile-long (39.65 km) highway connects the city of Seattle to the northeastern suburbs of Kenmore, Bothell, Woodinville, and Monroe. Its western half is primarily an arterial street, named Lake City Way and Bothell Way, following the northern shore of Lake Washington; the eastern half is a grade-separated freeway that runs between Woodinville and Monroe. SR 522 connects several of the metropolitan area's major highways, including Interstate 5 (I-5), I-405, SR 9, and U.S. Route 2 (US 2).

The present day route of SR 522 was built in stages between 1907 and 1965, beginning with the "Red Brick Road" from Seattle to Bothell, then part of the Pacific Highway and later US 99. The road later became a branch of Primary State Highway 2 (PSH 2) in 1937, and was extended east to Redmond and North Bend. A branch of the Stevens Pass Highway was built to connect PSH 2 in Bothell and Monroe in 1965, and was incorporated into SR 202 after it was designated in 1964. The Bothell–Monroe highway was re-designated as part of SR 522 in 1970, leaving SR 202 on the Bothell–North Bend highway.