 State Route 526 | ||||
|---|---|---|---|---|
| Boeing Freeway | ||||
 A map of Snohomish County with SR 526 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-5 | ||||
| Maintained by WSDOT | ||||
| Length | 4.52 mi[1] (7.27 km) | |||
| Existed | 1964[2]–present | |||
| Tourist routes |  Cascade Loop Scenic Byway | |||
| Major junctions | ||||
| West end |  SR 525 in Mukilteo | |||
| East end |    I-5 / SR 99 / SR 527 in Everett | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| County | Snohomish | |||
| Highway system | ||||
| ||||
State Route 526 (SR 526), also known as the Boeing Freeway, is a state highway in Snohomish County, Washington, United States. The east–west highway travels 4.52 miles (7.27 km) and connects SR 525 in Mukilteo to Interstate 5 (I-5) in southern Everett. The highway serves the Boeing Everett Factory and Paine Field; it also serves as a main route to the city of Mukilteo and the state-run ferry to Whidbey Island.
SR 526 was established during the 1964 state highway renumbering as the successor to Secondary State Highway 1I (SSH 1I) between Mukilteo and Everett. Its original route followed a wagon road traveling along Possession Sound that opened in 1914; it was moved onto its current route in 1967 after Boeing announced its intention to build a factory in Everett for its 747 airliner.
- ^ Finch, Mark, ed. (March 4, 2014). State Highway Log: Planning Report 2013, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 1659–1662. Retrieved May 28, 2014.
- ^ "47.17.740: State route No. 526". Revised Code of Washington. Washington State Legislature. 1970. Retrieved May 28, 2014.