State Route 526 | ||||
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Boeing Freeway | ||||
Map of Snohomish County in western Washington with SR 526 is highlighted in red
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Route information | ||||
Auxiliary route of I‑5 | ||||
Defined by RCW 47.17.740 | ||||
Maintained by WSDOT | ||||
Length: | 4.52 mi (7.27 km) | |||
Existed: | 1964 – present | |||
Major junctions | ||||
West end: | SR 525 in Mukilteo | |||
SR 525 Spur in Mukilteo |
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East end: | I‑5 / SR 99 / SR 527 in Everett | |||
Location | ||||
Counties: | Snohomish | |||
Highway system | ||||
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State Route 526 (SR 526) is a 4.52-mile-long (7.27 km) state highway in the U.S. state of Washington, located in Snohomish County. It has been named the Boeing Freeway for the Boeing Everett Factory, which the four-lane freeway serves. SR 526 travels east–west from SR 525 in Mukilteo to Interstate 5 (I-5), SR 99, and SR 527 in Everett. The highway serves as the main route to the Boeing factory as well as the city of Mukilteo and the ferry service to Whidbey Island.
SR 526 begins as 84th Street Southwest at a signalized intersection with SR 525, named the Mukilteo Speedway, at Nelsons Corner in Mukilteo. The highway travels east through a residential neighborhood, heading towards an intersection with Paine Field Boulevard, signed as SR 525 Spur, at the Future of Flight Aviation Center and Paine Field. SR 526 turns northeast as the four-lane continuation of Paine Field Boulevard, curving north around the north–south runway of Paine Field and south of Japanese Gulch, into the city of Everett. The highway becomes the controlled-access Boeing Freeway and passes under the Boeing Access Road, a taxiway that connects the Boeing Everett Factory to Paine Field. SR 526 continues east and intersects Airport Road in a diamond interchange and Seaway Boulevard in a semi-directional T interchange, the main access roads to Paine Field and the Boeing factory, respectively, before widening to six lanes as it approaches its eastern terminus, an interchange with I-5. The freeway travels through a diamond interchange with Evergreen Way, located east of a pedestrian bridge over SR 526 and south of Cascade High School, where traffic heading towards I-5 northbound on a left directional exit and traffic heading towards I-5 southbound splits into two lanes, a normal lane and a high-occupancy vehicle lane (HOV lane). SR 526 continues east, briefly paralleling the Interurban Trail, before the freeway travels towards I-5 on flyover ramps and the highway terminates at the northern terminus of SR 99 and the northern terminus of SR 527.