Washington State Route 527

State Route 527 marker
State Route 527
Bothell–Everett Highway
Map
A map of southwest Snohomish County with SR 527 highlighted in red
Route information
Auxiliary route of I-5
Maintained by WSDOT
Length9.29 mi[1] (14.95 km)
Existed1964–present
Major junctions
South end I-405 in Bothell
Major intersections
North end I-5 / SR 99 / SR 526 in Everett
Location
CountryUnited States
StateWashington
CountySnohomish
Highway system
SR 526 SR 528

State Route 527 (SR 527, also known as the Bothell–Everett Highway) is a state highway in Snohomish County, Washington. It travels 9 miles (14 km) from north to south, connecting the northern Seattle suburbs of Bothell, Mill Creek, and Everett. The highway intersects Interstate 405 (I-405) at its southern terminus, SR 96 in northern Mill Creek, and I-5 at an interchange with SR 99 and SR 526 in Everett.

The Bothell–Everett Highway was built in the 1910s as part of the intercity Pacific Highway and briefly formed part of U.S. Route 99 (US 99) in 1926. The following year, US 99 was moved west to a new highway that would later become modern-day SR 99. The old route to the east was signed by the state as Secondary State Highway 2A (SSH 2A) from 1937 to 1943 and SSH 2J from 1957 to 1964, when it was renumbered as SR 527.

Since its opening, suburban development in Mill Creek and northern Bothell has contributed to traffic congestion on stretches of SR 527. During the 1990s and early 2000s, the state government funded several projects that widened the highway to its present four-lane configuration with sidewalks, bus pullouts, and bicycle lanes. The southernmost 2.5 miles (4.0 km) of the highway, from SR 522 to I-405, was transferred to the Bothell city government in 2011 and decommissioned from the state highway system.

  1. ^ Multimodal Planning Division (January 3, 2018). State Highway Log Planning Report 2017, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 1582–1590. Retrieved August 27, 2018.