Washington State Route 906

State Route 906
SR 906 is highlighted in red.
Route information
Auxiliary route of I-90
Maintained by WSDOT
Length	2.65 mi[1] (4.26 km)
Existed	May 11, 1967[2]–present
Major junctions
West end	I-90 in Snoqualmie Pass
East end	I-90 in Hyak
Location
Country	United States
State	Washington
Counties	King, Kittitas
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← SR 904 → SR 970

State Route 906 (SR 906) is a 2.65-mile-long (4.26 km) state highway in the U.S. state of Washington, serving Snoqualmie Pass and its associated ski areas in King and Kittitas counties. The highway travels southeast between two interchanges with Interstate 90 (I-90) in Snoqualmie Pass and Hyak. SR 906 was formed out of segments of the former Sunset Highway that were bypassed by the construction of the controlled-access Interstate Highway over the pass. Between 360 and 2,100 vehicles used the road on an average day in 2012.