Washington State Route 3

State Route 3
SR 3 highlighted in red
Route information
Maintained by WSDOT
Length	59.81 mi[1] (96.25 km)
Existed	1964[2]–present
Major junctions
South end	US 101 near Shelton
Major intersections	SR 302 in Allyn-Grapeview SR 16 in Gorst SR 304 in Navy Yard City SR 303 in Silverdale SR 305 in Poulsbo
North end	SR 104 near Port Gamble
Location
Country	United States
State	Washington
Counties	Mason, Kitsap
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← US 2 → SR 4

State Route 3 (SR 3) is a 59.81-mile-long (96.25 km) state highway in the U.S. state of Washington, serving the Kitsap Peninsula in Mason and Kitsap counties. The highway begins at U.S. Route 101 (US 101) south of Shelton and travels northeast onto the Kitsap Peninsula through Belfair to Gorst, where it intersects SR 16 and begins its freeway. SR 3 travels west of Bremerton, Silverdale and Poulsbo before it terminates at the eastern end of the Hood Canal Bridge, signed as SR 104. The highway is designated as a Strategic Highway Network (STRAHNET) corridor under the National Highway System as the main thoroughfare connecting both parts of Naval Base Kitsap and is also part of the Highways of Statewide Significance program.

SR 3 was established during the 1964 highway renumbering and codified in 1970 as the successor to Secondary State Highway 14 (SSH 14) from Shelton to Belfair, Primary State Highway 14 (PSH 14) from Belfair to Gorst, and PSH 21 from Gorst to the Hood Canal Bridge. PSH 21 was previously part of State Road 21 from 1915 to 1937, while PSH 14 was part of State Road 14 and the Navy Yard Highway from 1919 to 1937. The present SR 3 freeway was opened in 1968 in the Bremerton area and was extended north to Silverdale in 1973, to Bangor in 1981, and to Poulsbo in 1983.