State Route 308 | ||||
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SR 308 is highlighted in red.
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Route information | ||||
Auxiliary route of SR 3 | ||||
Defined by RCW 47.17.567 | ||||
Maintained by WSDOT | ||||
Length | 3.42 mi (5.50 km) | |||
Existed | 1971 – present | |||
Major junctions | ||||
West end | SR 3 in Bangor | |||
East end | Naval Undersea Warfare Center in Keyport | |||
Location | ||||
Counties | Kitsap | |||
Highway system | ||||
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State Route 308 (SR 308) is a 3.42-mile-long (5.50 km) state highway in the U.S. state of Washington, serving the community of Keyport in Kitsap County. The highway travels generally east from an interchange with SR 3 east of Naval Base Kitsap at Bangor to the main entrance of the Naval Undersea Warfare Center in Keyport. SR 308 was codified as the Keyport branch of State Road 21 in 1929 and continued as the Keyport branch of Primary State Highway 21 (PSH 21) in 1937. During the 1964 highway renumbering, the branch became a section of SR 303, which ran from Bremerton to Bangor and had a spur route serving Keyport. SR 308 was established in 1971 along the old route of SR 303 Spur and was extended in 1991 to the SR 3 freeway after SR 303 was re-routed onto a new freeway in Silverdale.
SR 308 begins as Luoto Road at a diamond interchange with SR 3 east of Naval Base Kitsap at Bangor. The highway travels east through wooded land, intersecting several minor roads until the roadway turns northeast and crosses over Liberty Bay into the unincorporated community of Keyport. Within Keyport, SR 308 passes the Naval Undersea Museum and serves as the main thoroughfare through the community before it ends at the main entrance to the Naval Undersea Warfare Center, continuing east as Strom Avenue into the base.