Primary State Highway 6 (Washington)

Primary State Highway 6
Pend Oreille Highway, Newport Highway
PSH 6 highlighted in red
Route information
Maintained by Washington DoH
Length	114.79 mi[1] (184.74 km)
Existed	1937–1964
History	Originally State Road 23 in 1915, State Road 6 in 1923, US 195 in 1926, US 2 in 1948
Major junctions
South end	PSH 3 / US 2 / US 395 in Spokane
Major intersections	SSH 6-B near Diamond Lake US 2 in Newport SSH 6-B in Usk SSH 6-A in Tiger
North end	Highway 6 at Canada–US border near Metaline Falls
Location
Country	United States
State	Washington
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← PSH 5 → PSH 7

Primary State Highway 6 (PSH 6) was a Washington state highway in the older primary and secondary system that existed from 1937 until 1964 in Spokane and Pend Oreille counties. The road ran from an intersection with PSH 3, U.S. Route 2 (US 2, formerly US 195 and US 10 Alternate) and US 395 in Spokane north to British Columbia Highway 6 (BC 6) at the Canada–US border near Metaline Falls, passing its branch route and two secondary routes.

PSH 6 was originally named State Road 23 in 1915 and ran from Spokane to Newport until it was extended to the Canada–US border in 1921. State Road 23 was renumbered to State Road 6 and later co-signed with US 195 from Spokane to Newport in 1926. In 1937, the primary and secondary system was created, renumbering State Road 6 to PSH 6 and creating two branch routes and two secondary routes, Secondary State Highway 6A (SSH 6A) and SSH 6B. US 195 was later replaced with US 2 when it was expanded west in 1946 and later was decommissioned in 1964, when a new system, the sign routes (later state routes) were introduced. PSH 6 was divided into US 2 from Spokane to Newport and State Route 31 (SR 31) from Newport to Canada as part of the new system.