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Washington State Route 290

State Route 290 marker

State Route 290
Hamilton Street, Trent Avenue
Route information
Defined by RCW 47.17.520
Maintained by WSDOT
Length: 18.38 mi (29.58 km)
Existed: 1964 – present
Major junctions
West end: I‑90 in Spokane
  SR 27 in Spokane Valley
East end: SH 53 at Idaho state border
Location
Counties: Spokane
Highway system
SR 285 SR 291

State Route 290 Spur
Location: Spokane, Washington
Length: 0.67 mi (1.08 km)
Existed: 1970–2005

State Route 290 marker

State Route 290 (SR 290), named Hamilton Street and Trent Avenue, is an 18.38-mile (29.58 km) long state highway serving Spokane County in the U.S. state of Washington. SR 290 travels parallel to a Union Pacific railroad from Interstate 90 (I-90) in Spokane through Millwood and across the Spokane River three times towards Spokane Valley, where the highway intersects SR 27. From Spokane Valley, the roadway continues to the Idaho state border, where it becomes Idaho State Highway 53.

The current route of SR 290 was formerly county roads between 1901 and 1937 when it became Secondary State Highway 2H (SSH 2H). The highway ran from U.S. Route 2 (US 2) and US 395 in Downtown Spokane to Idaho until a 1964 renumbering of state highways, which re-designated SSH 2H as SR 290. A short spur route connecting the main highway to I-90 was also added during the renumbering, but SR 290 was realigned to replace the route in 2005.


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