Washington State Route 224

State Route 224 marker
State Route 224
Route information
Auxiliary route of SR 22
Maintained by WSDOT
Length10.15 mi[1] (16.33 km)
Existed1965–present
Major junctions
West end I-82 / US 12 in Benton City
East end SR 240 in Richland
Location
CountryUnited States
StateWashington
CountiesBenton
Highway system
SR 223 SR 225

State Route 224 (SR 224) is a 10.15-mile (16.33 km) long state highway located entirely in Benton County, Washington, United States. The highway serves to connect SR 225 to Interstate 82 (I-82) and U.S. Route 12 (US 12), and to link Benton City to West Richland and Richland. Before the 1964 state highway renumbering the highway was numbered Secondary State Highway 3R. SR 224 is a lightly traveled rural highway except through Richland, where an average of 16,000 cars traveled the highway daily in 2009. The Washington State Department of Transportation (WSDOT) rebuilt its southern terminus as a roundabout in 2016, as part of a project to improve traffic congestion near the Red Mountain AVA.

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