Washington State Route 225

State Route 225
Route information
Auxiliary route of SR 22
Maintained by WSDOT
Length	11.32 mi[1] (18.22 km)
Existed	1991–present
Major junctions
South end	SR 224 in Kiona
North end	SR 240 at Horn Rapids Dam
Location
Country	United States
State	Washington
County	Benton
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← SR 224 → SR 231

State Route 225 (SR 225) is an 11.32-mile (18.22 km) long two-lane state highway located entirely in Benton County, Washington, United States. The highway travels over the Benton City – Kiona Bridge, which is listed on the Washington Heritage Register and National Register of Historic Places, over the Yakima River. After turning through Benton City, the highway parallels the river for the remainder of the route. Several different proposals have been introduced to alleviate traffic flow issues at the SR 224 / SR 225 interchange, which was ultimately replaced with a roundabout in 2016.