Route Description
SR 22 begins at exit 50 on the concurrent I-82 / US 12 as a hybrid diamond–partial cloverleaf interchange The route heads south through farmland towards the town of Toppenish in Yakima County, which is also part of the Yakama Indian Reservation. While in Toppenish, the highway passes over double track belonging to BNSF Railway. On the south end of town, SR 22 intersects US 97, turning southeast as US 97 heads south. Traveling southeast, SR 22 passes through more farmland, passing the small census-designated place of Satus and an interchange with SR 223. The city of Mabton is located just north of the highway, and is accessible by turning onto SR 241. The highway leaves the reservation and turns southwest after passing the Sunnyside Wildlife Recreation Area, and crosses the Yakima–Benton county line, continuing through farmland until approaching the outskirts of Prosser, the county seat of Benton County. SR 22 serves as a bypass of Prosser, turning north until intersecting Wine Country Road and the Desert Wind Winery on the east side of Prosser before turning back southwest on Wine Country Road and terminating at a folded diamond interchange, exit 82, on I–82.
Every year the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2009, WSDOT calculated that as few as 1,100 cars traveled through the intersection with Bus Road just west of the Sunnyside Wildlife Recreation Area, and as many as 10,000 cars passed through the town of Toppenish before the interchange with US 97.
The segment of highway between its western terminus at I-82 and US 97 is listed on both the WSDOT List of Highways of Statewide Significance, which marks this portion of the highway as a critical to connecting major communities in the state, and the National Highway System, a system of roads that are important to the nation's economy, defense and mobility.
Read more about this topic: Washington State Route 22
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