Washington State Route 397
A map of the Tri-Cities with SR 397 highlighted in red. | ||||
| Route information | ||||
| Auxiliary route of US 395 | ||||
| Maintained by WSDOT | ||||
| Length | 22.31 mi (35.90 km) | |||
| Existed | 1991–present | |||
| Major junctions | ||||
| South end | I-82 / US 395 near Finley | |||
| North end | I-182 / US 12 / US 395 in Pasco | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| Counties | Benton, Franklin | |||
| Highway system | ||||
| ||||
State Route 397 (SR 397) is a state highway in the U.S. state of Washington, serving the Tri-Cities region. It primarily functions as a truck route through industrial areas in Finley, Kennewick, and Pasco, running 22 miles (35 km) between junctions with Interstate 82 (I-82) and I-182. The highway crosses the Columbia River on the Cable Bridge, built in 1978 to replace an earlier bridge.
SR 397 was added to the state highway system in 1991, as a short route connecting Finley to Pasco. Two years later, the highway was extended further south into Finley. The remaining highway between I-82 and Finley in the Horse Heaven Hills was constructed by the state government and Benton County from 2004 to 2008 and was signed as part of SR 397 in 2009.