Washington State Route 397

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State Route 397
Auxiliary route of US 395
Defined by RCW 47.17.577, maintained by WSDOT
Length: 11.23 mi[1] (18.07 km)
Formed: 1992
South end: Piert Road in Finley
North end: I-182/US 12/US 395 in Pasco
State highways in Washington
< US 395 SR 401 >
Lists: current - Interstates - 1937-70 - 1964 renumbering

State Route 397, or Highway 397, is a minor highway servicing the Tri-Cities of southeastern Washington. The highway provides one of only three paths across the Columbia River from the southern cities (Richland and Kennewick) to Pasco via the Cable Bridge, along with Interstate 182 and U.S. Route 395. The highway begins at US 395, at the onramps to I-182 near a cemetery in Pasco. As the highway heads south, it usurps Oregon Avenue, Ainsworth Street, the Cable Bridge (officially the Ed Hendler Bridge), Gum Street, and Chemical Drive. The highway continues on as Chemical Drive into Finley, Washington to South Piert Road.

The Washington State Department of Transportation and Benton County are constructing the two-lane I-82 to SR 397 Intertie through the Horse Heaven Hills, between I-82 at exit 114 and SR 397 near its south end. Construction is expected to be completed in late 2008, at which time the bypass may become a state highway.[2]

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