State Route 122 | ||||
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SR 122 is highlighted in red.
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Route information | ||||
Auxiliary route of US 12 | ||||
Defined by RCW 47.17.227 | ||||
Maintained by WSDOT | ||||
Length: | 7.88 mi (12.68 km) | |||
Existed: | 1991 – present | |||
Major junctions | ||||
West end: | US 12 in Silver Creek | |||
East end: | US 12 in Mossyrock | |||
Location | ||||
Counties: | Lewis | |||
Highway system | ||||
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State Route 122 (SR 122) is a 7.88-mile-long (12.68 km) state highway on the north shore of Lake Mayfield in rural Lewis County, located within the U.S. state of Washington. The highway begins at U.S. Route 12 (US 12) in Silver Creek and travels east through Ike Kinswa State Park before turning south over the Cowlitz River to Mossyrock, ending at US 12. SR 122 was established in 1991 on roads built in the 1910s and 1940s and the designation was transferred from SR 142.
SR 122 begins as Silver Creek Road at an intersection with US 12 in the unincorporated community of Silver Creek in rural Lewis County. The highway travels northeast over Silver Creek towards Mayfield Lake, becoming Harmony Road. SR 122 continues east along the north shore of the lake and crosses the Tilton River before passing through Ike Kinswa State Park. The highway continues east to Harmony, where it turns south to cross the Cowlitz River, eventually ending at an intersection with US 12 north of Mossyrock.