The highway extends north to end at SR 20 in Usk, a small community south of Cusick.

The route originally was established as Secondary State Highway 6B (SSH 6B) in 1937.

[1] After the intersection, the road travels northwest to Sacheen Lake and north to Deer Valley before continuing northbound to Davis Lake.

After Davis Lake, the road intersects Westside Kalispel Road and advances north to its terminus at SR 20 in Usk, located south of Cusick.

[3] North of the US 2 intersection, an estimated 2,200 motorists utilized Lewis Street daily based on annual average daily traffic (AADT) data collected by the Washington State Department of Transportation.