2nd Avenue crosses over Salmon Creek before it empties into the Okanogan River at Alma Park.

[1] The roadway turns east onto 4th Avenue and back north onto Main Street, passing the local post office, before intersecting Omak Avenue, signed as SR 155 Spur.

[1] Main Street continues north and passes the Omak campus of Wenatchee Valley College,[3] before turning east onto Riverside Drive and ending at an intersection with SR 20 and US 97.

In 2011, WSDOT calculated that between 4,200 and 13,000 vehicles per day used the highway, mostly in Downtown Omak.

[11][12] Beginning in 1962, a bypass of Omak was constructed on the east side of the Okanogan River,[13][14][15] and US 97 was re-routed onto it in 1967.