North of the interchange,  splits off and travels north towards Reardan, being  longer than SR 23. The highway continues northwest into Harrington, intersecting Coal Creek Road serving Harrington High School and becoming Sherlock Street. The road crosses a BNSF rail line and turns north, becoming 3rd Street until the route ends at .
North of the interchange,  branches off and heads north towards Reardan, being longer than SR 23. The highway continues northwest into Harrington, crossing Coal Creek Road serving Harrington High School and turning into Sherlock Street. The road crosses a BNSF rail line and turns north, becoming Third Street until the route ends at .