The northern terminus is located at an intersection with SR 53 running concurrently with 6th Street. At its northern terminus, SR 251 reverts to Ardmore Avenue, which picks up SR 53.
The northern endpoint of SR 251 is found at an intersection with SR 53 in conjunction with 6th Street. At this juncture, SR 251 reverts to Ardmore Avenue, which then shares the route with SR 53.