640th Avenue in Richland Township, Story County, Iowa

640th Avenue in Story County is a gravel local road (gravel path). It runs in a north-south direction and crosses 110th Street, 120th Street, 130th Street, 140th Street, 150th Street, 160th Street, 170th Street, 180th Street, 200th Street, 210th Street and 220th Street. It connects Richland Township and Warren Township. 640th Avenue also exists in Indian Creek Township.