The Roddy Road tunnel is a sandstone block arched tunnel. A creek flows through the tunnel, and railroad tracks once passed above. Currently the road runs next to the structure, though in the past the road went directly through the tunnel alongside the Creek. The Marietta and Cincinnati Railroad built the tunnel in the 1850s to serve their line. However, the tunnel is much longer than just the width of the railroad, this apparently was to allow room for farmers to move livestock and equipment over the tunnel as well, without interfering with the railroad.