State Route 518 (SR 518) is an east–west state highway located entirely in Columbiana County in northeast Ohio. The western terminus of SR 518 is at SR 644 north of Summitville. Its eastern terminus is at the concurrency of U.S. Route 30 (US 30) and SR 45 near West Point. Originally created in the late 1930s, SR 518 runs through rural portions of Columbiana County. It passes through scattered small unincorporated communities along the way. Route description SR 518 begins at an intersection with SR 644 in Franklin Township within the unincorporated community of Millport. This stop-controlled T-intersection is located north of Summitville. The route heads east and immediately crosses over a small stream before paralleling the Brush Creek and passing through agricultural lands. Shortly after entering Wayne Township, the route makes a sharp curve to the right at an intersection with Gavers Road (County Road 407). SR 518 crosses over the West Fork of the Little Beaver Creek before that creek merges with the Branch Creek; the former now parallels SR 518 for the remainder of the route. After passing the New Lebanon Church, the route descends into a small valley where it passes over a culvert carrying a tributary of the Little Beaver Creek. To the north of the route in this valley is an old alignment of SR 518 that was bypassed . Within the community of Gavers, SR 164 comes in from the south and joins SR 518 to form a concurrency. After the brief concurrency, SR 518 continues east still paralleling the West Fork Little Beaver Creek as it passes through more farmland with occasional forested areas. At the border of Wayne and Madison Townships, SR 518 passes an abandoned rest area and intersects Black Road. Just past this intersection, there is a monument commemorating the location of the surrender of Gen. John Hunt Morgan during the Civil War. Continuing east through more forested land, the route enters the community of West Point. In the community, SR 518 makes an S-curve at High Street before continuing northeast to an intersection with County Road 448-A. At this intersection, SR 518 turns to the northwest and travels for about before ending at a T-intersection with US 30 and SR 45. History SR 518 was designated in 1937 along the most of the routing that it currently occupies. Originally, SR 518 ended near the present-day SR 518–CR 448-A