Welland Canal and crossings are numbered from north to south. The following illustration depicts the profile of the Welland Canal. The horizontal axis is the length of the canal. The vertical axis is the elevation of the canal segments above mean sea level. If assigned by the St. Lawrence Seaway Authority. The original bridges across the fourth canal were numbered in order. Numbering was not changed as bridges were removed. Welland Canal The Welland Canal is a ship canal in Ontario, Canada, connecting Lake Ontario and Lake Erie. It forms a key section of the St. Lawrence Seaway. Traversing the Niagara Peninsula
Welland separate railway lines. The new segment of canal would have no bridges, and just one railway tunnel, so all of these routes required redesign. The two branches of the CASO line, plus the Cayuga Subdivision were re-routed through the Townline Tunnel, while the North/South Canadian National line was split and discontinued as a through route. The station at King Street was abandoned and demolished. It was replaced by a new station outside of town, but passenger service ended soon after. Today, Welland is the location of one of only two remaining railway crossings that span the Welland Canal. The Townline