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
First Welland Canal number of reasons, the main one being the strong current of Niagara and the proximity of the towering Niagara Falls that made the journey hard and uncomfortable. Due to this, a second route was planned to diverge from the canal at Port Robinson. It would follow the Welland River southwest, then branch off, following Forks Creek and a 20 kilometre channel cut through present-day Wainfleet and the Wainfleet Marsh to reach Grand River and Lake Erie. In September 1827, work on the Deep Cut was paused due to heavy rains. Many workers were transferred to construction of the canal in