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 Canal well as heavily industrialized areas of the United States and Ontario, to be shipped to the port of Montreal or to Quebec City, where they were usually reloaded onto ocean-going vessels for international shipping. The Welland Canal eclipsed other, narrower canals in the region, such as the Trent-Severn Waterway and, significantly, the Erie Canal (which linked the Atlantic and Lake Erie via New York City and Buffalo, New York) by providing a shorter, more direct connection to Lake Erie. The southern, Lake Erie terminus of the canal is higher than the northern terminus on Lake Ontario. The canal includes eight