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
Exeter Ship Canal Exeter Ship Canal The Exeter Ship Canal, also known as the Exeter Canal, downstream of Exeter, Devon, England. It was built in the 1560s which means it pre-dates the "canal mania" period and is one of the oldest artificial waterways in the UK. At the start of Exeter's history, the River Exe was tidal and navigable up to the city walls enabling it to be a busy port. In the 1270s or 80s, the Countess of Devon, Isabella de Fortibus, built a weir across the river to power her mills (this weir is remembered in the name of the nearby