Welland Canal, bridge 13 Welland, the bridge also links East Main Street (leading towards Niagara Falls) and West Main Street (providing access to roads leading along the Welland River to Wainfleet and Wellandport. It also provides a link between Niagara Street (formerly known as North Main Street leading to Thorold and St. Catharines, and King Street (formerly South Main Street, and also Canal Street), formerly leading to the Canada Southern Railway station, and on to Port Colborne. The "Chippawa Road" (as Main Street was then known) crossed the First Welland Canal (constructed between 1824 and 1829) via a wooden swing bridge with the pivot
Welland Canal first canal ran from Port Dalhousie, Ontario on Lake Ontario south along Twelve Mile Creek to St. Catharines. From there it took a winding route up the Niagara Escarpment through Merritton, Ontario to Thorold, where it continued south via Allanburg to Port Robinson, Ontario on the Welland River. Ships went east (downstream) on the Welland River to Chippawa, at the south (upper) end of the old portage road, where they made a sharp right turn into the Niagara River, upstream towards Lake Erie. Originally, the section between Allanburg and Port Robinson was planned to be carried in a subterranean tunnel.