First Welland Canal was let into the Feeder and Welland Canals in November 1829. As with other locations in the peninsula, shantytowns sprung up along the Feeder Canal. These later developed into places like Dunnville, Wainfleet and Welland, among others. The Welland Canal was officially opened on November 30, 1829, exactly five years after the first turning of the sod. Two schooners, "Annie and Jane" from York, Upper Canada and "R.H. Broughton" from Youngstown, New York, left Port Dalhousie on Lake Ontario and arrived in Buffalo on the eastern end of Lake Erie two days later. "Annie and Jane" returned to Lake Ontario
Welland the area became known as simply Aqueduct. A lock to cross from the canal to the river and vice versa was also built. A small shantytown soon developed around the facility, providing essential services in what was a convenient stop-over location for travelers and workers on the canal. The growing town was later named Merrittsville, after William Hamilton Merritt, the initiator of the Welland Canal project. This name is reflected in the name of the Merrittville Highway (Niagara Road 50), which served as the primary north-south route in central Niagara before the construction of Highway 406. Welland gained its present