First Welland Canal reason for the error is not known. On July 4, 1818, Merritt organized a meeting in St. Catharines. The outcome was a petition sent to Upper Canada Legislature to provide for construction of a canal between the Twelve Mile Creek and Welland River. Unlike Merritt's original water-canal plan, the petition included plans for allowing boats to cross the Niagara Escarpment. In 1823, Hiram Tibbetts, an engineer, was employed to make a formal survey for the route. He suggested to dig a channel below the surface level of Welland River between present-day Port Robinson and Allanburg, and then follow the Twelve
Welland out of Welland, leading north to Thorold, St. Catharines and onwards via Queen Elizabeth Way. Port Colborne is linked to Welland by Highways 140 and 58. Port Colborne residents then can take the 406 further north. The Mid-Peninsula Highway, once constructed, can play an important role in the transportation patterns of Welland, as it might cross the Welland Canal along the Highway 58A corridor in the south of the city. Should that occur, Highway 406 will likely be extended to reach the new thoroughfare. Two of the three tunnels under the canal, Main Street Tunnel and Townline Tunnel, are located