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 lift bridge at Dain City, Ontario which also remains in use as the Trillium Rail Canal line. Prior to 1967, this section of The Canal line was referred to as CN's Cayuga Subdivision. The Cayuga Subdivision was then re-routed through the Townline Tunnel, which is to the north of Dain City. This section through Dain City was renamed the Canal Subdivision from this location at CN Welland Diamond, where it connects to the north-south trackage (former CN Welland Subdivision). This east-west trackage head continues to this day westward to a rail junction the by-pass of what is now operated as