Welland By-Pass Welland By-Pass The Welland By-pass, completed in 1973, was a massive construction project on the Welland Canal in Ontario, Canada. A new channel long was constructed, providing a shorter, more direct alignment between Port Robinson and Port Colborne and by-passing downtown Welland. The project helped improve navigation along the canal and alleviated problems the presence of a busy ship canal was causing in Welland. Although the city of Welland had originally grown around the canal, by the 1960s the constant interruptions in the flow of the vehicular and rail traffic through the city became bothersome. A single ship would hold
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