Welland Canal Port Maitland. With the opening of the extension, the canal stretched between the two lakes, with 40 wooden locks. The minimum lock size was , with a minimum canal depth of . Deterioration of the wood used in the 40 locks and the increasing size of ships led to demand for the Second Welland Canal, which used cut stone locks, within just a few years. In 1839 the government of Upper Canada approved the purchase of shares in the private canal company in response to the company's continuing financial problems in the face of the continental financial panic of 1837.
Welland stations, under Via Rail control. Prior to the Welland Canal relocation in the early 1970s, there were two bridges crossing the old canal. The busiest was a swing bridge located between the Lincoln and Broadway bridges (the CASO line). This bridge was a relic of an earlier canal, and although it does not swing any longer, it remains in railway use. Once or twice per week, a local Trillium Rwy way freight crosses this bridge to access Vesuvius Industries on the west side of the old canal located on Trillium Rwy's West Welland Spur. The second crossing was as vertical