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.
First Welland Canal number of reasons, the main one being the strong current of Niagara and the proximity of the towering Niagara Falls that made the journey hard and uncomfortable. Due to this, a second route was planned to diverge from the canal at Port Robinson. It would follow the Welland River southwest, then branch off, following Forks Creek and a 20 kilometre channel cut through present-day Wainfleet and the Wainfleet Marsh to reach Grand River and Lake Erie. In September 1827, work on the Deep Cut was paused due to heavy rains. Many workers were transferred to construction of the canal in