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.
Hurden ship canal Hurden ship canal The Hurden ship canal () is a long canal in the Swiss canton of Schwyz. It connects the lower section of Lake Zürich with the upper section, sometimes called the "Obersee", permitting shipping services on the lake to pass between the two halves of the lake without passing through the shallows, and under the low bridges, of the Seedamm. The canal was opened in 1943, and cuts through the base of the peninsular containing the village of Hurden, thus placing the centre of the village on an artificial island. The canal is spanned by the "Sternenbrücke", which