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 River to as Chippawa Creek, especially by those in the Chippawa area itself. The Welland Canal was named after the river since it originally was planned to link Lake Ontario to Welland River. The city of Welland, Ontario was later named after both waterways, which cross in the city. The river flows under two navigable aqueducts: the Welland Recreational Waterway and the new alignment of the Welland Canal. An important tributary of the river is Coyle Creek, a picturesque and thickly forested creek that flows into the river on the north bank. The oldest structure spanning the river was O'Reilly's Bridge,