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.
Manchester Ship Canal Police Docks and Piers Clauses Act 1847 (which was incorporated by and with the Manchester Ship Canal Act 1885). Their jurisdiction extended from Manchester to Eastham, Merseyside where the Manchester Ship Canal started at the River Mersey, along the length of the canal and within one mile of same and to its subsidiary waterways, canals and adjoining works. Manchester Ship Canal Police Manchester Ship Canal Police (also known as Manchester Dock Police and the Port of Manchester Police) was a police force in the United Kingdom that was responsible for policing the Manchester Ship Canal. It was maintained by the Manchester