Crinan Canal links Crinan and Ardrishaig in Argyll and Bute region, Scotland. It was planned by civil engineer John Rennie and work initiated in 1794, but was not finished until 1801, two years later than scheduled. Crinan was constructed to assure a brief cut for commercial sailing and fishing vessels. The canal carries 15 lakes and is cut by seven bridges, six swing bridges and a retractable bridge . Stone for the 15 locks was got from Mull, the Isle of Arran and Morvern.The canal is 3 metres (10 feet) deep and has essentially no height limit.