The warning comes in MARINE NOTICE No 85 of 2008, typically at a time when boats are being tied up for the winter. The Canal Bye-Laws state: 25. (1) No person shall moor a boat-( a ) at any lock, sluice, barrage, weir or bridge in such a way as to cause damage to or cause an obstruction to safe use of the said lock, sluice, barrage, weir or bridge;
Shannon Navigation Bye-Laws state: 17. (4) A person shall not moor a vessel or boat without the permission of the Commissioners-( d ) so as to obstruct or be likely to obstruct the passage of, or be or be likely to be a danger to, another vessel or boat or to cause or be likely to cause injury or damage to persons or property,
Additionally Masters and Owners of vessels are advised that registration numbers and/or permits must be displayed where best seen and clearly visible to Waterways Ireland staff from ashore.