Captains Handbook | Page 33

Weirs Some locks are situated very close to weirs and it is important to keep well away from them. Make sure as you approach these locks that you go directly to the mooring area with mooring lines ready. Check that your anchor is also ready to be used if necessary. Never use your dinghy or swim near a weir. Bridges Certain vertical weirs are particularly dangerous as the back current will draw small craft or swimmers towards the wall. Even a very low wall can be lethal. Keep well away and do not bathe near one of these constructions. WATERWAY STRUCTURES d e Waterways Structures Often only one arch of the bridge is suitable to pass through. Follow the signs scrupulously and check the map before proceeding. Always pass through the centre of the arch as the pylons are usually wider under the water. On the canals the old bridges are often very low and present a danger both for crew members and for the tables and umbrellas placed on the top deck. These bridges and the height available are shown in your canal guide. When approaching a lifting bridge or a turning bridge, stop well in advance to wait for it to be opened. Locks Depending on the region you are in, locks may be manually operated, electrically operated or automatic, but whatever the system, the manoeuvres are always much the same. When approaching a lock, stay at least 100 metres short to enable