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 Crossing locks
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 The chamber lock was invented in the 15th century to allow boats to travel on natural waterways with uneven water levels and breaks. It has also made it easier to cross man-made dams along our rivers, and replaced barrage bays. There are some 2,000 chamber locks throughout France, and they represent the origin of the development of modern river navigation.
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DIFFERENT LOCKING TYPES
Automatic locks
- Do not latch onto the opening pole.
- Do not park under the electronic detection area.
In an automatic chain of locks, it is important to cross all locks without stopping, otherwise the automatic system may be blocked..
Other locks
They may be operated by:
- the lock keeper,
- the lock keeper with the help of the boater,
- the boater alone. |
1/ Approach to the lock
If the lock gates are closed, stay some distance back from them to avoid the wash caused by the filling or emptying of the chamber.
Let the boats out of the lock.
Wait until the gates are open, and preferably until the final signal is given, before moving forward. |
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2/ Entering the lock
Comply with the instructions of the lock keeper. .
Basic rules:
- make sure your mooring ropes are long enough to compensate for variations in water level,
- oversee the operation carefully. |
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3/ In the lock
- Do not moor up to a barge.
- Attach your mooring ropes to a bollard (or mooring bitt).
- Do not use the engine.
PAY ATTENTION TO:
Ladders and slippery stairways, the bottom of the lock sill: do not remain stationary on a level with the gates (risk of grounding).
Use floating fenders to protect your boat's hull.
If the lock walls are sloped, push yourself back using the boathook as the level lowers. |
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4/ Leaving the lock
- Do not release the mooring ropes before the end of the locking cycle.
- Observe the order of exit according to the position of boats. |
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 Informations
> Navigation timetable
> Crossing locks
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