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This figure demonstrates how a typical locking system operates. The ship in this example approaches from the higher water elevation. The lock doors and filling valve are closed. The emptying valve is then opened and the water is forced out of the lock until it reaches its natural elevation. The lower lock doors are then opened, and the ship proceeds.



This is a demonstration of the Soo Locks: This figure demonstrates how a typical locking system operates.
The ship in this example approaches from the higher water elevation.
The lock doors and filling valve are closed.
The emptying valve is then opened and the water is forced out of the lock until it reaches its natural elevation.
The lower lock doors are then opened, and the ship proceeds.




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Last Modified: April 26, 2005