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Rideau Canal National Historic Site of Canada

Locking Through

Locking Upstream

1. Boat enters the lock and the lock gates are closed.

2. Upper wall sluice valves are opened and water flows into the lock chamber.

3. Water level begins to rise in the lock chamber.

4. Water level is equalized.

5. Upper wall sluice valves are closed.

6. Lock gates are opened and the boat exits the lock.

Locking Upstream