Locks, Bridges, and Narrow Water

Approach discipline, waiting areas, traffic lights, bridge restrictions, and lock etiquette.

locksbridgeswaiting pontoonstraffic lights

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision

Explain approach discipline, waiting areas, traffic lights, bridge restrictions, and lock etiquette.
Apply locks to a realistic onboard situation.
Recall the core check: treat lock and bridge approaches as controlled until proven otherwise.

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Lesson routeControlled Water0/1 read

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Controlled Water

Locks, movable bridges, narrow cuts, and bridge openings are controlled water. Traffic lights, boards, lock-keeper instructions, VHF directions, and waiting areas decide when you may enter.

The safest small-craft skipper is predictable: slow early, stay out of the fairway while waiting, prepare lines and crew, and move only when the signal or instruction is clear.

Treat lock and bridge approaches as controlled until proven otherwise.
Do not enter on a red or closed signal.
Use waiting pontoons or holding areas without blocking traffic.
Prepare lines, fenders, crew roles, and engine control before the gate or bridge opens.

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