What should you do when passing under bridges?

Maintaining a slow speed and proceeding with caution when passing under bridges is essential for several reasons. Firstly, bridges can have various potential hazards, such as low clearance that isn't immediately visible from a distance. Approaching at a reduced speed allows you to better evaluate the clearance height and to react appropriately if necessary. Additionally, bridges might have currents or wake effects generated by other boats that can affect your vessel's stability and handling.

Moreover, keeping a slow speed promotes safety for yourself and other boaters. It demonstrates that you are being considerate of traffic in the area, and it provides you with more time to make adjustments if conditions change suddenly. This cautious approach ensures that you can stop or maneuver if something unexpected arises, such as debris or an unfamiliar obstacle.

In contrast, speeding up or passing at full throttle can lead to increased risk of accidents, reduced control over your vessel, and failing to notice important safety information, such as navigational signs or potential obstructions. Checking for visibility only when close to the bridge neglects the importance of being aware of your surroundings well in advance, which is crucial for effective navigation.