River locks have strict rules regarding who can enter, and when they can enter. Priority will always be given to commercial vesselsĀ (unless you are a military craft), but regardless of who you are, you need to obey the traffic lighting system; green, amber, and red. But which flashing light tells you to enter a river lock?
A green flashing light is the color signal that you can enter a river lock. You could also hear horn blasts. These are also a signal also to enter, but only if the green light is flashing at the same time. Just like traffic lights on the road, red means stop and do not enter. Amber lets you start to approach safely.
What do all the color lights mean at a river lock?
Please note, some river locks used fixed lights, others more commonly use flashing lights. But essentially, they mean the same thing.
Red fixed light
If the lights are fixed on red, and NOT flashing, this means that the lock master isnāt aware of any boats or might not have noticed any.
Red flashing light
If the light is flashing red, this tells you to keep away from the river lock and donāt attempt to enter. You should leave lots of room for the boats to exit before you can start your entry on the signal of an amber light.
Amber light
The amber color means you can start to approach the river lock, but in a safe and controlled manner, proceeding with caution.
Amber and green light
If both colors are on at the same time, that means you can proceed towards the river lock, but under full control with no need to be as cautious.
Green flashing light
When the light starts to flash green, thatās your signal to enter the river lock. You could also hear long blasts on a horn which is another signal to let you enter.
Exiting a river lock
The traffic lighting system used above is the same for exiting the river lock, but instead of a long horn blast, you will hear a short one to exit.
Video show the wait for the green light at a river lock
In the video below you can see footage of a boater entering a river lock on the Murray River, waiting for the light to go green.
The last wordā¦
This answer article was generated due to demand from users taking Boat Ed tests and Quizlets. It is for informational purposes only and is produced in order to help you with your revision and gain a better understanding of the topics you need to learn about.
I donāt advocate taking any short cuts when it comes to your marine and boating education, as boat safety is something that even the most experienced boaters should always be on top of.
This answer is one of many that are already on the Pontoonopedia website. You can explore some more of them below.
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