Watercourse
The sign indicates the name of the watercourse
When You See This Sign
When you see the sign you know that you are crossing or approaching a named watercourse. You do not need to take any legal action, but be alert because the sign is often placed near bridges or narrow sections where speed and attention should be adjusted.
Rules & Regulations
- Sign F12 is an informational location marker indicating the name of a watercourse; it has no regulatory effect.
- The sign does not impose any obligations regarding right of way or speed — traffic rules remain in force as usual at the location.
- F12 is normally placed adjacent to bridges, river channels or other crossings and should be used as a reference in maps and official records.
- The sign is used for position identification by, for example, emergency services and road authorities and should be positioned in accordance with the road authority's and traffic sign regulations.
Tips for Drivers
- Use the sign to confirm your position against a map or GPS — the name of the watercourse can be a useful landmark in rural areas.
- Be extra attentive when the sign appears because it is often located near bridges or narrow sections; adjust your speed and check for oncoming traffic, pedestrians and cyclists.
- Keep in mind that areas by open water can be more slippery or exposed to gusts, especially in winter — maintain a safe distance and avoid sudden maneuvers.
Common Mistakes
- Believing that the sign implies a prohibition or obligation, for example that you must stop or give way — it does not.
- Confusing F12 with a warning sign for a bridge, danger from water or flooding; F12 only indicates the name of the watercourse.
- Ignoring the sign entirely and overlooking that it may indicate the road crosses a bridge or other structure where extra caution is required.
Test Yourself
Road Sign: Watercourse
What does this sign mean at a bridge or at the edge of a body of water?
- A Indicates the name of the watercourse or the local water body
- B Indicates that swimming is permitted
- C Indicates that the area is a nature reserve
- D Indicates that there are navigation aids for boats
Exam Tip
On the theory test there may be statements intended to make you believe the sign implies some kind of obligation (e.g. 'you must slow down' or 'you must give way'). Remember that F12 is purely informational and does not change the traffic rules themselves.
Did You Know?
F12 belongs to the group of location signs and is used mainly as an aid for orientation and location identification, both for motorists and for authorities such as emergency services. The sign is most common on country roads and smaller roads where watercourses serve as clear reference points.
Frequently Asked Questions
Do I have to slow down when I see the F12 sign?
No, the sign does not automatically require you to slow down. However, it is often located at bridges or narrower road sections, so it may be appropriate to adjust your speed according to road and visibility conditions.
Does the sign mean there is a bridge?
Not necessarily, but F12 is often placed at crossings over watercourses which often involve a bridge or other structure. Therefore be alert to the road layout when the sign appears.
Can the sign help in an accident or emergency?
Yes, the name of the watercourse serves as a clear location identifier that helps ambulance, police and rescue services find the correct place. When you call for help, it's helpful to provide the name shown on the sign.
Is F12 the same as a warning sign for flooding or water on the road?
No, F12 is a location sign and does not warn of an immediate hazard. Warning signs for flooding or slipperiness are different types of signs and carry a warning tone that requires special attention.
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