A ford is a shallow crossing point where a road passes directly through a stream or river instead of over a bridge.
This sign warns drivers well in advance so they can assess the depth and decide whether it is safe to continue.
What this sign means
The sign shows a red bordered triangle containing a black silhouette of a car partly submerged in wavy water lines, representing a vehicle crossing a ford.
It warns that the road ahead crosses through water rather than over it, and that depth can vary considerably depending on rainfall and tides.
What to do when you see it
Approach the crossing with caution and check conditions before continuing.
- Look for a depth gauge post and check the water level before entering
- Slow down and use a low gear to maintain steady control
- Test your brakes gently afterwards, as water can reduce braking efficiency
- Turn back if the depth looks too great for your vehicle
How this sign is tested
The theory test includes the ford sign in the warning signs section, and questions often ask what action to take, such as checking depth or braking gently afterwards.
It may be paired with questions on other rural hazard signs to test recognition alongside general road safety knowledge.
Common mistakes
Drivers sometimes enter a ford at speed without checking depth, risking loss of control or stalling the engine in deeper water.
Some forget to test their brakes gently after crossing, which can leave them with reduced stopping power on the next section of road.
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Practise road sign questionsFrequently asked questions
What does the ford sign warn of?
It warns that the road ahead crosses a stream or river at a shallow point rather than over a bridge.
How should I check the depth before crossing?
Look for a depth gauge or marker post at the ford, and do not proceed if the water looks too deep for your vehicle.
What should I do after driving through a ford?
Test your brakes gently, since water can temporarily reduce their effectiveness.