Proceed with caution, water crosses the road at a drift on the road ahead.
Where you will see it
Where a stream crosses the road at a drift instead of running under a bridge, common on rural roads.
What to do
Slow right down and look before you put a wheel in. If the drift is running, do not attempt it: you cannot see what the water has done to the surface underneath, and turning round costs you far less than being carried off it.