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A yellow diamond sign showing a car at the edge of open water.
warning

Unprotected quay, canal or river ahead

The road runs beside deep water with no barrier.

What it means in practice

There is nothing to stop a vehicle leaving the road and entering the water. Reduce speed, keep well left of the water's edge and take particular care in the dark or in poor visibility.

Description

A yellow diamond sign showing a car at the edge of open water.

hazardwater

Sources

  • Rules of the Road · Road Safety Authority · Edition reflecting road traffic law as at 1 March 2025
    Last checked 2026-09-08

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Independent learning application. Not affiliated with the Road Safety Authority or the official Driver Theory Test service. TheoryLane questions are written by TheoryLane from published Irish road-rule sources.