W415
At a glance
- Sign code
- W415
- Type
- Warning
- Official meaning
- An overhead danger plate hazard marker highlighting an overhead obstruction or restricted vertical clearance.
What the Overhead danger plate sign means
A red-and-white striped plate fixed to an overhead structure such as a low bridge, gantry or boom to make the obstruction stand out and warn you of limited clearance ahead.
What you must do
Note the warning and check that your vehicle (including any load) can safely pass underneath. If clearance is in doubt, slow down and do not proceed under the structure.
Know the mistake this sign turns on
Full access adds the confusion Overhead danger plate is most often mistaken for and the hint for the test, on this sign and every other one — plus practice questions and timed mock papers. The practice sample and the readiness test are free.
See the free practice testSources
- Road Traffic Signs chart, National Department of TransportThe official chart. Sign W415 was checked against it, artwork and meaning, before being published here.
- National Road Traffic Regulations, 2000 — Schedule 1Where the prescribed meaning of each road traffic sign is set out.
Last updated 2026-08-23.