Warning sign
Hump bridge sign
What does the Hump bridge sign mean?
Warns of a hump bridge ahead. Slow down: you cannot see over the top, and the road may be narrow.
Also known as: Humpback bridge
What it means
There is a bridge with a steep hump ahead, which can hide oncoming traffic and unsettle a vehicle taken too fast.
The symbol shows the road rising over the arch of a bridge.
Slow down before the bridge. You may not see vehicles coming the other way until the top, and many hump bridges are only wide enough for one vehicle.
Where you'll see it
Before old bridges over canals, rivers and railways, mostly on country roads.
Rules to know
The sign warns of a hump bridge.
Know Your Traffic Signs, p. 12
Common mistakes
Mistake: Keeping your speed over the bridge.
Instead: At speed, a hump bridge can make a vehicle lift and lose grip. Slow down before you reach it.
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© Crown copyright. Free to reuse under the Open Government Licence v3.0, as long as the sign is reproduced accurately and not in a misleading context.
Related signs
Often confused with
Uneven road
Warning sign
Two bumps: an uneven road surface.
See also
Steep hill upwards
Warning sign
Another warning about the shape of the road.
More warning signs
All warning signs
Sources
- Know Your Traffic Signs (Department for Transport, Sixth edition, 2023), Warning signs, p. 12
Sign image: Department for Transport, Traffic sign images (diagram 528). © Crown copyright, reused under the Open Government Licence v3.0.
Last reviewed 6 October 2026. This page explains the sign in our own words; for the full rules, see The Highway Code. How we source and check content