Slippery Road Ahead Sign Face Post Mounted 557, (Face Only)

Sale price £63.66

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Slippery Road Ahead / Skid Risk Sign - 557 

The skid risk warning sign to diagram 557 alerts drivers where the road is slippery and the danger of a vehicle skidding is greater than usual. This is usually where drainage is poor or the surface is covered in chippings or is of poor quality.

A plate ‘For’ and a distance may be supplemented. Detailed guidance on road conditions can be found in HD 28, Skidding Resistance, in Volume 7 of DMRB if you are unsure if a special warning is necessary. Additionally, the use of this diagram should be minimal to not undermine its meaning to road users. Work to improve the skidding resistance or drainage of the road should be done as soon as possible, with the signs removed upon completion.

This sign comes in 450-1500mm. The standard size is 600mm but larger sizes are sometimes needed depending on the severity of road conditions or road speed.

Slippery Road Ahead Post Mounted sign

Superior Quality Sign Face

Superior quality speed bump sign

Superior quality prismatic reflective sign face ensure that the sign stands the test of time.

Durable Composite Base

Classic roll up sign hinge

Made from a composite material which is an aluminium covering over plastic, it is light and ultra strong.

Designed to be Post Mounted

Protected reflective face

Each Part of the sign comes with two rails allowing the fitment of two clips per face for secure mounting.


Conforms Class 2 Reflectivity
Diagram Reference 557
AccuChecked ✔ (The specification has been independently checked for accuracy)
AccuPhoto ✔ (The photos are of the actual product type that you are ordering)
Thickness 3.6mm (face), 20mm (including rails)
Type R2/RA2 reflective material on composite backing
Colour Grey backing, white, red and black signage
Customisation Alternative wording and sizes available. Please call for details.

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