Common

Slippery When Wet

What It Means

A yellow diamond showing a car with skid marks trailing behind it, warning that the road surface ahead can become unusually slick, especially when wet.

How Rare Is It on Road Sign Hunt?

Common. You'll spot these on almost any drive.

Spotting Tip

Common approaching bridges, tunnels, and stretches of road known for poor drainage or oily pavement — bridges ice and get slick before the rest of the road does, so DOTs post it as a standing warning.

Fun Fact

Bridges are singled out for this warning because they lose heat from both the top and underside, so they freeze before the connecting roadway does even at the same air temperature — this sign (or a paired “Bridge Ices Before Road” sign) exists specifically to flag that gap.

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