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Road May Flood: What It Means & What To Do

Road May Flood (W8-18) - diamond yellow with black warning sign: This road is subject to flooding
MUTCD CodeW8-18
CategoryWarning Signs
ShapeDiamond
ColorYellow with black

What Does the Road May Flood Mean?

This road is subject to flooding. Do not drive through standing water.

About This Sign

This sign warns that the road is in a low-lying area prone to flooding. If water is present, turn around - don't drown.

Other Warning Signs

Frequently Asked Questions

What does the Road May Flood mean?

This road is subject to flooding. Do not drive through standing water.

What shape and color is the Road May Flood?

The Road May Flood uses the Diamond shape and Yellow with black coloring.

Practice Road Sign Questions

Test your knowledge of road signs with free DMV practice tests.

Road May Flood Meaning 2026 - DMV Test Guide & Free Practice | DMV IQ