One lane underpass road sign (MUTCD W5-3a)
MUTCD W5-3a

One lane underpass Road Sign

What this sign means

Warns of a one-lane underpass ahead where only one vehicle can pass at a time. Slow and yield to oncoming traffic in the narrow passage.

Sign group
W5 series Road width restrictions
MUTCD code
W5-3a
View all Warning signs

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Road narrowsRoad narrowsNarrow bridgeNarrow bridgeOne lane bridgeOne lane bridgeRamp narrowsRamp narrowsRoad narrowsRoad narrowsNarrow bridgeNarrow bridgeNarrow UnderpassNarrow UnderpassOne lane bridgeOne lane bridgeRamp narrowsRamp narrowsPath narrowsPath narrows

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