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One Lane Bridge: What It Means & What To Do

One Lane Bridge (W5-3) - diamond yellow with black warning sign: The bridge ahead allows only one lane of traffic
MUTCD CodeW5-3
CategoryWarning Signs
ShapeDiamond
ColorYellow with black

What Does the One Lane Bridge Mean?

The bridge ahead allows only one lane of traffic. Yield to oncoming vehicles already on the bridge.

About This Sign

This sign indicates a single-lane bridge where opposing traffic must take turns crossing.

Where you will see it

You see this sign before a bridge with only one lane, where vehicles going in opposite directions have to take turns crossing.

What to do

  • Slow down and look at the bridge before you enter.
  • Yield to oncoming vehicles that are already on the bridge.
  • Cross only when the bridge is clear.

A common mistake

Drivers sometimes assume they can squeeze past an oncoming car on a one-lane bridge. There is room for only one vehicle at a time, so wait your turn.

What to remember for the test

The key rule is that vehicles already on the bridge go first. If someone is coming across toward you, you stop and let them clear it.

Other Warning Signs

Frequently Asked Questions

What does the One Lane Bridge mean?

The bridge ahead allows only one lane of traffic. Yield to oncoming vehicles already on the bridge.

What shape and color is the One Lane Bridge?

The One Lane Bridge uses the Diamond shape and Yellow with black coloring.

Practice Road Sign Questions

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