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Lane Closed: What It Means & What To Do

Lane Closed (W20-5) - diamond orange with black construction sign: A lane is closed ahead
MUTCD CodeW20-5
CategoryConstruction Signs
ShapeDiamond
ColorOrange with black

What Does the Lane Closed Mean?

A lane is closed ahead. Merge into the open lane.

About This Sign

This sign warns that one or more lanes are closed due to construction. Begin merging early to avoid delays.

Other Construction Signs

No Passing Zone (W14-3) - pennant (isosceles triangle) yellow with black construction sign: You are entering a no-passing zone

No Passing Zone

W14-3

Road Work Ahead (W20-1) - diamond orange with black construction sign: Construction or maintenance work is ahead

Road Work Ahead

W20-1

Detour (W20-2) - rectangle (horizontal) orange with black construction sign: Follow the detour route to bypass a closed section of road

Detour

W20-2

Frequently Asked Questions

What does the Lane Closed mean?

A lane is closed ahead. Merge into the open lane.

What shape and color is the Lane Closed?

The Lane Closed uses the Diamond shape and Orange with black coloring.

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Lane Closed Meaning 2026 - DMV Test Guide & Free Practice | DMV IQ