Independent guide · Not a government site

Yellow diamond sign reading ONE LANE BRIDGE

One Lane Bridge sign

W5-3 warns of a bridge with room for traffic in only one direction at a time.

MUTCD code W5-3 · Warning sign · Source: MUTCD 11th Edition, Section 2C.19

Test yourself

What does this sign mean?

Yellow diamond sign reading ONE LANE BRIDGE
  • The bridge is for one vehicle type only
  • Only one direction of traffic fits on the bridge
  • The bridge has one lane in each direction
Show the answer

Only one direction of traffic fits on the bridge

Slow down, check for oncoming traffic and be ready to wait before you start across.

Source: Manual on Uniform Traffic Control Devices, 11th Edition, Section 2C.19

Take the road signs test

More warning signs

Road signs practice tests by state

All road signs

DMV Decoded is an independent guide, not a government agency. Check your state's driver handbook for the signs on its test.