Narrow bridge
Warning signs

Narrow bridge

A bridge ahead is narrower than the road leading to it.

Slow down before the bridge and check the space available for oncoming vehicles. Follow any priority signs and be prepared to stop if there is insufficient room to pass safely.

The United States’ W5-2 is a yellow diamond bearing the words NARROW BRIDGE. Australia’s W4-1 uses a yellow diamond with a black diagram showing a narrowed road between bridge parapets.

How it looks in each country

Official sign in each country; the code is its number in the national rules. Signs that come in two directions show the left and the right version.

  • Narrow bridge (Argentina)
    ArgentinaCode P-16
  • Narrow bridge (Australia)
    AustraliaCode W4-1
  • Narrow bridge (Bangladesh)
    BangladeshCode B35
  • Narrow bridge (Brazil)
    BrazilCode A-22
  • Narrow bridge (Canada)
    CanadaCode Wa-24
  • Narrow bridge (Chile)
    ChileCode PF-2
  • Narrow bridge (China)
    ChinaCode 警 8
  • Narrow bridge (Colombia)
    ColombiaCode SP-36
  • Narrow bridge (India)
    IndiaCode II-23
  • Narrow bridge (Indonesia)
    IndonesiaCode 1w
  • Narrow bridge (Malaysia)
    MalaysiaCode WD35
  • Narrow bridge (Mexico)
    MexicoCode SP-23
  • Narrow bridge (Philippines)
    PhilippinesCode W4-1
  • Narrow bridge (Saudi Arabia)
    Saudi Arabia
  • Narrow bridge (South Africa)
    South AfricaCode W326
  • Narrow bridge (Taiwan)
    TaiwanCode 警10
  • Narrow bridge (Thailand)
    ThailandCode ต-25
  • Narrow bridge (United States)
    United StatesCode W5-2
  • Narrow bridge (Vietnam)
    VietnamCode W.212
Image credits

Sign images from Wikimedia Commons, used under their licences.