Narrow Bridge Sign
The narrow bridge sign is a diamond-shaped yellow warning sign with a black symbol showing a road narrowing at a bridge. It warns that the bridge ahead is narrower than the road you're currently on, meaning there's less room for vehicles to pass each other. The reduced width may eliminate shoulders, narrow lanes, or both. When you see this sign, slow down and prepare for tighter driving conditions on the bridge. On a very narrow bridge, there may only be room for one vehicle at a time — in that case, you may need to wait for oncoming traffic to clear before proceeding. The sign is often accompanied by bridge weight limit signs, which are especially important for heavy vehicles. Narrow bridges are common on rural roads, county roads, and older highways where the bridge was built to standards that no longer match the width of the current road. Be cautious of pedestrians and cyclists on narrow bridges, as there may be no sidewalk or shoulder for them. In winter, remember that bridge surfaces freeze before the roadway, making a narrow bridge even more challenging.
Rules & What to Do
Slow down before the bridge. Reduce speed if the bridge is very narrow. Yield to oncoming traffic if the bridge is only wide enough for one vehicle. Stay centered in your lane and avoid sudden steering movements. Watch for pedestrians and cyclists.
Penalties
No direct penalty for the warning sign. However, reckless driving on a narrow bridge or causing a collision due to speed can result in fines of $150-$500+ and points on your driving record.
For Commercial Drivers
Narrow bridges pose significant challenges for wide commercial vehicles. Check bridge weight limits before crossing — exceeding them can cause structural failure and carries heavy fines. Wide loads may not fit on narrow bridges and require alternate routes. CDL drivers should know their vehicle's width and check for posted width restrictions. Approach slowly enough to stop if oncoming wide loads are on the bridge.
Frequently Asked Questions
What does a narrow bridge sign mean?
A narrow bridge sign means the bridge ahead is narrower than the road you're on. Slow down, stay in your lane, and be prepared for tighter conditions with less room for error.
What should you do at a narrow bridge?
Slow down before reaching the bridge. Stay centered in your lane. If the bridge is very narrow, you may need to yield to oncoming traffic. Watch for pedestrians who have nowhere to go on a narrow bridge.
What is the difference between narrow bridge and road narrows signs?
A narrow bridge sign specifically warns about a bridge that's narrower than the road. A road narrows sign warns that the road itself becomes narrower, which could be due to construction, terrain, or road design changes.