Skip to content

Weight Limit: What It Means & What To Do

Weight Limit (R12-1) - rectangle (vertical) white with black/red regulatory sign: Vehicles exceeding the posted weight are prohibited from using this road or bridge
MUTCD CodeR12-1
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the Weight Limit Mean?

Vehicles exceeding the posted weight are prohibited from using this road or bridge.

About This Sign

Weight limit signs protect roads and bridges from damage by heavy vehicles. Overweight vehicles must use an alternate route.

Where you will see it

Weight limit signs are posted at the entrance of roads and bridges that could be damaged by heavy vehicles. The number shown is the maximum weight allowed.

What to do

  • Check your vehicle's weight against the number on the sign.
  • Do not enter if your vehicle is over the posted weight.
  • Take the alternate route if you are overweight.

A common mistake

Drivers of loaded trucks or trailers may forget that cargo adds weight. A vehicle can be over the limit even if the empty vehicle would be under it.

What to remember for the test

Remember the purpose: protecting roads and bridges from damage by heavy vehicles. Vehicles over the posted weight are prohibited and must use another route.

Other Regulatory Signs

Frequently Asked Questions

What does the Weight Limit mean?

Vehicles exceeding the posted weight are prohibited from using this road or bridge.

What shape and color is the Weight Limit?

The Weight Limit uses the Rectangle (vertical) shape and White with black/red coloring.

Practice Road Sign Questions

Test your knowledge of road signs with free DMV practice tests.