Weight Limit sign

What to do

Vehicles heavier than the posted weight must not use this road or structure.

If you drive a loaded truck or tow a heavy trailer, know your gross weight and take another route before reaching a structure posted below it.

Where it's used

Section 2B.64 requires a weight limit sign at any road section or structure, such as a bridge, that has a vehicle weight restriction, plus an advance sign with a distance or direction so that heavy vehicles can detour or turn around in time. The basic R12-1 is a vertical black-on-white rectangle reading WEIGHT LIMIT and a figure in tons (or pounds). Variants include AXLE WEIGHT LIMIT (R12-2), a combined axle-and-gross sign (R12-4), the R12-5 and R12-6 signs with truck symbols and limits, and an Emergency Vehicle Weight Limit sign (R12-7); a word such as BRIDGE may be added.

Don't confuse it with

• No Trucks: No Trucks bans trucks entirely, while a weight limit only bars vehicles heavier than the posted weight.
• Low Clearance: Low Clearance is a yellow warning about height, while the weight limit is a white regulatory sign about vehicle weight.