Loads & load rating

Guidance for loading conditions and load rating of bridge structures.

Related manual chapters

Chapter 3 - Loads (PDF 906KB) provides guidance for bridge loading conditions, limit states, and load factors.

Chapter 13 - Load Rating (PDF 1.9MB) provides criteria and guidance for loading rating bridges.

Bridge Design Manual 

Complete Bridge design guidance is found in the Bridge Design Manual (M 23-50).

See all manuals and standards

Traction tires are a special type of tire

manufactured with at least 1/8 of an inch tread. Traction tires are usually marked with a mountain/snowflake symbol, the letters M+S or “All Season.”

Carry chains, practice before leaving

Requiring chains keeps traffic moving during storms rather than closing a pass or roadway.

Prep your car. Fill up your gas tank,

pack jumper cables, ice scraper, warm clothing, snacks and water.