Missouri Axle Weight Limits

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LEGAL LIMITATIONS

WEIGHT

MAXIMUM LEGAL WEIGHT ALLOWED

Gross vehicle weight – 80,000 pounds

The maximum weight allowed in Missouri per axle is 20,000 pounds on the interstate and 22,000 pounds on non-interstate roads. The maximum weigh allowed per tandem is 34,000 pounds on the interstate and 36,000 pounds on non-interstate roads. This applies to roads that are not marked with lower weight restrictions.

On all highways other than the interstate system an additional 2,000 pounds may be added to the weight table, except the 80,000 pound maximum gross weight may not be exceeded.

MAXIMUM PERMIT WEIGHT ALLOWED

The maximum allowable axle weights for permits are as follows:

1. Single axle—twenty thousand (20,000) pounds;
2. Tandem axle group—forty-six thousand (46,000) pounds, but

not more than twenty-four thousand (24,000) pounds, for any axle of a multi-axle group;

3. Triple axle group—sixty thousand (60,000) pounds, but not more than twenty-one thousand (21,000) pounds, for any axle of a multi-axle group; and

4. Quadrum axle group—seventy-two thousand (72,000) pounds, but not more than nineteen thousand (19,000) pounds, for any axle of a quadrum axle group;

  1. Maximum permittable gross vehicle weight – 160,000 pounds

AXLE GROUP

MAXIMUM

SINGLE

20,000 pounds

TANDEM

46,000 pounds (but no more than 24,000 pounds for any axle of a multi-axle group)

TRIPLE

60,000 pounds (but no more that 21,000 pounds for any axle of a multi-axle group)

QUADRUM

72,000 pounds (but no more than 19,000 pounds for any axle of a quadrum axle group)

GROSS VEHICLE WEIGHT

160,000 pounds

Source of information: http://www.modot.org/mcs/documents/OSOWRegBook2017.pdf

https://www.mshp.dps.missouri.gov/MSHPWeb/Publications/Brochures/documents/SHP-250.pdf

http://www.modot.org/mcs/

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