Missouri Oversize
Permits & Escorts

MISSOURI OVERSIZE PERMITS & ESCORTS INFORMATION
Important! We are not a permit service.  We do not arrange permits for carriers.  The following is for informational purposes only.  Always read your permits and provisions sheets carefully. We cannot guarantee the accuracy of the information provided.
Missouri DOT Phone Number
601-359-1717

Permits

Missouri oversize permits are valid for seven days. Must have permit prior to entering the state.

Operating Time

One-half hour before sunrise to one-half hour after sunset, including Saturday and Sunday, except that loads over 14′ wide will not be allowed weekend travel. Travel times are more limited in metropolitan and tourist areas (see Restricted Travel section below). Overweight only up to 112,000 pounds gross with legal size may travel 24 hours except metro and tourist areas.

Restricted Travel

[Detailed restricted travel information]

Legal Dimensions

  • Length: 53′ semi-trailer and load (including rear overhang) on Interstate and designated highways, 60′ when more than 10 air miles from designated system
  • Width: 8′-6″ on Interstate, designated highways, 8′ on other roads
  • Height: 14′ on designated highways, 13′-6″ on other roads. Note: Over height must be on drop-deck trailer to be permitted.
  • Weight: 80,000 Gross
  • Single – 20,000 (22,000 on secondary)
  • Tandem – 34,000 (36,000 on secondary)
  • Tridem – 34,000 (8′ of spacing); 42,500 (9′ of spacings)

    • Routine Permit Limits

  • Length: 150′
  • Width: 16′
  • Height: 16′ (15′-7″ maximum on some routes)
  • Weight:
  • 5 axles – 104,000
  • 6 axles – 120,000
  • 7 axles (1-3-3) – 130,000
  • Single – 20,000
  • Tandem – 46,000 (40,000 on a 10′ spread)
  • Tridem – 60,000
  • Quad – 72,000

    • Escorts

  • Length: Over 90′ – one escort on all highways except divided highways
  • Width: Over 12′-4″ – one escort (two escorts off designated highway system), Over 14′ – one escort on Interstate and divided highways, two escorts required on two-lane and undivided highways
  • Height: Over 15′-6″ on two-lane & undivided, Over 15-6″ divided highways – route survey and one escort with high pole. Utility bucket truck may be required to lift wires.

    • Miscellaneous

    If trailer is stretched, Missouri wants to know how much used and unused space is in well, and on front and rear decks.

    Signs, Flags & Lights

    “Oversize Load” signs are required on front and rear of the load vehicle when width exceeds 10′-6″, and on the rear of the load when overall length exceeds 90′. Flags are required at the extreme ends or projections of all overwidth and overlength loads.

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