Minnesota Overweight/Oversize Permits

PERMITS: Minnesota oversize permits are valid for five travel days. Must have a permit prior to entering the state. OPERATING TIME: Sunrise to sunset can run without special lighting. Up to and including 10′ wide can usually run 2:00 A.M. to 10:00 P.M, weekdays and Saturdays (except for curfew areas and Friday summer restrictions, below) but must have to flash amber lights front and rear at night, and lights in place of flags and outlining vehicle and load for night running. Over 10′ wide must have front and rear escorts plus lights to run before sunrise or after sunset. During summer months (Memorial Day weekend through the Friday after Labor Day), no movement from 2:00 p.m. Friday until sunrise on Saturday except for up to 9′ wide on 22′ or wider roadway, up to 14′ high. Travel is permitted Saturday all day, and Sunday from sunrise to 12:00 noon. Over 10′ wide can travel at night only with front and rear escorts and must meet all lighting requirements.  


Width: 8’6″
Weight:   80,000 Gross on designated highways
  • 73,280 non-designated with 5 axles
  • 80,000 non-designated with 6 axles
  • Steer Axle – 600 pounds per inch of tire width (13,200 pounds with 11″ tires)
  • Tandem – 34,000
  • Tridem – 42,000
  • Single – 20,000 Designated highways (18,000 other roads)
  • 75′ overall
  • 53′ semi-trailer
  • 43′ kingpin setting measured from kingpin to center of rear axle group
Note: Utility Poles are exempt from permits only if the Bill of Lading lists the load as utility poles. Pipes, beams, etc. not exempt.
Height: 13’6″


Width: 14’6″, and up to 16′ for certain routes
  • 95′ for two-vehicle combination (wheelbase of 75′)
  • 103′ with a single pivot point
  • Single – 20,000
  • Tandem – 40,000 (44,000 with bridge check)
  • Tridem – 60,000
  • Quad – 72,000
  • Steer – 600 pounds per inch of tire width (13,200 on 11″ tires)
  • Pusher Axle – 500 pounds per inch of tire width (11,000 pounds with two 11″ tires)
You must be registered for at least the amount of weight you are permitting for Minnesota.
  • 14′ – 15’6″ with route restrictions
  • Loads over 15’6″ are highly restricted and a route survey is required
Loads exceeding these dimensions or weights are considered as Super Loads.  


When Escorts are Needed:

On All Highways:

Width over 14’6″ to 16’6″ 2 Minimum on a single lane

On Multi-Lane Divided Highways:

Width of 14’6″ to 16’6 1-Minimum on divided highway

On All Highways:

Length over 95′ up to 110′ 1 – Minimum
Length over 110″ 2 – Minimum
Width over 16’6″ 2- Minimum
Height over 15’6″ 1-H Pole suggested/not required

Police Escort

Prime responsibility of permittee to determine the need for police escort, Which is automatically required if permittee is not able to yield right of way to oncoming traffic or if vehicle/load will encroach into oncoming traffic lane or if traffic must be directed or controlled Permittee is responsible for police escort fees State may require police for other safety reasons  


“Oversize Load” signs required when escorts are required or when over 12′ wide. They must be lit up to run at night. Flags (18″ square) are required whenever rear overhang exceeds 4′, or when vehicle/load exceeds 9′ in width or 75′ in length. Flags should be mounted at the tip of overhang, at corners and widest points of load. An overwidth or overlength vehicle/load requires flags at each corner of the load, with an additional flag at the widest point on each side of the load if it extends beyond the corner flags. Overhang exceeding 4′ requires light at night. Flashing amber lights are usually required on the permit when over 12′ wide.  


No travel on major holidays, some holiday weekends or on Fishing Opener Weekend in May.  For vehicles over 12’6″ wide, over 95′ long, or over 14′ high, no travel in Twin City Metro area between the hours of 6:00 a.m. – 8:30 a.m. or 3:30 p.m. – 6:00 p.m. or in Duluth city limits between 7:00 a.m. – 8:30  a.m. or 4:00 p.m. – 5:30 p.m. unless specifically stated on permit. These metro areas are defined on the OD/OW Travel Hours sheet available on their website.