['Size and Weight Limits']
['Oversize and Overweight Movements']
11/08/2025
...
SEARCH
General requirements
| Reducible expectations | Permits will not be issued for oversize or overweight movements that can be reduced or loaded within the legal size and weight limits. Permits are not available to allow use of overlegal size truck and trailer for the convenience of the truck owner. The load must warrant an overwidth or overlength trailer. | |||
| Permit timing | Payment must be made before a permit will be issued. | |||
| Method of application | A MnDOT permit application may be submitted through an on-line permit system, in person, or through J. J. Keller & Associates, Inc., Trip Permits, at (800) 231-5266. | |||
| Payments accepted | Payment must be made before a permit will be issued. Payment can be made by cash, check or credit card. | |||
| Electronic permits | A driver may show an enforcement officer a copy of their permit on a mobile device, such as a phone, laptop computer, or tablet as long as the permit is complete and legible. A copy of the permit need not be signed by the driver. | |||
| Route surveys | Annual permits require the individual trip route to be pre-approved by MnDOT. When applying for a permit where overall dimensions exceed 16' high or 20' wide, MnDOT requires the permittee to conduct a pre-trip route survey. In certain cases, excessive length may require a route survey. | |||
Insurance requirements
| Liability | The permittee is responsible for all liability for personal injury, property damage or time lost which may occur because of the oversize or overweight movement. The permittee must hold the State of Minnesota, its department officers, and employees harmless from all suits, actions, or claims that may result from the movement. The permittee shall repair or have repaired at his/her expense, any damage to highways or structures that may occur in connection with operations under the permit. Any repairs made must meet the satisfaction of the Commissioner of Transportation. | |||
| Coverage | Generally, for-hire carriers must file $100,000/$300,000 public liability insurance as well as $50,000 property-damage insurance. | |||
Available permits and fees
| General | ||
| Permit Period | Conditions | Fee |
| Single trip | Oversize only | $15 |
| Job (up to 2 months) | Issued for like loads carried on a specific route - oversize only | $36 |
| Seasonal | Snowplow Up to 10' wide Between October 1st and April 1st | $60 |
| Annual | Mobile Crane / self propelled vehicles - oversize only Up to 14' high and 48' long | $120 |
| Annual | Baled hay/straw/cornstalks - oversize only Up to 12' wide, 15' tall (14' 6" metro) | $60 |
| Annual | Manufactured homes and manufactured storage buildings Up to 16' wide, 15' tall, and 110' long | $120 |
| Annual | Construction equipment, machinery, and supplies - oversize only Up to 16' wide, 15' tall, and 110' long | $120 |
| Annual | Non-commercial boat-hauler Up to 14' 6" wide, 14' tall, and 85' long On Minnesota State Highways | $60 |
| Annual | Commercial boat-hauler - oversize only Up to 16' wide, 15' tall, and 110' long | $120 |
| Annual | Double deck bus Up to 14' 3" tall | $120 |
| Annual | Implements of Husbandry - oversize only Up to 16' wide, 15' tall, and 110' long | $120 |
| Annual | Special farm products – 6 or more axles Up to 90,000 lbs No interstate highways | $300 |
| Annual | Special farm products – 7 or more axles Up to 97,000 lbs No interstate highways | $500 |
| Annual | Livestock – 6 or more axles Up to 88,000 lbs No interstate highways | $200 |
| Annual | Road construction materials – 6 or more axles Up to 90,000 lbs No interstate highways | $300 |
| Annual | Road construction materials – 7 or more axles Up to 97,000 lbs No interstate highways | $500 |
| Annual | Annual Forest Products Permit – 6 or more axles Up to 90,000 lbs | $300 |
| Annual | Special pulpwood – 6 or more axles Up to 82,000 lbs No interstate highways | $60 |
| Annual | Refuse-compactor | $85 |
| Annual | Special products - two unit vehicle with 6 or more axles Up to 90,000 lbs See permit limitations | $300 |
| Annual | Special products - two unit vehicle with 7 or more axles Up to 97,000 lbs See permit limitations | $500 |
| Annual | Special products - three units See permit limitations | $850 |
| Annual | Tire hauling Up to 12' wide and 108,000 lbs On specified highways only | $850 |
| Annual | Tow truck | $300 |
Permit limitations
| Permit limitations | |
| Width | Limitation |
| Annual | 16' Except during Spring Road Posting, when the maximum width under an annual permit reduces to 14' 6" |
| All | Travel on multi-lane highways must be in the right lane whenever there is more overhang of the right side of the vehicle than to the left |
| Height | Limitation |
| Annual | 14' Drop deck trailers are required for overheight |
| Length | Limitations |
| Annual | • Single Vehicle — 60' including overhang • Combination Vehicle — 95' including overhang |
| Trip | • Single Vehicle — 60' including overhang • Combination Vehicle — Limited by the type of equipment and the number of pivot points on the vehicle combination. |
| Weight | Limitations |
| GVW | No overweight permit for vehicles and/or loads that exceed the legal axle weights for vehicle combinations with less than 5 axles • 92,000 lbs (107,000 lbs on single trip) for 5-axle vehicles • 112,000 lbs (121,000 lbs on single trip) for 6-axle vehicles • 132,000 lbs for 7-axle tridem/tridem vehicles (135,000 lbs on single trip) • 144,000 lbs for 8-axle tridem/quad vehicles (147,000 lbs on single trip) |
| Steers | 12,000 lbs. Can be increased, e.g. up 1,000 lbs with 11:00 series tires on steer axle |
| Configuration | Limitations |
| Job or seasonal | • Single axle — 20,000 lbs truck-truck, tractor, trailer or semitrailer • Tandem axle — 20,000 lbs per axle (weight in excess of 20,000 lbs per axle up to 23,000 lbs may be allowed on a Single Trip Permit) • Tridem axle — 20,000 lbs per axle • Quad Axle — 18,000 lbs per axle |
| Refuse compactor | 22,000 lbs on single rear axle, 38,000 lbs on a tandem rear axle 46,000 lbs on a tridem rear axle (limits the gross vehicle weight to no more than 62,000 lbs) |
| Special products | A permit for a vehicle that transports paper products, finished forest products, or iron ore tailings on specified roads only. Two unit vehicle: • Up to 90,000 lbs on a combination with 6 or more axles • Up to 97,000 on a combination with 7 or more axles • Truck tractor with a 48' trailer or a 53' trailer with a maximum 43' KPRA Three unit vehicle: • Up to 108,000 lbs • 45' truck or 75' combo • Legal width and height |
| Sealed intermodal containers | • 90,000 lbs GVW • 99,000 lbs GVW during winter weight increase season on 6 or more axles |
Signs
| General sign requirement | Loads 14'6" high and above, and loads 10' wide and over require two signs. | |||
| Escort sign requirement | ||||
| Type | Size | Lettering | Background | |
| General signs | OVERSIZE LOAD | 7' x 18" | 10" black block lettering | Yellow |
| Escort signs | OVERSIZE LOAD | 5' x 12" | 8" black lettering | Yellow |
Lights
| General light requirements | Amber or yellow warning lights may be used in lieu of or in conjunction with flags for nighttime movements | |||
| Escort light requirements | In addition to any other equipment required by the traffic laws, must be equipped with at least one warning light. | |||
| Type | Placement | |||
| General light type and placement | Lamps/rotating/strobe lights/red | As far apart as possible that flash simultaneously, red lights used for extreme rear portion of a load | ||
| Escort light type and placement | Flashing yellow or amber light | Mounted on the top of the pilot/escort vehicle and visible for 360° | ||
Flags
| Type | Size | Placement | ||
| General Flags | Red/orange | 18" square | On each front and rear corner of vehicle(s) and at the widest point(s) of a wide load. Projections extending forwards or backwards from the vehicle require amber/red flags respectively depending on you particular load dimensions. | |
| Escort Flags | Red/orange | 18" square | Must be mounted in line with the OVERSIZE LOAD sign on a 45° angle toward the sides of the pilot/escort vehicle. | |
Escort vehicle markings
| Size | Placement | Content | |
| Visible from 55' | NS | Showing a company name, a federal Department of Transportation (USDOT) identification, or a city, state, and contact number. | |
Escort/Flagperson requirements
If escort services are required for the movement of an overdimensional load, that service may only be provided by a certified pilot/escort driver or certified licensed police officer.
Escorts are required as follows:
| Load Condition | Escort Requirements |
|---|---|
| Any part of the load or vehicle extends beyond the left of the centerline on an undivided roadway | One lead and one rear escort and one lead licensed peace officer |
| Loads exceeding 15’ in width measured at the bottom of the load or 16’ measured at the top of the load | One lead and one rear escort is required on any undivided roadway |
| When deemed necessary to protect public safety or to ensure against undue damage to the road foundations, surfaces, or structures | The permit will specify the number of additional escorts required and whether the operators of the escort vehicles must be licensed peace officers or may be escort drivers |
| Overall length exceeding 110’ on a multi-lane divided roadway | One rear escort vehicle is required |
| Overall length exceeding 110’ on any undivided roadway, or
Overall length exceeding 150’ on a multi-lane divided roadway. | One lead escort vehicle and one rear escort vehicle |
Flagpersons
A standing flagperson may be required for overlength movements at intersections.
There are no flagperson or escort requirements for overweight movements, although they can be required when crossing certain bridges.
During the movement of an overdimensional load, a certified pilot/escort driver, in the performance of the flagging duties, may control and direct traffic to stop, slow, or proceed in any situation when deemed necessary to protect the motoring public from the hazards associated with the movement of the overdimensional load. The pilot/escort driver, acting as a flagger, may aid the overdimensional load in the safe movement along the highway designated on the overdimensional load permit and must:
- Assume the proper flagger position outside the pilot/escort vehicle and, as a minimum standard, have in use the necessary safety equipment as defined in section 6E.1 of the Manual of Uniform Traffic Control Devices (MUTCD);
- Use STOP or SLOW paddles or a 24-inch red/orange square flag to indicate emergency situations, and other equipment as described in section 6E.1 of the MUTCD; and
- Comply with the flagging procedures and requirements in the MUTCD and the Minnesota Department of Transportation's Minnesota Flagging Handbook, available at http://tinyurl.com/MNflagging (see Part 6).
Escort car/company requirements
Pilot/Escort vehicles must:
- Be in sound and safe operating condition;
- Be properly licensed and registered based on the state of registration;
- Be a passenger automobile, light duty van, or a two-axle pickup or a two-axle single unit truck; and
- Have a minimum wheelbase of 100 inches.
Vehicles may not carry passengers under the age of 16 or carry loads of cargo that reduce the driver's visibility. Vehicles may not tow a trailer while escorting overdimensional loads unless the party involved is a building mover licensed by the Commissioner of Transportation and the building being moved is not a temporary structure or manufactured housing.
Vehicles must contain a two-way simplex communication device with a transmission and receiving range of at least one-half mile. The communication device must be compatible with accompanying pilot/escort vehicles, overdimensional load drivers, law enforcement officers (if involved), and utility company vehicles (if involved).
Vehicles must display identification showing a company name, a federal Department of Transportation (USDOT) identification, or a city, state, and contact number, which must be legible from a distance of 50 feet.
Vehicles must be equipped with the following items:
- A minimum of one 18-to-24-inch STOP/SLOW paddle, reflectorized for nighttime flagging operations (a 24-inch orange/red flag on a 36-inch staff may be used in an emergency flagging operation only);
- A Class 2 safety vest approved by the American National Standards Institute for use during any time the pilot/escort driver is outside the pilot/escort vehicle on any roadway as per current Manual of Uniform Traffic Control Devices (MUTCD) standards;
- One flashlight with a lens width of 1.5 inches with extra batteries or charger (emergency self-charging flashlights do not meet this requirement);
- One six-inch-long orange/red cone to fit the flashlight (traffic wands are an acceptable alternative to the orange/red cone);
- Nine reflective triangles or reflectorized 18-inch orange traffic cones with a single reflective band of six inches in height;
- Eight fuses, flares, red glow sticks, or USDOT-approved alternative red-light-producing devices;
- Three standard 18-inch orange traffic cones;
- One yellow, vinyl, or mesh OVERSIZE LOAD sign, seven feet wide by 18 inches tall with lettering at least 10 inches high with a 1.41-inch brush stroke;
- A first aid kit clearly marked and labeled;
- A height pole, if required as a condition of the overdimensional load permit, which must be nonconductive, nondestructive, flexible, and readily breakable and installed and in use by the front pilot car at all times when an overdimensional load exceeds 15 feet 6 inches in height;
- One five-pound capacity serviceable fire extinguisher with an ABC rating; and
- One handheld simplex two-way compatible communication device with a minimum transmission and receiving range of one-half mile (the device must be used in a flagging situation where the pilot/escort driver is outside the pilot/escort vehicle).
A pilot/escort car driver must possess a current certificate of insurance or endorsement that indicates that the driver, or the driver's employer, has in full force and effect insurance coverage for bodily injury and property damage resulting from the operation of the pilot/escort vehicle, an act or omission by the operator of the pilot/escort vehicle, or both. The insurance or endorsement must be at least $1,000,000 combined single limit or $1,000,000 per occurrence of commercial liability coverage, as applicable, and must be maintained at all times during the term of the certification.
The insurance certificate must indicate on the face of the document that the policy is for the operation of pilot/escort vehicles and for pilot/escort duties and responsibilities.
Pilot/escort vehicles must have a minimum amount of $1,000,000 liability insurance. This is not a cumulative amount.
Escort certification
Drivers domiciled in Minnesota must complete a pilot/escort certification course accepted, approved, or authorized by the Minnesota Department of Public Safety (the Minnesota Department of Public Safety has partnered with Minnesota State Colleges and Universities to develop training curriculum). At the time of the course, pilot/escort drivers must provide a certified and current (within 30 days) driver's license record to the Minnesota-authorized training program. For more information on Minnesota's training and certification program, contact Hennepin Technical College at www.hennepintech.edu/cts/.
Initial certification is valid for four years from the date of issue. One additional four-year certification may be obtained through a mail-in or online re-certification process provided by a Minnesota-authorized training program. Pilot/escort drivers must attend a full certification course every eight years.
Pilot/escort drivers domiciled outside of Minnesota may operate as a certified pilot/escort driver with another state's certification credential, provided the course meets the minimum requirements outlined in the Pilot/Escort Training Manual - Best Practices Guidelines as endorsed by the Specialized Carriers and Rigging Association, Federal Highway Administration, in cooperation with the Commercial Vehicle Safety Alliance, available at http://tinyurl.com/pilotmanual.
Certified pilot/escort drivers and certified licensed peace officers operating a pilot or escort vehicle must meet the following requirements:
- Be a minimum of 18 years of age;
- Possess a valid operator's license for the type of vehicle being operated;
- Carry his/her pilot/escort certification card at all times while in pilot/escort operations;
- When operating a vehicle in excess of 10,000 pounds gross vehicle weight or gross vehicle weight rating, comply with the regulations of the Federal Motor Carrier Safety Administration (FMCSA) in Code of Federal Regulations, Title 49, Parts 382, 383, 390, 391, 392, 393, 394, 395, 396, and 397; and
- If operating as a front or rear pilot car driver, do not perform as a tillerman/steerman for the load being escorted (a tillerman/steerman must not be in the pilot/escort vehicle when a steering activity is being performed).
Pilot/Escort vehicle operators have specific duties and responsibilities when escorting overdimensional vehicles and loads. These duties and responsibilities can be found in Minnesota Administrative Rule 7455.1200, Certified Driver Duties, available at http://tinyurl.com/MNescortduties. Minnesota also adopts by reference the Pilot Car Escort Best Practices Guidelines Manual, available at http://tinyurl.com/pilotmanual.
Pilot/Escort vehicle operators are also responsible for attending pre-trip coordination meetings with the overdimensional vehicle drivers, law enforcement (if involved), and utility company representatives (if involved). Specific requirements for the pre-trip meetings can be found in Minnesota Administrative Rule 7455.1300, Pre-trip Coordination Meeting, available at http://tinyurl.com/MNescortmeeting.
Escort car signs, flags, and lights
A pilot/escort vehicle must display an OVERSIZE LOAD sign mounted on the top of the vehicle, clearly readable and legible at all times of operation. This sign must be displayed so that it is visible to both overtaking and oncoming traffic at all times during the pilot/escort operation. Bumper-mounted signs only are prohibited.
The sign must be a rigid mount and be a minimum of five feet in width, have 10 inches of vertical visible surface space, and display black letters that are eight inches in height and have a one-inch brush stroke on a solid yellow surface (solid is defined as when being viewed from the front or rear at a 90-degree angle to the sign, no light can transmit through the solid surface).
Red/orange 18-inch flags must be mounted in line with the OVERSIZE LOAD sign and mounted at approximately a 45-degree angle toward the sides of the pilot/escort vehicle. A sign, light, or flag may not extend more than six inches beyond the widest part of the body of the pilot/escort vehicle.
Signs and flags must be removed or covered when pilot/escorts are not providing services.
If a route survey is being performed by the pilot/escort, the OVERSIZE LOAD sign must be removed or covered. Route surveys may not be performed while escorting an overdimensional load.
The pilot/escort vehicle, in addition to any other equipment required by the traffic laws, must be equipped with at least one flashing yellow or amber light. These lights must be mounted on the top of the pilot/escort vehicle and visible for 360 degrees for all traffic. Two types of approved lighting are described as follows:
- Two AAMVA/SAE/USDOT-approved yellow or amber, flashing or oscillating, strobe lights must be used with one mounted on each side of the top-mounted sign. These lights must be visible for 360 degrees, illuminated at all times during operation, and visible from a minimum distance of 500 feet under normal atmospheric conditions.
- An AAMVA/SAE/USDOT-approved yellow or amber, flashing or oscillating, strobe beacon light bar must be used, mounted on top of the pilot/escort vehicle. The light bar must have a minimum of two lights within the housing of the light bar. The light bar must be unobstructed and visible for 360 degrees.
AAMVA/SAE/USDOT refers to the American Association of Motor Vehicle Administrators, the Society of Automotive Engineers, and the United States Department of Transportation.
Incandescent, strobe, or diode (LED) lights may be used if they meet the criteria specified above.
Travel restrictions
| Daytime | Oversize and overweight movement hours are not restricted unless otherwise specified in the permit. At night, all moves must be outlined in lights. | |||
| Weekend | Oversize and overweight movement hours are not restricted unless otherwise specified in the permit. | |||
| Holidays | No oversize or overweight travel is allowed statewide from 2:00 p.m. the day before the holiday to 2:00 a.m. the day after the holiday, when exceeding 9’ 0” wide and/or 110’ long. | |||
| Visibility | No movement is authorized when road conditions are unsafe due to ice, snow, rain, or if visibility is less than 500’. | |||
['Size and Weight Limits']
['Oversize and Overweight Movements']
UPGRADE TO CONTINUE READING
Load More
J. J. Keller is the trusted source for DOT / Transportation, OSHA / Workplace Safety, Human Resources, Construction Safety and Hazmat / Hazardous Materials regulation compliance products and services. J. J. Keller helps you increase safety awareness, reduce risk, follow best practices, improve safety training, and stay current with changing regulations.
Copyright 2026 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.
