Secure Your Missouri Oversize Permits Today – Call Now!
Missouri (MO) DOT Phone no.# (270)908-9656
Oversize & Overweight Trucking Permits for Single Trip, Fuel, Overhang and Annual Permits
Missouri (MO) oversize permits validity: These permits valid for seven-days. Before entering with a heavy haul, it is necessary to secure permits.
Missouri (MO) Legal Dimension
Length: 53 feet acceptable for semi-trailer with overhang in interstate and specified road. When traveling over 10 air miles from the designated system, the allowable length increases to 60 feet.
Width: 8 feet 6 inches allowed width for interstate and designated roads. 8 feet acceptable for others.
Height: 14 feet allowed on designated roads and 13 feet 6 inches on others.
Instructions: To be approved, must be step deck for over-height load.
Weight: 80,000lbs Gross weight.
Single Axle 20,000lbs on non-interstate and 22,000lbs on interstate.
Tandem Axles 34,000lbs on non-interstate and 36000 on interstate.
Tridem Axles 34,000lbs with 8 feet distance and 42,500 with 9 feet distance.
Please Note: If the weight exceeds the legal limitations by even a little amount, permits will be required.
Missouri (MO) Routine Permit Limit
Length: 150 feet
Width: 16 feet
Height: 16 feet acceptable, and on some routes may 15 feet 7 inches acceptable.
Weight: Single Axle 20,000lbs
Tandem Axles 46,000lbs. With tandem axles 10 feet distant, the weight limit reduces to 40,000 pounds.
Tridem Axles 60,000lbs.
Quad Axles 72,000lbs.
5 Axles 104,000lbs.
6 Axles 120,000lbs.
7 Axles 130,000lbs with (1-3-3)
Variable depending on axle spacing. The 7-axle design with a 1-3-3 system would look like this:
• A single axle at the front.
• A set of three axles at the center.
• Another set of three axles at the back.
Instructions: Using a 1-2-2-1 configuration, tandem drive axles for tractor, tandem axles for trailer, and booster, is not allowed. You must have a tridem drive axles for tractor to use a tandem trailer and booster.
Loads that surpass these dimensions and 160,000 pounds in gross weight are considered superloads.

Missouri (MO) Travel Time: You may travel half an hour before sunrise to after half an hour sunset including weekends. If loads wider than 14 feet will not acceptable to travel on weekends. Overweight loads more than 112,000lbs with legal dimension can travel all time except metropolitan and tourist areas.
Missouri (MO) Travel Restrictions: Travel is restricted on major holidays and from noon the day before holiday and holidays weekends. In St. Louis City and County (excluding Route 370), travel on I-70 in St. Charles County, Route 94, is restricted from 6:30 AM to 9:00 AM and from 3:30 PM to 6:30 PM. Similar restrictions apply on Route 40/61, and in Jefferson County on I-55 and Routes 21, 30, 141, and 61/67. In the Kansas City area, travel is restricted from 7:00 AM to 9:00 AM and from 4:00 PM to 6:00 PM on Routes 150, 291, I-470, 291, 152 west of I-435, and within the enclosed area of these routes, and within the city limits of Springfield except on I-44 and Route 65. These metro area curfews do not apply to overweight loads. No permit movements are allowed on the Mississippi River bridges in St. Louis on I-70, I-55, I-64, and on Route 60/62 at Cairo, IL. During the tourist season, travel is not permitted on Saturdays and Sundays on routes in the Ozarks and Branson areas (within 10 miles of Branson), except for Route 65. The tourist season is defined as June 1 through Labor Day in the Lake of the Ozarks area and through October 31 in the Branson area. These curfews are detailed further in Part 9 of the MO Permit Regulations Booklet, which drivers should carry if hauling oversize or overweight loads in Missouri.
Missouri (MO) Escort / Pilot Car Requirements and Information
Length: More than 90feet, required one escort/pilot car on all road except merged roads.
Width: – More than 12 feet 4 inches required one escort/pilot car, but on designated highway required two escort/pilot car off. More than 14 feet required one escort on interstate and merged roads. For two lane roads and unmerged roads required two escorts.
Height: More than 15 feet 6 inches on two lane road and unmerged road and more than 15 feet 6 inches on merged roads, Required route survey and one escort with pole. Bucket trucks might be required to lift wires.
Signal, lights and flags requirements for oversize load In Missouri (MO): If load exceeds 10 feet 6 inches width and 90 feet length, “Oversize Load” sign is must require in this condition, in front and rear of the truck or load. Flags are required at the loads corners ends of all overwidth and overlength loads.
Additional details for loads in Missouri: Missouri demands information on the amount of utilized and empty area in extendable trailers, including the front and rear decks. If the trailer is extendable.
Missouri (MO) Single trip (IRP) OR Fuel (IFTA) and Annual Permits:
To obtain Missouri (MO) Single trip (IRP) OR Fuel (IFTA) and Annual Permits, the carrier must log into the state’s online permitting system, acknowledge the permit conditions, enter the vehicle and load information, select the travel dates, and provide the route details. Get your permits by calling us at (270)908-9656.
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Missouri (MO) Overweight Permit
This permit is necessary when a vehicle exceeds the allowable weight restrictions imposed by an authority. It guarantees that the truck may move securely on roadways while causing no harm to infrastructure.
Missouri (MO) Overlength Permit
The permit is required for vehicles that exceed the standard-length limit. It enables the transportation of longer goods, such as huge beams or pipes, while maintaining their safety and legality.
Missouri (MO) Fuel/Trip Permit
These permits are normally valid for one trip and is often necessary for trucks that do not have a regular IFTA (International fuel tax agreement) in place and IRP (International Registration Plan) registered. It enables the truck to drive through particular countries while remaining compliant with fuel tax requirements.
Missouri (MO) Overhang Permit
The permit is required when a load exceeds the rear or front of the vehicle. It guarantees that the overhanging weight is delivered securely, without endangering other road users.
Missouri (MO) Over-width Permits
A permit is necessary for vehicles that exceed the normal width limitations. It enables the transportation of larger loads, such as massive equipment or prefabricated constructions, while maintaining their safety and legality.
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FAQ'S Asked Questions about Oversize Permits
Missouri oversize permits information including legal dimensions, routine permit limits, and escort requirements, operating times and restricted travel.
Loads exceeding regular size and weight restrictions need an Oversize Overweight Permit (OSOW). The permit details specific routes and conditions.
Missouri permits a maximum load width of 14 feet.
In Missouri, trailers may be up to 8 feet 5 inches (102 inches) wide on specified routes.
Missouri's overweight fine is $87.50 for the first 1,000 pounds above the limit, plus $0.10 for each extra pound.
"OD" stands for "Over-Dimensional," and refers to loads that surpass the usual legal size and weight restrictions.
Without a permission, Missouri allows for a 3 feet front and 4 feet rear overhang.
Missouri does not have a particular lift legislation for trucks, but vehicles must follow federal requirements for bumper height and suspension adjustments.
Missouri's bridge legislation controls vehicle weight distribution to safeguard bridges and highways.
In Missouri, you may travel with oversized load half an hour before sunrise to after half an hour sunset including weekends. Certain regions, such as Kansas City and St. Louis, have additional curfews in place.
Missouri's maximum gross truck weight is 80,000 pounds.
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