South Dakota Oversize / Overweight Trucking Permits Rules and Requirement
South Dakota Oversize permits OR South Dakota Overweight Permits are required when a vehicle or its load exceeds the state feet legal size or weight limits and needs to travel on public highways. These permits ensure compliance with safety standards and protect road infrastructure.
South Dakota oversize permits phone number: 270-908-9656
Compare Transport LLC is your trusted partner for all your South Dakota trucking permit needs. We offer a range of permits including South Dakota oversize permits, South Dakota overweight permits, and South Dakota temporary plates. Whether you need a South Dakota oversize permit for your load or a South Dakota overweight permit for your vehicle, we provide fast, reliable, and affordable services. Additionally, our South Dakota temporary plates are available for short-term use, ensuring you stay compliant on the road. Reach out today for your South Dakota oversize and overweight permits, as well as temporary plates!
South Dakota oversize regulations
South Dakota Legal Dimension Limit
Legal Dimensions for Trucking in South Dakota
Length: 53 feet semi-trailer, No restriction on overall length
Overhang: 3 feet front and 4 feet rear
Note: A 53′ trailer and its load are subject to the same overhang limitations.
Items such as poles, pipes, beams, utility poles, etc., are not exempt from regulations regarding length or rear overhang permits.
Width: Cannot exceed 8 feet 6 inches.
Height: Limit is set at 14 feet
South Dakota Legal Weight Limit
The legal weight is 80,000lbs, subject to axle configurations:
Axle weight limits South Dakota
- Steer axle: Must not carry more than 600lbs for every inch of tire width
- Single Axle: Up to 20,000 pounds
- Tandem Axle: Up to 34,000 pounds
- Tridem Axle: Up to 42,000 pounds
Divisible Loads Exceeding 80,000lbs: It is permissible to exceed 80,000lbs of total weight on state highways without a permit, provided each axle or group stays within legal limits and the vehicle is licensed for the total gross weight.
If traveling on any Interstate route, you will require an “Interstate Permit.”
South Dakota Routine Limit: South Dakota Oversize and Overweight Limits
- Length: Varies depending on the route.
- Width: Varies depending on the route
- Height: Varies depending on the route
Maximum Weights With South Dakota Overweight Permit:
Weight (based on axle configuration and spacing)
- Axle Weight:
Steer Axle: 600lbs per inch of tire width (equal to 13,200lbs for 11″ steer tires)
Single Axle: 24,000bs
Tandem Axle: 46,000lbs
Tridem Axle: 60,000lbs
Quad Axle: 68,000lbs
To permit specific weights, ensure your registration covers at least the weight you want to carry, or pay an additional fee for a trip permit. Some routes allow higher weights. The South Dakota Department of Transportation will determine permissible weight by route. When applying for overweight permits, all axles must be in contact with the ground, and the truck must be licensed for the intended weight, or additional fees may be charged with the permit
South Dakota oversize permits validity period
To operate legally in South Dakota, commercial carriers must secure the appropriate permits based on vehicle size, weight, and registration status. Below is a detailed guide to the validity of all key South Dakota trucking permits, including oversize, overweight, superload, IRP, IFTA, TRP, and temporary trip and fuel permits.
Operating Time South Dakota:
Vehicles with loads measuring up to 10′ wide, 14′6″ high, and 110′ in total length may move without interruption on interstate highways and within a 2-mile radius of interchanges on state highways, starting 30 minutes before sunrise and ending 30 minutes after sunset, even on weekends. Overweight vehicles are permitted to travel at any time.
Road and Bridge Oversize Restrictions
South Dakota follows the Federal Bridge Formula, which provides specific weight limits for bridges. Road size restrictions include, but are not limited to:
- Traveling through construction zones
- Ignoring warning signals in work zones
- Failing to give priority to law enforcement and emergency vehicles
Note: All vehicles, both driven and towed, must comply with posted weight limits for bridges
Seasonal Load (Weight) Restrictions:
Weight restrictions related to spring thaw may come into effect anytime after February 15. Please check with the permit office for updated restrictions.
Seasonal Load Restrictions
Frost laws, which apply in several states and provinces in Canada, may be in effect. South Dakota’s oversize load permits may have specific restrictions based on the nature and type of the load.
If necessary, daily temperature-based restrictions may be posted statewide. The weight limit maps on the provided webpage will display color-coded limits for axle weights (6, 7, or 8 tons).
Oversized Tire Regulations
- Tires should be in proper operating condition, properly inflated, and should have a minimum tread depth of 2/32 inches (3/32 inches for front tires). The maximum allowable weight per tire is 500 lbs per inch of tire width (600 lbs for the steering wheel).
- If weather conditions cause slippery surfaces, studded snow tires or chains are permitted.
South Dakota Escort Requirement
- Length:
Over 130′ requires one escort. - Width:
On Interstate Highways: One escort is required for loads exceeding 16′.
On Most State Highways: One escort must accompany any load wider than 20′.
Multiple escorts are required if the load extends more than two feet into adjacent lanes or if vehicles cannot pass without using the shoulder.
Black Hills area: Any load over 10′ wide needs one escort, excluding US 16 (from Rapid City to Keystone, WY) and US 18. - Height: Generally, no escort requirements.
South Dakota Banners, Lighting & Flage Requirement
All oversize vehicles and loads must display flags. Flags should be attached at all corners of the vehicle or any load exceeding 8′6″ in width. Additionally, any load that projects beyond the width of the hauling vehicle must also have flags attached. If a load exceeds 3 feet from the vehicle’s front bumper or extends more than 4 feet behind the vehicle, flags must be attached to the projected area. For projections wider than 2 feet, two flags are required. Any vehicle with a load wider than 12 feet or longer than 95 feet must have “Oversize Load” signage. If signs cannot be taken down at night, amber and red lighting and reflectors must be used to make load extensions visible.
South Dakota Oversize/Overweight Fee structure
South Dakota offers a variety of vehicle and transportation permits, each with its own fee depending on the type and usage. Below is a breakdown of key permit types and their current associated costs:
Heavyhaul Oversize Trucking Services in South Dakota
South Dakota Oversize Permits for Truck with Permit Cost
South Dakota Heavy Hauling Company for Heavy Equipment Shipping
Compare Transport LLC is your go-to choice for the best heavy-haul oversize trucking services across the United States and Canada. As a leading heavy-haul transportation company, we specialize in handling over-dimensional and overweight shipments with precision and expertise.
Our team of experienced heavy haul movers ensures the safe and efficient transportation of your cargo, no matter how challenging the dimensions or weight may be. We pride ourselves on providing top-notch heavy haul trucking services, utilizing state-of-the-art equipment and industry-leading techniques.
With Compare Transport LLC, you can trust that your heavy haul transportation needs are in capable hands. We prioritize customer satisfaction and strive to exceed your expectations with our reliable, timely, and cost-effective services. Experience the excellence of our heavy haul trucking services and let us handle your most demanding transportation requirements. Our Services include Flatbeds Trucking, Lowboy Trucking, Dry Van Trucking, Tractor trailers, Step Deck Trucking, Conestoga Trucking, Reefer Trucking, Intermodal Trucking, Cardo Van Trucking, Heavy Haul Trucking, and Power Only Trucking areas.
Compare Transport LLC is the single STOP for all Oversize / Overweight permits with one easy-to-use application.
Frequently Asked Questions
South Dakota oversize permits can be obtained online through our website comparetransportll.com or by calling us at 270-908-9656
In most U.S. states, including South Dakota, the maximum allowable width for a vehicle or load without requiring a permit is 8 feet 6 inches. Any width exceeding this limit is considered oversize and requires a special permit.
South Dakota oversize permits can be obtained online through our website comparetransportll.com or by calling us at 270-908-9656
South Dakota requires oversize and overweight permits for vehicles that exceed legal limits in size or weight. Travel is typically allowed during daylight hours, with specific restrictions for weekends and holidays. Escort vehicles may be required for larger dimensions.
Applications for South Dakota oversize permits can be submitted online via our website comparetransportll.com or by calling us at 270-908-9656
The cost of an overweight permit in South Dakota varies depending on axle configuration, weight, and distance traveled. Fees are calculated based on excess weight over legal limits. On average, prices range from $25 to several hundred dollars. Compare Transport LLC provides affordable and accurate permit pricing for overweight hauls.
The phone number for assistance is 270-908-9656.
Yes, South Dakota requires trip permits for vehicles that are not registered under the International Registration Plan (IRP) but wish to operate temporarily within the state. Compare Transport LLC can issue temporary trip permits quickly for out-of-state carriers.
To get your South Dakota oversize permits fast and at competitive prices, contact Compare Transport LLC at 270-908-9656. Their experienced team will handle all permit types across the U.S. and Canada.
South Dakota’s oversize laws regulate loads that exceed 8’6” in width, 13’6” in height, 75’ in overall length (for combination vehicles), and certain weight thresholds.
Yes, you can get South Dakota oversize permit online by calling us at 270-908-9656.
In South Dakota, any vehicle or load that exceeds one or more of the following dimensions is considered oversized:
- Width: over 8 feet 6 inches
- Height: over 13 feet 6 inches
- Length: over 75 feet for combinations
- Weight: over 80,000 pounds gross
You can log in to manage your South Dakota oversize permit through Our website comparetransportll.com
South Dakota requires permits for any oversize or overweight vehicle. Movement is usually allowed during daylight, and loads may be subject to escort and route requirements. Weekend or holiday travel might be restricted.
If your vehicle is not registered under the International Fuel Tax Agreement (IFTA), you must obtain a fuel permit to travel through South Dakota. Compare Transport LLC offers South Dakota fuel permits for commercial carriers operating temporarily in the state.
An oversize permit in South Dakota typically costs around $25 to $100, depending on the size, route, and duration.
