South Dakota Oversize Permits
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Partner for Heavy Haul Permits
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.
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With South Dakota DOT
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& Annual Permits
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Oversize Permit Phone No.
(630) 800-4551
South Dakota Oversize Permits: South Dakota Oversize / Overweight Trucking Permits Rules and Requirement
South Dakota Oversize Permits and Overweight Permits phone number: (630) 800 4551
South Dakota Oversize Permits and Rhode Island Overweight Permits are required when a vehicle, heavy equipment, or oversized load exceeds South Dakota ‘s legal size or weight limitations and must travel on public highways. As a trusted Freight Defense Broker, U.S. Military-Approved Freight Broker, and provider of Freight Broker Services Chicago, Overweight Permit supports Heavy Haulers and heavy hauler truck operators with fast, reliable permit solutions. Our team ensures full compliance with South Dakota transportation regulations, helping carriers move oversized and overweight loads safely while protecting public infrastructure and minimizing costly delays.
Overweight Permit provides fast, affordable South Dakota Oversize Permits, South Dakota Overweight Permits, South Dakota Overhang Permits, and a full range of permit services, including Single Trip Permits, Annual Permits, 72-Hour Trip Permits, and Transit Permits. We simplify the entire permit process by handling South Dakota oversize overweight permit requirements, route compliance, escort regulations, and transportation documentation. Whether you need assistance with South Dakota oversize permit login, DOT compliance requirements, permit cost information, or the South Dakota oversize provision sheet, our experienced team is ready to help. Apply for South Dakota oversize overweight permits online today and enjoy expert support, quick processing, competitive pricing, and dependable service for every load.
South Dakota Oversize permits Types
A South Dakota Overlength Permit is required when a vehicle or load exceeds the state’s legal length limits. This permit allows carriers to safely and legally transport extended cargo, including beams, pipes, construction materials, and other long loads on South Dakota roadways.
A South Dakota Fuel or Trip Permit may be required for commercial vehicles that are not properly registered under the International Fuel Tax Agreement (IFTA) or the International Registration Plan (IRP). A trip permit allows eligible commercial vehicles to operate legally in South Dakota for a specific trip while complying with applicable fuel tax and registration requirements.
A South Dakota Overhang Permit may be required when a load extends beyond the permitted front or rear limits of a vehicle. This permit helps carriers transport projecting cargo safely while complying with South Dakota transportation and safety regulations.
A South Dakota Overwidth Permit is required when a vehicle or load exceeds the state’s legal width limits. It allows carriers to legally transport wide or oversized cargo, including heavy equipment, industrial machinery, construction materials, and other large loads while maintaining compliance with South Dakota transportation regulations.
South Dakota oversize regulations
South Dakota Legal Dimension Limit
Legal Dimensions for Trucking in South Dakota
Length: 53-foot 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: The Limit is set at 14 feet.
South Dakota Legal Weight Limit
The legal weight is 80,000 lbs, subject to axle configurations:
Axle weight limits South Dakota.
- Steer axle: Must not carry more than 600 lbs 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 80,000 lbs: It is permissible to exceed 80,000 lbs 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: 600 lbs per inch of tire width (equal to 13,200 lbs for 11″ steer tires)
- Single Axle: 24,000 bs
- Tandem Axle: 46,000 lbs
- Tridem Axle: 60,000 lbs
- Quad Axle: 68,000 lbs
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.
| South Dakota Permit Types, Validity & Details | ||
|---|---|---|
| Permit Type | Validity (in Days) | Details |
| Oversize / Overweight Single-Trip Permit | Effective for the specific trip duration (Usually 1 day) | Applies to a particular journey, subject to defined route limitations. |
| Oversize / Overweight Annual Permit | 365 days from the issue date | Valid for one year from the issue date, covering multiple trips within the validity period. |
| Emergency Single-Trip Oversize/Overweight | Effective throughout the emergency duration (Usually 1 day) | Applicable in emergencies, with conditions based on the emergency’s location within South Dakota. |
| Oversize for Non-Divisible Loads (Annual) | 365 days from the issue date | Valid for one year from the issue date. Permits are available for non-divisible loads up to specified dimension thresholds. |
| Longer Combination Vehicle (LCV) | 365 days from the issue date | Valid for one year from the issue date, with permits issued through South Dakota Highway Patrol. |
| Overweight Booster Axle | 365 days from the issue date | Valid for one year from the issue date, typically for specific types of axles. |
| Lift Axle or Variable Load Axle | 365 days from the issue date | Valid for one year from the issue date, except for use on interstate highways. |
| Manufactured Home (Annual) | 365 days from the issue date | Valid for one year from the issue date for homes up to specific size limits. Single trip permits are also available for homes exceeding these limits. |
| Manufactured Home (Single Trip) | Valid for the duration of the trip (Typically 1 day) | Valid for a one-time trip, especially for homes exceeding the annual size limits. |
| Slow Movement on Interstate | 365 days for annual permit / 1 day for single trip | Annual for slow-moving vehicles, or single-trip permits for specific instances of slow movement. |
| Oversized Trailer | 365 days from the issue date | Valid for one year from the issue date for oversized trailers. |
| Overlength Semitrailer | 365 days for annual permit / 1 day for single trip | Valid for one year from the issue date for overlength semitrailers, or single-trip permits as required. |
| Superload Permit | Valid for the duration of the trip (Typically 1 day) | Valid for specific superload movements, subject to conditions of each trip. Validity may require renewal or additional checks based on the load. |
| IRP (International Registration Plan) | 365 days from the issue date | Valid for one year from the issue date. For vehicles traveling between states or provinces. |
| IFTA (International Fuel Tax Agreement) | 365 days from the issue date | Valid for one year from the issue date. Requires fuel tax reporting for interstate and international travel. |
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:
| South Dakota Permit Fees | ||
|---|---|---|
| Permit Type | Fees | Details |
| Single Trip Oversize / Overweight Permit | $25.00 per permit or $200.00 for a book of 10 permits. Additional overweight fee: $0.02 per ton-mile | Applies if vehicle weight exceeds: 40,000 lbs on 2 axles, 60,000 lbs on 3 axles, 80,000 lbs on 4 axles, 85,000 lbs on 5 axles, 90,000 lbs on 6 axles, or 95,000 lbs or more on 7 axles. |
| Emergency Single-Trip Oversize/Overweight Permit | Varies | Allows movement of non-divisible oversize and/or overweight loads on state truck highways to emergency locations within South Dakota. Contact 605-773-3704 for more information. |
| Annual Oversize for Non-Divisible Loads | $60.00 | Covers annual transport of non-divisible oversize loads. |
| Longer Combination Vehicle Permit | $100.00 for a pack of 10 permits | Only issued by South Dakota Highway Patrol. |
| Overweight Booster Axle Permit | $60.00 | Annual permit for overweight booster axles. |
| Annual Lift Axle or Variable Load Axle Permit | $60.00 | Can be obtained from any official permit office, though not valid on interstate highways. |
| Manufactured Home Permit | $60.00 Annual per truck (for homes up to 16' wide, 15' high, 80' long) | $25.00 for a one-time permit for homes exceeding these dimensions. |
| Slow Movement on Interstate Permit | $60.00 Annual, $25.00 Single Trip | Permit for slow-moving vehicles on interstate highways. |
| Annual Oversized Trailer Permit | $60.00 | Annual permit for oversized trailers. |
| Overlength Semitrailer Permit | $60.00 Annual, $25.00 Single Trip | Annual or single-trip permits for overlength semitrailers. |
South Dakota Overweight Fine
South Dakota charges a civil penalty for vehicles that exceed the legal weight limit. An overweight violation is a Class 2 misdemeanor and may result in a fine of up to $500, up to 30 days in jail, or both. Additional civil penalties are based on the amount of overweight.
| Pounds Overweight | Civil Penalty |
|---|---|
| 1,001–3,000 lbs | 5 cents per pound |
| 3,001–4,000 lbs | 15 cents per pound |
| 4,001–5,000 lbs | 22.5 cents per pound |
| 5,001–10,000 lbs | 37.5 cents per pound |
| Over 10,000 lbs | 75 cents per pound |
The civil penalty is assessed at the single rate corresponding to the highest weight violation. For example, a vehicle 4,200 pounds overweight would have a civil penalty of $945.00.
Frequently Ask Questions about South Carolina Oversize Overweight Permits
Oversize permits can be obtained online through our website overweightpermit.com or by calling us at (630) 800 4551
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 overweightpermit.com or by calling us at (630) 800 4551
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 overweightpermit.com or by calling us at (630) 800 4551
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. Overweight Permit provides affordable and accurate permit pricing for overweight hauls.
The phone number for assistance is (630) 800 4551.
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. Overweight Permit can issue temporary trip permits quickly for out-of-state carriers.
To get your South Dakota oversize permits fast and at competitive prices, contact Overweight Permit at (630) 800 4551. 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 (630) 800 4551.
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 overweightpermit.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.
15.Does South Dakota require fuel permits?
If your vehicle is not registered under the International Fuel Tax Agreement (IFTA), you must obtain a fuel permit to travel through South Dakota. Overweight Permit 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.