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Simplify Your Oversize/Overweight Loads
Dimensions: Width: 8' 6" Height: 14' Overall length not limited' Maximum Length-trailer: 53'' Overhang: Front 3', Rear 4'
Weights: Single Axle: 20,000 lb. Tandem axle: 34,000 lb. Tridem: 42,000 lb. Max Gross Weight: 80,000 lb.
South Dakota Permit Department Contact Information
605-698-3925
Fax: 605-698-3473
8:00 AM - 5:00 PM Central
Pilot cars are required for:
Vehicles over 16 feet wide traveling on the interstate highway system.
Vehicles over 20 feet wide traveling on the state highway system .
Note: A vehicle that exceeds a width of 10 feet must be accompanied by a front escort when operating on state highways in the Black Hills area.
Escort vehicles are required in front on two-lane highways or in the rear on divided highways.
The permit-issuing authority may also require escort vehicles because of route limitations, traffic conditions, or unusual permit vehicle configuration conditions.
Note: Loads with heights of up to 16 ft., 6 in. may travel on interstate highways continuously—no escort is specified.
While there is no specific mentioned of especially long loads, there are very likely pilot car requirements and/or restrictions for these over-dimensions.
Maximum Allowable Weights
Weight Limit for Steer Axle Tire: 600 lb./inch of tire width.
Weight Limit for tires on other axles: 500 lb./inch of tire width.
Maximum Permit Weight Allowed
Only single trip permits are issued for the movement of an overweight vehicle on Interstate Highways.
Single Trip Permit required – Weight in excess of 80,000 lb. GVW
Note: A permit is available to allow a motor vehicle to exceed 80,000 lb. when traveling on the Interstate Highways. The permit does not allow a motor vehicle to exceed its legal axle weight, legal tire weight, or the weight allowed by the Bridge Weight Formula. Neither does it allow a motor vehicle to exceed its commercial motor vehicle licensed weight.
If the motor vehicle exceeds the weight of 40,000 lb. on two axles, 60,000 lb. on three axles, 80,000 lb. on four axles, 85,000 lb. on five axles, 90,000 lb. on six axles, and 95,000 or more lb. on seven or more axles, an additional overweight fee is charged at a rate of two cents per ton-mile for the excess weight.
LCV permitted to operate at up to 129,000 lb.
Axle and axle group weights must not be exceeded.
GVW 129,000 lb.
Notes:
A semitrailer or trailer may not weigh 3,000 lb. more than the trailer immediately ahead of it.
Axles that are spaced eight feet or less apart must weigh within 500 lb. of each other.
Carriers who are IFTA license holders must properly display their decals and carry their IFTA license in the vehicles at all times. If for any reason a carrier does not display decals or have their IFTA license, the carrier must purchase a temporary fuel permit.
Temporary fuel permits cost $20 and are valid for 72 hours or until a carrier leaves the state, whichever comes first.
Mileage and tax-paid fuel purchased while operating under a temporary permit still must be included on the quarterly tax return.
Retain all temporary fuel permits in your files for audit verification.
Carriers who intend to use a vehicle for intrastate travel for a single trip may purchase a trip permit that allows the vehicle to travel within the jurisdiction from a point of origin to a point of destination.
The fee for a trip permit is $15 per trip.
Trip permits may be obtained by calling the 24-hour Permit Center at (605) 698-3925.
Note: If a carrier is going to use the vehicle only in an intrastate operation, they may qualify for a commercial permit.
Overdimension Only — Violation is a Class 2 Misdemeanor punishable by a $200 fine and/or 30 days in jail.
A vehicle that is overweight on a tire, wheel, axle, or axle group is not allowed to proceed until it is made legal by either shifting the load or unloading part of the load.
An overweight violation is a Class 2 misdemeanor, and is punishable by a $200 fine or 30 days in jail, or both. In addition, a civil penalty in the following amount is charged:
WEIGHT FINE
1,000 – 3,000 lb. $0.05 per lb.
3,001 – 4,000 lb. $0.15 per lb.
4,001 – 5,000 lb. $0.22,5 per lb.
5,001 – 10,000 lb. $0.37,5 per lb.
Over 10,000 lb. $0.75 per lb.
The penalty is assessed at a single rate according to the cents-per-lb. penalty for the highest weight violation. A motor vehicle which is overweight on a tire, wheel, axle, or axle group(s) will not be allowed to proceed until it is made legal. The penalty is assessed at a single rate according to the cents-per-lb. penalty for the highest weight violation.
Warning Lights
For night operations:
For loads extending 4 ft. or more, one or more amber lamps and reflectors on the forward extremities of the load, and one or more red lamps and reflectors visible from the rear and side.
One or more amber lamps and reflectors visible from the front, side, and rear, marking any portion of the projecting load that extends beyond its foremost and rearmost edge.
Amber lamps and reflectors visible from the front, side, and rear, marking any portion of the projecting load which extends beyond its foremost and rearmost edge, including projections.
"Oversized Load" Banner
Warning signs must be displayed on all vehicles issued an oversize permit if they exceed 95 feet in length or 12 ft. in width or if they will operate during nighttime hours.
Operation at nighttime requires reflectorized or lighted signs.
Acceptable sign text includes “OVERSIZE LOAD”, “OVERSIZED LOAD”, “WIDE LOAD”, and “LONG LOAD”.
One sign must be mounted on the front of the vehicle and be visible to oncoming traffic. Another sign must be mounted on the rear and be visible to traffic approaching from the rear.
Signs must be at least 18 in. high by 84 in. wide, and be legible at 500 feet. Letters 10 in. high, 1 3/8 in. brushstroke. Background: Yellow
Flag Requirements
Red or orange warning flags, at least 18 in. by 18 in. in size, must be displayed on all oversized vehicles or loads.
Flags required on all corners of vehicles or loads wider than 8ft. 6 in. and on the load extending beyond the width of the hauling vehicle, and load front projections exceeding 3 in. or more than 4' beyond the rear of the trailer. Flags are required for front and rear projections of 2 ft. or more: 1 flag if less than 2 ft. wide, two flags if wider than 2 ft.
Running Hours and Restrictions
Movement permitted one-half hour before sunrise to one-half hour after sunset, including Saturday and Sunday.
Loads that are only overweight may operate 24/7.
Loads not exceeding 10′ wide, 14’6″ high, 110′ overall length may travel on interstate highways continuously.
Any specific restrictions will be noted on the permit.
Chains and “Traction Devices”
Tire chains or "sufficient traction devices" are allowed. Chains are permitted if conditions tending to cause a skid are present.
Minimum tread
Mounted tires must not show evidence having a cut into the fabric, or worn so that the fabric is visible, having knots or bulges in the sidewall or tread, or having a minimum tread depth less than 2/32 of an inch on any two adjacent tread grooves.
In addition, the tires mounted on the front axle of a motor exceeding a gross weight of twenty-six thousand pounds shall have a minimum tread depth of not less than 3/32 of an inch on any two adjacent tread grooves.
Spring Load Restrictions - Timing and Duration
It is the Department's position to not implement Spring Load Restrictions any earlier than necessary. The Department monitors the daily high/low temperatures at numerous locations throughout the state.
When posted, axle weights may be restricted to 6, 7, or 8 tons and are identified by color on the Load Limit Restriction Map found at the Web page below.
South Dakota DOT Spring Load Limits: http://www.sddot.com/travelers/loadlimits/
The division of highway patrol may issue annual permits for the movement of overweight loads. The Department of Transportation may specify the routes on which a vehicle with such permits may travel.
Dimensions: Depends on the route
Cost:
Annual Oversize for Non-Divisible Loads - $ 60.00
Annual Oversized Trailer - $ 60.00
Time, it takes to receive: 1 business day
Mailing method: online
Commodity specific? Truck specific
Need to obtain a route? No
The State urges drivers to practice the following safety tips courtesy of the South Dakota Department of Transportation when traveling through road work zones:
Annual permit
A permit-issuing authority may issue an annual permit which allows the movement on state trunk highways of an oversize permit vehicle consisting of a licensed motorized vehicle towing a manufactured home. The permit vehicle may not exceed a height of 15 ft.
The manufactured home, excluding all nonstructural appendages and safety devices, may not exceed a width of 16 ft. or a length of 80 ft. The manufactured home, including all nonstructural appendages except for safety devices, may not exceed a width of 16 ft. 6 in. or a length of 80 ft. 6 in.
The motorized vehicle towing a manufactured home must be of sufficient size and power to safely handle the movement of the manufactured home and to maintain minimum speeds where posted.
Length and Weight limits
Over 8 ft. wide but not more than 10 ft. wide must be towed by a motor vehicle of no less than 6,000 pounds gross vehicle weight rating (GVWR), manufactured homes
Over 10 ft. wide but not more than 12 ft. wide must be towed by a motor vehicle of no less than 8,000 pounds GVWR, and manufactured homes
Over 12 ft. wide but not more than 18 ft. wide must be towed by a motor vehicle of no less than 9,000 pounds GVWR.
The permit is not valid for movement when the wind velocity exceeds 25 mph.
Before moving a permit vehicle, the permit holder must ascertain in a manner satisfactory to the permit holder that no width or height restrictions exist on the route which will prohibit the proposed move.
Fee: Unless otherwise specified, the fee for an extended period permit is $60.
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Email: [email protected]