If you’re driving through South Carolina and want to spend the night at a game, you’ll be out of luck, as there are no major professional sports teams in the state. But, there is a zoological park where more than 2,000 animals live in natural habitats with no bars or cages, a 66-mile canoe and kayak trail and a 1,500-year-old oak tree you can visit. But to drive an oversized load the state, you’ll need to secure a South Carolina oversized permit.
At The Permit Company, we help you obtain oversize and overweight truck permits by working directly with state and local agencies on your behalf. If you have any questions about moving oversized loads through South Carolina or securing a permit, we have the answers.
1. How long are oversize permits valid for in South Carolina?
Single trip permits are valid for seven consecutive days.
2. What are the legal dimensions for loads in South Carolina?
The legal limits in South Carolina are as follows:
- Gross weight: 80,000 lbs. on designated highways, 80,600 lbs. on all other roads*
- Width: 8’6” on all roads
- Height: 13’6” on all roads
- Length: 40’ for single units and buses on all roads; 53’ for semi-trailers** on all roads, 28’6” for twins and doubles on designated highways (not allowed on other roads); 75’ for auto and boat transporters on all roads; Rocky Mountain doubles, turnpike doubles and triples not allowed on any roads; and 75’ for saddle mounts on all roads.
*Federal Bridge Formula applies.
**53′ trailers must be equipped with a rear underride guard. The distance between the kingpin and the center of the rear axle assembly or to the center of the tandem axle assembly, if equipped with two axles, must be no greater than 41’.
3. What are the permit limits for loads in South Carolina?
The routine-issue permit limits in South Carolina are as follows:
- Single: 20,000 lbs.
- Tandem: 40,000 lbs.
- Tridem: 60,000 lbs.
- Quad: 80,000 lbs.
- Gross weight
- 5 axles: 90,000 lbs.
- 6 axles: 110,000 lbs.
- 7 axles: 130,000 lbs.
- Loads on pole trailers: 125’
- Mobile homes: 100’
- Trailers less than 48’: 15’ rear overhang with escort
- 2 axle trucks: 40’
- 3 axle trucks: 45’
- Width: 16’
- Height: Must be at least 6″ less than any overhead structure on the route
- Overhang: 15′ rear overhang and 3′ front overhang on a trailer 53′ or less. Trailers longer than 53′ are allowed to have 1/3 of the load overhang on the rear of the trailer.
*Additional weight may be requested after Bridge Department review.
SASHTO permit limits: 100′ long, 14′ high, 14′ wide, 120,000 lbs.
If load exceeds any of these dimensions or weights, refer to the section on superloads.
4. Is continuous travel allowed for oversize permits in South Carolina?
Travel is permitted one half hour after sunrise to one half hour before sunset, Monday through Saturday for standard issue permits.
Loads 16′ wide or less may travel from sunrise to sunset on Saturdays. Loads weighing up to 130,000 lbs. that are within the legal dimensions may travel continuously, but the movement must be requested. Loads weighing more than 130,000 lbs. are prohibited from moving on Saturdays.
Travel is restricted from noon the day before the following holidays until noon the day after: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas Day.
5. When are escorts needed in South Carolina?
On two-lane highways:
- 1 front escort is needed for widths 12’-14’
On all highways:
- 1 front and 1 rear escort (2 total) are needed for widths of 14’-16’
- 1 front and 1 rear escort (2 total) and 2 police escorts are needed for widths more than 16’. The approval of resident engineers and the state oversize permit department are also needed.
- 1 rear escort and flags or an amber light are needed for trailers less than 48’ long with an overhang of 15’ or on trailers that are 48’ or 53’ long with a 10’ overhang
NOTE: Permittee is responsible for vertical clearances.
6. What is a superload in South Carolina?
Superloads are considered to be any load more than 130,000 lbs. on 7 axles, 125′ long and 16′ wide. Height restrictions will depend on the planned routes. Include a diagram with axle spacing, axle weight and proposed routes with your permit application. If the load weighs more than 130,000 lbs., the application goes to the Bridge Department for approval. The superload fee is $3.00 per 1,000 lbs.
Proof of insurance is required when gross vehicle weight is 180,000 lbs. or more and/or the overall width is 16′ or more.
Applications require 7 to 10 days for processing.
If you need help in getting an oversize permit in South Carolina or have a question about permits in any other states, give us a call at (800) 359-9407 or send us an email.