Department of Transportation
SCDOT
South Carolina • United States of America
The South Carolina Department of Transportation (SCDOT) manages over 42,000 miles of roads — one of the largest state-maintained road networks per capita — serving a rapidly growing Southeastern economy. Key freight corridors include I-85, I-95, I-26, I-20, and I-77. South Carolina's Port of Charleston is one of the fastest-growing container ports on the East Coast, with Volvo, BMW, and Boeing manufacturing facilities generating significant freight demand. SCDOT administers commercial vehicle permits, manages bridge weight limits, and provides SC511 for real-time traffic information. The department plays a vital role in supporting the automotive corridor stretching from Greenville to Greer.
| Official Website | https://www.scdot.org/ |
|---|---|
| Data API | https://www.511sc.org/ |
| Founded | 1917 |
| Headquarters | Columbia |
Available Data
Social Media
- @SCDOTLowCountry — SCDOT Low Country
South Carolina Trucking Regulations
Size & weight limits, OS/OW permits, and seasonal restrictions for commercial vehicles
Weight Limits
| Category | Limit |
|---|---|
| Max Gross Vehicle Weight | 80000 lbs |
| Single Axle | 20000 lbs |
| Tandem Axle | 34000 lbs |
Dimensional Limits
| Category | Limit |
|---|---|
| Max Height | 13.6 ft |
| Max Width | 8.5 ft |
| Max Length (Single Unit) | 40 ft |
| Max Length (Combination) | 65 ft |
OS/OW Permits
Weigh Station Bypass
28¢/gal
Member
Special Exemptions
Notable Rules
The Port of Charleston is one of the fastest-growing container ports on the East Coast, generating significant container haul on I-26 between Charleston and Columbia. BMW's manufacturing plant in Spartanburg generates specialized auto-transport demand. I-85, I-26, I-77, and I-95 are primary freight corridors. Greenville-Spartanburg is a growing advanced manufacturing freight hub. No spring weight restrictions due to warm climate.