Agency of Transportation
VTrans
Vermont • United States of America
The Vermont Agency of Transportation (VTrans) manages approximately 2,700 centerline miles of state highways in one of the nation's smallest and most rural states, connecting New England to Quebec, Canada. Key freight corridors include I-89, I-91, and US-7, which are critical for dairy, timber, and manufactured goods. VTrans administers commercial vehicle regulations, manages seasonal weight limits critical during Vermont's spring mud season, and operates the VT511 road condition system. The agency coordinates with Quebec transportation authorities on cross-border freight facilitation at Derby Line and other border crossings. Vermont's rural road network requires careful weight limit management to preserve aging infrastructure.
| Official Website | https://vtrans.vermont.gov/ |
|---|---|
| Data API | https://vtrans.vermont.gov/operations/rwis |
| Founded | 1969 |
| Headquarters | Burlington |
Available Data
Social Media
- @511VT — 511VT
Vermont 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 | 22400 lbs |
| Tandem Axle | 36000 lbs |
Dimensional Limits
| Category | Limit |
|---|---|
| Max Height | 13.5 ft |
| Max Width | 8.5 ft |
| Max Length (Single Unit) | 40 ft |
| Max Length (Combination) | 65 ft |
OS/OW Permits
Seasonal Restrictions Mar, Apr, May
Vermont's spring weight restriction program ("mud season") is one of the most extensive in the US. Restrictions typically begin in March and continue through May on state and town roads, with northern Vermont lifting later than southern regions. Town roads can remain posted into late May or early June in the Northeast Kingdom. VTrans publishes a spring load restriction map and enforcement is strict.
Weigh Station Bypass
31¢/gal
Member
Special Exemptions
Notable Rules
Vermont allows higher axle weights on paved state roads (22,400 lbs single, 36,000 lbs tandem). Mud season spring restrictions are extensive and strictly enforced — operating overweight on posted town roads carries significant fines. I-89 and I-91 are the primary freight corridors. Many covered bridges (historic) have posted weight limits well below legal maximums. White Mountain region routes can be challenging in winter.