Connecticut Oversize & Heavy Haul Management
Important: We are not a permit service and we do not arrange permits for carriers. All information provided below is for informational purposes only. Always read permits and provisions carefully as we cannot guarantee the accuracy of information provided below.
Connecticut DOT Phone: 860-594-2880
Transporting oversize or heavy haul loads through Connecticut takes careful planning to ensure compliance with state regulators. Whether you are overseeing oversize load deliveries, heavy equipment movements or machinery hauling service transportation, it is important to know the states permit policies, travel restrictions, and escort requirements.
Permit Validity & Operating Hours
- Permit Validity: 3 days
- Operating Hours: Daylight hours (½ hour after sunrise to ½ hour before sunset)
- No weekend or holiday travel: For overweight-only loads
- Weekend Pilot Program: Some loads (≤12′ wide, ≤13′-6″ high, ≤80′ long, ≤120,000 lbs) can travel until noon on weekends—must be requested when ordering the permit
- No travel on major holidays: New Year’s, Memorial Day, Independence Day, etc.
Legal Dimensions for Heavy Haul Trucks
- Length: 48′ standard trailer. 53′ semi-trailers legal on interstates if the kingpin-to-rear-axle distance ≤43′. Violation results in a $750 fine if empty without a permit.
- Overhang: Trailers 48′+ with >4′ overhang require flags (day) and lights (night).
- Width: 8′-6″ (legal), up to 15′-11″ (permitted).
- Height: 13′-6″ (max for buildings; no overheight permits issued for structures).
- Weight Limits:
- Single axle: 22,400 lbs (legal), up to 25,000 lbs (permitted)
- Tandem axle: 36,000 lbs (legal), up to 45,000 lbs (permitted)
Routine Permit Limits & Super Loads
- Max Length: 130′ (beyond 120′ requires oversize load escort services).
- Super Load classification: Over 14′ wide, 14′ high, or 120′ long.
- Over 140,000 lbs: Requires an engineer review.
Oversize Load Escort Requirements
- By Length:
- 100′ long → 1 escort
- 120′ long → 2 escorts
- By Highway Type:
- Divided highways:
- 80′ long → 1 escort
- 100′ long → 2 escorts
- Undivided highways:
- 80′ long → 1 escort
- 100′ long → 2 escorts
- Divided highways:
- Width-based Escorts:
- 12′ → 1 escort (divided), 2 (undivided)
- 13′-6″ → 2 escorts
- 14′-11″ → 3 escorts
- Height-based Escorts:
- 14′ → 1 escort with pole + route survey
- 15′-3″ → State Police escorts required
Safety & Compliance for Oversize Freight Solutions
- Signage & Flags:
- “Oversize Load” signs required for loads >10′ wide or >13′-6″ high.
- Flags on all corners for oversize/overweight loads.
- Blade Attachments:
- Up to 14′ wide → blade can stay attached.
- If overweight, blade must be removed if it reduces weight.
Key Takeaways for Oversize Transport Logistics
- Verify escort needs based on dimensions.
- Apply for permits early, especially for super loads or weekend moves.
- Plan routes carefully—avoid restricted hours and holidays.
- Follow marking & safety regulations to avoid fines.
Whether you’re handling heavy haul project management, specialized transport services, or oversize freight solutions, staying informed on Connecticut’s regulations ensures compliant and efficient oversized load transportation.