Trucking Regulations in Connecticut
Complete guide to weight limits, speed limits, permits, chain laws, and special rules for commercial truck drivers operating in Connecticut.
Max Gross Weight
80,000 lbs
Truck Speed Limit
65 mph (same as cars on interstates)
Diesel Tax
$0.491 per gallon diesel (among highest in US) + federal
Weight & Size Limits in Connecticut
| Measurement | Limit |
|---|---|
| Max Gross Vehicle Weight | 80,000 lbs |
| Max Axle Weight | 22,400 lbs single axle, 36,000 lbs tandem |
| Max Trailer Length | 53 ft trailer on designated network |
| Max Width | 102 inches |
| Max Height | 13'6" |
Speed Limits for Trucks in Connecticut
Rural Interstate
65 mph
Urban Interstate
55 mph
Truck-Specific
65 mph (same as cars on interstates)
Fuel Tax & Tolls in Connecticut
Diesel Fuel Tax
$0.491 per gallon diesel (among highest in US) + federal
Toll Roads & Bridges
No tolls currently (tolls removed from Connecticut Turnpike in 1985). Truck toll proposals have been debated in legislature.
Chain Laws & Weather Requirements
No mandatory chain law. Chains or cable chains permitted during winter storms.
Oversize & Overweight Permits
CT DOT Special Permits Unit. Strict routing required due to low bridges and narrow roads. Bridge postings are common on secondary routes.
Port of Entry & Weigh Stations
No fixed weigh stations. Connecticut State Police commercial vehicle unit uses portable scales and conducts roadside inspections.
Special Rules for Connecticut
Hazmat Route Restrictions
Hazmat restricted on Route 15 (Merritt/Wilbur Cross). Designated hazmat routes through Hartford, New Haven, and Bridgeport metro areas. Tunnel restrictions on hazmat placards.
Rest Area & Parking Rules
Rest areas and service plazas limit truck parking to 4 hours. Severe truck parking shortage statewide. No dedicated anti-idling law but follows regional NESCAUM standards.
DOT Inspection Frequency
Moderate. CT State Police focus on I-95 corridor, I-91, and I-84 interchange areas. Targeted enforcement during CVSA events.
Looking for Trucking Jobs in Connecticut?
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Frequently Asked Questions About Connecticut Trucking Regulations
What trucks are prohibited on the Merritt Parkway?
The Merritt Parkway (Route 15) and Wilbur Cross Parkway prohibit all commercial vehicles, including box trucks and vehicles over 7,500 lbs. The low overpasses (as low as 10'6") make it physically impossible for most commercial vehicles anyway. GPS routes should be set to commercial vehicle mode to avoid these parkways.
What is Connecticut's diesel fuel tax?
Connecticut has one of the highest diesel taxes in the nation at $0.491 per gallon at the state level, plus the federal excise tax. This makes refueling in Connecticut significantly more expensive than neighboring states.
Are there weigh stations in Connecticut?
Connecticut does not operate fixed weigh stations. Instead, the CT State Police commercial vehicle unit uses portable scales at various locations and conducts roadside inspections, particularly on I-95, I-91, and I-84.
Is truck parking a problem in Connecticut?
Yes, Connecticut has a severe truck parking shortage. Rest area and service plaza parking is limited to 4 hours. Finding overnight parking in the I-95 corridor can be extremely difficult, especially during evening hours. Drivers should plan parking in advance.
What are the low bridge concerns in Connecticut?
Connecticut has numerous low bridges on secondary routes, some as low as 10'6" on the Merritt Parkway and 12'6" on various town roads. Drivers must use commercial GPS routing and watch for posted bridge clearances. Bridge strikes are a common and costly problem in the state.