Federal & State Regulations | Size & weight limits - Connecticut

Dimension	National Network	State and Other Supplemental Highways
Width:	8' 6"	8' 6"
Height:	13' 6"	13' 6"
Length:	National Network	All Highways
Bus
Articulated bus
Straight Trucks	45'	45'
Straight truck and trailer	65'	65'
Tractor-semitrailer combinations	No limit With 53' semitrailer	No limit With 48' semitrailer
Semitrailer	53' see KPRA	48'
Tractor-twin-trailer combination	No limit With 28' semitrailers	NS
Trailers of twin-trailer combinations	28'	NS
Boat-transporter combination
Overhang limitations
Stinger-steered boat-transporter
Overhang limitations
Auto-transporter	65' conventional fifth wheel	65' conventional fifth wheel
Overhang limitations	4' rear, 3' front extendable ramps used to achieve overhangs are excluded from overall length and must be retracted when not in use	4' rear, 3' front extendable ramps used to achieve overhangs are excluded from overall length and must be retracted when not in use
Stinger-steered auto-transporter	75'	75'
Overhang limitations
Saddlemount
General overhang limitations
Drawbar	20' total allowed distance between vehicles	NS
Dromedary
Kingpin to rearaxle	43' to rearmost axle with wheels in contact with the road surface	NS
Length special limitations or restrictions
Weight:	Interstate and Defense Highways	All Highways
Steer axle
Single axle	18,000 If axles are less than 6' apart, 22,400 if axles spaced 6' or greater	18,000 If axles are less than 6' apart, 22,400 if axles spaced 6' or greater
Tandem axle
Tridem axle
Gross vehicle weight	80,000	80,000
Load per inch width of tire	600 Per inch of width	600 Per inch of width
Per wheel
Tolerances
APU allowance	550	550
Natural gas allowance
Weight special limitations or restrictions

['Size and Weight Limits']

['Sizes and weights']

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Size & weight limits - Connecticut