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Size/Weight limits - Louisiana

RegSenseSizes and weightsState InfoBest ResultsFocus AreaFleet OperationsEnglishLouisianaTransportationSize and Weight Limits

DimensionNational NetworkState and Other Supplemental Highways
Width:8' 6"8' 6"
Height:14'
Interstate only		13' 6"
Length:National NetworkOn All Other
Bus45'45'
Articulated bus
Straight Trucks45'45'
Straight truck and trailerN/S
30' trailer		N/S
30' trailer
Tractor-semitrailer combinationsNo limit
with legal trailer		65'
Semitrailer59' 6"N/S
Tractor-twin-trailer combinationNo limit
with legal trailer		Not allowed
Trailers of twin-trailer combinations30'Not allowed
Boat-transporter combination75'75'
Overhang limitations3' front, 4' rear3' front, 4' rear
Stinger-steered boat-transporter
Overhang limitations
Auto-transporter
Overhang limitations
Stinger-steered auto-transporter75'75'
Overhang limitations3' front, 4' rear3' front, 4' rear
Saddlemount
General overhang limitations4' front, 8' rear
15' pole trailers, 20' forest products		4' front, 8' rear
15' pole trailers, 20' forest products
Drawbar15'15'
Dromedary
Kingpin to rearaxle
Length special limitations or restrictions
Weight: Interstate and Defense HighwaysOn All Other
Steer axle650
pounds per tire inch		650
pounds per tire inch
Single axle20,000 22,000
Tandem axle34,000 37,000
Tridem axle42,00045,000
Gross vehicle weight80,000 80,000
Load per inch width of tire650650
Per wheel
TolerancesNoneN/S
APU allowance
Natural gas allowance2,0002,000
Weight special limitations or restrictionsReasonable access — not to exceed 10 miles for food, fuel, repairs, and rest, unless otherwise prohibited. Household goods’ carriers shall have unrestricted access for loading and unloading purposes only, unless otherwise prohibited.

The law requires reasonable distribution of axle weight of tandem, tridem, and quadrum axle groups.

View agency contact information

['Size and Weight Limits']
['Sizes and weights']
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