['Size and Weight Limits']
['Sizes and weights']
12/11/2023
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| Dimension | National Network | State and Other Supplemental Highways |
| Width: | 8' 6" | 8' 6" |
| Height: | 13' 6" | 13' 6" |
| Length: | National Network | State and Other Supplemental Highways |
| Bus | 45' | 45' |
| Articulated bus | ||
| Straight Trucks | 40' | 40' |
| Straight truck and trailer | ||
| Tractor-semitrailer combinations | No limit | No limit |
| Semitrailer | 53' see KPRA | 48' 6" |
| Tractor-twin-trailer combination | No limit | No limit on designated roadways only |
| Trailers of twin-trailer combinations | 28' 6" | 28' 6" on designated roadways only |
| Boat-transporter combination | ||
| Overhang limitations | ||
| Stinger-steered boat-transporter | ||
| Overhang limitations | ||
| Auto-transporter | ||
| Overhang limitations | ||
| Stinger-steered auto-transporter | ||
| Overhang limitations | ||
| Saddlemount | up to 3 | NS |
| General overhang limitations | 3' front, 6' rear overhang | 3' front, 6' rear overhang |
| Drawbar | 15' | 15' |
| Dromedary | ||
| Kingpin to rearaxle | 41' to the center of the rear axle | NS |
| Length special limitations or restrictions | An automobile transporter may transport cargo or general freight on a backhaul, provided it complies with the weight limitations for a truck tractor and semitrailer combination. | |
| Weight: | Interstate and Defense Highways | State and Other Supplemental Highways |
| Steer axle | ||
| Single axle | 22,400 | 22,400 |
| Tandem axle | 36,000 | 36,000 |
| Tridem axle | ||
| Gross vehicle weight | 80,000 | 80,000 |
| Load per inch width of tire | ||
| Per wheel | ||
| Tolerances | ||
| APU allowance | ||
| Natural gas allowance | 2,000 | 2,000 |
| Weight special limitations or restrictions | ||
Bridge rules
| Distance in feet between the extremes of any group of 2 or more consecutive axles | Maximum load in pounds carried on any group of 2 or more consecutive axles | |||||
|---|---|---|---|---|---|---|
| 2 axles | 3 axles | 4 axles | 5 axles | 6 axles | 7 axles | |
| 4 | 44000 | |||||
| 5 | 44000 | |||||
| 6 | 44000 | |||||
| 7 | 44000 | |||||
| 8 and less | 44000 | 44800 | ||||
| More than 8 | 44800 | 44800 | ||||
| 9 | 44800 | 44800 | ||||
| 10 | 44800 | 44800 | ||||
| 11 | 44800 | 44800 | ||||
| 12 | 44800 | 45000 | 50000 | |||
| 13 | 44800 | 46000 | 50500 | |||
| 14 | 44800 | 46500 | 51500 | |||
| 15 | 44800 | 47500 | 52000 | |||
| 16 | 44800 | 48000 | 52500 | 58000 | ||
| 17 | 44800 | 49000 | 53500 | 58500 | ||
| 18 | 44800 | 49500 | 54000 | 59000 | ||
| 19 | 44800 | 50500 | 55500 | 60000 | ||
| 20 | 44800 | 51000 | 56000 | 60500 | 66000 | |
| 21 | 52000 | 56500 | 61000 | 66500 | ||
| 22 | 52500 | 57500 | 61500 | 67000 | ||
| 23 | 53500 | 58000 | 62500 | 68000 | ||
| 24 | 54500 | 58500 | 63000 | 68500 | 74000 | |
| 25 | 55000 | 59500 | 63500 | 69000 | 74500 | |
| 26 | 55500 | 60000 | 64000 | 69500 | 75000 | |
| 27 | 56500 | 60500 | 65000 | 70000 | 76000 | |
| 28 | 57000 | 61500 | 65500 | 71000 | 76500 | |
| 29 | 58000 | 62000 | 66000 | 71500 | 77000 | |
| 30 | 58500 | 62500 | 66500 | 72000 | 77500 | |
| 31 | 59500 | 63500 | 67500 | 72500 | 78000 | |
| 32 | 60000 | 64000 | 68000 | 73000 | 78500 | |
| 33 | 61000 | 64500 | 68500 | 74000 | 79500 | |
| 34 | 61500 | 65500 | 69000 | 74500 | 80000 | |
| 35 | 62500 | 68000 | 70000 | 75000 | ||
| 36 | 63000 | 68000 | 70500 | 75500 | ||
| 37 | 64000 | 68000 | 71000 | 76000 | ||
| 38 | 64500 | 68000 | 71500 | 77000 | ||
| 39 | 65500 | 68000 | 72500 | 77500 | ||
| 40 | 66000 | 68500 | 73000 | 78000 | ||
| 41 | 69500 | 73500 | 78500 | |||
| 42 | 70000 | 74500 | 79000 | |||
| 43 | 70500 | 75000 | 80000 | |||
| 44 | 71500 | 75500 | ||||
| 45 | 72000 | 76000 | ||||
| 46 | 72500 | 77000 | ||||
| 47 | 73500 | 77500 | ||||
| 48 | 74000 | 78000 | ||||
| 49 | 74500 | 78500 | ||||
| 50 | 75500 | 79500 | ||||
| 51 | 76000 | 80000 | ||||
| 52 | 76500 | |||||
| 53 | 77500 | |||||
| 54 | 78000 | |||||
| 55 | 78500 | |||||
| 56 | 79500 | |||||
| 57 | 80000 | |||||
 |
| W = the overall gross weight on any group of two or more consecutive axles to the nearest 500 pounds; L = the distance in feet between the extremes of any group of two or more consecutive axles; N = the number of axles in the group under consideration. |
1The permissible loads are computed to the nearest 500 pounds. The modification consists in limiting the maximum load on any single to 22,400 pounds.
['Size and Weight Limits']
['Sizes and weights']