Size/Weight limits - Ohio

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	65' operated by a regional transit authority	65' operated by a regional transit authority
Straight Trucks	50'	50'
Straight truck and trailer	65'	65'
Tractor-semitrailer combinations	No limit with legal trailer	No limit with legal trailer
Semitrailer	53'	53'
Tractor-twin-trailer combination	No limit	No limit
Trailers of twin-trailer combinations	28' 6"	28' 6"
Boat-transporter combination
Overhang limitations
Stinger-steered boat-transporter
Overhang limitations
Auto-transporter	65'	65'
Overhang limitations	3' front, 4' rear	3' front, 4' rear
Stinger-steered auto-transporter	75'	75'
Overhang limitations	3' front, 4' rear	3' front, 4' rear
Saddlemount	97'	97' 75' on a non-interstate or state route
General overhang limitations
Drawbar	15'	15'
Dromedary
Kingpin to rearaxle
Length special limitations or restrictions
Weight:	Interstate and Defense Highways	State and Other Supplemental Highways
Steer axle
Single axle	20,000	20,000
Tandem axle	34,000	34,000 Spaced more than 4' apart, and weighed simultaneously. Plus 1,000 lbs per foot or fraction thereof over 4', up to 40,000 lbs.
Tridem axle
Gross vehicle weight	80,000	80,000
Load per inch width of tire	650	650
Per wheel
Tolerances
APU allowance
Natural gas allowance	NS	2,000
Weight special limitations or restrictions

Special limitations or restrictions

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* Tandem axle means two or more consecutive axles whose centers may be included between parallel transverse vertical planes spaced more than forty inches but not more than ninety-six inches apart, extending across the full width of the vehicle.

* Two or more consecutive axles:

The maximum gross weight on any two or more consecutive axles is determined by application of the Federal Bridge Formula:

** On any two successive axles:

1. Spaced four feet or less apart, and weighed simultaneously, 24,000 pounds;
2. Spaced more than four feet apart, and weighed simultaneously, 34,000 pounds, plus 1,000 pounds per foot or fraction thereof, over four feet, not to exceed 40,000 pounds.

*** On any three successive load-bearing axles designed to equalize the load between such axles and spaced so that each such axle of the three-axle group is more than four feet from the next axle in the three-axle group and so that the spacing between the first axle and the third axle of the three-axle group is no more than nine feet, and with such load-bearing three-axle group weighed simultaneously as a unit:

1. 48,000 pounds, with the total weight of vehicle and load not exceeding 38,000 pounds plus an additional 900 pounds for each foot of spacing between the front axle and the rearmost axle of the vehicle; or
2. As an alternative to (1) above, 42,500 pounds, if part of a six-axle vehicle combination with at least 20 feet of spacing between the front axle and rearmost axle, with the total weight of vehicle and load not exceeding 54,000 pounds plus an additional 600 pounds for each foot of spacing between the front axle and the rearmost axle of the vehicle.

The total weight of vehicle and load utilizing any combination of axles, other than as provided for three-axle groups, shall not exceed 38,000 pounds plus an additional 900 pounds for each foot of spacing between the front axle and rearmost axle of the vehicle.

When a vehicle is towing another vehicle, the drawbar or other connection must limit the spacing between the nearest axles of the respective vehicles to a distance not in excess of twelve feet and six inches.

****Ohio Turnpike	Limits
Width:	8‘ 6“
Height:	13‘ 6“
Length:
Trucks and 2 Axles Buses	40‘
Buses with 3 or more axles	45‘
Tractor-semitrailer combinations	75‘ (Length includes any overhang)
Tractor-twin-trailer combination	85‘ (no allowed overhang)
Other combinations of vehicles coupled together	65‘
Auto-transporter combination	75‘ (plus load overhang of 3‘ in front, 4‘ at rear)
Special limitations or restrictions	Most toll interchanges have signs reading: “OVERSIZE VEHICLES PARK HERE — USE PHONE TO REGISTER.” All oversize and overweight vehicles must comply. The phone located by the sign automatically connects to toll personnel at the interchange. If the toll interchange does not have a registration phone, the vehicle operator needs to park on the right shoulder (berm) and walk up to the main building and notify the toll personnel. For additional size and weight limits for the Ohio turnpike, see: https://roar-assets-auto.rbl.ms/documents/14718/spec_haul_perm_info.pdf
Weight:
Steering axle	N/S
Single axle	21,000
Tandem axle (4‘ or less spread)	24,000
Tandem axle (greater than 4‘ but less than 8‘)	34,000
Gross vehicle weight	90,000

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