OAR 734-082-0040
Combination of Vehicles
(1)
The following vehicles or combinations of vehicles may be authorized for continuous trip permits over authorized routes provided the width does not exceed 14 feet, the height does not exceed 14 feet or, except for self-propelled fixed load vehicles limited by OAR 734-082-0039 (Self-Propelled Fixed-Load Vehicles), 14 feet 6 inches on specifically authorized routes, and the overall length does not exceed that stated below:(a)
A solo vehicle must not exceed 40 feet and vehicle inclusive of load must not exceed 60 feet in overall length.(b)
Truck-tractor and semitrailer combinations, which may include an auxiliary axle, must not exceed the length limits as shown on the reverse of Group Map 1 or Route Map 7, whichever is greater, and the semitrailer must not exceed 53 feet in length including the auxiliary axle. An auxiliary axle attached to the rear of a trailer must be included in the measurement of the trailer unless the combination measurement exceeds 53 feet. Group Map 1 and Route Map 7 available from the Over-Dimension Permit Unit, are by reference made a part of Division 82 rules.(c)
Motor truck and trailer must not exceed 75 feet in overall length.(d)
Truck-tractor with semitrailer and trailer combinations must not exceed the length limits shown on the reverse of Group Map 1 or Route Map 7, whichever is greater.(e)
Passenger or light vehicles towing any trailer must not exceed 70 feet in overall length.(f)
An unladen combination of vehicles used to transport non-divisible loads may consist of the truck-tractor, jeep axle(s), a trailer, booster axle(s), dolly(s), steering axle(s), flip axle(s) or a flip neck extension, pinned axle(s) and other equipment needed to transport the non-divisible load. Trailer length must not exceed 62 feet. The combination must be reduced to the shortest length practicable; however overall length must not exceed 105 feet. Unladen movement is authorized with equipment needed to legally transport the non-divisible load loaded on the trailer.(2)
When the combination of vehicles includes jeep axles, or other vehicles of a size or weight not authorized by section (1) of this rule, movement must be by single trip permit only.
Source:
Rule 734-082-0040 — Combination of Vehicles, https://secure.sos.state.or.us/oard/view.action?ruleNumber=734-082-0040.