OAR 734-076-0145
Maximum Weights
(1)
Maximum weight for towing vehicles is as follows:(a)
Class A and Class D tow vehicles must conform to ORS 818.010 (Maximum allowable weight);(b)
All towing vehicles must conform to ORS 818.010 (Maximum allowable weight) when towing a disabled unit by draw bar or tow chain method; and(c)
When any portion of the weight of the disabled unit rests upon a Class B or Class C tow vehicle:(A)
A single drive axle may not exceed 600 pounds per inch of tire width not to exceed 23,000 pounds on a single axle;(B)
A tandem drive axle may not exceed 600 pounds per inch of tire width not to exceed 23,000 pounds on each axle or 46,000 pounds on the tandem axle;(C)
Any group of three or more axles may not exceed 600 pounds per inch of tire width not to exceed the weight allowed by Weight Table 3 (permit attachment); and(D)
The steering axle of the towing vehicle must carry sufficient weight required to maintain a safe operation and at no time will weigh less than 3,000 pounds for Class B tow vehicles or 3,500 pounds for Class C tow vehicles.(2)
Maximum weights for disabled units are as follows:(a)
When being towed by Class A or any Class D tow vehicle, all weights must conform to ORS 818.010 (Maximum allowable weight);(b)
When being towed by a Class B or Class C tow vehicle using a draw bar or tow chain method, the weight of the disabled unit must conform to ORS 818.010 (Maximum allowable weight) or to the transportation variance permit issued to the disabled unit;(c)
When a Class B or Class C tow vehicle carries a portion of the weight of the disabled unit, the first load bearing axle(s) of the disabled unit may weigh 600 pounds per inch of tire width, not to exceed 21,500 pounds on any single axle or 43,000 pounds on a tandem axle, unless otherwise provided by a transportation variance permit issued to the disabled unit; and(d)
When being towed by a log truck or full log truck “towing vehicle,” the weight of the disabled unit must conform to ORS 818.010 (Maximum allowable weight) or to the transportation variance permit issued to the disabled unit.(3)
When operating under a CTP, the combination maximum weight for the tow vehicle and disabled vehicle must not exceed the weight allowed in section (1) and (2) of this rule.(4)
When operating under a STP the single drive axle must not exceed:(a)
600 pounds per inch of tire width,(b)
23,000 pounds on each axle;(c)
46,000 pounds on the tandem axle and group axle; or(d)
The gross weight authorized by permit Weight Table 4.(5)
A load recovery vehicle consisting of a truck-tractor semitrailer may transport a divisible or non-divisible load. Except when operating under a STP, the weight must not exceed:(a)
600 pounds per inch of tire width;(b)
21,500 pounds on a single axle or 43,000 pounds on a tandem axle;(c)
98,000 pounds; and(d)
The weight stated in Permit Weight Table 3.(6)
A solo recovery vehicle may transport a non-divisible load. The weight must not exceed:(a)
600 pounds per inch of tire width;(b)
21,500 pounds on a single axle,;(c)
43,000 pounds on a tandem axle ; and(d)
The weight stated in Permit Weight Table 3.(7)
Lift axles must be deployed when axle weights exceed that allowed under ORS 818.010 (Maximum allowable weight).
Source:
Rule 734-076-0145 — Maximum Weights, https://secure.sos.state.or.us/oard/view.action?ruleNumber=734-076-0145.