OR Rev Stat § 818.010 (2021)
2021 Oregon Revised Statutes|Volume : 19 - Utilities, Vehicle Code, Watercraft, Aviation|Chapter 818 - Vehicle Limits|Section 818.010 - Maximum allowable weight.

This section establishes maximum weight limitations for purposes of ORS 818.020. Except as provided in subsections (4) and (5) of this section or where an exemption under ORS 818.030 specifically provides otherwise, a loaded weight that exceeds the maximum allowable weight as determined by any of the following tables exceeds the maximum weight limitations for purposes of ORS 818.020: (1) A vehicle exceeds the maximum allowable weight if the loaded weight of an axle or tandem axle is in excess of that determined by the formula in the following table: ______________________________________________________________________________ Table I The manufacturer’s side wall tire rating (but not to exceed 600 pounds) ´ the sum of the tire widths, in inches, of the wheels of the axle or tandem axles = maximum allowable weight. ______________________________________________________________________________ For purposes of the table in this subsection tire width is determined by measuring the cross section of the tread of a wheel, the outer face of a track or the runner of a sled except for the following: (a) For solid tires made of elastic material, tire width is determined by measuring the cross section between the flanges of the circumference of a wheel at the base of the tire as customarily measured and rated by the manufacturers of motor vehicles and tires. (b) For pneumatic tires made of elastic material, tire width is the diameter of the cross section of the tire as customarily measured and rated by the manufacturers of motor vehicles and tires. (2) A vehicle or combination of vehicles exceeds the maximum allowable weight if the loaded weight measured at any of the places designated on the following table exceeds the maximum allowable weight established on the table for measurement at that place: ______________________________________________________________________________ Table II Place for measurement Maximum allowable of weight weight in pounds Any individual wheel 10,000 Any axle 20,000 Any tandem axles 34,000 ______________________________________________________________________________ (3) A vehicle, group of axles or combination of vehicles exceeds the maximum allowable weight if the loaded weight is in excess of maximum allowable weight as determined by the method in the following table that produces the lower allowable maximum weight: ______________________________________________________________________________ Table III (Maximum allowable weight determined by whichever of the following methods produces lower weight:) Method A The sum of permissible axle, tandem axles or group of axles weights as determined under Table I or II of this section is the maximum allowable weight. OR Method B Distance in feet between first and Maximum allowable weight in pounds last axle for number of axles in group of axles: in group of axles: 2 3 4 5 6 7 or Axles Axles Axles Axles Axles More Axles 4 34,000 5 34,000 6 34,000 7 34,000 8 and less 34,000 34,000 More than 8 38,000 42,000 9 39,000 42,500 10 40,000 43,500 11 40,000 44,000 12 40,000 45,000 50,000 13 40,000 45,500 50,500 14 40,000 46,500 51,500 15 40,000 47,000 52,000 16 40,000 48,000 52,500 58,000 17 40,000 48,500 53,500 58,500 18 40,000 49,500 54,000 59,000 19 40,000 50,000 54,500 60,000 20 40,000 51,000 55,500 60,500 66,000 21 40,000 51,500 56,000 61,000 66,500 22 40,000 52,500 56,500 61,500 67,000 23 40,000 53,000 57,500 62,500 68,000 24 40,000 54,000 58,000 63,000 68,500 74,000 25 40,000 54,500 58,500 63,500 69,000 74,500 26 40,000 55,500 59,500 64,000 69,500 75,000 27 40,000 56,000 60,000 65,000 70,000 75,500 28 40,000 57,000 60,500 65,500 71,000 76,500 29 40,000 57,500 61,500 66,000 71,500 77,000 30 40,000 58,500 62,000 66,500 72,000 77,500 31 40,000 59,000 62,500 67,500 72,500 78,000 32 40,000 60,000 63,500 68,000 73,000 78,500 33 40,000 60,000 64,000 68,500 74,000 79,000 34 40,000 60,000 64,500 69,000 74,500 80,000 35 40,000 60,000 65,500 70,000 75,000 80,000 36 40,000 60,000 66,000 70,500 75,500 80,000 37 40,000 60,000 66,500 71,000 76,000 80,000 38 40,000 60,000 67,500 71,500 77,000 80,000 39 40,000 60,000 68,000 72,500 77,500 80,000 40 40,000 60,000 68,500 73,000 78,000 80,000 41 40,000 60,000 69,500 73,500 78,500 80,000 42 40,000 60,000 70,000 74,000 79,000 80,000 43 40,000 60,000 70,500 75,000 80,000 80,000 44 40,000 60,000 71,500 75,500 80,000 80,000 45 40,000 60,000 72,000 76,000 80,000 80,000 46 40,000 60,000 72,500 76,500 80,000 80,000 47 40,000 60,000 73,500 77,500 80,000 80,000 48 40,000 60,000 74,000 78,000 80,000 80,000 49 40,000 60,000 74,500 78,500 80,000 80,000 50 40,000 60,000 75,500 79,000 80,000 80,000 51 40,000 60,000 76,000 80,000 80,000 80,000 52 40,000 60,000 76,500 80,000 80,000 80,000 53 40,000 60,000 77,500 80,000 80,000 80,000 54 40,000 60,000 78,000 80,000 80,000 80,000 55 40,000 60,000 78,500 80,000 80,000 80,000 56 40,000 60,000 79,500 80,000 80,000 80,000 57 or over 40,000 60,000 80,000 80,000 80,000 80,000 ______________________________________________________________________________ For the purpose of the table in this subsection, the distance between axles shall be measured to the nearest foot. When a fractional measurement is exactly one-half foot the next larger whole number shall be used. (4) Notwithstanding any other provision of this section, a vehicle with farm vehicle registration issued under ORS 805.300 or with out-of-state farm vehicle registration exceeds the maximum allowable weight if the loaded weight of the vehicle or combination of vehicles exceeds the amount shown in the following table: ______________________________________________________________________________ Distance in feet between the extremes of any group of Maximum allowable weight in pounds 2 or more for number of axles in group of axles: consecutive axles: 2 3 4 5 or Axles Axles Axles More Axles 4 37,800 5 37,800 6 37,800 7 37,800 8 37,800 42,000 9 37,800 42,400 10 37,800 43,500 11 44,000 12 45,000 50,000 13 56,470 56,470 56,470 14 57,940 57,940 57,940 15 59,400 59,400 59,400 16 60,610 60,610 60,610 17 61,820 61,820 61,820 18 63,140 63,140 63,140 19 64,530 64,530 64,530 20 65,450 65,450 65,450 21 66,000 66,000 66,330 22 66,000 66,000 67,250 23 66,000 66,000 67,880 24 66,000 66,000 68,510 25 66,000 66,000 69,150 26 66,000 66,000 69,770 27 66,000 66,000 70,400 28 66,000 66,000 70,950 29 66,000 66,000 71,500 30 72,050 31 72,600 32 73,150 33 73,700 34 74,250 35 74,800 36 75,350 37 75,900 38 76,450 39 77,000 40 77,550 41 78,100 42 78,650 43 and over 80,000 ______________________________________________________________________________ Weights authorized under this subsection are authorized only if the vehicle is transporting field-loaded agricultural products in Malheur County. Weights authorized under this subsection are not authorized for vehicles traveling on Interstate 84 or U.S. Highway 95. A vehicle otherwise described in this subsection that is operating at a weight not listed in this subsection must comply with subsection (1) of this section. (5) Notwithstanding any other provision of this section, the maximum wheel load for the front axle of the power unit on a vehicle used for curbside solid waste or recycling collection that has tires that are at least 12-1/2 inches wide shall be the load limit established by the tire manufacturer, as molded on at least one sidewall of the tire, up to a maximum of 10,000 pounds, as long as the tire is approved by the Department of Transportation pursuant to ORS 818.012. [1983 c.338 §508; 1985 c.16 §264; 1985 c.172 §6a; 1987 c.66 §1; 1995 c.489 §1; 1999 c.725 §1; 2001 c.335 §1; 2001 c.665 §1]