Free SP4075 Maximum Weight Limitations Summary - Wisconsin

MAXIMUM WEIGHT LIMITATIONS SUMMARY
On Class "A" Highways [348.15(1)(b)]
SP4075 3/2007 Corresponding Wisconsin Statute numbers in brackets [ ].

Wisconsin Department of Transportation

General Maximum Weight Restrictions: Although there is the possibility of increased weight on a particular wheel or axle or group of axles due to practical operating problems, including, but not limited to, accumulation of snow, ice, mud or dirt, the use of tire chains or minor shifting of load, the following maximum weights include absolutely all weights allowable [348.15(4)]. Class "B" highway weight limitations are 60 per cent of class "A" highway weight limitations [348.16(2)]. Any one wheel or wheels supporting one end of an axle [348.15(3)(a)]............................................................... 11,000 Lbs. * Truck Tractor Steering Axle [348.15(3)(b)]................................................................................................ 13,000 Lbs. ** Single Axle (See Note) [348.15(3)(b)]....................................................................................................... 20,000 Lbs. Maximum Gross Vehicle Weight of all Axles [348.15(3)(c)].............................................................................. 80,000 Lbs. * Truck tractor steering axle may exceed 13,000 lbs. if the manufacturer's rated capacity of the axle and the tires are sufficient to carry the weight, but not to exceed 20,000 lbs. [348.15(3)(b)]. 21,000 lbs. in the case of a vehicle or combination of vehicles transporting exclusively milk from the point of production to the primary market and the return of dairy supplies and dairy products from such primary market to the farm (not applicable to the National System of Interstate and Defense Highways) [348.15(3)(bg)]. 21,500 lbs. in the case of a vehicle or combination of vehicles transporting exclusively peeled or unpeeled forest products cut crosswise or exclusively scrap metal (not applicable to the National System of Interstate and Defense Highways) [348.15(3)(br)].

**

**

Measuring: The distances between the foremost and rearmost of a group of axles shall be measured between axle centers to the nearest even foot, and when a fraction is exactly one-half foot, the nearest larger whole number shall be used [348.15(5m)]. Note: "Axle" includes all wheels of a vehicle imposing weight on the highway, the centers of which are included between 2 parallel transverse vertical planes less than 42 inches apart, extending across the full width of vehicle and load. Therefore, two axles less than 42 inches apart are considered to be one axle and can carry no more than a single axle [348.01(2)(a)]. "Tandem axle" means any 2 or more consecutive axles whose centers are 42 or more inches apart and which are individually attached to or articulated from, or both, a common attachment to the vehicle including a connecting mechanism designed to equalize the load between axles [348.01(2)(c)]. Any axle of a vehicle or combination of vehicles which does not impose on the highway at least 8% of the gross weight of the vehicle or combination of vehicles may not be counted as an axle [348.15(8)]. Request form SP4370 when hauling under the provisions of 348.15(3)(br), exclusively peeled or unpeeled forest products cut crosswise OR exclusively scrap metal. Request form SP4415 for the motor vehicle size regulation summary. Request form SP4416 when hauling under permits issued pursuant to 348.27(9m)(a)1, raw forest and agricultural products. Request form SP4417 when hauling under the provisions of 348.15(3)(bg), transporting exclusively milk from point of production to primary market and return of dairy supplies and dairy products from such primary market to the farm. Permits Issued by Division of Motor Vehicles: Most permits for oversize/overweight (O/O) vehicles are issued by the maintenance authority for the class of roadway on which the O/O vehicle proposes to travel. With some exceptions, permits for operation on State, U.S. and Interstate highways are issued by the Permit Unit of the Motor Carrier Services Section of the Division of Motor Vehicles. Applications may be submitted in several ways: * Online through a secured extranet application. For information, call 608-266-7320. Once you are enrolled, this application is available to you 24/7. Many permits are automatically analyzed and approved. * In person or by overnight mail to WisDOT Permits, 4802 Sheboygan Ave., Room 151, Madison, WI 53705. Office hours are 7:45 a.m. to 4:30 p.m. Monday through Friday. * By mail to WisDOT Permits, PO Box 7980, Madison, WI 53707-7980.

MAXIMUM WEIGHT LIMITATIONS CHART
Vehicle Not In Combination

Column A - Distance in Feet between foremost and rearmost axles of a group Column B - 2 consecutive axles: of a 2-axle vehicle; OR of any vehicle having a total of 3 or more axles Column C Column D -

Column E Column F Column G Column H -

5 consecutive axles: of a 5-axle vehicle;
OR of any vehicle having a total of 6 or more axles

6 consecutive axles of any vehicle having a total
of 6 or more axles

3 consecutive axles: of a 3-axle vehicle;
OR of any vehicle having a total of 4 or more axles

7 consecutive axles: of a 7-axle vehicle;
OR of any vehicle having a total of 7 or more axles

4 consecutive axles: of a 4-axle vehicle;
OR of any vehicle having a total of 5 or more axles

8 consecutive axles: of an 8-axle vehicle;
OR of any vehicle having a total of 8 or more axles

A - Feet 4 5 6 7 7.5-8 8.1-8.4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

B - 2 axles 34,000 34,000 34,000 34,000 35,000 38,000 39,000 40,000*

Maximum Gross Weight in Pounds on a Group of Axles C - 3 axles D - 4 axles E - 5 axles F - 6 axles

G - 7 axles

H - 8 axles

37,000 38,500 42,000 43,000 43,500 44,500 45,000 46,000 46,500 47,500 48,000 49,000 49,500 50,500 51,500 52,200 52,900 53,600 54,300 55,000 55,700 56,500 57,100 58,000 58,500 59,500 60,000**

Instructions: Use this chart to determine maximum gross weight in pounds, on a group of axles for a vehicle not in combination, on Class "A" highways. See examples of vehicles below. * Maximum at 10 or more feet between axles ** Maximum at 32 or more feet between axles *** Maximum at 34 or more feet between axles

55,500 60,000 60,500 61,500 62,000 63,000 63,500 64,500 65,000 66,000 66,500 67,500 68,500 69,000 69,500 70,500 71,300 72,000 72,700 73,000 73,000**

64,200 71,700 72,200 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000**

73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000 73,000**

73,000 73,000 73,500 74,000 74,500 75,000 76,000 76,500 77,000 77,500 78,000 78,500 79,500 80,000***

80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000**

20,000 pounds for a single axle

MAXIMUM WEIGHT LIMITATIONS CHART
Combination of Vehicles
Column A - Distance in Feet between foremost and rearmost axles of a group Column B - 2 consecutive axles of any combination of vehicles having a total of 3 or more axles Column C Column D Column E Column F Column G Column H -

5 consecutive axles of any combination of vehicles
having a total of 5 or more axles

6 consecutive axles of any combination of vehicles
having a total of 6 or more axles

3 consecutive axles of any combination of vehicles
having a total of 4 or more axles

7 consecutive axles of any combination of vehicles
having a total of 7 or more axles

4 consecutive axles of any combination of vehicles
having a total of 5 or more axles

8 consecutive axles of any combination of vehicles
having a total of 8 or more axles

A - Feet 4 5 6 7 7.5-8 8.1-8.4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

. . .

Maximum Gross Weight in Pounds on a Group of Axles D - 4 axles B - 2 axles C - 3 axles E - 5 axles 34,000 34,000 34,000 34,000 37,000 35,000 38,500 38,000 42,000 39,000 43,000 48,500 40,000* 43,500 49,500 44,500 50,000 45,000 50,500 62,500 46,000 51,500 62,500 46,500 52,000 62,500 47,500 52,500 62,500 48,000 53,500 63,200 49,000 54,100 64,400 49,500 55,100 65,000 50,500 56,000 65,700 51,500 56,800 66,900 52,200 57,600 67,700 52,900 58,400 68,900 53,600 59,200 70,000 54,300 60,000 71,000 55,000 60,800 72,000 55,700 61,600 72,800 56,500 62,400 73,000 57,100 63,200 73,000 58,000 64,000 73,000 58,500 64,000 73,000 59,500 64,000 73,000 60,000** 64,000 73,000 64,500 73,000 65,500 73,000 66,000 73,000 66,500 73,000 67,500 73,000 68,000 73,000 68,500 73,000 69,500 73,500 70,000 74,500 70,500 75,000 71,500 75,500 72,000 76,000 72,500 77,000 73,500 77,500 74,000 78,000 74,500 78,500 75,500 79,500 76,000**** 80,000****

F - 6 axles

G - 7 axles

H - 8 axles

Instructions: Use this chart to determine maximum gross weight in pounds, on a group of axles for a combination of vehicles, on Class "A" highways. See examples of combination of vehicles below. * Maximum at 10 or ** Maximum at 32 or *** Maximum at 34 or **** Maximum at 51 or more more more more feet feet feet feet between between between between axles axles axles axles

64,000 65,000 65,500 66,000 66,900 67,700 68,900 70,000 71,000 72,000 72,800 73,000 73,000 73,000 73,000 73,000 74,000 74,500 75,000 75,500 76,000 77,000 77,500 78,000 78,500 79,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000****

73,000 73,000 73,500 74,000 74,500 75,000 76,000 76,500 77,000 77,500 78,000 78,500 79,500 80,000***

80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000**

2 consecutive sets of tandem axles may impose on the highway a gross load of 34,000 pounds each if the overall distance between the first and last axles of such consecutive sets of tandem axles is 36 feet or more [348.15(3)(d)]

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Examples of Maximum Weight that may be imposed on Class "A" Highways By axle, axle groups and gross weight of various vehicles
Measuring: [348.15(5m)] The distances between the foremost and rearmost of a group of axles shall be measured between axle CENTERS to the nearest even foot, and when a fraction is exactly one-half foot, the nearest larger whole number shall be used. Example: 50 feet 5 inches = 50 feet; 50 feet 6 inches = 51 feet.

Example No. 1 1. Maximum weight that may be imposed by any axle of this vehicle is 20,000 lbs. 2. Maximum weight by the group of axles 1 and 2 when 10 feet or more apart is 40,000 lbs.

10' 1 2

Example No. 2 1. Maximum weight that may be imposed by any axle of this vehicle is 20,000 lbs. 2. Maximum weight by the group of axles 1 and 2 with 10 feet spacing is 40,000 lbs. 3. Maximum weight by the group of axles 2 and 3 with 4 feet spacing is 34,000 lbs. 4. Maximum weight by the group of axles 1, 2 and 3 with a total spacing of 14 feet is 46,500 lbs.

10' 1 2

4' 3

Example No. 3 1. Maximum weight that may be imposed by a truck tractor steering axle is 13,000 lbs. By any other axle, 20,000 lbs. 2. Maximum weight by the group of axles 1 and 2 is 33,000 lbs. 3. Maximum weight by the group of axles 2 and 3 with 28 feet spacing is 40,000 lbs. 4. Maximum weight by the group of axles 3 and 4 with 4 feet spacing is 34,000 lbs. 5. Maximum weight by the group of axles 1, 2 and 3 is 53,000 lbs. 6. Maximum weight by the group of axles 2, 3 and 4 is 54,000 lbs. 10' 1 2 28' 3 4' 4

Example No. 4 1. Maximum weight that may be imposed by a truck tractor steering axle is 13,000 lbs. By any other axle, 20,000 lbs. 2. Maximum weight by the group of axles 1 and 2 is 33,000 lbs. 3. Maximum weight by the group of axles 2 and 3 with 4 feet spacing is 34,000 lbs. 4. Maximum weight by the group of axles 4 and 5 with 4 feet spacing is 34,000 lbs. 5. Since there is 36 feet between the group of axles 2, 3, 4 and 5 each consecutive set of tandem axles may impose 34,000 lbs. To attain 80,000 lbs., the remaining 12,000 lbs. may be imposed only by axle no. 1. 6. Maximum weight that this vehicle may impose is 80,000 lbs. See chart on previous page (axles 1 to 5 have 51 feet spacing).

15' 1 2

4' 3

28' 4

4' 5

Example No. 5 1. Maximum weight that may be imposed by a truck tractor steering axle is 13,000 lbs. By any other axle, 20,000 lbs. 2. Maximum weight by the group of axles 1 and 2 is 33,000 lbs. 3. Maximum weight by the group of axles 2 and 3 with 22 feet spacing is 40,000 lbs. 4. Maximum weight by the group of axles 3 and 4 with 7 feet spacing is 34,000 lbs. 5. Maximum weight by the group of axles 4 and 5 is 40,000 lbs. 6. Maximum weight by the group of axles 2, 3 and 4 OR 3, 4, and 5 is 58,000 lbs. 7. Maximum weight by the group of axles 2, 3, 4 and 5 is 76,000 lbs. 8. Maximum weight is 80,000 lbs.

10' 1 2

22' 3

7' 4

22' 5