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MAXIMUM WEIGHT LIMITATIONS SUMMARY - page 4 / 4

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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

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

even foot, and when 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'

4'

1

2

3

Example No. 3

1.

2. 3. 4. 5. 6 .

Maximum weight

that may be i

13,000 lbs. By a

ny other axle,

Maximum weight

by the group

Maximum weight

by the group

Maximum weight

by the group

Maximum weight

by the group

Maximum weight

by the group

mposed by a truck tractor steering axle is 20,000 lbs. of axles 1 and 2 is 33,000 lbs. of axles 2 and 3 with 28 feet spacing is 40,000 lbs. of axles 3 and 4 with 4 feet spacing is 34,000 lbs. of axles 1, 2 and 3 is 53,000 lbs. of axles 2, 3 and 4 is 54,000 lbs.

10'

28'

4'

1

2

3

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. Maximum weight by the group of axles 1 and 2 is 33,000 lbs. Maximum weight by the group of axles 2 and 3 with 4 feet spacing is 34,000 lbs. Maximum weight by the group of axles 4 and 5 with 4 feet spacing is 34,000 lbs. Since there is 36 feet between the group of axles 2, 3, 4 and 5 each consecutive

2. 3. 4. 5.

6.

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. Maximum weight that this vehicle may impose is 80,000 lbs. See chart on previous page (axles 1 to 5 have 51 feet spacing).

Example No. 4

1

28'

15'

4

2

4'

5

4'

3

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.

1

10'

2

22'

3

7'

4

22'

5

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