Department of Public Services
Printable Version
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Table of Maximum
Allowable Gross Axle Loading
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Normal Loading When Restrictions Are Not In Force
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Loadings When Restrictions Are In Force
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Spacing Between Axles
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Class "A" on Special Designated Tandem Routes
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Class "B" on all other Routes
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Class "A" on SPecial Designated Tandem Routes
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Class "B"
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Rigid Pavement
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Flexible & Traffic Bound
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9 Feet or Over |
18,000 lbs.
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18,000 lbs.
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13,500 lbs.
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13,500 lbs.
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11,700 lbs.
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More than 3-1/2 feet, the combined weight shall not exceed: |
16,000
(see footnote)
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13,000 lbs.
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12,000 lbs.
(see footnote)
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9,750 lbs.
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8, 450 lbs.
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When less than 3-1/2 feet, the combined weight shall not exceed: |
18,000 lbs.
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18,000 lbs.
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13,500 lbs.
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13,500 lbs.
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11,700 lbs.
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Maximum Load on any wheel shall not exceed (lbs. per inch of tire width): |
700 lbs.
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700 lbs.
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525 lbs.
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525 lbs.
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450 lbs.
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On any combination of vehicle only one (1) tandem assembly shall be permitted at
this gross weight and no other tandem assembly shall exceed the loadings listed
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Exceptions:
When normal loadings are in effect, on Class "A" tandem route highways, on any legal
combination of vehicles, only one tandem axle assembly shall be permitted at a gross
permissable weight of 16,000 lbs. for any axle of such assembly and no other tandem
axle assembly in such combination of vehicles shall exeed a gross weight of 13,000
lbs. for any axle of such assembly.
Two axle spaced less than 3 feet and 6 inches apart shall not exceeed a gross combined
weight of 18,000 lbs.
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When the maximum gross weight of a tractor semi-trailer combination of vehicles
with load does not exceed 73,280 lbs., 2 tandem axle assemblies shall be permitted
on such designated highways at a gross permissible weight of 16,000 lbs. for any
such axle
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Department Organizations
Robert Conrad
Director