Wyoming Administrative Code › Agency 045 - Transportation, Dept. of › Sub-Agency 0004 - Motor Carrier › Chapter 5 - SIZE AND WEIGHT LIMITATIONS OF VEHICLES › Section 5-3 - Statutory Size and Weight Limits (Exclusive of Permits)

Current through July 13, 2024
(a)
				Statutory size limits include vehicles, loads, load-holding devices, and
				bumpers; but do not include approved safety devices.
(b) Permits are required for vehicles and
				loads exceeding statutory limits.
(c) The following are statutory size and
				weight limits:
(i) Width:
8 1/2
feet
(102 inches)
(ii)
				Height:
14 feet
(iii)
				Length:
(A)
60 feet
for single
				units or semi-trailers in a truck-tractor and semi- trailer
				combination.
(B)
81 feet
for a semi-trailer, trailer, or double semi-trailer combined length in a
				truck-tractor and semi-trailer, trailer, or double semi-trailer combination
				including the connecting mechanism. (Pole trailers shall be allowed to operate
				under this provision when used with a truck-tractor.)
48 feet
maximum for a semi-trailer.
40 feet
maximum for a trailer or second
				  semi-trailer (not including the connecting mechanism).
(C) For consecutive towed vehicles, if the
				weight difference between the vehicles exceeds 5,000 pounds, the heavier towed
				vehicle shall be directly behind the truck-tractor, and the lighter towed
				vehicle shall be last.
(D)
85
				feet
for any combination of vehicles other than those listed in the
				preceding subparagraphs (A) and (B).
(E) Except as provided in (F) immediately
				following, no combination shall consist of more than 3 single
				vehicles.
(F)
97 feet
for saddlemount combinations consisting of no more than 3 saddlemounts.
				Additional vehicles may be transported when safely loaded on the frame on a
				vehicle in a properly assembled saddlemount combination.
(iv) Weight:
(A)
20,000 pounds
for a single
				axle.
(B)
36,000
				pounds
for a tandem axle.
(C)
42,000 pounds
for a triple
				axle.
(D) For 3 or more axles used
				on bridges measuring more than 8 1/2 feet, refer to
Gross Weight Table
				1
.
When applicable, all other axle groups are governed by the
				  number of axles and axle measurements in accordance with
Gross Weight
				  Table 1
.
(E)
10,000 pounds
each wheel.
(F)
8,000 pounds
each wheel with
				solid tires. The wheels of all vehicles except those operated at a speed of
				less than 10 miles per hour shall be equipped with pneumatic tires.
(G) For each tire:
(I)
Steering tires - 750 pounds per
				inch of width as stamped by manufacturer.
(II)
Other tires - 600 pounds per inch
				of width as stamped by manufacturer.
(H) Gross Weight:
(I)
Up to 117,000 pounds
on the
				interstate in accordance with the formula limitations found in
Gross
				Weight Table 1
.
(II)
Up to 117,000 pounds
on the primary and secondary highways in
				accordance with the formula limitations found in
Gross Weight Table
				1
.
(III)
Up to 80,000
				pounds
on primary and secondary highways in accordance with the formula
				limitations found in
Gross Weight Table 2
.
(I) The following weight tables establish the
				maximum legal gross weight for vehicles.
Gross Weight Table 1
requires checking all consecutive groups of axles to determine legal limits and
				is referred to as the "inner bridge" system.
(J) Subject to the limitation imposed by the
				axle load, no vehicle or combination of vehicles shall be operated on
				interstate or national defense highways exceeding the maximum weight allowed
				under federal law, unless in compliance with
Table 1
corresponding
				to a distance in feet between the extremes of any axle groups measured
				longitudinally, to the nearest foot, except that vehicles with 2 consecutive
				sets of tandem axles may carry a gross load of 36,000 pounds each if the
				distance between the first and last axles of the consecutive sets of tandem
				axles is 36 feet or more.
(K)
				Vehicles operating on primary and secondary highways may operate in accordance
				with
Table 1
or
Table 2
at the discretion of the
				operator, as follows:
(I) For vehicles
				operating under
Gross Weight Table 1
, the total gross weight in
				pounds imposed on the highway by any group of 2 or more consecutive axles on a
				vehicle, or combination of vehicles, shall not exceed the value given in
Gross Weight Table 1
, corresponding to a distance in feet between
				the extremes of any axle groups measured longitudinally, to the nearest foot.
				An exception allows that 2 consecutive sets of tandem axles may carry a gross
				load of 36,000 pounds each if the distance between the first and last axles of
				the consecutive sets of tandem axles is 36 feet or more;
(II) For vehicles operating under the
				provisions of
Gross Weight Table 2
, the total gross weight in
				pounds imposed on the highway by a vehicle, or combination of vehicles, shall
				not exceed the value given in
Gross Weight Table 2
, corresponding
				to the distance in feet between the extremes of the vehicle, or combination of
				vehicles, measured longitudinally to the nearest foot;
(III) Vehicles with 2 consecutive sets of
				tandem axles with a distance of less than 22 feet between the first and last
				axles of the consecutive sets shall comply with
Gross Weight Table
				1
.