Utah Administrative Code (Current through November 1, 2019) |
R909. Transportation, Motor Carrier |
R909-2. Utah Size and Weight Rule |
R909-2-4. Legal Size Vehicle Dimensions
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(1) Maximum legal vehicle dimensions, laden and un-laden, that may be operated without special permits on Utah Highways:
(a) height: 14 feet
(b) width: 8 feet 6 inches; and
(c) length: See Table 1 Legal Size Vehicle Dimensions
TABLE 1
Legal Size Vehicle Dimensions
Vehicle Maximum Comments
Length
Single motor 45 feet Measured from bumper to bumper.
vehicle
Semi-Trailer 53 feet A trailer may not exceed 53 feet.
Double trailer 61 feet Measured from the front of the first
combinations trailer to the rear of the second
trailer, excluding appurtenances.
There is no overall length
limitation on a truck tractor and
double trailer combination when
the trailers coupled together
measure 61 feet or less.
Stinger-steered 80 feet Stinger-steered Automobile
Automobile or less transports are measured
Transporter from bumper to bumper and may
have a front overhang of 4 feet or
less and a rear overhang of 6
feet or less, with a maximum
vehicle length of 80 feet or less
(excluding overhangs).
Saddle Mount 97 feet This will allow a maximum of three
saddle mount vehicles, one power
unit and one full mount.
Truck trailer 65 feet Measured from bumper to bumper.
combination
Dromedary unit 65 feet Truck tractor, unloaded box deck
and trailer. A dromedary unit is
considered a truck trailer
configuration whether laden or
un-laden.
75 feet Dromedary units transporting Class
1 Explosives or munitions related
Security materials, as specified by
the Department of Defense, are
allowed up to 75 feet of overall
length on the interstates. US
highways and reasonable access
routes without requiring a permit.
Reasonable access means to the
Interstate or US highway system.
All other 65 feet Measured from bumper to bumper.
combinations
including
recreational
vehicles
Overhang 3 feet Overhang may not carry any load
front extending more than 3 feet beyond
6 feet the front of the power unit or more
rear than 6 feet beyond the rear of the
bed or body of the vehicle.
Drawbar 15 feet The drawbar or other connection
between any two vehicles, one of
which is towing or drawing the other
on a highway, may not exceed 15 feet
in length from one vehicle to the
other, measured from box to box or
frame to frame, except in the case
of a connection between any two
vehicles transporting poles, pipe,
machinery, or structural material
that cannot be dismembered when
transported upon a pole trailer.
Commercial 82 feet Consisting of a trailer transporter
delivery or less towing unit and 2 trailers or
of light and semitrailers with a total weight
medium duty not to exceed 26,000 lbs;
and in trailers which the trailers or
semitrailers carry no property and
constitute inventory property of a
manufacturer, distributer, or dealer
of such trailers or semitrailers,
may have an overall length
limitation of 82 feet or less
on a towaway trailer transporter
combination.