A. Unless exempt under this Section or A.R.S. § 28-1091(C), § 28-1093(D), or § 28-1095(A)(6), a person shall obtain and carry an oversize or overweight special permit issued by the department under this chapter if transporting a vehicle or load exceeding any dimension provided under Table 1 on a county highway under the jurisdiction of the department.
B. A permittee and a driver of an oversize or overweight special permitted vehicle shall comply with all applicable:
1. Safety requirements provided under Article 3, and
2. Transport provisions provided under Article 4.
C. An oversize or overweight special permit is not required if crossing a county highway at a level grade and no highway structures are involved.
D. An oversize or overweight special permit is not required for snow removal equipment operated by one of the following:
1. An Arizona state agency,
2. An Arizona county,
3. An Arizona city, or
4. An Arizona municipality other than a city.
E. The special permit exemption provided under subsection D applies only to snow removal equipment traveling on its own wheels and:
1. Operating for the purpose of clearing snow or ice,
2. Traveling to a facility for repair, or
3. Traveling to a location used for the purpose of loading or unloading de-icing materials.
F. The operator of an oversize or overweight vehicle exempt from the special permit requirement under this section shall comply with all applicable safety requirements provided under Article 3 unless otherwise prescribed by statute.
Table 1. Threshold Dimensions
The department shall issue a special permit, as provided under Article 2, for each vehicle, or vehicle and load combination, exceeding any of the following maximum limits:
Width (A.R.S. § 28-1093) | |||
Vehicles operating on the county highway system | 8' 6" | ||
Height (A.R.S. § 28-1094) | |||
Vehicles operating on the county highway system | 13' 6" | ||
Length (A.R.S. §§ 28-1095 and 28-1097) | |||
Straight trucks | 40' | ||
Truck tractor — Semitrailer combination; or Truck tractor - semitrailer - forklift combination | Interstate system | 57' 6" semitrailer | |
Truck tractor — Semitrailer combination; or Truck tractor - semitrailer - forklift combination | Other highways | 53' semitrailer; or 65' overall combination if more than 53' | |
Truck tractor — Semitrailer — Full trailer combination | 28' 6" per trailer | ||
Vehicle transporter combination | 75' | ||
Overhang | Front of vehicle Rear of vehicle or trailer | 3' 6' | |
Weight (A.R.S. § 28-1100) Allowable weight shall be determined using the listed limits or the manufacturer's weight rating, whichever is less. | |||
Single axle | 20,000 lbs. | ||
Tandem axle | 34,000 lbs. | ||
Steering axle | 20,000 lbs. | ||
Gross weight; five axles or more Maximum allowable axle group weights are computed using the formula prescribed under A.R.S. § 28-1100(A)(4) | 80,000 lbs. | ||
(Ord. 2017-47 § 2 (part), 2017)