OVERVIEW
PERMITS: Utah oversize permits are valid for five days. Must have permit prior to entering the state. Permits can also be purchased at state line POEs or at interior ports if driver calls ahead for permission (phone numbers are on Utah provision sheet).
OPERATING TIME: One-half hour before sunrise to one-half hour after sunset, including Saturday and Sunday, plus the following exception: Loads not exceeding 10′ wide, legal height, 92′ overall length, and 10′ overhang may travel 24/7 on all highways with proper lights (marker lights indicating extreme width, amber lights at the front and center of the load and red lights at the rear), lights and flags on rear overhang exceeding 4′.
RESTRICTED TRAVEL: Loads exceeding 10′ wide, legal height, 105′ overall length are prohibited from 6:00AM to 9:00AM and 3:30PM to 6:00PM Monday through Friday in the following counties: Box Elder – all highways south of exit 357 of I-15 (Perry Interchange); all highways in Weber, Davis, and Salt Lake counties, and in Utah county, all highways north of SR75- Exit 261 I-15 (Ironton) and SR68 MP 16. Holiday travel is not allowed during major holidays and holiday weekends, and on Pioneer Day (July 24th). Check with Permit Office for updated holiday restrictions.
LEGAL DIMENSIONS
Length: 53′ semi-trailer on designated highways
Overhang:
- 3′ front (tractor)
- 6′ rear
Width: 8’6″
Height: 14′
Weight: 80,000 Gross
- Single – 20,000
- Tandem – 34,000
- Tridem – 42,500
Divisible Loads Exceeding 80,000: You can order a permit to exceed 80,000 gross on state highways and Interstate as long as you are legal on all axle/group weights and you are prorated at 80,000 pounds for Utah.
ROUTINE PERMIT LIMITS
Length: No set maximum. If road can handle the length it will be permitted.
Width: 17′ (Bulldozer blades over 16′ must be removed; can be hauled on same load).
Height: 17′ 6″
Weight:
- Gross Weights
- 5 axles – 100,000
- 6 axles – 136,000
- 7 axles – 148,500
- Depends on axle spacings and configurations
- Axle Weights
- Single – 29,500
- Tandem – 50,000
- Tridem – 61,750
Loads in excess of these dimensions are reviewed on individual basis. Over 17’6″ in height requires documentary clearance proof from utilities, city and state signal divisions and municipalities
ESCORTS
On Interstate and freeways:
Length: Over 120′ – 1 escort
Overhang: Over 20′ – 1 escort
Width:
- Over 14′ – 1 escort
- Over 16′ – 2 escorts
Height:
- Over 16′ – 2 escorts
- Over 17’6″ – 2 escorts plus Highway Patrol, and notify utilities
- On other highways:Length:
- Over 105′ – 1 escort
- Over 120′ – 2 escorts
Overhang: Over 20′ – 1 escort
Width:
- Over 12′ – 1 escort
- Over 14′ – 2 escorts
- Over 16′ – 3 escorts
- Over 17′ – reviewed on individual basis, may require 2 escorts and 2 Highway Patrol
Height:
- Over 16′ – 2 escorts
- Over 17’6″ – 2 escorts plus Highway Patrol, and notify utilities.
Signs, Flags, and Lights: Flags are required to mark all extremities on any load overhanging the sides and on all vehicles exceeding 10′ in width, on all front overhangs exceeding 3′ or rear overhangs exceeding 4′, and on the trailer corners on overheight only loads. “Oversize Load” signs front and rear are required on all vehicles/loads exceeding 10′ in width, or exceeding 14′ in height, and must be displayed to the rear of any vehicle which exceeds 92′ in length, whether loaded or empty. Overhang of 20′ or more must have rotating, flashing or oscillating amber light mounted at end of the overhang and at least 4′ above ground level. See Operating Time section, above, for lighting during permitted night moves.