Utah Oversize & Overweight Permits

When Utah needs a permit

Utah's legal envelope is 8'6" wide, 14' high, 80,000 lb (Utah Code 72-7-406). A pilot car starts at 12' wide off the Interstate, and Highway Patrol rides along over 17' wide or 17'6" high. Travel is daylight only, with a Wasatch Front rush hold at 6-9 a.m. and 3:30-6 p.m. Utah adds its own no-move day, Pioneer Day on July 24, on top of the federal holidays.

Thresholds, escorts, and curfews

• Legal max before a permit: Permit needed over 8'6" wide, 14' high, 80,000 lb, or past legal length (53' trailer on designated highways). Under all of those, no permit.
• Escort / pilot car: Secondary highways: 1 pilot car over 12' wide, 2 over 14'; 1 escort past 105' long and 2 past 120'. Freeway: 1 over 14' wide, 2 over 16'; 1 escort past 120'. Over 16' high takes 2 pilot escorts on all highways. An overhang past 20' adds a car front or rear as it applies. Highway Patrol required over 17' wide or 17'6" high on secondary highways, over 20' wide or 17'6" high anywhere, and a minimum of 2 police escorts on any load past 175' long (Utah Admin. Code R909-2-18, R909-2-19).
• Superload: Over about 17' wide or 17'6" high, or a very heavy non-divisible load (a permit tops out near 125,000 lb gross before special engineering, higher by axle count), UDOT runs a route survey and structural review before it issues. Not a same-day permit.
• Travel curfew: Daylight only, a half hour either side of the sun. A narrow load (about 10' wide or less, legal height, up to ~92' long) can run 24/7 with lighting. Wasatch Front counties hold loads during 6-9 a.m. and 3:30-6 p.m. weekday rush. No moves on Pioneer Day (July 24) or major holiday weekends for loads over 10' wide, 14' high, or 105' long.
• Permit fee: Single-trip oversize is $30 for up to 96 hours, semiannual $75, and annual $90 (Utah Code 72-7-406(5)). A single-trip oversize and overweight permit for a non-divisible load up to 125,000 lb is $60, with semiannual $180 to $420 and annual $240 to $540 by weight band (72-7-406(6)). A divisible-load annual runs the same $240 to $540 and tops out at $540 in the 112,001 to 129,000 lb band (72-7-406(8)). Past 125,000 lb the fee goes by distance and weight, $0.012 per mile for each 1,000 lb over 80,000, with an $80 minimum and a $540 maximum (72-7-406(7)).

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