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2024 Wyoming Winter/Spring Frost Law Restrictions

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2024 Wyoming Winter Frost/Spring Thaw and Seasonal Weight Restrictions

Oversize load travel in Wyoming is subject to specific regulations and requirements to ensure safety on the roads. When a “no unnecessary travel advisory” is issued, oversized loads are not permitted to continue their journey. In such cases, an enroute load is allowed to proceed to the nearest parking area or town. However, the load should only continue beyond these points with approval from the Wyoming Highway Patrol. Escorts are mandatory on two-lane primary and secondary routes when any part of the vehicle or load extends to the left of the highway center line or when the movement is 14 feet or greater in width. For interstate and divided highways, as well as four-lane roads with a left turn center lane, escorts are required for movements with a width of 15 feet or greater. Additional escorts may be deemed necessary by the Wyoming Highway Patrol based on the specific width of the load.

Wyoming Oversize Restrictions

For rear overhangs of 25 feet or more, one escort to the rear is mandatory on all highways. Movements with a height of 17 feet or higher require an escort vehicle to the front, equipped with a height-measuring device, on all highways. Escorts for heights less than 17 feet are subject to the discretion of the permit issuing authority. Additional escort to the front may be required on primary and secondary highways. Movement of any oversized load is permitted only during daylight hours, with exceptions for specific scenarios such as permitted combinations not exceeding 110 feet, single units not exceeding 75 feet, loads not exceeding 10 feet wide on interstate highways, and escorted vehicles/loads more than 10 feet wide on interstates or more than 8.5 feet on primary or secondary roads. Additional restrictions apply to vehicles/loads over 18 feet.

Wyoming Oversized Load Signs, Lights, and Banners

Banner regulations mandate that all oversized loads display an “Oversize Load” sign on both the front and rear of the vehicle or load. The sign should be 5 feet wide and 10 inches high, with lettering 8 inches high and a 1-inch brush stroke against a yellow background. Flag requirements specify using red or fluorescent orange flags, 12 inches square, mounted at the four corners of the vehicle load, at any extremity wider than the front/rear of the vehicle/load, and at the rear overhang of 4 feet or greater. One flag is required if the overhang is less than 2 feet wide, and two flags if it is greater than 2 feet wide.

See also:

Tire chain laws.
Federal bridge formula.

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