State Oversize Permits & Escorts Information

On Interstate Highways:

Length: Over 120′ – one escort,

Width: Over 16′-6″ – one escort

Height: Not usually required, but over 17′ may depend on route, and over 16′ may have two-lane detours.

On two-Lane Highways:

Length: Over 110′ – one escort

Width:

• Over 12′-6″ – one escort
• Over 14′ – two escorts

Height: Over 17′ – one escort with high pole

Weight: Over 54,300 – 55,000 on a Tridem (varies with spacings) – two escorts (DW21 Conditions).

SIGNS, FLAGS & LIGHTS: Vehicle/load exceeding 10′ in width require “Oversize Load” signs front and rear, and 5″ flashing amber lights, revolving beacon or strobe light(s) are required at each end of the Oversize Load sign on the power unit, or a single beacon light may be used on top of the power unit as long as it is visible from all directions. If the light is blocked by the height/width of the load, the rear of the load should also have a light. “Long Load” sign must be displayed on the rear of combinations exceeding 105′ on non-Interstate routes, and exceeding 120′ on Interstate routes.  Overlength load does not need signs if less than 110′ total overall length.

SEASONAL LOAD (WEIGHT) RESTRICTIONS: Spring thaw restrictions may occur on some routes approximately February through May. Interstate routes are usually not affected.

‍