State Oversize Permits & Escorts Information

Length:

• Over 90′ – one escort
• Over 100′ – two escorts

Overhang: Over 15′ – one escort.

Width:

• Over 12′ – one escort
• Over 14′ – two escorts

Height:

• Over 14′-5″ – one escort with high pole
• Over 15′ – two escorts and a route survey must be submitted and approved.

LIFT AXLES: According to Michigan provision sheet, “Vehicles must have air or lift axles on ground.” According to the permit office, when under a load, all axles including flip axles must be on the ground if you are overweight.

SEASONAL LOAD RESTRICTIONS: Usually February to April, maximum weights per axle and specific routing may vary. No overweight permits will be issued during the spring weight restriction period. Maximum axle weights may be reduced up to 35%. A tandem group may be allowed only 26,000 pounds (13,000 pounds per axle), or with two tandem groups they may allow 26,000 pounds for one group and 32,000 for the other tandem group. Frost Phone: 800-787-8960

SIGNS, FLAGS & LIGHTS: “Oversize Load” signs required on front of vehicle and on rear of load for any overdimensional load. An overwidth or overlength vehicle/load requires flags at each corner of the load, with an additional flag at the widest point on each side of the load if it extends beyond the corner flags. When rear overhang is 4′ or more, the extreme rear of the load must have a flag for daytime running, and a red light or lantern at night.

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