State guides / Idaho

Idaho oversize escort requirements

When a load over legal width, height, length or weight needs pilot cars or a police escort in Idaho, on two-lane and divided highways.

From the state's published tables; some cases are set per permit

Idaho escorts by load, two-lane and divided highways
Load	Two-lane highway	Divided highway	Rule
Width12'6" wide	1 front	None	width >12' (2-lane) — 1 escort
Width14'6" wide	2 front	None	width >14' (2-lane) — 2 escorts
Width16'6" wide	3 front	2 front	width >16' (2-lane) — 3 escorts; width >16' (interstate) — 2–3 escorts
Width18'6" wide	3 front	2 front	width >16' (2-lane) — 3 escorts; width >16' (interstate) — 2–3 escorts
Height15'6" high	None	None	No escort trigger at this size
Height16'6" high	1 front	1 front	height >16' — 1 front with non-metallic height pole
Length110' overall	1 rear	None	length >100' (2-lane) — 1 escort
Length130' overall	1 rear	1 rear	length >100' (2-lane) — 1 escort; length >120' (interstate) — 1 escort
Weight200,000 lb gross	None	None	No escort trigger at this size

Each example changes one dimension from a legal 8′6″ wide, 13′6″ high, 75′, 80,000 lb tractor-trailer. Real moves often combine several. “Set by permit” means Idaho decides that case on the permit itself. Permits can add conditions of their own, so check yours before you move.

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Idaho oversize escort requirements

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