Idaho

The requisite number and positioning of pilot car escorts in Idaho are determined by route color codes.

When escorts are needed & the number of escorts required:

On red-coded routes:

• Width over 8'7" to 10' requires 1 escort (Lead).

• Width over 10' to 12'6" requires 2 escorts (Lead and Chase).

• Length over 75' requires 1 escort (Lead).

• If over width and over 75' length, 2 escorts are required (Lead and Chase).

On black-coded routes:

• Width over 12' to 14' requires 1 escort (Lead).

• Width over 14' to 14'6" requires 2 escorts (Lead and Chase).

• Length over 100' requires 1 escort (Lead).

• If over 12' to 14'6" wide and over 100' in length, 2 escorts are required (Lead and Chase).

On the interstate system:

• Height over 15' requires 1 escort (Chase).

Night travel:

• Any overwidth load moving after dark on black-coded routes, if the width exceeds 10', must also be preceded by such a pilot/escort vehicle.

Any overwidth load moving after dark or on weekends on a red-coded route of the Pilot/Escort Vehicle and Travel Time Requirements Map must be preceded by an escort vehicle displaying a rotating or flashing amber light to warn other traffic of the presence of the hazard.