Idaho (ID) Pilot Car & Escort Vehicle Requirements

Escort requirements, travel restrictions, and signage rules for oversize/overweight loads in Idaho.

Legal Dimensions — Idaho

Max Width
8'6"
Max Height
14'0"
Max Length
53'0"
Gross Weight
80,000 lbs
Front Overhang
3'0"
Rear Overhang
4'0"

Interstate Escort Requirements

Width

Min WidthMax Width EscortsPositionNotes
8'7" 15'0" 0 Permit required, no escort
15'1" 16'0" 1 Rear
16'1" 20'0" 2 Front + Rear May need 3 escorts

Height

Min HeightMax Height EscortsPositionNotes
14'1" 16'0" 0 Permit required
16'1" 20'0" 1 Front
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 120'0" 0 Permit required
120'1" 200'0" 1 Rear

Overhang

Min OverhangMax Overhang EscortsPositionNotes
25'1" 40'0" 1 Rear Rear overhang over 25'

Non-Interstate / State Road Escort Requirements

Width

Min WidthMax Width EscortsPositionNotes
8'7" 12'0" 0 Permit required
12'1" 14'0" 1 Front
14'1" 16'0" 2 Front + Rear
16'1" 20'0" 3 Front + Rear May need 3 escorts

Height

Min HeightMax Height EscortsPositionNotes
14'1" 16'0" 0 Permit required
16'1" 20'0" 1 Front
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 100'0" 0 Permit required
100'1" 200'0" 1 Rear

Overhang

Min OverhangMax Overhang EscortsPositionNotes
25'1" 40'0" 1 Rear Rear overhang over 25'

Travel Restrictions

Standard Hours
Daylight hours
Night Travel
Loads 10' wide or less, 110' long or less, 14'6" H or less: 24/7
Weekend Travel
Standard daylight travel
Holiday Restrictions
No travel on major holidays
Urban Restrictions
Boise, Caldwell, CdA, Idaho Falls, Lewiston, Nampa, Pocatello, Twin Falls, Garden City, Chubbuck: over 13' width restricted 6:30-8:30 AM, 11:30 AM-1:30 PM, 4-6 PM

Signage & Flag Requirements

Oversize Load Sign
Required on oversize loads
Flags
Standard flags at extremities
Disclaimer: These regulations are for informational purposes only. Always verify with the Idaho Department of Transportation before moving any oversize/overweight load. Regulations change frequently.

Moving an Oversize Load Through Idaho?

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