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Missouri (MO) Pilot Car & Escort Vehicle Requirements

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

Legal Dimensions — Missouri

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" 12'4" 0 — Permit required, no escort
12'5" 14'0" 1 Rear 1 on divided highways
14'1" 20'0" 2 Front + Rear 2 on undivided highways even at 12'5"

Height

Min HeightMax Height EscortsPositionNotes
14'1" 15'6" 0 — Permit required
15'7" 20'0" 1 Front Route survey + high pole required
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 90'0" 0 — Permit required
90'1" 130'0" 1 Rear 1 escort on 2-lane roads
130'1" 200'0" 2 Front + Rear

Weight

Min WeightMax Weight EscortsPositionNotes
160,001 lbs 999,999 lbs 2 Front + Rear Superload - bridge division review required
Route survey required

Non-Interstate / State Road Escort Requirements

Width

Min WidthMax Width EscortsPositionNotes
8'7" 12'4" 0 — Permit required
12'5" 14'0" 2 Front + Rear 2 escorts off designated system
14'1" 20'0" 2 Front + Rear 2 escorts on 2-lane roads

Height

Min HeightMax Height EscortsPositionNotes
14'1" 15'6" 0 — Permit required
15'7" 20'0" 1 Front Route survey + high pole
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 90'0" 0 — Permit required
90'1" 130'0" 1 Rear 1 on 2-lane
130'1" 200'0" 2 Front + Rear

Weight

Min WeightMax Weight EscortsPositionNotes
160,001 lbs 999,999 lbs 2 Front + Rear Superload - bridge division review
Route survey required

Travel Restrictions

Standard Hours
Daylight hours
Night Travel
Not permitted for oversize loads
Weekend Travel
No weekends for loads over 12' wide and over 90' long.
Holiday Restrictions
No travel on major holidays
Urban Restrictions
St. Louis metro: 6:30-9 AM and 3:30-6:30 PM restricted. Signs required over 10'6" wide or over 90' long.

Signage & Flag Requirements

Oversize Load Sign
Required for loads over 10'6" wide or over 90' long
Flags
Standard flags at extremities
Disclaimer: These regulations are for informational purposes only. Always verify with the Missouri Department of Transportation before moving any oversize/overweight load. Regulations change frequently.

Moving an Oversize Load Through Missouri?

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