MONTANA OVERSIZE OVERWEIGHT PERMITS
MONTANA OVERSIZE OVERWEIGHT PERMITS
Montana Department of Transportation Motor Carrier Services Division
Address: 2550 Prospect Avenue Helena, Montana 59601
Contact: (406) 444-7262
Hours: 8:00 A.M. – 5:00 P.M. (MT)
Permits
Single trip permits are valid for three (3) consecutive days.
Weight:
| Single | Depends on axle spacings. 20,000 |
| Tandem | Depends on axle spacings. 48,000 |
| Tridum | Depends on axle spacings. 51,750 |
| Quad | Depends on axle spacings. 55,440 |
Gross Weight:
| 5 Axles | 107,000 |
| 6 Axles | 110,000 |
| 7 Axles | 114,000 |
| 8 Axles | 126,000 |
Length: 150’
Width: 18’
Height: 17’
When Escorts Are Needed:
On Interstate: # of Escorts
| Width over 16’6” | 1 Rear |
| Length over 120’ | 1 Rear |
On 2- Lane or Multi-Lane Non-interstate:
| Width over 12’6” up to 14’ | 1 Front |
| Width main body of load over 14’ or overall width is over 15’ | 2 (Front & Rear) |
| Length over 110’ | 1 Rear |
| If escort is required on non-interstate only (i.e., load dimensions not over 16’ wide or 120’ long) | |
| Width over 10’ and not equipped with lights and signs state requires | 2 (Front & Rear) |
| Height over 17’ (before permit appl.) | Route Survey |
Convoys:*
| No more than 5 O/O loads needing escorts may convoy if width not over 14’ (or 15’ w/ projections) and not over 120’ | 2 (Front & Rear) |
| No more than 5 vehicles needing escorts may convoy if length of any unit is over long on 2-Lane highways or 110’ long on interstate highways. | 2 (Front & Rear) |
*For convoys, escort must have sign stating: “Oversize Load, Convoy Follows (# of vehicles).”
Vectra Heavy Haulers, a trusted name in equipment delivery, will ensure the secure delivery of your cargo to Idaho https://www.vectraheavyhaulers.com/idaho/ as well. We follow all the regulations laid out in federal, state, and local jurisdictions for ensuring trouble-free delivery. For more information on transportation regulation permits for Montana Oversize goods.