WYOMING OVERSIZE REGULATIONS
Wyoming Oversize Permits
Wyoming State Highway Department
Address: 5300 Bishop Blvd. P.O. Box 1708 Cheyenne, Wyoming 82002-9019
Contact: (307) 777-4376
Hours: 8:00 A.M. – 5:00 P.M. (MT)
Permits
Single trip permits are usually valid for one (1) trip. There is no limit on the number of days. Returns are not allowed.
Weight:
| Single | 25,000 |
| Tandem | 55,000 |
| Tridum | 65,000 |
| Quad | 74,000 |
| Trunnion | 55,000 |
Gross Weight: Determined by the axle configuration. Anything over 150,000 lbs. Needs special approval.
Length: Port of Entry can approve up to 90’ long on a single unit and up to 110’ long on a combination unit.
Height: Port of Entry can approve up to 17’ high.
Width: Port of Entry can approve up to 18’ wide.
When Escorts Are Needed:
On 2-Lane Highways: # of Escorts
| When any portion of vehicle extends to the left of the highway centerline | 2 (1 Front & 1 Rear) |
| Width 14’ or more | 2 (1 Front & 1 Rear) |
| Width WY highway patrol may require more escorts at its discretion | n/a |
| Length 110’ or more | 2 (1 Front & 1 Rear) |
| Height 17’6” or more | 1 Front w/ height pole |
On Interstate (4 or More Lanes):
| Width 15’ or more | 1 Rear |
| Width additional escorts may be required by the WY Highway Patrol for extreme width | n/a |
| Length 110’ or more | 2 (1 Front & 1 Rear) |
| Height 17’6” or more | 1 Front w/ Height pole |
Vectra Heavy Haulers, a credible company for equipment transport, will facilitate the secure delivery of your loads to Montana as well. We follow all the federal, state, and local permits for transport regulation. For more Wyoming Oversize/Overweight Permit (OSOW) office regulation information.