Wisconsin Oversized Load Regulations: What You Need to Know
Important: We are not a permit service and we do not arrange permits for carriers. All information provided below is for information purposes only. Always read permits and provisions carefully as we cannot guarantee the accuracy of information provided below.
For companies providing heavy haul oversized transport or machinery hauling services in Wisconsin, understanding the state’s permit system and operating restrictions is crucial for efficient oversize load management.
Permit Requirements
- 14-day validity: Wisconsin oversize permits remain active for two weeks from issue date
- Mandatory pre-entry: All permits must be secured before crossing state lines
- Super load classification: Applies to loads exceeding 16′ width or 150,000 lbs weight
Operating Hours for Oversized Load Transportation
- 24/7 movement allowed for loads under:
- 12′ wide
- 13’6″ high
- 100′ long
- Summer weekend restrictions (Memorial Day to Labor Day):
- No travel Sunday 4PM–11PM
- No oversized moves Saturday noon through Monday sunrise
- Overweight-only shipments typically enjoy unrestricted movement
Key Legal Dimensions for Heavy Equipment Transport
- Standard Limits:
- Length: 53′ trailers (43′ max kingpin to rear axle)
- Width: 8’6″
- Height: 13’6″
- Weight: 80,000 lbs gross
- Single axle: 20,000 lbs
- Tandem axle: 34,000 lbs
- Tridem axle: 42,000–43,000 lbs
- Permitted Expansions:
- Width: Up to 16′
- Weight Limits:
- Single axle: 30,000 lbs (4 tires required)
- Tandem axle: 65,000 lbs
- Tridem axle: 81,000 lbs
Escort Requirements for Oversize Load Safety Regulations
- Width >15′: 1 escort vehicle required
- Length/Height: Typically no escorts needed (route-dependent)
- Special considerations for wide load regulations in urban areas
Seasonal Considerations
- Spring thaw restrictions (March–May):
- Applies to Class 2 roads
- Typically doesn’t affect Interstates/US Highways
- Farm equipment exemption:
- No permit needed for Wisconsin-bound deliveries
- Restricted to Mon–Thu travel (Fri until 2PM)
- Interstate use prohibited
Safety & Visibility Requirements
- Signage:
- “Oversize Load” signs mandatory for:
- Width >10′
- Any overlength configurations
- “Oversize Load” signs mandatory for:
- Flagging:
- 18″ square flags at all corners for overwidth loads
- Additional flags at widest points (>4″ beyond vehicle)
- Lighting: Night moves require illuminated signage per MV2605 provisions