Winnebago County may issue permits for the movement of construction machinery or vehicles with indivisible loads which exceed the maximum dimensions and weights prescribed by law. Permits are required from all jurisdictions (city streets, county roads, and DOT Highways) along the route. For Iowa DOT Permits, call Motor Carrier Services at 515-237-3264 or visit them online.
Approval to operate on roads under Winnebago County jurisdiction is given either by a County Permit or as part of the Iowa DOT All Systems Permits.
Oversize/overweight (OS/OW) loads are enforced by the DOT’s Motor Vehicle Enforcement Officers in cooperation with local law enforcement. A permit is typically required if vehicle dimensions exceed:
- Width: 8 feet 6 inches
- Height: 13 feet 6 inches
- Length: 41-foot single vehicle
- Weight: 20,000 lb. single axle
- 53-foot trailer
- 57-foot lowboy trailer hauling construction equipment
- 34,000 lb. tandem axle
- 80,000 lb. gross weight
Iowa DOT ALL SYSTEMS Permits
The Iowa DOT offers All Systems Oversize/Overweight Permits for pre-approved routes through the state, including in Winnebago County on certain routes. Visit the Iowa DOT All Systems page for additional guidance.
more helpful Links
- Iowa DOT Oversize/Overweight Permits Page
- Iowa Truck Information Guide
- Iowa Code 321E – Vehicles of Excessive Size and Weight