Winnebago County Permits
Oversize/ Overweight permit application (PDF form)
For faster processing permit applications can be emailed to the Engineer’s office. Applications can also be mailed or faxed.
Click here for a Microsoft Word version of the Oversize/Overweight permit application.
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
57-foot lowboy trailer hauling construction equipment
Weight 20,000 lb. single axle
34,000 lb. tandem axle
80,000 lb. gross weight
Iowa DOT Oversize/Overweight Permits Page
Iowa Truck Information Guide
Iowa Code 321E – Vehicles of Excessive Size and Weight