All oversize loads entering the City of Oshkosh, Winnebago County, must conform to the requirements set by the Wisconsin Department of Transportation.

In general, any vehicle over 12 feet in width, 14 feet 6 inches in height, and within the Class 3 weight category (over 80,000 lbs but not exceeding 90,000 lbs) should obtain an oversize load permit from the Oshkosh Public Works Department.

The City of Oshkosh requires that all oversize loads be routed to avoid downtown areas and residential neighborhoods whenever possible, utilizing highways such as US-41 and WI-44.

In Oshkosh, escort vehicles are required for loads exceeding 16 feet in width or 18 feet in height. Escort vehicles must be equipped with appropriate warning lights and signage as per Wisconsin Department of Transportation regulations.

For loads that require a police escort, arrangements must be made through the Oshkosh Police Department at least 48 hours in advance. Fees for police escorts are based on the number of officers required and the duration of the escort.

To apply for an oversize load permit in Oshkosh, applicants can visit the City of Oshkosh's Public Works Department website or contact them directly at (920) 232-3000. Required documentation includes detailed load information, proposed route, and vehicle specifications.

Applicants must also provide proof of insurance and a valid Wisconsin oversize load permit or a permit from the state of origin if different.

Oshkosh has time-of-day restrictions for oversize loads; typically, they are not allowed on city streets during peak hours (7-9 am and 4-6 pm, Monday through Friday).

Seasonal restrictions may apply during extreme weather conditions such as heavy snow or flooding, as determined by the Oshkosh Public Works Department.

Certain neighborhoods and historic districts have restricted routes; loads must be routed via designated heavy haul routes.

The base permit fee for an oversize load in Oshkosh is $50. Additional fees are charged based on the size and weight of the load: $25 for loads over 14 feet wide, $50 for loads over 18 feet wide, and $100 for loads requiring a police escort.

Complex routes that require additional review or infrastructure protection may incur additional fees as determined by the Oshkosh Public Works Department.