All oversize loads entering the City of Frederick, located in Tillman County, must conform to the requirements set by the Oklahoma 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 120,000 lbs) should obtain an oversize load permit from the Frederick Public Works Department.

Frederick's local ordinances also require that oversize loads avoid residential areas and major thoroughfares during peak hours to minimize disruptions.

In Frederick, 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 flags.

For oversize loads traveling through Frederick during nighttime hours, police escorts may be required. Arrangements for police escorts must be made at least 48 hours in advance through the Tillman County Sheriff's Department.

To apply for an oversize load permit in Frederick, applicants must submit their request through the Oklahoma Department of Transportation's online permitting system or by contacting the Frederick Public Works Department directly.

Applicants must provide detailed documentation of the load, including dimensions, weight, and proposed route through Frederick.

Frederick has time-of-day restrictions for oversize loads; they are not permitted on city streets between 7-9 am and 4-6 pm on weekdays.

During periods of heavy rain or flooding, oversize loads may be restricted from certain routes. It is the responsibility of the permit holder to check current road conditions before transit.

The base permit fee for oversize loads in Frederick is $150. Additional fees may apply based on the complexity of the route and the need for escort services.

For multiple trip permits, a discounted rate of $100 per trip is available for loads that will travel through Frederick more than once within a 30-day period.