All oversize loads entering the City of Columbia, Maury County, must conform to the requirements set by the Tennessee Department of Transportation.

In general, any vehicle over 12 feet in width, 14 feet in height, and within the Class 3 weight category (100,000 to 150,000 pounds) should obtain an oversize load permit from the Columbia Public Works Department.

The city's infrastructure, including historic districts and major roads like James Campbell Boulevard, require special consideration when planning oversize load routes through Columbia.

Escort vehicles are required for loads exceeding 16 feet in width or 18 feet in height in Columbia. The escort must be provided by a certified escort service with proper warning lights and signage.

For loads requiring a police escort, arrangements must be made through the Columbia Police Department's Special Operations Division at least 48 hours in advance. Fees for police escorts vary based on the number of officers required and the duration of the escort.

Applications for oversize load permits in Columbia can be submitted online through the Tennessee Department of Transportation's permit portal or by contacting the Columbia Public Works Department directly at (931) 388-9840.

Documentation requirements include proof of insurance, detailed load specifications, and a proposed route through the city. Applicants are advised to consult with the Public Works Department to ensure compliance with local regulations.

Oversize loads are restricted from traveling through Columbia during peak traffic hours (7-9 am and 4-6 pm, Monday through Friday) unless otherwise approved by the Columbia Public Works Department.

Seasonal restrictions may apply during major events or festivals, such as the Midsouth Fair, which may impact routing and travel times.

Certain neighborhoods and historic districts have restricted access for oversize loads; alternative routes must be planned in advance to avoid these areas.

The base permit fee for an oversize load in Columbia is $150. Additional fees are assessed based on the complexity of the route, the need for escort services, and any required inspections.

For loads exceeding standard dimensions significantly, a detailed route analysis may be required, incurring an additional fee of $200 to $500, depending on the scope of the analysis.