All oversize loads entering the City of DeKalb must conform to the requirements set by the Illinois Department of Transportation (IDOT) and the DeKalb Public Works Department.

In general, any vehicle over 12 feet in width, 14 feet in height, and within the Class 8 weight category (over 33,001 pounds) should obtain an oversize load permit from the DeKalb Public Works Department.

DeKalb, being part of DeKalb County, adheres to the state guidelines while also considering local road conditions and infrastructure. For instance, loads exceeding 16 feet in width or 18 feet in height may require additional permits and inspections to ensure safe passage through the city.

In DeKalb, escort vehicles are required for loads exceeding 14 feet in width or 18 feet in height. The escort must be provided by a licensed pilot car service familiar with DeKalb's road network.

For oversize loads traveling through DeKalb during peak hours (7-9 am and 4-6 pm), law enforcement escorts may be required. The DeKalb Police Department coordinates these escorts, and arrangements must be made at least 48 hours in advance. Fees for police escorts vary based on the number of officers required and the duration of the escort.

To apply for an oversize load permit in DeKalb, applicants must submit their request through the DeKalb Public Works Department's website or by contacting them directly at (815) 748-2345. Required documentation includes proof of insurance, detailed load specifications, and proposed route information.

The DeKalb Public Works Department reviews applications to ensure compliance with both state and local regulations. Applicants are advised to consult with the department to discuss any specific requirements or restrictions that may apply to their oversize load.

DeKalb has time-of-day restrictions for oversize loads on certain routes. Loads are generally not permitted during peak traffic hours (7-9 am and 4-6 pm) on weekdays.

Seasonal restrictions may apply during periods of heavy snowfall or flooding, as determined by the DeKalb Public Works Department. Weather-related restrictions are communicated through the department's website and local news outlets.

Certain neighborhoods, such as those around the Northern Illinois University campus, are designated as restricted areas for oversize loads due to high pedestrian traffic and narrow streets.

The base permit fee for an oversize load in DeKalb is $150. Additional fees are assessed based on the size and weight of the load, as well as the complexity of the route.

For example, loads requiring law enforcement escorts incur an additional fee of $200 per officer, per hour. The total cost of the permit is calculated based on the specific requirements of the load and the route through DeKalb.