All oversize loads entering the City of Nisland, located in Butte County, must conform to the requirements set by the South Dakota Department of Transportation.

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 Nisland Public Works Department.

Nisland has specific regulations in place to ensure the safe passage of oversize loads through its streets, particularly on Main Street and Highway 212, which are common routes for heavy haul transportation.

Escort vehicles are required in Nisland for loads exceeding 16 feet in width or 18 feet in height. The escort vehicle must be equipped with appropriate warning lights and flags as per South Dakota state regulations.

For oversize loads traveling on highways within Nisland, a pilot car is required if the load exceeds 12 feet in width. Local police escort may be required for particularly large or complex loads, and can be arranged through the Butte County Sheriff's Office with a minimum of 48 hours' notice.

To apply for an oversize load permit in Nisland, applicants can visit the South Dakota Department of Transportation's website or contact the Nisland Public Works Department directly at (605) 347-2424.

Applicants must provide detailed information about the load, including its dimensions, weight, and proposed route through Nisland. Documentation requirements include proof of insurance and a detailed route plan.

Nisland has time-of-day restrictions for oversize loads; they are not permitted on city streets during peak hours (7-9 am and 4-6 pm) on weekdays.

Seasonal restrictions may apply during periods of heavy snowfall or when road conditions are hazardous. Oversize loads are not permitted on unpaved roads or during weather conditions that may compromise safety.

Certain neighborhoods and historic districts within Nisland have restricted routes; loads must avoid these areas unless specifically approved by the Nisland Public Works Department.

The standard permit fee for oversize loads in Nisland is $50, with additional fees based on the complexity of the route and the size of the load.

For loads exceeding 18 feet in width or 20 feet in height, an additional fee of $25 is applied. Complex routes that require detailed planning or police escorts may incur additional charges.