All oversize loads entering New Underwood, South Dakota must conform to the requirements set by the South Dakota Department of Transportation (SDDOT) and the New Underwood Department of Transportation (NEWDOT).

In general, any vehicle over 11 feet in width, 16 feet 6 inches in height, and within the super heavy weight class (over 210,129 lbs) should obtain an oversize load permit from the SDDOT and potentially additional permits from NEWDOT.

To navigate the complexities of New Underwood's infrastructure, it's crucial to plan routes that avoid sensitive areas like New Underwood Stadium and major construction zones along the New Underwood College Campus area.

Escort vehicles are required for oversize loads exceeding 17 feet in width or 14 feet 6 inches in height on highways and certain city streets. The South Dakota State Police often require escorts for loads that are particularly large or heavy.

For movements within New Underwood, the New Underwood Department of Transportation may mandate police escorts for oversize loads, especially during peak traffic hours. Scheduling these escorts requires advance notice, typically at least 28 hours prior to the move.

The South Dakota Department of Transportation manages the primary application process for oversize permits, with supplementary permits required from New Underwood Department of Transportation for transit through New Underwood limits.

Required documentation for New Underwood permits includes axle configuration diagrams, proof of insurance with appropriate coverage levels, and detailed transport plans. Engineering assessments may be required for loads exceeding standard weight thresholds on certain streets and bridges.

New Underwood has strict time-of-day restrictions for oversize loads, generally prohibiting movements during peak hours (7-8 am and 3-5 pm, Monday-Friday).

Seasonal restrictions apply during major events like the the New Underwood Heritage Festival and the the New Underwood Film Exhibition, which may impact routing and scheduling.

Certain neighborhoods, such as New Underwood Center and areas around New Underwood Port Authority, have restricted access for oversize loads. Alternative routes should be planned in advance to avoid these areas.

The base permit fee for an oversize load in South Dakota is $40, with additional fees for super heavy loads (over 200,000 lbs) ranging from $150 to $350 depending on the complexity of the move.

For movements within New Underwood, New Underwood Department of Transportation may charge additional fees for city-specific permits, which can range from $75 to $500 or more for particularly complex routes or those requiring extensive coordination with city agencies.