All oversize loads entering Manhattan, Illinois must conform to the requirements set by the Illinois Department of Transportation (ILDOT) and the Manhattan Department of Transportation (MANDOT).

In general, any vehicle over 11 feet in width, 15 feet 6 inches in height, and within the super heavy weight class (over 253,024 lbs) should obtain an oversize load permit from the ILDOT and potentially additional permits from MANDOT.

To navigate the complexities of Manhattan's infrastructure, it's crucial to plan routes that avoid sensitive areas like Manhattan Convention Center and major construction zones along the Manhattan Arena area.

Escort vehicles are required for oversize loads exceeding 14 feet in width or 15 feet 0 inches in height on highways and certain city streets. The Illinois State Police often require escorts for loads that are particularly large or heavy.

For movements within Manhattan, the Manhattan Department of Transportation may mandate police escorts for oversize loads, especially during peak traffic hours. Scheduling these escorts requires advance notice, typically at least 42 hours prior to the move.

The Illinois Department of Transportation manages the primary application process for oversize permits, with supplementary permits required from Manhattan Department of Transportation for transit through Manhattan limits.

Required documentation for Manhattan 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.

Manhattan has strict time-of-day restrictions for oversize loads, generally prohibiting movements during peak hours (6-9 am and 4-6 pm, Monday-Friday).

Seasonal restrictions apply during major events like the the Manhattan Sports Fair and the the Manhattan Holiday Parade, which may impact routing and scheduling.

Certain neighborhoods, such as Manhattan Center and areas around Manhattan Basin, 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 Illinois 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 Manhattan, Manhattan 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.