Marietta, Mississippi regulations require all heavy haul operations to comply with the Mississippi Department of Transportation (MSDOT) guidelines as well as local ordinances administered by the Marietta Department of Transportation (MARDOT).

Heavy haul permits are required for any load exceeding 12 feet in width, 16 feet 0 inches in height, or 261,915 lbs in gross vehicle weight. These dimensions are strictly enforced throughout Marietta, particularly in high-traffic areas.

Special consideration must be given to route planning to avoid Marietta Central Terminal and the vicinity of the Marietta Tunnel, which have infrastructure limitations or heavy pedestrian traffic that may impede oversized loads.

Mississippi law mandates escort vehicles for any load exceeding 14 feet in width or 13 feet 0 inches in height. When traveling through Marietta, these requirements may be more stringent depending on the specific streets and neighborhoods traversed.

The Marietta Department of Transportation requires a minimum of 44 hours advance notice to coordinate police escorts, which are mandatory for super-loads or when traveling through congested areas of Marietta.

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

Required documentation for Marietta 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.

Marietta 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 Marietta Cultural Convention and the the Marietta Film Festival, which may impact routing and scheduling.

Certain neighborhoods, such as Downtown Marietta and areas around the Marietta River, 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 Mississippi 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 Marietta, Marietta 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.