Dauphin Island, Alabama regulations require all heavy haul operations to comply with the Alabama Department of Transportation (ALDOT) guidelines as well as local ordinances administered by the Dauphin Island Department of Transportation (DAUDOT).

Heavy haul permits are required for any load exceeding 13 feet in width, 16 feet 6 inches in height, or 185,953 lbs in gross vehicle weight. These dimensions are strictly enforced throughout Dauphin Island, particularly in high-traffic areas.

Special consideration must be given to route planning to avoid Dauphin Island Commercial Zone and the vicinity of Dauphin Island International Airport, which have infrastructure limitations or heavy pedestrian traffic that may impede oversized loads.

Escort vehicles are required for oversize loads exceeding 17 feet in width or 15 feet 6 inches in height on highways and certain city streets. The Alabama State Police often require escorts for loads that are particularly large or heavy.

For movements within Dauphin Island, the Dauphin Island Department of Transportation may mandate police escorts for oversize loads, especially during peak traffic hours. Scheduling these escorts requires advance notice, typically at least 26 hours prior to the move.

To apply for an oversize load permit in Alabama, companies must submit their applications through the Alabama Department of Transportation's permit portal. Additional permits for Dauphin Island may require submission to Dauphin Island Department of Transportation.

Documentation required includes detailed route plans, load dimensions, and weight certificates. For super heavy loads, a detailed engineering analysis may be necessary to ensure that the load can be safely transported without damaging city infrastructure.

Dauphin Island has strict time-of-day restrictions for oversize loads, generally prohibiting movements during peak hours (7-9 am and 4-5 pm, Monday-Friday).

Seasonal restrictions apply during major events like the the Dauphin Island Spring Tournament and the the Dauphin Island Historical Tournament, which may impact routing and scheduling.

Certain neighborhoods, such as Dauphin Island Center and areas around Dauphin Island Convention Center, 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 Alabama 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 Dauphin Island, Dauphin Island 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.