2021 Alabama state DOT oversize and heavy haul trucking shipping laws, rules, regulations and limitations for oversize and heavy haul trucking permits. Pilot car requirements.
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Alabama oversize permits, heavy-haul trucking companies and pilot cars.
Locate oversize, heavy-haul trucking companies and pilot cars:
Do I need a trucking permit? Legal load limits.
Alabama maximum load limits until a trucking permit is required:
Length: Trailer length maximum allowed is 57 feet (17.37 meters) including combinations.
Width: 8 feet and 6 inches (2.59 meters) wide for most roads, 8 feet (2.43 meters) for roads under 12 feet (3.65 meters) in width.
Height: 13 feet and 6 inches (4.11 meters) tall.
Weight: 80,000 pounds (36287.39 kilograms) gross (GVW).
Overhang: 4 feet (1.21 meters) off of the rear and 5 feet from the front of trailer.
Routine oversize and heavy-haul trucking permits.
These maximum dimensions/weights are considered routine oversize or heavy-haul trucking permits in Alabama:
Length: 150 feet (45.72 meters) maximum length overall.
Width: 16 feet (4.87 meters) if shipment is over 16 feet in width you are not permitted use the interstate system.
Height: 16 feet (4.87 meters) in total height.
Weight: on a single axle; 22,000 pounds (9979 kg), tandem axles: 44,000 pounds (19958 kg), tridum axles: 66,000 pounds (29937 kg), quadem axles: 88,000 pounds (39916 kg), 5 axles: 102,000 pounds (46266 kg), 6 axles: 124,000 pounds (56245 kg), 7 axles: 146,000 pounds (66224 kg), 8 axles: 168,000 pounds (76203 kg).
Overhang: 20 feet (6.09 meters) maximum.
Notes: Alabama state permitting department no longer uses the metric system. On shipments in excess of any of the above dimensions or 180,000 pounds proceed to the super load section below for more information. Loads with weight restrictions are subject to a bridge analysis.
Super load information for Alabama.
Alabama state DOT will classify any shipment in excess of the following as a super load:
Defined as shipments in excess of any of the following dimensions/weights; over 250,000 pounds (113398.0 kilograms) of gross weight, over 16 feet (4.87 meters) in width, over 16 feet in height, over 150 feet (45.72 meters) long. Anything of this nature will require special ALDOT approval. Detailed drawings will be required and need to include shop drawings of the item being shipped, the truck and trailer axle weights and spacings for both truck tractor and trailer. A letter from the manufacturer is required certifying the shipment is reduced to the lowest possible size and weight configuration as well as an explanation of why it can not be shipped by other means such as by barge or port. Loads exceeding 150,000 pounds (68038.8 kilograms)are subject to a full scale structural bridge analysis if bridges are in the route. A special weight authorization (SWA) is required from the permit office to initiate the necessary bridge rating section investigation as well. Night travel (9PM – 6AM) may be required with a state trooper or police escort (minimum of 2 when travelling). A route survey will probably be required. The Alabama State Troopers Association handles all of the scheduling of police/trooper escorts after your super load permit has been issued. A lighting system configured from strobe warning lights must be placed on each extremity of the shipment in addition to basic requirements such as flags and oversize load signs. All rail road crossings must be identified and railroad must be notified in advance of your intent to cross as well as date and time. ALDOT will more than likely verify this with the railroad and not issue a super load permit until verified. It is the carriers responsibility to notify the railroad of each intended crossing. At each rail crossing you will find a small plaque with a phone number and a “crossing number” that identifies each crossing for submitting cross requests. A bucket truck is required to accompany loads that exceed 16 feet and 5 inches (5.0 meters) in height and it is the carriers responsibility to show proof of “utility notification” for shipments in excess of 16 feet and 6 inches (5.02 meters) in height. City or county approval is required for Alabama super loads as well, please see the Alabama list of county engineers for contact details. For information published by the state you can read more Alabama super load information.
Lights, safety flags and warning signs for heavy haul and oversize loads.
Required safety markings, safety flags, warning lights for heavy haul and oversize loads:
A sign will need to be mounted on the front and rear of any over width or over length truck and trailer or combinations. Banners/signs need to be a minimum of 7 feet (2.13 meters) in width, 18 inches (45.7 centimeters) in height and be marked with black letters of no less than 10 inches (25.4 centimeters) in height, with a minimum of a 1-5/8 inch (4.12 centimeters) line thickness on a yellow or orange background. The actual words required are exactly as follows: “OVERSIZE LOAD”. Red flags must be a minimum of 18 inches (45.7 centimeters) square and be placed at all 4 outer most corners of all over-dimensional shipments.
When pilot cars or escort vehicles are required.
Heavy-haul or oversize loads may be required to be accompanies by a escort vehicle or pilot car if:
1 front pilot car (escort vehicle) is required for all loads over 15 feet and 6 inches (4.72 meters) in height with a height pole will be required adjusted 4-6 inches (10.16 – 12.7 centimeters) higher than the actual shipment. On some routes a high pole pilot (escort) may be required for even less heights. Two front and one rear pilot car (escort vehicle) is required for any shipment in excess of 12 feet (3.65 meters) wide. Rear pilot cars (escort vehicles) for mobile home shipments may be replaced with two 5 inch (12.7 centimeters) flashing, stobing or rotating amber lights. 1 rear pilot car (escort) is required for shipments over 85 feet (25.90 meters) in length. 1 front and 1 rear pilot car (escort vehicle) is required for shipments over 105 feet (32.0 meters) in length. 1 rear pilot car (escort) is required if overhang exceeds 10 feet (3.04 meters) from the front of the trailer or 5 feet (1.52 meters) off of the rear of the trailer. There are special escort requirements for bulldozers, scrapers, loaders and other construction equipment being transported with a blade or bucket intact. However on some routes that are 2 lane roads may require 1 front pilot car and on some 4 lane roads 1 rear escort.
Pilot cars/escort vehicle certifications and requirements.
Pilot car or escort vehicle mandatory operator certifications and vehicle requirements:
A pilot car vehicle must be classified as an actual passenger vehicle to qualify, ie; car, truck, van, etc. A pilot car vehicle must be equipped with a strobing, flashing or rotating amber light. The pilot car must be able to communicate with and be in constant contact with all parties working in relation to the shipment by CB or 2-way radio. Also see federal requirements for pilot cars and escort vehicles. Signs mounted on pilot car vehicles must moderately fit the vehicle and not be obtrusive in any manner.
Legal travel times for oversize and heavy haul loads.
Travel times and restrictions for heavy-haul and oversize loads:
One half hour before sunrise to one-half hour after sunset. Travel is allowed all day Saturday with NO SUNDAY TRAVEL PERMITTED. Shipments 120 feet (36.57 meters) to 150 feet (45.72 meters) in length are restricted from moving from 9:00 AM – 3:00 PM Mondays through Fridays. Travel is NO permitted on the following holidays: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The Alabama DOT state permit office is closed on these holidays as well as on Martin Luther King Day, Washington’s Birthday, Columbus Day, Confederate Memorial Day, Jefferson Davis’ Birthday and on Veteran’s Day. More information on DOT permit office closure is available here. Travel is NOT restricted on these days.
Alabama DOT contact information and notes.
Alabama DOT office and permit contact information:
Alabama Department of Transportation – Oversize Permits
1409 Coliseum Boulevard Montgomery, Alabama 36110
Phone: 334-834-1092 or toll free: 800-499-2782 – option 4.
FAX: 334-832-9084 – if this number has changed please let us know below.
Alabama DOT: Main page of the Alabama state trucking permits website. Alabama laws direct.
E-mail trucking permits: email@example.com
Current routing detours: Here is the current ALDOT closures memo (if link is down visit main site).
Misc: Alabama DOT trucking Alabama permits manual – has a lot of good information. Escrow account customers may replenish escrow by credit card. Contact: Mechelle @ 1-800-499-2782 and press option 4. Note: Alabama DOT requires you to sign their permit with red ink only.
DOT permit office Hours: 7:00 AM – 4:45 – PM
CENTRAL TIME ZONE
Alabama is a member of SASHTO.
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Heavy haul and oversize trucking permit limitations.
Weight for single axle 22,000 pounds. Weight for tandem axles 44,000 pounds. Weight for tridem axles; 66,000 pounds. Weight for quantum axles; 88,000 pounds gross weight for five axles; 102,000 pounds. For six axles; 124,000 pounds. For seven axles;146,000 pounds and for 8 axle shipments;168,000 pounds
Maximum length is 150 feet. Maximum overhang is 20 feet.
Maximum with the 16 feet.
Maximum height is 16 feet.
If your heavy haul or oversize load exceeds any of these dimensions or 180,000 pounds please refer to the super load section. Any permitted load with a weight is subject to a detailed bridge analysis.
Heavy haul loads greater than 150,000 pounds or 16 feet wide or 16 feet tall or 150 feet long will require special approval. Drawings are required and should include axle weights and spacings. Heavy haul loads exceeding 150,000 pounds are subject to structural analysis. If any bridges are to be crossed moving a heavy haul shipment (with exceptions) you may be able to move at night with police escorts when hauling a super load.
Pilot car and escort requirements.
Front pilot cars or escorts are required for loads that are over 15’6″ tall and must have a high pole. Two front escorts and one rear pilot car is required when loads are in excess of 12 feet wide. Escorts and or pilot cars may be required for lower heights depending upon routing. A rear escort or pilot car is required on mobile homes and maybe replaced with 25 inch flashing amber lights in some circumstances. One rear escort is required if over 85 feet in length. Front and rear pilot cars or escorts are required on all loads that are in excess of 105 feet long. Rear escorts or pilot cars are required if overhang is in excess of 5 feet from the rear or 10 feet to the front. There are some special escort or pilot car requirements for bulldozers that travel in two lanes one front escort may be required and in four lanes one rear escort or pilot car may be required.
Pilot car and escort vehicle requirements.
Escort vehicles and pilot car shall be a passenger vehicle or pickup truck as well as a full-size van or station wagon. All escort vehicles and pilot cars must be equipped with a flashing or revolving amber light. All escort vehicles and pilot cars must be able to maintain constant contact with each other as well as the permitted truck via two-way radio. Pilot cars and escort vehicles must have signs mounted on them and must be modified if necessary to fit correctly.
Travel times for heavy haul and oversize loads as well as weekend travel.
Travel is permitted one half hour before sunrise all the way until one half hour after sunset. Travel is allowed all day on Saturdays however no Sunday travel is permitted. Travel is prohibited on the following holidays; New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving day and Christmas day. The Alabama state permit office will be closed on these holidays as well as Martin Luther King Day, Washington’s Birthday, Columbus Day, Confederate Memorial day, Jefferson Davis day, Lincoln’s birthday and Veterans Day. Travel may not be restricted on these particular days but you must refer to your permit for any particular instructions.