Alabama State Regulations
Permit Types
Permit Validity
Single Trip Trucking Permits are valid for 5 regular travel days.Transportation Restrictions
Travel prohibited in foggy weather, in the snow, on icy roads, or at any other time when there is not sufficient light to render clearly discernible persons and vehicles on the highway at a distance of 500’.
The following holidays are restricted: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas.
Operating Time
Weekend Travel
Travel permitted is all day on Saturday; no Sunday travel. Mobile homes less than 12’ in width may travel until half an hour after sunset on Saturday and Sunday.
Holiday Travel
| Date | Status | Restrictions |
|---|---|---|
| 4/23 | CLOSED | Travel allowed with a valid permit |
Transportation Requirements
Provision Regulations
Superloads
Anything over Routine Issue dimensions requires special approval by the DOT.
Oversize Load Signs
All oversize transports require Oversize Load signs.
Flags/Lights
18” red flag required at the four corners and widest point of any oversize transport.
Blades
Bulldozers, front end loaders and similar equipment shall be loaded with the blade to the rear
any time the blade protrudes beyond the transporting vehicle. Overweight dozer and blade must
be attached, or else hauled on separate loads if blade is detached
Divisible Load Exceptions
Bulldozers and similar construction equipment can be considered non-divisible.
Legal Limits
| Component | Restriction |
|---|---|
| Single Axle | 20,000 lbs. |
| Tandem Group | 34,000 lbs. on Designated Highways, 36,000 lbs. on All Other Roads* |
| Gross Weight | 80,000 lbs. |
| Width | 8’6″ (Hwys – lanes 12′ wide or more) |
| Width | 8′ (Hwys – lanes less than 12′ wide) |
| Height | 13’6″ |
| Length – Straight Truck | 40′ |
| Length – Semi-trailer | 57′ on Designated Highways, 53’6″ on All Other Highways |
| Length – Kingpin | 41’** |
| Overhang | 5′ |
* Must have 6 axles. Federal Bridge Formula Applies
** Kingpin length on trailers exceeding 53’6” cannot exceed 41’
Routine Issues
| Component | Restriction |
|---|---|
| Single Axle | 22,000 lbs. |
| Tandem Group | 44,000 lbs. |
| Tridem Group | 66,000 lbs. |
| Quad Group | 88,000 lbs. |
| Gross – 5 Axles | 102,000 lbs. |
| Gross – 6 Axles | 124,000 lbs. |
| Gross – 7 Axles | 146,000 lbs. |
| Gross – 8 Axles | 168,000 lbs. |
| Gross Weight | 180,000 lbs. |
| Width | 16′ |
| Height | 16′ |
| Length | 150′ |
Escort Requirements
| Dimension | Requirement |
|---|---|
| Width Over 12′-14* | 1 Front (2-Lane Hwys), 1 Rear (Multi-Lane Hwys) |
| Width Over 14′ | 2 (Front & Rear) |
| Height Over 15′ 6″** | 1 Front with Height Pole |
| Front Overhang 10′ | 1 Front |
| Length 90′-125’* | 1 Rear |
| Length Over 125′ | 2 (Front & Rear) |
| Rear Overhang Over 5′ | 1 Rear |
*On mobile homes, the rear escort may be replaced by light system.
**Depending on the route to be traveled, escorts may occasionally be required for lesser height
For bulldozers and other construction equipment being transported with blade intact: Anytime that the blade protrudes beyond the transporting vehicle a minimum of one escort is required. The escort shall be a front escort for highways with only one lane in each direction and a rear escort for highways with two or more lanes in each direction. This requirement is in addition to, and not in place of all other escort requirements.
If a dozer or loader blade protrudes and the load is 12’ wide or less, no escorts will be required.