Oversize/overweight permits for Alabama are ordered online. All of them go to the permitting office to be reviewed. Permits valid for five consecutive days. Must have a permit prior to entering the state. No travel on major holidays and Sundays. The single trip OS permit fee is $20.00 with a $4.00 credit card fee. The single trip OSOW fee varies (for example, $110 for 155,000 lbs permit.)
Alabama permitting System: https://alpass.dot.state.al.us/permits/login.asp
Contact phone number: 1-800-499-2782
Daylight only (one-half hour before sunrise to one-half hour after sunset) Monday through Saturday. No travel on Sundays.
Width: 8'6" (8' on lanes less than 12' wide) Height: 13'6"
Length: 57' trailers (53'6" on roads less than 12' wide) and 85' overall (unless trailer exceeds 57')
Overhang: 10' front, 5' rear Note: 60' Structural steel is exempt from permits and escorts
Weight: 80,000 Gross Single – 20,000 Tandem – 34,000 Tridem – 42,000
ROUTINE PERMIT LIMITS:
Width: 16' (over 16' cannot use Interstate) Height: 15'5"
Length: 165' (maximum overhang 20')
Overhang: 20' rear overhang is the maximum permitted.
Weight: 5 axles – 110,000 6 axles – 122,000 7 axles 142,000
Steer – 14,000 maximum without special permission Single – 22,000 Tandem – 44,000 Tridem – 66,000
Loads exceeding these dimensions, over 120,000 on Interstate or 90,000- off Interstate are Super Loads.
Width: over 12' – 2 escorts. Height: over 15'5"* – 1 escort *(may be needed at lower heights on some routes)
Bucket or Blade Rule: If bucket or blade protrudes past sides of trailer – 1 escort. (No escort needed if outriggers are used to prevent bucket or blade from protruding sides of trailer).
Length: With legal trailer length, over 85' – 1 escort, over 105' – 2 escorts.
Overhang: over 5' rear overhang – 1 escort.
Miscellaneous: 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 the blade is detached. 60' Structural steel is exempt from permits and escorts.
SIGNS, FLAGS & LIGHTS:
“Oversize Load” signs front and rear of any overwidth or overlength vehicle. Flags must be placed at the front and rear corners of any over-dimensional load or vehicle. Over 4' rear overhang requires lights at night. (Over 5' needs permit, and can't run at night). There are no sign or flag requirements for overheight only or overweight only loads.