Tennessee

PERMITS:
Permits are valid for 10 days. Drive must have permit prior to entering state.

TRAVEL TIME:
Oversize/overweight loads are allowed continuous movement unless the load is over 16′ wide, 15’6″ high or over 165,000 lbs.

RESTRICTED TRAVEL:
Movements will not be allowed on the interstate system of highways between the hours of 6:00 a.m. – 9:00 a.m. and 3:00 p.m. – 6:00 p.m. from Monday through Friday in counties having a population exceeding 250,000. No travel on major holidays. Travel is also restricted the day(s) prior to and after major holidays.

LEGAL DIMENSIONS:
Width: 8’6″
Height: 13’6″
Length: Not to exceed 50′ from kingpin to end of trailer.
Overhang: 5′ (total for front and rear)
Weight: 80,000 Gross; Single – 20,000; Tandem – 34,000; Tridem – 42,000 (8′ spacing)

ROUTINE PERMIT LIMITS:
Width: 16′
Height: 15′
Length: 120′
Weight: Single – 20,000; Tandem – 40,000; Tridem – 60,000; 5 axles – 100,000; 6 axles – 120,000; 7 axles 140,000

ESCORTS:
Width: Over 10′ – 1 escort when pavement is less than 24′ wide, over 14′ – 2 escorts.
Height: Over 15′ (if approved) – 1 escort with height pole
Length: Over 85′ – 1 escort, over 120′ – 2 escorts.

MISCELLANEOUS:
Bulldozer blades or loads with protruding sharp objects of any kind, exceeding 10’6” in width, shall be loaded with the blade or protruding sharp object to the rear of the hauling equipment. No permits will be issued for blades or protruding sharp objects creating width in excess of 13’6″.

SAFETY REQUIREMENTS:
“Oversize Load” signs are required on all loads over 10′ wide and/or 75′ in length. Loads over 75’ long require a rotating amber light or strobe type light on the end of the load. Red flags are required on all overwide loads (front and rear) at the top and bottom of each side where load is widest. Red flags (18″) square are required on the extremities when load extends beyond the sides more than 4″. Flags must be placed at the extreme rear end of over length loads or when there is over 4′ rear overhang.