Conditions For Permitting Movement Of Roof Trusses

(1) For movements not exceeding ten feet (10’) wide, no escort vehicle, special signs, lights, or markings shall be required. OVERWEIGHT AND OVERDIMENSIONAL MOVEMENTS CHAPTER 1680-07-01 ON TENNESSEE HIGHWAYS (2) Movements over ten feet (10’) wide, but not exceeding twelve feet (12’) wide: (a) No escort vehicle shall be required to accompany the movement on the Interstate highway system, four (4) lane highways, or two (2) lane highways with a minimum pavement (roadway surface) width of twenty-four feet (24’). (b) One (1) escort vehicle shall be required to precede the movement where the minimum pavement (roadway surface) width is less than twenty-four feet (24’). (c) A flagperson shall be required at all bridge structures where the roadway width is less than twenty feet (20’). (d) The front and rear of the movement shall be signed and marked as hereinafter set out in Rule 1680-07-01-.20. (e) Escort vehicles shall be marked as hereinafter set out in Rule 1680-07-01-.21. (3) Movements over twelve feet (12’) wide, but not exceeding fourteen feet (14’) wide: (a) Front and rear escort vehicles shall be required on all two (2) lane highways. Front escort vehicles shall not be required on Interstate highways or four (4) lane highways. Front and rear escort vehicles shall be required on Interstate highways where two (2) lanes are traveled. (b) Towing vehicles and escort vehicles shall be so equipped as to be in radio communication at all times during movement. (c) The front and rear of the movement shall be appropriately signed and marked. The front and rear of the movement shall be signed and marked as hereinafter set out in Rule 1680-07-01-.20. (d) Escort vehicles shall be marked as hereinafter set out in Rule 1680-07-01-.21. (e) Towing vehicles for fourteen feet (14’) wide movements shall be at least fourteen feet six inches (14’6”) in length.