1. (1) Movement of super heavy and/or extra-overdimensional loads may be permitted provided the highway can accommodate the move and the move is not considered to be detrimental or unsafe for the other traveling public. For the purposes of this rule, “super heavy” means that the total gross weight of the vehicle and load exceeds 165,000 pounds, and “extra- overdimensional” means that the width of the vehicle and load exceeds sixteen feet (16’) or the height of the vehicle and load exceeds fifteen feet six inches (15’6”).

   1. (a) Application must be submitted to the TDOT Permits Office and must contain, in addition to the information stated above in Rule 1680-07-01-.02, the following:

      1. 1. Complete and detailed proposal of movement, including a route survey;
      2. 2. Detailed sketch of vehicle and load;
      3. 3. Tire sizes and contact pressures;
      4. 4. Distance between axles;
      5. 5. Load distribution to axles;
      6. 6. Overall length, width and height of movement;
      7. 7. Detailed traffic control proposal; and
      8. 8. Any other information required. ON TENNESSEE HIGHWAYS
2. (2) Application should be submitted with sufficient advance notice, in accordance with Rule 1680- 07-01-.02, paragraph (3), so that the TDOT Structures Division may conduct required engineering examinations.
3. (3) Special permits for super heavy and/or extra-overdimensional movements shall be issued or withheld at the sole discretion of the Department based on engineering judgment of the necessity for, importance of, and safety of movement; alternative methods of transportation; and possible damage to roadway and appurtenances.

4. (4) The TDOT Permit Office may require, as a condition for issuing a special permit, that the movement of a super heavy and/or extra-overdimensional load shall be accompanied by a law enforcement escort, as follows:

   1. (a) In general, the TDOT Permit Office will evaluate the need for a law enforcement escort based on the width and height of the load, the complexity of the load or movement, the speed of the movement, and the conditions of the route to be traveled.
   2. (b) This law enforcement escort shall be in addition to any other escort vehicles required under this chapter.
   3. (c) The permit shall require the permittee to reimburse TDOT for the actual cost of providing the law enforcement escort.

Authority: T.C.A. § 55-7-205. Administrative History: Original rule filed July 1, 1982; effective August 2, 1982. Repeal and new rule filed October 31, 1985; effective November 30, 1985. Repeal and new rule filed June 19, 1991; effective August 3, 1991. Amendment filed January 25, 2001; effective May 31, 2001. Rule has been assigned a new control number from 1680-02-02-.12 filed and effective February 1, 2003. Amendments filed February 14, 2018; effective May 15, 2018.