N.C. Gen. Stat. § 156-78

The clerk of the superior court shall provide a suitable book, to be known as the "Drainage Record," in which he shall transcribe every petition, motion, order, report, judgment, or finding of the board in every drainage transaction that may come before it, in such a manner as to make a complete and continuous record of the case. Copies of all the maps and profiles are to be furnished by the engineer and marked by the clerk "official copies," which shall be kept on file by him in his office, and one other copy shall be pasted or otherwise attached to his record book.