N.C. Gen. Stat. § 156-22
The freeholders, commissioners or jurors, appointed in any application or proceeding filed or instituted under G.S. 156-21 or any other section of Article 1 of this Chapter, are authorized and empowered during the establishment of and providing for the construction, maintenance and payment therefor, of such ditch, canal or drain, to make other and further assessments for the costs of establishment, construction and expense, when it shall be determined by the clerk of the court that the provisions in the former report for the payment thereof are insufficient, and that such supplementary reports shall be made on the same basis of an equitable and just proportion, as made in the former report, which report or reports shall be filed with the clerk of the superior court and have the same force and effect as the former or original report.
In case of death, resignation, removal or for any other cause there becomes a vacancy as to the freeholders, commissioners or jurors, appointed to carry out the provisions of the sections contained in this Chapter, the clerk of the superior court is authorized to fill such vacancy by the appointment of some disinterested freeholder in the county, and the said person so appointed to fill such vacancy shall qualify before the clerk of the superior court before entering upon his duties.
N.C. Gen. Stat. § 156-22