The commission may contract for the survey and location of the proposed change of line and for such purpose may employ three competent disinterested surveyors, who are nonresidents of the counties affected, two to be selected by the commission and the third by the two selected by the commission. Such surveyors shall clearly mark the proposed change of line upon the land with due regard to all legal provisions and limitations and certify plats showing such line.
S.C. Code § 4-5-140