Sec. 7-2.613. Open trenches.
   In any trenching operation, the open trench shall not be in excess of one day's work ahead of the trench work proper unless specifically authorized by the City Engineer. When any excavation is commenced, the work of making and refilling shall be prosecuted diligently until completion.
(§ 11203, T.O.O.C., as added by Ord. 50)