(A) It shall be the duty of every person engaged in digging down into any street, alley or sidewalk for any purpose, where the work, if left exposed, would be dangerous to users thereof, to erect a fence or railing at the excavations or work in such a manner as to prevent danger to persons who may be traveling the street, and to continue and uphold the railing or fence until the work shall be completed or the obstruction or danger removed. It also shall be the duty of the persons to place upon the railing or fence at twilight suitable and sufficient lights and keep them burning throughout the night during the performance of the work.
(B) The provisions of this section shall apply to every person who shall place building materials in any of the public streets or avenues or be engaged in building any vault or constructing any lateral drain from any cellar to any public sewer or who shall do or perform any work causing construction in the public streets by virtue of any permit from any executive department, and also to all public or Village officers engaged in performing any work in behalf of the Village whereby obstructions or excavations shall be made in the public streets.
('73 Code, § 29-66)