No person shall place any bridging over any gutter or any pipe or other obstruction in any gutter without first obtaining permission in writing from the Superintendent of Public Works.
No person shall place or maintain any drop awning extending over any sidewalk which, when lowered, shall be left at seven feet above the sidewalk.
Temporary awnings may be erected across the sidewalk and permitted to remain for a period not exceeding 24 hours, provided that they are securely fastened and so arranged as to permit travel along the sidewalk.
No person shall cut through or lower the curb or change the grade of a sidewalk for the purpose of making a driveway without obtaining a permit from the Superintendent of Public Works. The fee for such a permit, the manner of obtaining it, and the manner of conducting the work shall be the same as provided in Article VII, Construction and Repair of Curbs and Sidewalks, for the construction of sidewalks.