(Amended by Ordinance Nos. 182760, 184957 and 189413, effective March 6, 2019.) Where the sidewalk or curb in front of any lot, part thereof, or parcel of land is or becomes so worn or deteriorated as, in the opinion of the City Engineer, to require a new sidewalk or curb to be constructed, or where no sidewalk or curb exists and, in the opinion of the Director of the Bureau of Transportation, a sidewalk or curb or both are needed, it shall be the duty of the City Engineer to post a notice on the adjacent property headed “Notice to Construct Sidewalk” (or curb, or both). The notice shall in legible characters direct the owner, agent, or occupant of the property immediately to construct a sidewalk or curb or both in a good and substantial manner and in accordance with the City ordinances, regulations and plans therefore which will be furnished by the City Engineer upon application. The City Engineer shall file with the Revenue Division an affidavit of the posting of the notice, stating when and where the same was posted, and shall furnish upon request proper specifications, standards and information for the construction thereof. The City Engineer shall send by mail a notice to construct the sidewalk or curb, or both, to the owner of the property, if known, or to the agent of the owner, if known, directed to the post office address of the owner or agent, when the post office address is known to the City Engineer. If the post office address is unknown to the City Engineer, the notice shall be directed to the owner or agent at the address where the notice was posted. A mistake in the name of the owner or agent, or a name other than that of the owner or agent of such property, or any mistake in the address, shall not render void the notice, but in such case the posted notice shall be sufficient.