Whenever any street, land, or alley in the city has been graveled or paved without curbs, it shall be the duty of the Director of Public Works to serve or cause to be served a written notice upon the owner or agent of any lot or parcel of land abutting that street which has a driveway approach or other obstruction leading from the lot or parcel of land to the traveled portion of the street, requiring him, her, or them to install pipes in all such driveways, approaches, or obstructions in accordance with §§ 90.050 and 90.051 of this code, within 10 days after the completion of the work of graveling or paving that street. It shall further be the duty of the Director to serve or cause to be served the notice as above mentioned upon the owner or agent of any lot or parcel of land abutting any street in the city which has been graveled or paved, who has not complied with the conditions specified in §§ 90.050 and 90.051 hereof. In case the Director or other authorized agent or employee shall be unable to find, within the city, the owner or agent of any such lot or parcel of land abutting that street, then the notice may be served by posting in some conspicuous place on the lot and premises.