Should any owner, agent of the owner or occupant of any building or land adjacent to a public sidewalk fail to remove therefrom any obstruction or snow or ice or cover the ice with sand or some other suitable substance within the periods prescribed by §§
139-1 and
139-2, the Town may proceed to have the required work completed, and the expense of such work shall be assessed against the owner of the premises adjacent to the sidewalk where such work is performed, and such expense shall be a lien against such adjacent premises, provided that the Director of Finance causes to be filed a certificate of lien in the Town Clerk's office within 60 days from the completion of such work. The provisions of this section shall be in addition to fines for violations.