~4< all not in any way restrict the right widen, raise or lower the roadway or notwithstanding thae on in width or elevation or both may Works useless for the Purposes of the owner AND in the event that the City does alter the width or elevation or both of the said Toadway or boulevard, and foraver discharges the c nature discontinuance alteration in width or elevation or both. il. The City may at any time in its sole discretion withdraw the rights it has granted herein to the Owner and in the event of such withdrawal, for any cause or reason whatsoever, the Owner shall, at his own expense, within a period of six (6) months from the date of Teceiving such noticsa of withdrawal or within such Shorter time as May he specifiad by the City's Council, remove the Works and fill up any excavation made, constructed or Maintained with respect to it, and otherwise restcre the site to the satisfaction of the City Engineer, 12, Ta the event the Owner fails to keep the Works or any covering or structure Pertaining thereto in good and sufficiene repair to the Satisfaction of the City, or in the avent the Owner fails to remove the 45 he deems necessary, or Works or #411 in the exGavation as the case may be, and the owner Shall pay the Costs of the repairs, removal or filling in to the City forthwith. whenever it is deliver or serve a notice deliver or sarvice shall be med to have occurred when: thar Party has been served Personally, on che date Of service; or mailad by Prawpald registered mail, on the date received or on the sixth aay aftar receipt of Mailing by any Canada pose offica, whichever is the earlier, so long as the Rotica is mailed to the party at the Most recent address shown on 1997 40