1. If the use, excavation or encroachment of such street, avenue, boulevard, road, alley, public easement, or highway is of such nature to cause or result in disturbance or change, and the applicant fails or refuses to restore and replace such in substantially the same condition as before such use, excavation or encroachment, within thirty days after the completion of such use, excavation or encroachment, or such longer period as may be provided in writing by the county highway engineer and surveyor, such office shall give written notice to the applicant to refill, replace and restore such street, avenue, boulevard, road, alley, public easement, or highway in as good condition as it was at the time of such use, excavation or encroachment was commenced, and to keep and maintain the portion of such so affected in such condition for a period of six months from the date so fixed for the completion of such work, and to save the county harmless from any cost or expense occasioned or required in the refilling, repairing, restoring of such highway for such period, due to or occasioned by such use, excavation or encroachment.

2. If the applicant fails or refuses to make proper restoration of said premises as required in such notice, within ten days after receipt of a registered letter containing such notice the highway engineer and surveyor may cause the necessary work to be done and charge the expense thereof to such applicant, deducting the amount therefor from the cash deposit made by such applicant or by an action on the bond, as the case may be.

3. Any balance due the applicant from the cash deposit on hand, if any, shall be paid such applicant upon the fulfillment of all obligations hereunder. Any deduction from such deposit or recovery from such bond shall not excuse or relieve such applicant from any prosecution, conviction, fine or any penalty imposed for violation of any of the provisions of sections 229.300 to 229.370.