Sec. 185. - Work done by city.

If such sidewalks be not constructed or repaired within thirty days after the service of the notice provided for in the preceding section, or the completion of the publication thereof, the director of public service may proceed by direct employment of labor, or by contract, to carry out the said construction or repair at the expense of the owner, as in the case of other improvements, and all such expense shall be reported by the director of public service to the council. The council shall thereupon by ordinance assess the cost and expense thereof upon the property bounding or abutting thereon, and such assessment, with interest, shall be collected in the same manner as other assessments.