Whenever any crossing or culvert or bridge shall be needed upon the line of any railroad within the city, or the same shall be deemed insufficient or unsafe or shall need repairing, it is the duty of the city manager or of the mayor to give such company five (5) days' notice of the work to be done and the place which requires it; and in the event said railroad company neglects or refuses to construct or repair such crossing, culvert or bridge after having received the notice, said railroad company shall be deemed guilty of a violation of this section and shall be fined as hereinafter provided. (Prior code § 21-14)