No person shall injure or tear up any pavement, side or crosswalk, drain, sewer, or any part thereof, in any street, pavement or sidewalk, without due authority, nor shall any person hinder or obstruct the making or repairing of any side or crosswalk or pavement, which is being made under resolution of the City Council, nor hinder or obstruct any person employed to make or repair any public improvement, ordered by the City Council.
('60 Code, Ch. 11, Art. 47) Penalty, see § 131.99