(A) The Street Superintendent shall establish the grades for all sidewalks, and the same shall conform, as nearly as may be possible to the grades of their respective streets. Where no permanent grade is established, the Street Superintendent may give a temporary grade.
(B) No person may construct or lay, or cause to be constructed or laid, any sidewalk where no grade has been established by the Street Superintendent, or contrary to any grade given by the Street Superintendent.
Penalty, see § 97.999