It shall be unlawful for any person to dig any trench or make any excavation or opening or any other alteration in any street, alley, public highway, right-of-way or easement of the city without first having obtained a permit to do so.
(Ord. 880202, passed 2-2-1988; Ord. 891219, passed 12-19-1989)  Penalty, see § 92.99