It is unlawful to erect, build or construct any building, structure or improvement within the City below the official grade of the street as determined by the Mayor and Common Council except as follows: that in the event that the City Engineer determines by reason of mountains, hills or other topography that it is impractical to conform to the official grade, then, and in that event, the City Engineer shall notify the Chief Building Inspector of such determination and an exception shall be granted hereto permitting the erection or construction of buildings and structures at other than the official grade.
(Ord. 2265, 6-23-59; Ord. 1900, 11-30-50)