Where uncertainty exists as to the boundaries of any zoning districts shown on the official zoning map, the following rules shall apply.
(1) Where a zoning district's boundaries approximately follow a lot, alley, or street line, such lot lines and street and alley centerlines shall be construed as the district boundaries; otherwise, such boundaries shall be determined by use of the scale appearing on the zoning map unless dimensions are specifically indicated.
(2) Where a public street or alley is officially vacated or abandoned, the property encompassed by said street or alley shall be included within the zoning district or districts of the adjoining properties. If the adjoining properties are in different zoning districts, the boundary lines shall be the centerline of the former street or alley and the extension of the side yard lines of the abutting properties. In the event such street, alley, or right-of-way was a boundary between two or more different zoning districts, the new zoning district or zone boundary shall be the property line that is created by such vacation.
(3) Areas annexed to the city shall come into the city at their existing zone designation. If there is no prior designation, the city council shall determine the nearest comparable zone for the area. The zoning map shall then be amended to show the new city limits and zone.
(4) In the event of any other uncertainty regarding zone boundaries, the city council, by written decision, shall determine the location of the zone boundary.
(Ord. 612 Exhibit A (part), 2008).