Where uncertainty exists with respect to the boundaries of any of the aforesaid districts as shown on the zoning map, the following shall apply:
(1) Boundaries indicated as approximately following the centerlines of streets, highways, alleys, streams, rivers or other bodies of water shall be construed to follow such lines.
(2) Boundaries indicated as approximately following platted lot lines shall be construed as following such lot lines.
(3) Boundaries indicated as approximately following town limit lines shall be construed as following such town limit lines.
(4) Where district boundaries are so indicated that they are approximately parallel to the centerlines of streets, highways or railroads, or rights-of-way of same, such district boundaries shall be construed as being parallel thereto and at such distance therefrom as indicated on the zoning map. If no distance is given on the map, such dimension shall be determined by the use of the scale shown on said zoning map.
(5) Where physical features existing on the ground are at variance with those shown on the official zoning map, or in other circumstances not covered by subsections (1) through (4) of this section, the board of adjustment shall interpret the district boundaries only upon appeal from a decision of the zoning administrator.
(Code 1989, § 92.018)