Where uncertainty exists as to the boundaries of districts as shown on the Official Zoning Map, the following rules shall apply:

1.   Boundaries indicated as approximately following the centerline of streets, highways, or alleys shall be construed to follow such centerline.

2.   Boundaries indicated as approximately following platted lot lines shall be construed as following such lot lines.

3.   Boundaries indicated as following corporate limits shall be construed as following corporate limits.

4.   Boundaries indicated as following railroad lines shall be construed to be midway between the main tracks.

5.   Boundaries indicated as following shore lines shall be construed to follow such shore lines, and in the event of change in the shore line shall be construed to move with the actual shore line; boundaries indicated as approximately following the centerlines of streams, rivers, canals, lakes, or other bodies of water shall be construed to follow such centerlines.

6.   Boundaries indicated as parallel to or extensions of features indicated in Subsections 1 through 5 shall be so construed. Distances not specifically indicated on the Official Zoning Map shall be determined by the scale of the map.

Where physical or cultural 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 6 above, the Board of Adjustment shall interpret the district boundaries.