Where uncertainty exists as to the boundaries of districts as shown on the official zoning map, the following rules shall apply:
A. CENTER LINES OF STREETS AND BOUNDARIES.
Unless otherwise indicated, the district boundary lines are the centerlines of streets, parkways, alleys, or railroad right-of-way, or such lines extended.
B. APPROXIMATIONS.
Boundaries indicated as approximately following section line limit, half section and quarter section lines and town corporate limit lines, or platted lot lines shall be construed as following such lines.
C. RAILROAD LINES.
Boundaries indicated, as following railroad lines shall be construed to be midway between the main tracks.
D. SHORE LINES AND WATERWAYS.
Boundaries indicated as following shore lines shall be construed to follow the shore lines, and in the event of change in the shore lines shall be construed as moving with the actual shore lines. Boundaries indicated as approximately following the center lines of streams, creeks, lakes, or other bodies of water shall be construed to follow such center lines. However, where streams and rivers meander from their beds as they existed on the effective date of this ordinance, the boundary shall be construed as following the original stream or riverbed.
E. USE OF SCALE ON ZONE MAP.
Boundaries indicated as parallel to or extensions of features indicated in divisions (A) through (D) above shall be so construed. Distances not specifically indicated on the official zone map shall be determined by the scale of the map.
F. COMMISSION MAY DETERMINE.
Where physical or cultural features existing on the ground are at variance with those shown on the official zone map, or in other circumstances not covered by divisions (A) through (F) herein, the Planning Commission shall interpret the district boundaries.
G. VACATIONS AND RELOCATIONS.
The vacation or relocation of rights-of-way and lot lines shall not affect the location of district boundaries. However, whenever proper authority vacates any right-of-way, the districts adjoining each side of such vacation shall be extended automatically to the center of such vacation.
H. LINES SPLITTING LOTS.
1. Where a boundary line of a district divides a lot having frontage on a street so that the front part of the lot lies in one district and the rest of the lot lies in another, use requirements and restrictions that apply to the front part of the lot apply to the entire lot. The Board of Zoning Appeals, on appeal, shall interpret the applicable regulations for either portion of the lot not to exceed 50 feet beyond the district boundary line into the remaining portion of the lot.
2. Where a district boundary line divides a lot which does not have frontage on a street or has frontage on more than one street the Board of Zoning Appeals, upon appeal, shall interpret the applicable regulations for either portion of the lot not to exceed 50 feet beyond the district boundary line into the remaining portion of the lot.