The boundaries between districts are, unless otherwise indicated, either the centerlines of streets or railroad rights-of-way, or such lines extended, or lines parallel or perpendicular thereto. Where figures are shown on the zoning map between a street line and a district boundary, they shall indicate that the district boundary runs parallel to the center-line of the right-of-way of the street at a distance therefrom equivalent to the number of feet so indicated. Where the boundaries of a single district are indicated as including directly opposite sides of a street, lake or watercourse, or right-of-way of a utility line, for any portion of its length, the district so indicated shall be construed to apply to the entire bed of such street, lake or watercourse, or right-of-way of such utility line, lying within such portion of its length. Where uncertainty exists as to the location of any boundaries shown on the zoning map, the following rules shall apply:
A.
Where a district boundary is indicated as approximately following the center-line of a street, lake or watercourse, or right-of-way of a utility line, such center-line shall be construed to be such boundary.
B.
Where the district boundary is indicated as approximately following a lot line, or other property line, such lot line or other property line shall be construed to be such boundary.
C.
Where a district boundary divides a lot or runs through undivided property, the location of such boundary unless otherwise specified by figures on the zoning map, shall be determined by the use of the scale appearing on said map.
D.
Where scaled distances on the map do not agree with figures indicating the distance in feet, the figures shall always control.
E.
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 the above, the Zoning Hearing Board, upon appeal, shall interpret the district boundaries.