(a) When uncertainty exists as to the boundaries of districts as shown on the official zoning map, the following rules apply:
(1) Boundaries indicated as approximately following the center lines of streets, highways, or alleys are construed to follow those center lines.
(2) Boundaries indicated as approximately following platted lot lines are construed as following those lot lines.
(3) Boundaries indicated as approximately following city limits are construed as following city limits.
(4) Boundaries indicated as following railroad lines are construed as following the established center line of a railroad right-of-way. If no center line is established, the boundary is midway between the railroad right-of-way lines.
(5) Boundaries indicated as following shore lines are construed to follow shore lines. If the shore line changes, the boundaries are construed as moving with the actual shore line.
(6) Boundaries indicated as approximately following the center lines of streams, rivers, canals, lakes, or other bodies of water are construed to follow those center lines. The center line is interpreted as being midway between the shore lines of the body of water. If the center line changes, the boundaries are construed as moving with the center line.
(7) Boundaries indicated as parallel to or extensions of the features described in Subsections (a)(1) through (a)(6) are construed as being parallel to or extensions of the features.
(8) Boundaries indicated as dividing a lot or tract are construed to be located as shown on the zoning district map.
(b) Distances not specifically indicated on a zoning district map are determined by the scale of the map.
(c) Whenever a street, alley, or other public way is vacated by official action of the city council, the zoning district line adjoining each side of the street, alley, or other public way automatically extends to the center line of the vacated street, alley, or public way.
(d) When there is a question as to the boundary of a tract and that question cannot be resolved by the application of Subsections (a) through (c), the board of adjustment shall determine the boundary by interpreting the official zoning district map and ordinances amending the map.
(e) When there is a question as to whether or how a tract is zoned and that question cannot be resolved by the application of this section, the tract is temporarily classified as an agricultural district, and the tract is subject to the same regulations as provided for annexed territory temporarily zoned.