Where district boundaries are indicated as approximately following the center lines of streets, highways, street lines, highway right-of-way lines, or streams, such center lines shall be construed to be such boundaries.

Where district boundaries are indicated as approximately following lot lines, such lot lines shall be construed to be such boundaries.

Where district boundaries approximately follow a railroad, such boundaries shall be deemed to be located in the center of such railroad right-of-way.

Where the boundary of a district follows a stream or other body of water abutting another municipality, the boundary shall be deemed to be the limits of jurisdiction of the Township unless otherwise indicated.

Where streets, property lines or other physical boundaries and delineations are not applicable, boundaries shall be determined by the scale shown on the original Zoning Map on file in the office of the Township Secretary.

Where physical or cultural features existing on the ground are at variance with those shown on the Zoning Map, or in other circumstances not covered in § 400-9, the Zoning Hearing Board shall interpret the district boundary.

When a district boundary line divides a lot held in single and separate ownership at the effective date of this chapter, the regulations which apply to the use in a less restricted district shall extend over the portion of the lot in the more restricted district a distance of not more than 100 feet beyond the district boundary line.