4768 Stephens St 1 Roseburg, OR 97470-1087

C2 General Commercial C3 Mixed Use MU Industrial Light Industrial M1 Medium Industrial M2 Heavy Industrial M3 Mixed Use MU F. Interpretation of zone boundaries. Whenever an uncertainty exists as to the boundary of a zone as shown on the official zoning map, the following rules of interpretation shall apply: 1. Boundaries indicated as approximately following the centerlines of streets, highways, or alleys shall be construed to follow such centerlines. 2. Boundaries indicated as approximately following platted lines shall be construed to follow such plat lines. 3. Boundaries indicated as approximately following City limits shall be construed to follow such City limits. 4. Boundaries indicated as following railroad lines or public utility easements shall be construed to be midway between the main tracks or utility easement, whichever is applicable. 5. Boundaries indicated as following the centerlines of streams, rivers, canals, or other bodies of water shall be construed to follow said centerlines. 6. Boundaries indicated as following shorelines shall be construed to follow the mean high water line. 7. Boundaries indicated as parallel to or extension of features indicated in the above Subsections (1) through (6) of this Section shall be so construed. 8. Where physical features existing on the ground vary with those shown on the official zoning map, or in other circumstances not covered by the above Subsections (1) through (6) of this Section, the Director shall interpret the zone boundaries, and, if necessary, may refer the matter to the Planning Commission for its interpretation pursuant to Section 12.02.070 . 9. Where a public street or alley is officially vacated, the zone requirements applicable to the property to which the vacated area becomes a part shall apply. G. Overlay districts. Any portion of a zone district may be subject to additional consideration by the establishment of regulations that "overlay" the parent district. These "overlay districts" may be applied singularly, or in any combination thereof, through application for a zone change pursuant to Section 12.10.040 , and are designed to ensure that the various considerations contained in the text of such overlay district are employed in using and developing land subject to an overlay district. 1. Airport Impact Overlay.