1137.10 C-4 INTERSTATE COMMERCIAL DISTRICT SIGNS.
   In any C-4 (Interstate Commercial) District, the following shall apply:
   (a)    For any C-4 District, the following signs are allowed:
      (1)    Free-Standing Sign: Only one (1) free-standing sign is permitted per use and such freestanding sign (with the exception of highway signs described below) may not exceed twenty (20) feet or the maximum height of the building, whichever is less. The maximum sign area for a free-standing sign is one (1) square foot of sign area per linear foot of lot frontage, up to a maximum of one hundred fifty (150) square feet. The free-standing sign may not be located closer to the road right-of-way than ten (10) feet.
      (2)    Highway Signs: One (1) highway sign may be located on a property when such property is within five hundred (500) feet of a limited access highway if allowed and approved as a special use by the Planning Commission in accordance with Chapter 1112 (Special Use Permits). The maximum height of a highway sign shall be forty (40) feet and the maximum area of the sign shall be eighty (80) square feet. The lighting, materials, location, and orientation of the sign shall be approved as part of the special use, and reductions in sign area elsewhere on the property may be a condition of special use approval. The highway sign may not be located closer to the road right-of-way than ten (10) feet.
      (3)    Wall Signs: Wall signs attached to, or painted on, a wall surface of any building or structure may not occupy more than twenty (20) percent of any wall area of which such sign is a part or to which such sign is most nearly parallel. Only three (3) wall signs are permitted per building or structure.
   (b)    When a structure contains more than one (1) business establishment or when the owners of two (2) or more contiguous lots voluntarily agree to develop common signage, a common signage plan may be submitted and approved. Common signage plans may not exceed the following limitations:
      (1)    Maximum Sign Area: The total maximum sign area of all types (free- standing or attached to any building) shall not exceed either four (4) square feet of signage per linear foot of street frontage or eight (8) percent of the ground floor of the principal building or one thousand (1,000) square feet, whichever is less.
      (2)    Maximum Area of Wall Signs: The total maximum building wall area that may be used for signage is twenty (20) percent of the wall area.
      (3)   Maximum Number of Free-Standing Signs: Free-standing signs are limited to one (1) for each five hundred (500) feet of frontage.
   (c)    All signs may be internally or externally illuminated. Flashing signs are prohibited.
      (Ord. 2008-06. Passed 4-14-08.)