10-4-4: WALLS, FENCES AND BARRIERS:
   A.   Maximum Height:
      1.   Front Yards: Walls, fences and barriers not over six feet (6') in height may be erected on lot lines except in required front yard areas.
      2.   Other Yards: Fences not over three feet (3') in height may be built anywhere on the lot except as otherwise provided.
   B.   Nonvisual Barrier: A four foot (4') nonvisual barrier (i.e., chain link) fence may be substituted for a three foot (3') fence wherever a three foot (3') fence is indicated in these requirements. (1973 Code § 17.24.070)