9-12-8: NONCONFORMING SIGNS:
   A.   Existing Signs: An existing on premises sign on private property that does not conform to the size or height regulations of this chapter may be continued as allowed by this section.
   B.   Changes Or Alterations: A nonconforming sign shall not be changed, expanded or altered in any manner, which would increase the degree of its nonconformity, or be structurally altered to prolong its useful life, or be moved in whole or in part to any other location where it would remain nonconforming.
   C.   Termination Of Nonconforming Signs:
      1.   Change In Business: Nonconforming signs, which advertise a business no longer conducted, shall be terminated by the city within thirty (30) days after closure of the business.
      2.   Damage Or Destruction: Any nonconforming sign damaged or destroyed, by any means, to the extent of fifty percent (50%) of its replacement cost, shall be terminated and shall not be restored. For the purpose of this regulation, the value of any sign shall be the estimated cost to replace the sign, as determined by the city.
      3.   Termination: Termination shall consist of either removal of the sign or alteration of the sign to eliminate all nonconforming features. (Ord. 639, 6-1-2005)