§ 70.38 OBSTRUCTIONS AT STREET INTERSECTIONS.
   (A)   On property at any corner formed by intersecting streets, it shall be unlawful to install, set out, maintain, or to allow the installation, setting out, or maintenance of any sign, hedge, shrubbery, natural growth, or other obstruction to the view higher than 42 inches above the level of the center of the adjacent intersection within that triangular area between the property line and a diagonal line joining points on the property lines 25 feet from the point of their intersection, or in the case of rounded corners the triangular area between the tangents to the curve and a diagonal line joining points on the tangent 25 feet from the point of their intersection. The tangents referred to are those at the beginning and at the end of the curve at the corner.
   (B)   The provisions of division (A) of this section shall not apply to:
      (1)   Permanent buildings;
      (2)   Public utility poles;
      (3)   Trees trimmed to the trunk to a line at least eight feet above the level of the intersection;
      (4)   Saplings or plant species of open growth habits and not planted in the form of a hedge, which are so planted and trimmed as to leave at all seasons a clear and unobstructed crossview;
      (5)   A supporting member of appurtenances to permanent buildings already existing;
      (6)   Official warning signs or signals to places where the contour of the ground is such that there can be no cross-visibility at the intersection; or
      (7)   To signs mounted ten feet or more above the ground and whose supports do not constitute an obstruction as found in this section.
   (C)   No obstruction to cross-visibility shall be excepted from the application of this section because of its being in existence, unless expressly exempted by the terms of this section.
   (D)   The enforcement of this section shall be under the direction of the Chief of Police. The Chief of Police shall investigate violations of this section, give any notices that may be required to carry out this section, and perform other duties in connection with the enforcement of this section if required.
   (E)   Any obstruction maintained in violation of this section shall be deemed a nuisance. Upon failure of the person responsible to abate the nuisance within 20 days after the posting upon the premises of notice to abate, signed by the Chief of Police, the representative of the Chief of Police may do any of the following:
      (1)   Enter upon the premises and remove or eliminate the obstruction;
      (2)   Declare what constitutes a nuisance;
      (3)   Prevent the nuisance or require its abatement;
      (4)   Authorize removal of the nuisance by the proper officers;
      (5)   Provide for the punishment of the person causing or suffering the nuisance;
      (6)   Assess the expenses of its removal against that person; and
      (7)   Provide for the collection of these expenses, either by causing them to be placed on the tax duplicate or by court action.
(`81 Code, § 70.38) Penalty, see § 70.99