Vision clearance at corners

In the triangle formed by the lines of street rights-of-way intersecting at an angle of less than one hundred thirty five (135) degrees and a line joining points on such lines thirty (30) feet distant from their point of intersection, no building or structure and no vegetation may be maintained between a height of two and one half (2½) feet and ten (10) feet above the plane through their street grades. All fences, hedges and walls within ten (10) feet of the property line shall not exceed two and one half (2½) feet in height.