12.20.040 Willful injury to trees.
No person shall willfully injure or destroy any tree on public streets, public parks, or other public property of the city by any means including, but not limited to, the following:
A. Constructing a concrete, asphalt, brick, or gravel sidewalk or otherwise filling up the ground area around any tree so as to shut off air or water from the roots, except under written authority from the city forester.
B. Piling building material, equipment, or other substance around any tree so as to cause injury.
C. Pouring any injurious matter on or around any tree or on the ground around it or on any lawn or sidewalk.
D. Injuring any tree, tree stake, or guard with any vehicle or animal, or in any other manner causing injury to any tree or lawn or public property. [Code 2000 § 12-4-4].