No person shall place or maintain upon the ground in any public property any stone, concrete, brick, or other impervious material or substance in such a manner as may impede the free access of air and water to the roots of any tree upon any public property without first having obtained written permission from the Arborist. Unless otherwise provided for, there shall be maintained about the base of the trunk of each such tree at least nine (9) square feet of open ground for a tree three (3) inches in diameter. For every two (2) inches of increase in such diameter, there shall be an increase of at least one (1) square foot of open ground.
Nothing in this section shall prevent the City from placing or allowing to be placed and/or maintaining any public walk, street curb, street pavement, and incidentals thereto and necessary for the public health, safety, and welfare. (Ord. 2007-94. Passed 9-19-07.)