(1) Subject to the provisions of this section, all trees, shrubs, plants and vegetation growing within or projecting into the right-of-way of a street, avenue, highway, alley, pedestrian right-of-way or pedestrian easement, may be trimmed, pruned or removed at any time by the city, or the city may require the person responsible to abate any existing nuisance under chapter 6 of this code.
(2) Except as provided in subsection (3) of this section, no person shall trim or prune a tree growing within the public right of way in a manner not in compliance with the standards adopted by the city manager. The city manager shall adopt such standards as part of rules promulgated in accordance with section 2.019 of this code. The standards shall be designed to ensure that trees are not trimmed or pruned in a manner that causes damage to the tree or diminishes its health.
(3) The prohibitions set forth in subsection (2) of this section do not apply to EWEB when the trimming or pruning is necessary in order to protect its lines or crews.