§42-178.
Plant Material Placement
Trees shall be placed within the right-of-way or within 20 feet of the edge of the right-of-way. Trees may be placed
in groups with a minimum spacing of no less than 15 feet and a maximum spacing of no more than 65 feet. Where
street trees are required in the vicinity of existing/proposed above grade power lines the following shall apply: (1)
trees may be placed up to 30 feet from the edge of the right-of-way to prevent interference with power lines; or,
where this is not possible, (2) trees may be placed elsewhere within the development in proposed buffers, parking lot
landscaping, etc..