The spacing of street trees will be in accordance with the three species size classes referred to in the list adopted in § 97.25, and no trees may be planted closer together than the following, except in special plantings designed or approved by the Tree Commission:
Small trees: 30 feet
Medium trees 40 feet
Large trees 50 feet
(Ord. 10-87, passed 12-7-87) Penalty, see § 10.99