(a) All trees within the City of twenty-four inches DBH or greater and all trees listed below by genus and/or species and minimum size DBH shall be considered landmark trees if they also meet the health/condition criteria of subsection (b) below:
COMMON NAME | BOTANICAL NAME | SIZE (DBH) |
COMMON NAME | BOTANICAL NAME | SIZE (DBH) |
Arborvitae | Thuja | 18" |
Beech | Fagus | 18" |
Birch | Betula | 18"* |
Black Gum | Nyssa sylvatica | 12" |
Blue Beech | Carpinus caroliniana | 8" |
Cedar, Red | Juniperus virginiana | 12" |
Chestnut | Castenea | 10" |
Dogwood | Cornus | 12" |
Douglas Fir | Pseudotsuga menziesii | 18" |
Fir | Abies | 18" |
Ginkgo | Ginkgo | 18" |
Hawthorn | Crataegus | 12" |
Hemlock | Tsuga | 18" |
Hickory | Carya | 18" |
Hornbeam | Ostrya | 8" |
Horsechestnut/Buckeye | Aesculus glabra carnea | 18" |
Kentucky Coffeetree | Gymnocladus Dioicus | 18" |
Larch/Tamarack | Larix | 12" |
London Plane/Sycamore | Platanus | 18" |
Magnolia | Magnolia | 8" |
Maple, Red | Acer rubrum | 18" |
Maple, Norway | Acer platanoides | 18" |
Pine | Pinus | 18" |
Redbud | Cercis canadensis | 8" |
Sassafras | Sassafras albidum | 15" |
Serviceberry | Amelanchier | 8" |
Spruce | Picea | 18" |
Sweetgum | Liquidambar styraciflua | 16" |
Tulip Tree | Liriodendron tulipifera | 18" |
Walnut | Juglans | 20" |
Wild Cherry | Prunus | 18" |
Witch Hazel | Hamamelis virginiana | 8" |
* If a birch tree has multiple trunks then its total DBH shall be computed by adding the DBH in inches of each of the trunks.
(b) In order to be considered a landmark tree, in addition to the above requirements, said tree shall also have a score of sixteen or higher as determined by the Department in accordance with the following health/condition criteria:
FACTOR | RANKING | 5 OR 4 | 3 OR 2 | 1
|
TRUNK
| sound and solid
| sections of bark missing
| extensive and hollow
| |
GROWTH/RATE
| more than 6" twig elongation
| 2"- 6" twig elongation
| less than 2" twig elongation
| |
STRUCTURE
| sound
| one major or several minor limbs dead
| 2 or more major limbs dead
| |
INSECTS/DISEASES
| no pests present
| one pest present
| 2 or more pests present
| |
CROWN/DEVELOPMENT
| full and balanced
| full but unbalanced
| unbalanced and lacking a full crown
| |
LIFE EXPECTANCY
| over 30 years
| 15-20 years
| less than 5 years
|
(c) When landmark trees are permitted to be removed, in addition to compliance with the provisions of Section 1028.12, replacement trees shall be provided to a minimum of seventy percent of DBH of the tree to be removed. Replacement trees, measured in DBH or calipers, shall be provided either individually or on an accumulative basis to meet the thirty percent DBH requirement; however, if on an accumulative basis all individual trees shall measure at least two and one-half inches in diameter.
(Ord. 682. Passed 8-18-99; Ord. 829. Passed 6-14-06.)