A. Applicability And Exemptions: Tree preservation shall be applied to parcels that are greater than five (5) acres with the exception of the following:
1. Agricultural uses.
2. Single- and two-family dwelling units which have trees that cover less than twenty five percent (25%) of the parcel.
3. Diseased trees or trees that are damaged to the point where they would no longer be considered healthy or pose a danger to the occupant or structure(s).
4. For personal use for firewood for single- and two-family dwelling uses.
5. For construction purposes where no alternate plan is feasible based on site conditions.
B. Tree Removal: No live trees that are four inches (4") or greater in diameter at a height of five feet (5') may be removed without first submitting an application for tree removal and receiving approval.
C. Tree Removal Permit: The application for tree removal shall be made to the county land use department. This application must be submitted and approved prior to the site grading plan permit issuance. The plan shall include the following:
1. A tree survey showing the location of all trees that are four inches (4") in caliper or greater within one hundred feet (100') of any tree proposed to be removed, including a description of the tree(s), botanical name, common name, caliper size, and general condition or health of the tree(s). The survey shall be completed by an International Society Of Arboriculture certified arborist or Illinois department of natural resources consultant forester.
2. Delineation of trees to be removed and trees to be preserved.
3. Details and specifications or procedures to be used to protect trees being preserved.
4. Location, size, and name of the replacement trees.
D. Tree Preservation And Removal Guidelines:
1. Preservation: Every reasonable effort shall be made to retain existing trees shown on the tree survey through the integration of those trees into the site plan and landscape plan for proposed development.
a. Critical areas, such as forested riparian zones, steep slopes, and wetlands, should be left in their natural condition or only partially cleared where invasive plants are located. Resource preservation standards are listed in section 8-4-2-2, "Resource Protection Levels", of this title.
b. Cutting and filling within the vicinity of the preserved trees should be minimal.
c. On all lots, the area that is within fifty feet (50') of the front lot line shall be preserved unless there is a demonstrated need for removal due to driveway or utility access.
d. On corner lots, existing trees in street side yards that abut collector or arterial streets shall be preserved unless there is a demonstrated need for removal due to driveway or utility access.
e. If more than one-third (1/3) of the tree's root system is to be affected by construction (such as compaction of the soil, cutting, etc.), the tree should be part of the removal plan and replaced with the appropriate number of trees.
2. Preconstruction Protection Measures:
a. A temporary six foot (6') orange construction safety fence, rigid wood fence, or chainlink fence, along with signage, must surround the periphery of the tree drip line as a construction barrier prior to the start of any site work.
b. If construction limits encroach within the drip line of the tree, the following procedures will be required:
(1) Trunk wrapping from the base of the tree to a height ten feet (10') above grade. No attachments, such as board shall be attached with nails or other fasteners to the tree.
(2) Underground utility lines that are proposed within five feet (5') of the preserved trees shall be augured or bored. This should be clearly shown on the plans.
3. Tree Removal: Trees shall be removed if the following conditions exist:
a. Dead from natural causes.
b. Pose a safety hazard to people or property.
c. Substantially diseased or weakened by age, storm, fire or other injury.
d. The tree removal is of a nuisance tree as listed below:
NUISANCE TREES | |
Common Name
|
Scientific Name
|
NUISANCE TREES | |
Common Name
|
Scientific Name
|
Ash, green | Fraxinus pennsylvanica spp. |
Ash, white | Fraxinus americana spp. |
Autumn olive | Eleagnus umbellate |
Black locust | Robina pseudoacacia |
Boxelder | Acer negundo |
Common buckthorn | Rhamnus cathartica |
Cottonwood | Populus deltoids |
European ash | Fraxinus excelsior |
Gingko (female) | Gingko biloba |
Golden rain tree | Koelreuteria paniculata |
Osage orange | Maculra pomifera |
Russian olive | Eleagnus angustifolia |
Siberian elm | Ulmus pumila |
Silver maple | Acer saccharinum |
Tree of heaven | Ailanthus altissma |
White mulberry | Morus alba |
Willow | Salix, spp. |
4. Acceptable Landscaping:
SHADE TREES | |
Common Name
|
Scientific Name
|
SHADE TREES | |
Common Name
|
Scientific Name
|
Coffee tree, Kentucky | Gymnocadius dioica |
Ginkgo | Ginkgo biloba |
Hackberry | Celtis occidentialis |
Honey locust | Gleditsia tricanthos |
Linden, American | Tilia americana spp. |
Linden, little leaf | Tilia cordata spp. |
Linden, silver | Tilia tomentosa |
Maple, black | Acer nigrum |
Maple, Norway | Acer platanoides spp. |
Maple, red | Acer rubrum |
Maple, sugar | Acer saccharum |
Oak, burr | Quercus macrocarpa |
Oak, swamp white | Quercus bicolor |
Oak, white | Quercus alba |
Pear, Bradford | Pyrus calleryana |
Pear, Cleveland select | Cleveland select |
Sycamore | Platanus occidentalis |
Tulip tree | Liriodendron tulipfera |
EVERGREEN TREES | |
Common Name
|
Scientific Name
|
Fir, douglas | Pseudotsuga menziesli |
Fir, white | Abies concolor |
Pine, Austrian | Pinus, nigra |
Pine, Scotch | Pinus sylvestris |
Pine, white | Pinus strobes |
Spruce, Black Hills | Picea glauca densata |
Spruce, Colorado | Picea pungens |
Spruce, Norway | Picea abies |
Spruce, white | Picea strobes |
ORNAMENTAL TREES | |
Common Name
|
Scientific Name
|
Alder | Alnus glutinosa |
Birch, river | Betual nigra |
Hawthorn, downy | Crataegus molis |
Hawthorn, thornless | Crataegus crusgali inermis |
Hawthorn, Washington | Crataegus phaenopyrum |
Hornbeam, American | Carpinus carolinaiana |
Lilac, Japanese tree | Syringa reticulate |
Magnolia, saucer | Magnolia soulangiana |
Magnolia, star | Magnolia stellata |
Redbud | Cercis canadensis |
Serviceberry, apple | Amelanchier grandflora |
Serviceberry, shadblow | Amelanchier canadensis |
a. Any tree approved for removal shall be replaced with new trees that have a minimum caliper of two and one-half inches (21/2") and shall consist of the shade tree varieties listed under this subsection C4, "Acceptable Landscaping". The tree replacement schedule is as follows:
TREE REPLACEMENT SCHEDULE
Caliper Of Tree (Inches) | Number Of Replacement Trees |
30 or greater | 6 |
13 to 29 | 5 |
8 to 12 | 4 |
4 to 7 | 2 |
b. Any tree that is identified as a preserved tree and is removed or damaged shall be replaced with the following schedule:
PRESERVED TREE REPLACEMENT SCHEDULE
Caliper Of Tree (Inches) | Number Of Replacement Trees |
30 or greater | 12 |
13 to 29 | 10 |
8 to 12 | 8 |
4 to 7 | 4 |
(Ord. 10-001, 1-12-2010)