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7/22/2019 Park Hills Tree Survey Report
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Park Hill Neighborhood Tree Survey
Louisville, KY
July 31, 2013
Report Prepared by:
Peter Barber, Urban Forestry Program Specialist, Division of Forestry
Data Collected by:
Sean Godbold, Forester, Division of Forestry
Cody Mundy, Geologist, Division of Waste Management
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INTRODUCTION
At the request of the Kentucky Division of Waste Management, the Division of Forestry was
asked to perform an analysis of trees in the Park Hill neighborhood in Louisville, the site of theformer Black Leaf Chemical Company. A survey of trees on residential property in the
neighborhood was performed by employees of the divisions of forestry and waste management
in June and July, 2013.
This report includes the data collected from the survey, analysis of population, metrics and
specifications regarding individual tree protection and protection of groups of trees found
within the project area. Also provided are estimations of the environmental services lost from
the removal of trees surveyed and an estimation of future environmental service values
obtained from trees planted within the project area.
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Tree Population Metrics
144 Trees
17 Species
18 Trees Identified for Potential Protection
5
1
910
5
1
10
1
4
1 1 1
8
27
19
17
23
1
0
5
10
15
20
25
30
Total
Total
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Tree Diameter Distribution
American ElmBoxelder Maple
Dead
Hackberry
Tree of Heaven
0
1
2
3
4
5
6
7
5 8 12 16 18 21 24 26 30 39 48
American Elm
Ash
Black Cherry
Black Walnut
Boxelder Maple
Callery Pear
Catalpa
Crabapple
Dead
Dogwood
E. Redcedar
Goldenraintree
Hackberry
Mulberry
Siberian Elm
Silver Maple
Tree of Heaven
Yellow Poplar
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Tree Condition Rating Distribution
Tree condition ratings were based on observations of decay, missing wood, poor branch
architecture, excessive sprouting, dieback, as well as sight condition observations including
presence of compacted soils, exposed roots, imbedded fencing, vines and other conditions
known to be deleterious to tree health. A 30 percent threshold was established for each
condition class regarding decay and missing wood. Species tolerance to the above conditions
and observations on tree vigor were all taken into consideration on each tree when
determining the condition rating. Trees suitable for protection must be at least in fair
condition, and any engagement with utility wires should be minimal.
Good Fair Poor Dead
American Elm 1 4
Ash 1
Black Cherry 1 2 5 1
Black Walnut 6 3 1Boxelder Maple 5
Callery Pear 1
Catalpa 5 3 2
Crabapple 1
Dead 4
Dogwood 1
E. Redcedar 1
Goldenraintree 1
Hackberry 4 3 1
Mulberry 14 13
Siberian Elm 3 16
Silver Maple 1 12 4
Tree of Heaven 1 5 17
Yellow Poplar 1
0
2
4
6
8
1012
14
16
18
American Elm
Ash
Black Cherry
Black Walnut
Boxelder Maple
Callery Pear
Catalpa
Crabapple
Dead
Dogwood
E. Redcedar
Goldenraintree
Hackberry
Mulberry
Siberian Elm
Silver Maple
Tree of HeavenYellow Poplar
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Tree Protection Specifications
Critical Root Zones for Groups of Trees
Trees found clustered tightly together in fence rows can be protected as one area instead of
protecting individual stems. For all fencerows in Park Hill where trees are to be protected,operators should maintain a Critical Root Zone (CRZ) consisting of a five foot buffer of
undisturbed soil on either side of the fence. No soil excavation, storage or piling of soil, and no
vehicular traffic should be allowed in the Critical Root Zone (CRZ) for groups of trees.
Critical Root Radius
A Critical Root Radius (CRR) for protected trees shall be established based on the trunk
diameter, condition of tree, and species tolerance to soil removal within or near the drip line of
the tree. For reference, the CRR of trees was derived from the ANSI A300 Part 5: Management
of Trees and Shrubs during Site Planning, Site Development, and Construction along with the
corresponding Best Management Practices manual.
No soil, vehicles, equipment or debris should be stored for any period of time within a CRR. The
original soil grade of the CRR should be maintained as much as possible. No vehicular or
equipment traffic of any kind should allowed in the CRR.
See Appendix A for a list of trees to be protected and the critical root radius for each.
Barriers
A physical barrier, such as plastic fencing or silt fencing, can be used to identify the CRR of
individual trees, and can be used to demarcate CRZs for groups of trees in fencerows. Stakes
may be used as a barrier and shall be placed no more than six feet apart, and shall be markedwith high visibility paint or flagging. No equipment shall operate within the CRR or CRZ of
protected trees. No soil or other excavated material may be stored within the CRR or CRZ of
protected trees. Barriers or fencing shall be maintained at all times during soil excavation. It is
advisable for equipment operators to be informed of tree protection measures they are to
adhere to before work begins.
Root Pruning
Soil excavation will tear and rip roots. Tree response to this type of injury typically does not
produce new roots or callus growth over exposed cambial tissue, and is often associated with
poor wood compartmentalization and decay. Root injury to trees should be mitigated withproper pruning cuts on all exposed roots whose diameter is greater than 0.5 inch. The pruning
cut should, when possible, be made back to a living lateral root, or to the parent root. The cut
should be perpendicular to the contour of the root and bark should remain attached at the cut
end of the root. Sharp hand tools are the preferred method for root pruning.
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Post Excavation Care of Trees
The area inside of the CRR should be covered with a layer of hardwood mulch no more than 2 inches
deep. Homeowners should water the trees at a rate of five gallons of water per week during the
remainder of the 2013 growing season, and the entire growing season in 2014, whenever rainfall is less
than an inch for that week.
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Recommendations for Replacement Tree Planting
Replacing removed trees to mitigate the loss of environmental services should be coordinated to plant
appropriate species in appropriate places in Park Hill. This tree planting opportunity also addresses
and corrects many conflicts between overhead power lines and trees, as nuisance trees are removed
from power lines, and replaced in a more suitable location. It is advisable for local and stategovernment, in conjunction with non-government organizations, to leverage their resources to
establish a re-planting plan in the project area.
Site Preparation
Tree growth and survival are heavily influenced by soil type and structure. Every attempt should be
made to match the existing sub soil with a similar texture and type soil. It is recommended that the
first four inches of new fill soil be tilled into the existing sub soil to break up the hydrologic interface
created by two different soil types.
Species Selection
Following is a list of small, medium, and large trees suitable for planting in Park Hill. Every attempt
should be made to match the mature size of the tree to the site in which it is planted to avoid
infrastructure conflicts. Species were selected based on tolerance to soil disturbance, tolerance to
storm damage, tolerance to drought, and native to the region. Individual tree selections should use
other criteria, such as shade tolerance and visual screening effects.
SMALL TREES MEDIUM TREES LARGE TREES
Redbud Honeylocust Sycamore
Smoketree Sweetbay Magnolia White Oak
Dogwood Littleleaf Linden BlackgumArborvitae Yellowwood Baldcypress
Tree Planting
Trees should be planted following ANSI A300 specifications, and use the current ANLA standards for
plant material. Following these standards and recommendations is essential to the long term health of
replacement trees.
Tree Maintenance
Trees should be watered every week with at least one inch of water for the first two growing seasons.
This is roughly equivalent to 5 gallons of water per tree. Trees should be mulched to the drip line ofthe newly planted tree, using hardwood mulch to a depth of two inches. It is advisable to establish an
agreement with recipients of replacement trees to water their new trees. The agreement is an
opportunity to inform the new tree owners of the importance to water their tree, and an opportunity
to provide the tree owners with resources to better care for their trees. Although enforcement of this
type of agreement is unnecessary, it does instill a sense of responsibility to the recipient of the tree.
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Future Benefits of Replacement Trees
Every effort should be made to replace removed trees with better species in better locations.
Appropriate species and site selection will reduce long term maintenance costs of trees and extendtheir service life in a healthy condition. One hundred forty-four trees were surveyed and most likely
need to be removed. An iTree Streets analysis provides an estimate of future environmental benefits
of 144 trees.
EAST EAST EAST
SOUTH SOUTH SOUTH144
WEST WEST WEST
Cooling kWh
Heating therms
Energy Use kWh
CO2 lbs
O3 lbsNO lbsSO lbsSPM
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APPENDEX A
List of Individual Trees for Potential Protection and Prescribed Critical Root
Radius (CRR)Tree # Address Species DBH Condition Utilities CRR in Feet
BL4 1726 Wilson Ailanthus 48 Fair No 48
BL6 1726 Wilson Catalpa 22 Good Yes 16
BL12 1534 Wilson Catalpa 39 Good Yes 29
BL25 1760 Wilson Mulberry 14 Fair Yes 10
BL26 1760 Wilson Mulberry 18 Fair No 13
BL27 1760 Wilson Black Walnut 12 Fair No 12
BL35 1701 St. Louis American Elm 8 Good No 6
BL40 1701 St. Louis Black Walnut 16 Good No 20BL43 1703 St. Louis Hackberry 26 Good No 26
BL53 1736 St. Louis Black Walnut 30 Fair No 37
BL81 1738 Wilson Dogwood 20 Fair No 25
BL82 1740 Wilson Black Walnut 22 Good No 27
BL86 1706 Wilson Black Cherry 24 Fair No 24
BL89 1614 Wilson Yellow Poplar 25 Fair No 31
BL90 1614 Wilson Siberian Elm 30 Fair No 30
BL92 1608 Wilson Silver Maple 20 Fair No 25
BL95 1608 Wilson Mulberry 12 Fair Yes 9
BL204 1728 Wilson Catalpa 28 Good No 21
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