Tree Retention Plan
PRAIRIE PARK VILLAGE
PROPOSED DEVELOPMENT
Tree Retention Plan
For
Yelm Prairie Development
John Thompson
PO Box 5210
Yelm, W A 98597
Presented by
SUF
Sound Urban Forestry
Kevin M. McFarland
2/14/00
tl'
'to
SUF
SOUND URBAN URBAN FORESTRY
1620 Thurston Ave. NE, Olympia, W A 98506
360.236 1028
2/14/00
Prairie Park Village
Proposed Development
Prepared for Yelm Prame Development
John Thompson
PO Box 5210
Yelm, W A 98597
Prepared by' Kevm M. McFarland, SUF
Consultmg Forester/CertIfied Arbonst
Introduction
I conducted a vegetatIve evaluatIOn of the proposed 16 acre Prame Park VIllage mIxed-
use master planned development east of downtown Yelm, Washmgton on State Route
507 The purpose of the evaluatIOn was to determme the locatIOn, condItIon of natIve and
non-natIve trees on the sIte Furthermore, I revIewed the potentIal for tree retentIOn
wIthm the development sIte.
INTRODUCTION
PURPOSE STATEMENT
John Thompson and Yelm Prame Development are solIcItmg a proposal to
Enter mto an agreement wIth Sound Urban Forestry (SUF) / Kevm M. McFarland for the
development of a Prame Park Tree RetentIOn Management Plan.
The purpose of thIS tree retentIOn plan IS to present the mtended to offer you, contractor
and the CIty of Yelm gUIdelInes and dIrectIOn as to how the proposed Prame Park Tree
RetentIOn Management Plan IS to be Implemented.
The plan wIll mclude the followmg goals
~ Conduct SIte/vegetatIOn mspectIOn
~ Note trees that are good candIdates for retentIOn
~ Present retentIOn areas to SIte developer and contracted engmeenng firm
~ Develop recommendatIOns describmg protectIve measures
2
1. Tree Inventory
Tree Inventory and Associated Plant Inventory
The sIte contaInS natIve and non-natIve trees throughout. ThIS project area IS consIdered
as non-forest type
I evaluated a total of 24 trees wIthIn the proposed development that InItIally were
consIdered for retentIOn. Due to eIther poor health or conflIct In locatIOn wIth proposed
bmldIng structures, 15 trees were not consIdered for retentIOn. Trees that are
recommended for removal are eIther wIthIn the Infrastructure footpnnt/locatIOn,
IdentIfied as a hazard or lOOSIng over 50% of theIr cntIcal root area due to unavOIdable
constructIOn actIVIty
The maJonty of the evaluated trees are located near proposed bmldIngs C,D, and E. The
overall health and condItIon of the recommended retaIned trees IS good. I found no major
Insect or dIsease problems assocIated wIth the recommended trees. I recommend 9 trees
for retentIOn. Trees recommended for retentIOn have been field marked wIth an
alumInum tag wIth the assocIated number Trees wIthout alumInum tags are to be
removed. AddItIOnal field markIng for retaIned trees should be advIsed.
Please refer to the SIte pl,!n for recommended retaIned tree locatIOn and aSSOCiated
IdentIficatIOn numbers The Inventory summary for the IdentIfied trees IS as follows
Table 1 Tree Inventory Summary
Tree # Species Recommendation
1 Japanese Black pIne Pinus thunber}!ii RetaIn
2 BIgleaf maple Acer macro]Jhyllum RetaIn
3 WeepIng Willow Salix S]J]J RetaIn
4 Douglas fir Psuedotsu}!a menziesii RetaIn
5 Black locust Robinia psuedoacacia RetaIn
6 Black locust Robinia psuedoacacia Remove (trunk rot & decay)
7 Black locust Robinia ]Jsuedoacacia RetaIn (cablIng & prunIng)
8 Douglas fir Psuedotsu~a menziesii RetaIn
9 Black locust Robinia ]Jsuedoacacia RetaIn
10 Douglas fir Psuedotsuga menziesii RetaIn
3
2. Tree Protection Plan
Recommended Protection Measures
Tree protectIOn wIll be needed for the retamed trees dunng sIte development.
CntIcal Root Zones.
The trees to be retamed wIthm the development sIte are drawn to scale and located on the
overall sIte plan, gradmg and erOSIon control plans. The cntIcal root zone (CRZ) for each
tree IS mdIcated on each before mentIOned plans. Please refer to the legend mdIcatmg the
symbol used for the protectIve zones The protectIve fencmg wIll be mstalled around
mdIvIdual or grouped trees as mdIcated on the plans. A fence detail IS attached. The
fencmg detail and narratIve shall be mcluded wIth the gradmg and erOSIOn control plans.
ProtectIve Tree BarrIer/Fencmg and Tree Mamtenance Measures.
A protectIve cham lInk fence shall be mstalled as mdIcated on the SIte plan, gradmg and
erOSIOn control plans. Fencmg shall be mstalled pnor to any gradmg for SIte
development. Please reference the ConstructIOn Notes describmg Tree ProtectIOn
Standards for tree protectIOn and mamtenance measures as attached. The ConstructIOn
Notes shall be mcluded wIth the gradmg, cleanng, and erOSIOn control plans.
Phasmg
It IS recommended that all trees not sUitable for retentIOn wIthm the development SIte be
removed dunng the cleanng for the SIte development.
DIrectIOnal Fellmg.
DIrectIOnal fellIng shall be used to lImIt damage to trees recommended for retentIOn.
After tree fellIng, pnor to cleanng and gradmg, the protectIOn fence shall be mstalled.
Tree RetentIOn RecommendatIOns
It is my opinIon that they recommended retamed trees can survIve if the proper
precautIOns are taken.
. Protectmg SoIl Prom CompactIOn
. Proper Root PrunIng
. Proper Tree PrunIng
. AdJustmg Proposed LocatIOns of Structures
. Structural DeSIgn Measures
Dunng the gradmg and cleanng process as well as the trenchmg wIthm the root zone
areas, It IS recommended that my servIces for mspectIOn be utIlIzed.
4
2. Tree Protection Plan
The retaIned trees should be Inspected after constructIOn to Insure no damage has
occurred that would cause the trees to be hazardous Selected trees should be IdentIfied
for safety prunIng If needed.
If you have any questIOns or concerns, please feel free to contact me
SIncerely,
J{&-~' ~
KevIn M. McFarland, SUF
5
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Chainlink Tree Protection Fence
Detail
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Erect and maintain readily visible protective tree fencing along the outer edge and
completely surrounding the protected areas of all protected trees or groups of trees.
Fences shall be constructed of chain link and at least four feet high, unless other
type of fencing is authorized by the Urban Forester.
Generally, the fence should be installed at least 1 foot from the base of the tree for
every 1 inch in trunk diameter. (i.e., 12" tree - fence should be placed 12 foot from
base of tree)
Source: Prince George'$ County, Mory\and: Woodlend Cotl$GNQlion Mcnuol
Tree Protection Standards
A. Placing Materials Near Trees. No person may conduct any activity within the
protected area of any tree designated to remain. including. but not limited to.
parking equipment. placing solvents. storing building material and soil deposits.
dumping concrete washout and locating bum holes.
B Attachments to Trees. During construction. no person shall attach any object to
any tree designated for protection.
C. Protective Barrier Before development. land clearing. filling or any land
alteration for which a Tree Removal Permit is required. the applicant:
Shall erect and maintain readily visible protective tree fencing along the
outer edge and completely surrounding the protected area of all protected
trees or groups of trees. Fences shall be constructed of chain .link and at
least four feet high. unless other type of fencing is authorized by the Urban
Forester
2. May be required to cover with mulch to a. depth of at least six (6) inches
or with plywood or similar material the areas adjoining the critical root
zone of a tree in order to protect roots from damage caused by heavy
equipment.
3. Shall prohibit excavation or compaction of eanh or other potentially
damaging activities wi,thin the barriers.
4 May be required to minimize root damage by excavating a two (2) foot
deep trench to cleanly sever the roots of trees to be retained.
5 Shall maintain the protective barriers in place until the Urban Forester
authorizes their removal or a final certificate of occupancy is issued.
whichever occurs first.
6. Shall ensure that any landscaping done in the protected zone subsequent
to the removal of the barriers shall be accomplished with light machinery
or hand labor.
D Grade.
The grade shall not be elevated or reduced within the critical root zone of
trees to be preserved without the Urban Forester's authorization. The
Urban Forester may allow coverage of up to one half of the area of the
tree s critical root zone with light soils (no clay) to the minimum depth
necessary to carry out grading or landscaping plans. if it will not imperil
the survival of the tree. Aeration devices may be required to ensure the
tree s survival.
2. If the gr;ide adjacent to a preserved tree is raised such that it could slough
or erode into the tree's critical root zone. it shall be permanently stabilized
to prevent suffocation of the roots.
3. The applicant shall not install an impervious surface within the critical root
zone of any tree to be retained without the authorization of the Urban
Forester The Urban Forester may require specific construction methods.
and/or use of aeration devices to ensure the tree s survival and to minimize
the potential for root induced damage to the impervious surface.
4 To the greatest extent practical. utility trenches shall be located outside of
the critical root zone of trees to be retained. The Urban Forester may
require that utilities be tunneled under the roots of trees to be retained if
the Urban Forester determines that trenching would significantly reduce the
chances of the trees survival.
5 Trees and other vegetation to be retained shall be protected from erosion
and sedimentation.
E. Directional felling. Directional felling of trees shall be used to avoid damage to
trees designated for retention.
F Additional Requirements. The Urban Forester may require additional tree
protection measures which are consistent with accepted urban forestry practices.
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