HomeMy WebLinkAboutTR_Jennings Tree Preservation Arborist Report- Winsper-10-25-2021JENNINGS TREE PRESERVATION, LLC
JENNITP806DZ Certified Arborist Report
James L. Jennings
ISA Certified Arborist
PN-8541A
Site Location:
Tract F
739 32nd Place South
Renton, WA 98055
Prepared For:Winspur Homeowner’s Association
Date of Inspection: September 29th, 2021 4:00pm
Tools Used:Tape measure, visual
The site location at 739 32nd Place South is a residential property on flat land,with no
critical slope and saturated soil.Conditions at the time of inspection were sunny and fair,
with a SSW prevailing wind.
Tree #1 Description:This is a 70’cottonwood (Populus fremontii)with a diameter at
breast height (DBH)of roughly 24’’and a crown spread of 15’.This tree was growing
on flat ground;no topographical slope.This cottonwood has a history of branch failures
and the entire top has failed in the past.Tree #1’s overall vigor rating is low:100%
necrotic, Tree #1 is completely dead.
Tree #1 Defect Conditions:This tree has died,and is fully exposed to wind.The
condition of the trunk and crown combined with the species profile increases this tree’s
risk of failure.There is a house is well-within striking distance of this tree,as it is
situated within 1x the height of the tree.This house is constantly occupied,and has zero
protection in the event of tree failure.The likelihood of a whole-tree failure event is
probable,and the likelihood of impact on this structure is high.A combined failure and
impact event is likely,with consequences of failure being severe towards property and
occupants.
Fig 1: Tree#1 dead top Fig.2: Tree #1 proximity to structure
Tree Risk Rating for Tree #1:High; Tree # 1 is a hazard to property and occupants.
Mitigation Options for Tree #1:Recommend removal,with no residual risk.No other
mitigation options available, as this tree has already died.
Additional Note:During my inspection,I also noticed another cottonwood approximately
75’in height with a DBH of approximately 2.5,also on Tract F,near the roadside.This
cottonwood is situated along the cul de sac,and has an unbalanced crown,with a few
large branches leaning towards the roadside.Given the state of the tree and species
profile,end-weight reduction pruning is highly recommended to reduce risk to vehicles
and passerby.
The image below is a portion of a map detailing Tract F,with the blue dot indicating Tree
# 1 and the red dot indicating the leaning cottonwood near the cul de sac:
Please note that risk does increase with time.Do not hesitate to contact me via phone or
email should you have any additional questions or to schedule an appointment for
removal.
James Jennings
ISA Certified Arborist, TRAQ Qualified
Phone: (425) 622-5403
Email:jenningstreepreservation@gmail.com
Website:www.jenningstreepreservation.com