HomeMy WebLinkAboutRS_Arborist_Reports_v1_20181127NE 6th Street and Ilwaco, Renton
November 18 2015, revised 02.01.2016, 05.03.2016, 01.29.2017, 07.01.2018
Tuscany Construction LLC
PO Box 6127
Bellevue, WA 98008
c/o Bob Wenzl
SUBJECT: PROPERTY AT NE 6th STREET and ILWACO, RENTON, WA, EXISTING
TREE EVALUATION
I conducted a site visit at the above-referenced site on November 12th to evaluate the
overall health of each tree per the City of Renton's Municipal Code Section 4-4-130.
Following are the existing significant trees found on the site along with their species,
dbh, overall health. See also Tree Retention Plan Sheet L-1.
TREE RETENTION/REPLACEMENT CALCUALTIONS
1. TOTAL TREES: 53
2. DEDUCTIONS:
A. Trees that are dangerous: 3
B. Trees in proposed public streets: 23
C. Trees in proposed private access tracts: 0
D. Trees in critical areas and buffers: 0
TOTAL EXCLUDED TREES: 26
3. Subtract line 2 from line 1: 27
4. Project is in the R-8 zone: 27 trees x 0.3 = 8
5. Quantity of trees proposed to be retained: 1
6. Subtract line 5 from line 4 for trees to be replaced: 7
(If line 6 is zero or less, no replacement trees are required)
7. Multiply line 6 by 12" for number of replacement inches: 84
8. Proposed size of trees to meet additional planting
requirement: 3 inches per tree
9. Divide line 7 by line 8 for number of replacement trees: 28 trees
NE 6th Street and Ilwaco, Renton
NE 6th Street and Ilwaco, Renton
NE 6th Street and Ilwaco, Renton
PROPOSED TREES TO BE RETAINED:
TREE #24: 20" caliper Douglas Fir, tree is in generally good health, extensive full foliage
all sides. No observed damage that might be a factor in saving this tree. Existing lower
branches should be removed as they had been previously been growing amongst
closely spaced trees that have already been removed. Those lower branches are
devoid of foliage and are unsightly. Removing those branches will not likely affect the
overall health of the tree. The proposed sidewalk should be realigned per updated
landscape plan to avoid as much root mass as possible.
TREE SPECIES:
Douglas Fir: Pseudotsuga menziesii
Western Red Cedar: Thuja plicata
Big Leaf Maple: Acer macrophyllum
Maple: Acer, cultivar unknown
Deciduous: unknown species
Prunus: Flowering Cherry
ASSUMPTIONS:
1. Only the numbered trees in this report have been examined. This report reflects the
condition of the trees at the time of the site visit. There is no warranty or guarantee,
expressed or implied that problems or deficiencies of the subject tree may not arise in
the future.
2. All trees may fail at any time, with or without obvious defects, and with or without
applied stress. A complete evaluation of the potential for this (a) tree to fail required
excavation and examination of the base of the subject tree.
Regards,
VARLEY VARLEY VARLEY
NE 6th Street and Ilwaco, Renton
Jeff Varley
Landscape Architect
12743 NE 170th Lane
Woodinville, WA 98072
phone: 425-466-9430
email: varley_jeff@hotmail.com
Greenforest Incorporated
C o n s u l t i n g A r b o r i s t
4547 South Lucile Street, Seattle, WA 98118 Tel. 206-723-0656
August 17, 2015
Robert P. Wenzl, Tuscany Construction
PO Box 6127
Bellevue, WA 98008
RE: Removal of Retained Cedar Tree at Meade Short Plat
Dear Mr. Wenzl:
I met with you and a Renton City planner earlier this week to discuss the preservation of a 10”
DBH Western red-cedar tree standing at the NE corner of the referenced site. This project
proposed to retain this young cedar tree; however, several extenuating circumstances
challenge that objective.
A large cottonwood tree was cut on the south side of the tree, and it is necessary to remove the
stump. On the north side of the tree, trenching for the electrical utility, and excavation for a
new sidewalk will reduce the grade by 4 feet well inside the tree’s dripline.
This tree has a 15’ dripline radius. And although the tree is healthy, at about 16 feet from
grade, the tree’s trunk divides at a tight angle into two co-dominant stems that are similar in
size. The presence of this double leader is a sure setup for failure in future.
Given the necessary site improvements in close proximity on both the north and south sides of
this tree, and the presence of the double leader, I recommend the tree be removed and
replaced with a defect-free tree suitable for the site.
Sincerely,
GreenForest, Inc.
By Favero Greenforest, M. S.
ISA Certified Arborist # PN -0143A
ASCA Registered Consulting Arborist® #379
ISA Tree Risk Assessment Qualified
Favero Greenforest Digitally signed by Favero Greenforest
DN: cn=Favero Greenforest, o, ou,
email=greenforestinc@mindspring.com, c=US
Date: 2017.09.29 11:10:19 -07'00'