HomeMy WebLinkAboutEx_04_Arborist_ReportTree Report –
1. Protected Trees – Retention Required: Significant trees required to be retained pursuant to
subsection H1a of this Section, Percentage of Tree Retention Based on Zones, are considered “protected
trees.” Protected trees may contribute to each residential lot’s required minimum tree density, but any
trees that are in excess of an individual lot’s minimum tree density shall not contribute to the total number
of trees that are required to be retained for the Land Development Permit. Protected trees that do not
contribute to a lot’s required minimum tree density shall be held in perpetuity within a tree protection tract
pursuant to subsection H2 of this Section, Tree Protection Tract; protected trees on an individual lot are
the responsibility of the lot owner and may only be removed if in compliance with subsection C of this
Section, Allowed Tree Removal Activities. Significant trees shall be retained as follows:
36” Cedar – Landmark Tree Healthy Stays
24” Fir – Healthy tree stays
30” Fir – Critical Area Healthy tree stays
Critical Area Trees
7 - 14” Maple trees in critical or slope not buildable cannot assess.
30” & 12” Maple in critical areas or slope not buildable cannot assess.
Trees that have been removed unknown by whom.
36” Cedar, 14” Dec, 8” Dec, 12” Dec, 18”
Need replanting plan for the 36” Cedar, please create replanting plan using 2” caliper trees.
Critical root zone for marking the areas of do not disturb the remaining two tree that are near the
construction path. Those trees are highlighted above.
City of Renton Needs per Code.
17. Tree Retention/Land Clearing (Tree Inventory) Plan: Please provide a fully dimensioned plan
drawn by a certified arborist or a licensed landscape architect if ANY trees or vegetation are to be
removed or altered. The plan shall be based on finished grade, drawn at the same scale as the project
site plan with the northern property line at the top of the paper, and clearly show the following:
All property boundaries and adjacent streets, location and dimensions of rights- of-way, utility
lines, fire hydrants, street lighting, and easements;
Location of all areas proposed to be cleared;
Location, species, and sizes of trees on or immediately abutting the site. This requirement
applies only to trees with a caliper of at least six inches (6"), or an alder or cottonwood tree with a
caliper of at least eight inches (8"), when measured at fifty-four inches (54") above grade;
Clearly identify trees to be retained and to be removed;
Future building sites and drip lines of any trees which will overhang/ overlap a construction line.
Where the drip line of a tree overlaps an area where construction activities will occur, this shall be
indicated on the plan; and
RECEIVED
03/24/2020
amorganroth
PLANNING DIVISION
EXHIBIT 4
DocuSign Envelope ID: 44E7B13B-E61D-42E2-9010-CB07930C65F3
Show critical areas and buffers.
18. Tree Retention Worksheet: Please provide a completed City of Renton tree retention
worksheet.
19. Arborist Report: Please provide an arborist report by a certified Arborist or a licensed
Landscape Architect that correlates with the Tree Retention/ Land Clearing Plan and addresses the
following:
Identification scheme used for each tree (e.g. tree number);
Species and size of each tree (caliper measured at 54 inches above grade);
Reason(s) for any tree removal (e.g. poor health, high risk of failure due to structure, defects,
unavoidable isolation (high blow down potential), unsuitability of species, etc.) and for which no
reasonable alternative action is possible (pruning, cabling, etc.);
For trees proposed to be retained, a complete description of each tree' s health, condition, and
viability;
For trees proposed to be retained, a description of the method(s)used to determine the limits of
disturbance (e.g., critical root zone, root plate diameter, or a case- by- case basis description for
individual trees);
A description of the impact of necessary tree removal to the remaining trees, including those in
a grove or on abutting properties;
The suggested location and species of supplemental trees to be used when required. The report
shall include planting and maintenance specifications; and
An analysis of retained trees according to Priority of Tree Retention Requirements specified in
RMC 4-4-130H.1.b.
i. RC, R-1, R-4, R-6 and R-8 Zones: At least thirty percent (30%) of the significant trees shall be retained
in a residential or institutional development.
DocuSign Envelope ID: 44E7B13B-E61D-42E2-9010-CB07930C65F3