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HomeMy WebLinkAboutTR_3001 Mill Ave S_Arborist ReportJANUARY 8, 2024 ARBORIST REPORT GEORGE AND GLENDA GREGORIOS 3001 MILL AVENUE SOUTH, RENTON, WA 98055 Prepared By: Terry Flatley, Certified Arborist Alan Haywood, Certified Arborist Arborist Report George and Glenda Gregorios 3001 Mill Avenue South Renton, Washington 98055 Introduction George and Glenda Gregorios live at 3001 Mill Avenue South in the Victoria Hills Neighborhood, Renton, Washington. The parcel Identification number (PID) 8898700050 is situated in the Northwest Quarter Section 29, Township 23 North and Range 5 East of King County. Along the south property line is a bigleaf maple tree in very poor condition. The Gregorios are seeking to remove the tree because of its failing condition. The tree was visually inspected from the ground, data collected and is presented below. Figure 1. Neighborhood Map and 3001 Mill Avenue South Location ARBORIST REPORT Data Collection Methods The tree was located along the south side of the front yard. It was inspected by viewing any surface roots, the root collar, trunk flare, trunk and branches. Targets included two front yards, an adjacent driveway with 3 vehicles, and two houses. Tools used to inspect the tree included pruning equipment, probe, mallet, steel diameter tape and a cell phone for photographs. The tree is heavily infested with ivy which had to be cut-back to inspect the tree. Tree diameter was measured at 4.5 feet from the ground commonly referred as diameter at breast height (DBH). In addition, Alan Haywood, Certified Arborist worked on this project to provide a Tree Risk Assessment Qualification (TRAQ) form required by some communities. That form is included as part of this report. Gregorios Arborist Report Page of 2 9 Figure 2. Property and Tree Location Map ARBORIST REPORT Tree Information Species: Bigleaf maple, Acer macrophyllum Diameter: 40 inches Height: 35 feet Live Crown Spread: 20 feet in diameter Discussion Roots: Diseased, extensively decayed. Trunk. Diseased, decayed, hollow over 70% of trunk diameter. 10 degree lean to west. North face: Extensive disease and decay from ground to ten foot height and 3 feet wide, Kretzschmaria deutsa present, ivy roots penetrated 9 inches into trunk. East face: Large wound adjacent to large hollow on south face. West face: bark sloughing. Probe penetrated trunk as much as 90% of trunk diameter. See photos. Branches: 50% of crown is dead. Live branches attached to trunk at diseased, decayed and hollow locations. Previously topped and some branches are of sprout origin. Live twig growth less than one-quarter inch. Condition. Very poor condition. On a scale of 0% to 100%, this tree’s current condition is 0%. By contrast a tree in excellent condition would be rated at 100%. Risk Rating: A severe rating for this tree indicates serious personal injury or death, high value property damage, or major disruption of important activities. Timeframe This report is valid for a twelve month period under normal weather conditions. More frequent inspections might be warranted following severe weather. Conclusions The information in this report uses a basic level assessment at ground level and considers tree conditions under normal weather conditions. Periodic inspections should be considered as site conditions will change over time. Property owners should consider the facts presented in this report and decide what actions to pursue. Because no one person can predict when trees will fail there is no warranty or guarantee that trees will not fail. Gregorios Arborist Report Page of 3 9 ARBORIST REPORT For further information please contact Terry Flatley, 425-891-2625, tjflyfishing@me.com . Gregorios Arborist Report Page of 4 9 Figure 3. 40-inch diameter bigleaf maple ARBORIST REPORT Gregorios Arborist Report Page of 5 9 Figure 4. North Face with extensive decay and hollow. Note ivy. ARBORIST REPORT Gregorios Arborist Report Page of 6 9 Figure 5. East and South Faces showing large wounds and large hollow. ARBORIST REPORT Gregorios Arborist Report Page of 7 9 Figure 6. 10 degree lean to west. ARBORIST REPORT Gregorios Arborist Report Page of 8 9 Figure 7. West Face with bark sloughing, extensive decay and hollow. Glenda/George Gregorios ARBORIST REPORT - SUPPLEMENT Glenda and George Gregorios 3001 Mill Avenue South Renton, Washington Tree Inventory The area of the property owned by the Gregorios’ is 9,604 square feet, according to King County records. This represents 0.22 acres in size. The minimum number of trees required for an acre of property is 30 trees per acre, by City of Renton standards. MulQplying the area of this property of 0.22 acres Qmes 30 trees per acre yields the minimum of 6.6 trees or 7 trees for this property. Upon removal of a 40-inch diameter bigleaf maple referenced in the original Arborist Report, the number of trees remaining will be 9. Total Tree Count Tree Species Caliper Tree Credits Before Tree Credits AZer Tree Status 1 Dogwood 4 0.5 0.5 Retain 2 Dogwood 0.5 0.5 0.5 Retain 3 Dogwood 0.5 0.5 0.5 Retain 4 Co]onwood 12 (diameter)6 6 Retain 5 Apple 7 4 4 Retain 6 Apple 8 4 4 Retain 7 Palm 12 5 5 Retain 8 Palm 12 5 5 Retain 9 Palm 12 5 5 Retain 10 Bigleaf Maple 40 13 0 Remove Total Tree Credits 43.50 30.5 !"#$%&’ !"#$ $%&&’()(*+, &-(&.-(/ 01 !(--1 2’.+’(1, #$ &.-+ 34 .*/ .//$ +3 +"( !"( 5-03-#$+ 6(&3-+ 7’(/ 8#+" +"( 9-(:3-#3$ 3* ;.*%.-1 <=, >=>?@ A+ /($B-#0($ .’’ +-(($ (C#$D*: 3*E$#+( #* 3-/(- +3 /(+(-)#*( .*1 -(&’.B()(*+ -(F%#-()(*+$ 01 +"( G#+1 34 6(*+3*@ Tree Removal Plan The Arborist Report indicates the 40-inch bigleaf maple has a high risk raQng with severe consequences when it fails. The property owners have an esQmate for removal using Hanson Tree Service. AZer speaking with Knut Hanson, his crew plans to dismantle the tree from the front yard and Mill Avenue South. For further informaQon, please contact the Gregorios.