Third generation Arborist with over 20 years of experience.
I am the founder of Rippey Arboriculture, LLC and the Pacific North-West Tree Failure Database. I work full-time at the City of Seattle Parks department and worked for 14 years as an Arborist at Stanford University.
ISA Certified Arborist #WE-7672AUTM
Southern Oregon, Central Washington, Eastern Washington, Seattle Metro, Western Washington
Oregon Counties Served:
Washington Counties Served:
- Grays Harbor
- Pend Oreille
- San Juan
- Walla Walla
- Construction Management
- Expert Witness
- Habitat Revival
- Hazard/Risk Assessment
- Insect/Pest/Disease Diagnosis
- Landscape Planning/Management
- Native Restoration
- Permit Assistance
- Report Writing
- Resistograph Testing
- Slope Issues
- Soil/Site Analysis
- Tree Selection
- Urban Forest Management
Maintaining veteran trees and work related to municipal code
In February and March of 2020, samples taken for DNA Sequencing from a declining Sycamore maple (Acer pseudoplatanus) and red maple (Acer rubrum) in Seattle, Washington came back positive for Cryptostroma corticale, also known as Sooty-Bark Disease. This is the first time this disease has been found in red maple. Sooty Bark Disease attacks and … read more of Sooty-Bark Disease of Maple.
On the night of September 7th, 2019, over 1250 lightning strikes were recorded over Western Washington in a span of three and a half hours. Up until this point, I had never responded to a lightning struck tree. This storm presented me with the opportunity to assess four sites with lightning struck trees and two … read more of Do Lightning Strikes Contribute to Tree Failure?.
Slightly before 5:45 pm on December 29th, 2018, the largest single-trunked black cottonwood tree (Populus trichocarpa) in Seattle fell to the ground. This tree was listed in the Arthur Lee Jacobsen book, “Trees of Seattle” as having a 93-inch diameter and being 140 feet tall. This tree was loved by both the local community and … read more of Veteran Black Cottonwood Failure at Lake Washington.
All images in this article can be clicked to enlarge. I spent all of January 5th, 2019 in north Seattle pulling a tree out of a house. I arrived on-scene that morning at 4am and worked till 7:30pm that night. I got home to my house in Kent, Washington and passed out only to be … read more of Intense Winds January 6 2019 Created Many Tree Failures.
On the morning of June 27, 2018, a woman got off a bus and walked over to sit on a nearby bench under a huge tree. She did not often sit on this bench because homeless people were usually encamped around it. But for whatever reason they were not there today, and she decided to … read more of Beloved Bigleaf Maple Failure in City Park.
The following is the first of many articles which I will be writing for this newsletter. These will be stories of tree failures and will include the possible contributing factors involved in these failures. My articles will include data from the Pacific North-West Tree Failure Database (PNWTFD). This article and the information from the PNWTFD … read more of Large Douglas Fir Failure in Lowland Puget Sound.