Chris Rippey
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

Contact Information

3612 S 242nd St
Kent, Washington 98032

Areas Served

Southern Oregon, Central Washington, Eastern Washington, Seattle Metro, Western Washington

Oregon Counties Served:

  • Coos
  • Curry
  • Douglas
  • Jackson
  • Josephine
  • Klamath

Washington Counties Served:

  • Adams
  • Asotin
  • Benton
  • Chelan
  • Clallam
  • Clark
  • Columbia
  • Cowlitz
  • Douglas
  • Ferry
  • Franklin
  • Garfield
  • Grant
  • Grays Harbor
  • Island
  • Jefferson
  • King
  • Kitsap
  • Kittitas
  • Klickitat
  • Lewis
  • Lincoln
  • Mason
  • Okanogan
  • Pacific
  • Pend Oreille
  • Pierce
  • San Juan
  • Skagit
  • Skamania
  • Snohomish
  • Spokane
  • Stevens
  • Thurston
  • Wahkiakum
  • Walla Walla
  • Whatcom
  • Whitman
  • Yakima


  • Appraisals
  • Cabling/Bracing
  • Clearing/Thinning
  • Construction Management
  • Expert Witness
  • Habitat Revival
  • Hazard/Risk Assessment
  • Insect/Pest/Disease Diagnosis
  • Landscape Planning/Management
  • Native Restoration
  • Permit Assistance
  • Planting/Installation
  • Preservation
  • Protection
  • Pruning
  • Report Writing
  • Resistograph Testing
  • Restoration/Renovation
  • Slope Issues
  • Soil/Site Analysis
  • Tree Selection
  • Urban Forest Management

Additional Specializations

Maintaining veteran trees and work related to municipal code

Articles by Chris Rippey

Veteran Black Cottonwood Failure at Lake Washington

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.

Large Douglas Fir Failure in Lowland Puget Sound

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.