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The Pacific Northwest Tree Failure Database was started in 2017 with the goal of creating a central location for the reporting of tree failures in the Pacific Northwest. Collected data will be used to create tree species failure profiles. Data is collected using a Survey123 survey and is in-line with the data that was collected by the (now defunct) International Tree Failure Database (ITFD). Many other tree failure database around the world use the old ITFD collection sheets as a guide for collecting data. Ultimately, we would love to see other regional databases get created, existing databases use digital and mobile friendly data collecting pltforms and collect compatible data. 

Please use the button on the right to report any tree failures which you observe. please take the time to submit the report properly and thoroughly and only submit repots for trees you have observed and assessed in person. The quality of the data you enter directly effects the quality of the reports we are able to produce. If you have any questions or comments please contact us. 

The intent of the Pacific Northwest Tree Failure Database is to provide information on how trees have failed in the past. It is intended to serve as a repository for field collected data from trained tree work professionals. Tree Failure Profiles are intended to be used for background information only and should not be used as the sole source of information when conducting tree risk assessment. Every tree is unique in its site, condition, vitality, size, exposure, presence of defects, targets, and the occupancy rates of those targets. When assessing risk related to a tree, conduct a tree risk assessment based on all current industry standards. 

We would like to thank the California Tree Failure Report Program, The US Forest Service and the Pacific Northwest Chapter of the International Society of Arboriculture for their help in making the project a reality.