Get Or Tree Hazard Evaluation Form - City Of Lake Oswego 2021-2025

The OR Tree Hazard Evaluation Form is an essential tool for assessing the risks associated with trees in urban environments. This guide will help you navigate the online process of completing this form accurately and efficiently.

Follow the steps to fill out the form online.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Begin by entering the site address where the tree is located in the designated field.
3. Provide the assessment date in the appropriate section.
4. Specify the property owner’s name and indicate whether the property is public or private by checking the corresponding box.
5. Fill in the arborist’s name and their ISA Certified Arborist number.
6. Have the ISA Tree Risk Assessor Qualified Arborist sign the form in the provided space.
7. Attach necessary documents such as a site plan, photographs, or a supplemental arborist report if required.
8. For each tree, fill out the tree characteristics including number, species, diameter at breast height (DBH), number of trunks, height, and crown spread.
9. Select the crown form by choosing whether it is generally symmetric or not, and indicate the crown class.
10. Complete the details on live crown ratio, age class, foliage density, vigor, annual shoot growth, twig dieback, history of failure, wound wood development, and epicormic sprouts.
11. Describe any known or suspected insect infestations or diseases.
12. Identify any special value of the tree by checking the appropriate category.
13. Assess the site conditions by indicating the character of the site, irrigation status, and any site changes.
14. Evaluate soil conditions, topography, aspect, prevailing wind direction, common weather, and wind exposure.
15. Identify primary targets potentially affected by the tree and include their distance from the tree.
16. Determine whether the target can be moved and if its use can be restricted. Assess the occupancy rate.
17. Document existing tree defects regarding the crown, trunk, and roots, noting any advanced assessments performed.
18. Assign the overall tree risk rating based on the likelihood of failure and consequences.
19. Select treatment options and indicate if a replacement tree is recommended along with its species.
20. Finally, if applicable, provide staff use only details such as risk categorization and site visit information.
21. Review the completed form, then save changes, download, print, or share as necessary.

Complete your OR Tree Hazard Evaluation Form online today for a safer urban environment.