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Urban Forest Strike Team Task Specialist Reintroduction

Urban Forest Strike Team Task Specialist Reintroduction. Urban Natural Resources Institute June 2, 2011. Dudley R. Hartel, Center Manager Eric Kuehler, Technology Transfer Specialist John Slater, Arkansas U&CF Partnership Coordinator Urban Forestry South Athens, Georgia.

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Urban Forest Strike Team Task Specialist Reintroduction

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  1. Urban Forest Strike Team Task Specialist Reintroduction Urban Natural Resources Institute June 2, 2011 Dudley R. Hartel, Center Manager Eric Kuehler, Technology Transfer Specialist John Slater, Arkansas U&CF Partnership Coordinator Urban Forestry South Athens, Georgia

  2. Urban Forest Strike Team Southern Group of State Foresters USDA FS, Region 8 Southern Research Station Urban Forestry South USDA FS, Northeastern Area

  3. UFST Webinar Series • Task Specialist – Tree Risk (June 2) • State Agencies – UFST Response Role (July 14) • U&CF Coordinators – First 72 Hours+ (August 11) • Task Specialist – Mobilization (September 8) • UFST – Safety (October 13) • UFST – Program Status (November 10) • Team Leader – Lessons Learned (December 8)

  4. Webinar Outline • Current UFST objectives • UFST risk rating criteria • Target, Size of part, Probability of failure • FEMA 325 Debris Standards • Hangers • Removals • ANSI A300 (Part 9) Tree Risk Assessment • UFST tree risk assessment objectives • Based on ANSI A300 • Context, target, and scope

  5. Current UFST Tree Risk Assessment Objectives • Provide municipality with a list of hazardous, storm-damaged trees • Prioritize the risk to help with interim management planning • Identify trees that potentially qualify for FEMA reimbursement • Spatially locate storm-damaged trees for ease of mitigation treatment • Contractors can easily find them

  6. Current UFST Tree Risk Assessment Attributes • Species (or genus) • DBH • Risk ratings (target, size, probability) • Risk management recommendation • Prune • Remove • Inspect • FEMA management recommendation • Non-FEMA • Prune • Remove

  7. UFST Risk Ratings • Target • People/property potentially affected by tree failure • Size of Part • Size of the part of the tree likely to fail • Probability of Failure • Likelihood that failure will occur • Mitigation recommendation • Based on risk ratings [Refer to WebDoc-2011-June-03]

  8. UFST Risk Ratings • Target - People/property potentially affected by tree failure • 1 – Infrequent: limited-use trails, remote areas, low-use roads • 2 – Occasional: neighbourhood roads, parks • 3 – Frequent: high-use playgrounds, parks, picnic areas • 4 – Constant: immovable objects [Refer to WebDoc-2011-June-03]

  9. UFST Risk Ratings Frequent Infrequent

  10. UFST Risk Ratings • Size of Part - Size of the part of the tree likely to fail • Reason for proposed change • To reflect the degree of the hazard • Don’t use 1 or 2 for whole tree removal Current UFST ratings • 1 – < 8” • 2 – 8-18” • 3 – 18-24” • 4 – >24” Proposed ratings • 1 – < 3” • 2 – 3-5” • 3 – 6-15” • 4 – >16” [Refer to WebDoc-2011-June-03]

  11. UFST Risk Ratings • Probability of Failure - Likelihood that failure will occur • 1 – Low: the part may take a long time to fail • 2 – Possible: could fail given the right conditions (wind, ice, snow) • 3 – Likely: it is a matter of time for failure • 4 – Imminent: the failure could occur at any moment [Refer to WebDoc-2011-June-03]

  12. UFST Risk Ratings Risk Management Based on risk ratings • No Action needed • Prune (Hazard) – remove hanging limbs • Prune (Other) – prune non-hazard limbs • Remove (Hazard) – whole tree removal due to hazards • Inspect (Immediate) – possible imminent hazard, immediately have manager inspect more thoroughly • Inspect (Routine) – have manager inspect more thoroughly [Refer to WebDoc-2011-June-03]

  13. FEMA 325 Debris Management Standards • http://www.fema.gov/pdf/government/grant/pa/demagde.pdf • Eligible debris • Generated by the disaster event • Debris located within designated disaster area • Debris located on applicant’s improved property or rights-of-way • Debris removal is the legal responsibility of the applicant [Refer to WebDoc-2011-June-02]

  14. FEMA 325 Debris Management Standards • http://www.fema.gov/pdf/government/grant/pa/demagde.pdf • Hazardous Limb Removal (Hangers) • Generated by the disaster event • Located on improved public property • or impacting it • > 2” diameter at the break • Still hanging in the tree and threatening public-use areas [Refer to WebDoc-2011-June-04]

  15. Management Standards Hazardous Limb Removal (Hangers) • Located on improved public property or impacting it (Trails)

  16. Management Standards Hazardous Limb Removal (Hangers) • > 2” diameter at the break and still hanging in the tree and threatening public-use areas

  17. FEMA 325 Debris Management Standards • http://www.fema.gov/pdf/government/grant/pa/demagde.pdf • Hazardous Trees • Must satisfy all of these • Caused by the disaster • Immediate threat to lives, public safety, or improved property • > 6” DBH • Must satisfy at least one of these • > 50% crown damage or removal • Split trunk or major branches exposing heartwood • Fallen or uprooted within public-use area • Leaning > 30o [Refer to WebDoc-2011-June-04]

  18. Management Standards Hazardous Trees 50 % Crown Loss%

  19. Management Standards Hazardous Trees Heartwood Exposed

  20. Management Standards Hazardous Trees • Fallen or uprooted within public-use area

  21. Management Standards Hazardous Trees • Leaning > 30o

  22. FEMA 325 Debris Management Standards FEMA Management Based on observations • Non-FEMA • mitigation actions do not qualify for FEMA reimbursement • Prune (>2” Limbs) • removal of broken limbs qualifies for FEMA reimbursement • Remove (>50% Loss) • removal of tree qualifies for FEMA reimbursement due to 50% crown loss • Remove (Heartwood) • removal of tree qualifies for FEMA reimbursement due to exposure of heartwood in stem or main branch(es) • Remove (>30 Lean) • removal of tree qualifies for FEMA reimbursement due to a 30o stem lean [Refer to WebDoc-2011-June-04]

  23. ANSI A300 Part 9 Tree Risk Assessment • Recently released • Allows UFST to specify our Scope of Work • Industry standards / Reduce liability • Specifications include: • Objectives • Scope of work • Levels of tree risk assessment • Type of risk analysis data • Reporting methodology [Refer to WebDoc-2011-June-01]

  24. UFST Post-disaster Rapid Tree Risk Assessment Specifications • Objectives • Quickly ID storm-damaged, hazardous trees • In designated areas • Professional recommendations to mitigate risk • Scope of work • Assess only trees • Damaged by current natural disaster • In designated boundaries • On or impacting improved property • Meet criteria for FEMA 325 • Hazardous trees • Hazardous limb removal (Hangers) • Provide tree risk ratings / mitigation recommendations [Refer to WebDoc-2011-June-01]

  25. UFST Post-disaster Rapid Tree Risk Assessment Specifications • Levels of tree risk assessment • Depends on where that tree is located • Level 1 • Public/private property • CANNOT be accessed legally/safely • No stepping on private property • Will not be able to view all sides of the tree • Poses obvious risk to public • Level 2 • Trees on public property • Can be accessed safely [Refer to WebDoc-2011-June-01]

  26. UFST Post-disaster Rapid Tree Risk Assessment Specifications • Level 1 tree risk assessment • Only on that portion of the tree easily visible from ground • Easily visible from safest and legal vantage points • ID obvious hazards per FEMA 325 • Level 2 tree risk assessment • Ground-based, visual inspection • 360o assessment • Inspect crown, trunk, flare, exposed roots, conditions • ID hazards that could impact people or property • On public property • On private property

  27. UFST Post-disaster Rapid Tree Risk Assessment Specifications • Type of risk analysis data • Tree species or genus • Diameter • Cumulative risk rating score • Target • Size of part • Probability of failure • Risk mitigation recommendation • FEMA eligibility recommendation • Spatial location

  28. What This Means for the UFST Task Specialist • Only assessing storm-damaged trees • From most recent storm • All others walk by • Change in assessment protocol • Storm-damaged tree? • Is it on public property or impacting it? • Is it on/impacts improved property? • Meets FEMA criteria for removal? • >2” limb at break • >6” DBH tree • No more non-FEMA designation • Decreased liability

  29. John Slater Arkansas U&CF Partnership Coordinator John.slater@arkansas.gov Eric Kuehler Technology Transfer Specialist ekuehler@fs.fed.us Urban Forestry South Athens, Georgia www.UFST.orgwww.UrbanForestrySouth.org

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