UFA Tree Hazard Evaluation Form

• Audit Title

• Document No.

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

Tree Characterics

• Tree species

• DBH

• Number of trunks

• Height

• Spread

• Form

  Generally symmetric

  Minor asymmetry

  Major asymmetry

  Stump sprout

  Stag-headed

• Crown class

  Dominant

  Co-dominant

  Intermediate

  Suppressed

• Percent of live crown

• Age class

  Young

  Semi-mature

  Mature

  Over-mature/senescent

• Pruning history

  Select Crown cleaned Excessively thinned Topped Crown raised Pollarded Crown reduced Flush cuts Cabled/braced Multiple pruning events None

  • Crown cleaned
  • Excessively thinned
  • Topped
  • Crown raised
  • Pollarded
  • Crown reduced
  • Flush cuts
  • Cabled/braced
  • Multiple pruning events
  • None

Tree Health

• Foliage colour

  Normal

  Chlorotic

  Necrotic

• Epicormics

  Yes

  No

• Foliage density

  Normal

  Sparse

• Leaf size

  Normal

  Small

• Twig dieback

  Yes

  No

• Woundwood development

  Excellent

  Average

  Poor

  None

• Vigor class

  Excellent

  Average

  Fair

  Poor

• Growth Obstructions

  Select Stakes wires/ties signs cables curb/pavement guards none

  • Stakes
  • wires/ties
  • signs
  • cables
  • curb/pavement
  • guards
  • none

• Major pests/diseases visible

Site conditions

• Site character

  Select Residence commercial industrial park open space natural woodland/forest

  • Residence
  • commercial
  • industrial
  • park
  • open space
  • natural
  • woodland/forest

• Landscape type

  Select Parkway Raised bed Container Mound Lawn Shrub border Wind break

  • Parkway
  • Raised bed
  • Container
  • Mound
  • Lawn
  • Shrub border
  • Wind break

• Recent Site Distrubance

  Yes

  No

  N/A

• Recent site disturbance

  Construction

  Soil disturbance

  Grade change

  Line clearing

  Site clearing

• Pavement lifted

  Yes

  No

  N/A

• Driveway lifted

  Yes

  No

  N/A

• Irrigation

  None

  adequate

  inadequate

  excessive

  trunk wettled

• % dripline paved

  0%

  10-25%

  25-50%

  50-75%

  75-100%

• % dripline with fill soil

  0%

  10-25%

  25-50%

  50-75%

  75-100%

• % dripline grade lowered

  0%

  10-25%

  25-50%

  50-75%

  75-100%

• Soil Problems

  Select Drainage shallow compacted droughly saline alkaline acidic small volume disease center history of fail clay expansive slope aspect

  • Drainage
  • shallow
  • compacted
  • droughly
  • saline
  • alkaline
  • acidic
  • small volume
  • disease center
  • history of fail
  • clay
  • expansive
  • slope
  • aspect

• Obstruction

  Select Lights signage line of sight view overhead lines underground utilities traffic adjacent vegetation

  • Lights
  • signage
  • line of sight
  • view
  • overhead lines
  • underground utilities
  • traffic
  • adjacent vegetation

• Exposure to wind

  Select Single tree below canopy above canopy recently exposed windward canopy edge area prone to wind throw

  • Single tree
  • below canopy
  • above canopy
  • recently exposed
  • windward canopy edge
  • area prone to wind throw

• Prevailing wind direction

  East

  west

  south

  north

Target

• Use under tree

  Select Building Parking Traffic Pedestrian Recreation Landscape Hardscape Small feature Utility lines

  • Building
  • Parking
  • Traffic
  • Pedestrian
  • Recreation
  • Landscape
  • Hardscape
  • Small feature
  • Utility lines

• Can target be moved

  Yes

  No

  N/A

• Can use be restricted

  Yes

  No

  N/A

• Occupancy

  Occasional use

  Intermittent use

  Frequent use

  Constant use

Tree defect

• Suspect root rot

  Yes

  No

  N/A

• Mushroom/conk/bracket present

  Yes

  No

  N/A

• Exposed roots

  Severe

  moderate

  low

• Undermined

  Severe

  moderate

  low

• Roots pruned

  Yes

  No

  N/A

• Roots area affected

• Buttress wounded

  Yes

  No

  N/A

• Restricted root area

  Severe

  Moderate

  Low

• Potential for root failure

  Severe

  moderate

  low

• Lean degrees from vertical

• Lean

  Natural

  Unnatural

  Self-corrected

• Soil heaving

  Yes

  No

  N/A

• Decay in plane of lean

  Yes

  No

  N/A

• Roots broke

  Yes

  No

  N/A

• Soil cracking

  Yes

  No

  N/A

• Compounding factors

• Lean severity

  Severe

  Moderate

  Low

Hazard Rating

• Tree Part Most likely to fail

• Inspection period

  Annual

  biannual

• Failure potiential

  1-low

  2-medium

  3-high

  4-severe

• Size of part

  1-<6"

  2-6-18"

  3-18-30"

  4->30"

• Target rating

  1- occasional

  2 - intermittent

  3 - frequent use

  4 - constant use

• Hazard rating

Recommendations

• Prune

  Select Remove defective part Reduce end weight Crown clean Thin Raise canopy Reduce crown Restructure Shape

  • Remove defective part
  • Reduce end weight
  • Crown clean
  • Thin
  • Raise canopy
  • Reduce crown
  • Restructure
  • Shape

• Cable/Brace

  Yes

  No

  N/A

• Inspect further

  Root crown

  Decay

  Aerial

  Monitor

• Remove tree

  Yes

  No

  N/A

• Replace tree

  Yes

  No

  N/A

• Move target

  Yes

  No

  N/A

• Effect on adjacent trees

  None

  evaluate

• Notification

  Owner

  manager

  governing agency

• Date of notification

  Date

• Comments