Tree Hazard Evaluation Form

• Audit Title

• Document No.

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

• Date of last inspection

  Date

Tree Characteristics

• Tree number

  1

  2

  3

  4

  5

• 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

• Age class

  Young

  Semi-mature

  Mature

  Over-mature/senescent

• Live crown ration

• 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

• Major pests/diseases visible

Site conditions

• Site character

  Private residence

  School

  Commercial/Industrial

• Landscape type

  Select Raised bed Container Mound Lawn Shrub border Wind break

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

• Recent site disturbance

  Select Yes No Construction Soil disturbance Grade change Line clearing Site clearing

  • Yes
  • No
  • Construction
  • Soil disturbance
  • Grade change
  • Line clearing
  • Site clearing

• Pavement lifted

  Yes

  No

  N/A

• Driveway lifted

  Yes

  No

  N/A

• % 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%

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

• Exposed roots

  Severe

  Moderate

  Low

• Mushroom/conk/bracket present

  Yes

  No

  N/A

• 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

• Lean severity

  Severe

  Moderate

  Low

• Compounding factors

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

• Inspect further

  Root crown

  Decay

  Aerial

  Monitor

• Comments