Enhanced Fujita scale damage indicators and degrees of damage, chapter 24


Free-Standing Towers (FST)

Typical Construction:

  • Cell phone pole or tower
  • Microwave tower
Table 24. Degree of Damage (DOD) for Expected (EXP), Lower Bound (LB) and Upper Bound (UB)
DOD Damage Description EXP* LB* UB*
1 Threshold of visible damage 150 120 180
2 Collapsed cell-phone pole or tower 215 180 255
3 Collapsed micro-wave tower 220 185 255

*All wind speeds in km/h

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