The following is from the American Society of Civil Engineers (ASCE)MINOR DAMAGE

MINOR DAMAGE

  • Protective coating or wrap damaged, and loss of thickness up to 15% of nominal at any location;
  • Less than 50% of perimeter or circumference affected by corrosion at any elevation or cross-section; or
  • Loss of thickness up to 15% of nominal at any location.

MODERATE DAMAGE

  • Protective coating or wrap damaged, and loss of thickness 15% to 30% of nominal at any location;
  • More than 50% of perimeter or circumference affected by corrosion at any elevation or cross-section; or
  • Loss of thickness 15% to 30% of nominal at any location.

 

 

 

MAJOR DAMAGE

  • Protective coating or wrap damaged, and loss of thickness 30% to 50% of nominal at any location;
  • Partial loss of flange edges or visible reduction of wall thickness on pipe piles;
  • Loss of nominal thickness 30% to 50% of nominal at any location.

SEVERE DAMAGE

  • Protective coating or wrap damaged, and loss of wall thickness 50% of nominal at any location;
  • Structural bends or buckling, breakage, or displacement at supports;
  • Loose or lost connections; or
  • Loss of wall thickness exceeding 50% of nominal at any location.