Patch Deterioration

Description

Portion of pavement surface, greater than 0.1 m2, that has been removed and replaced or additional material applied to the pavement after original construction.

Severity Levels

Low
Patch has, at most, low severity distress of any type including rutting < 6 mm; pumping is not evident.

Moderate
Patch has moderate severity distress of any type or rutting from 6 mm to 12
mm; pumping is not evident.

High
Patch has high severity distress of any type including rutting > 12 mm, or the patch has additional different patch material within it; pumping may be evident.

How to Measure

Record number of patches and square meters of affected surface area at each severity level.

Note: Any distress in the boundary of the patch is included in rating the patch. Rutting (settlement) may be at the perimeter or interior of the patch.