Pavement Inspection

Corner Spalling

Corner spalling is the raveling or breakdown of the slab within approximately 2 ft (0.6 m) of the corner. A corner spall differs from a corner break in that the spall usually angles downward to intersect the joint, while a break extends vertically through the slab.

Severity Distress Example Description
Low Close-up of a low-severity corner spall. The corner spall is fairly small, and in one piece. One of the following conditions exists: (1) spall is broken into one or two pieces defined by low-severity cracks (little or no FOD potential); (2) spall is defined by one medium-severity crack (little or no FOD potential).
Medium Close-up of a medium-severity corner spall. The corner spall is larger than the shown low-severity spall, and is divided into four pieces. One of the following conditions exists: (1) spall is broken into two or more pieces defined by medium-severity cracks, and a few small fragments may be absent or loose; (2) spall is defined by one severe fragmented crack that may be accompanied by a few hairline cracks; (3) spall has deteriorated to the point where loose material is causing some FOD potential.
High Close-up of a high-severity corner spall. The corner spall is highly deteriorated and shows signs of loose material. One of the following conditions exists: (1) spall is broken into two or more pieces defined by high-severity fragmented cracks with loose or absent fragments; (2) pieces of the spall have been displaced to the extent that a tire damage hazard exists; (3) spall has deteriorated to the point where loose material is causing high FOD potential.