Transverse Cracking

Description

Cracks that are predominantly perpendicular to the pavement centerline. This cracking is expected in a properly functioning CRCP. All transverse cracks that intersect an imaginary longitudinal line at midlane, and propagate from the pavement edges, shall be counted as individual cracks, as illustrated below. Cracks that do not cross midlane are not counted.

Severity Levels

Low
Cracks that are not spalled or with spalling along ≤ 10 percent of the crack
length.

Moderate
Cracks with spalling along > 10 percent and ≤ 50 percent of the crack length.

High
Cracks with spalling along > 50 percent of the crack length.

How to Measure

Record separately the number and length in meters of transverse cracking at each severity level. The sum of all the individual crack lengths shall be recorded. Then record the total number of transverse cracks within the survey section. Note: Cracks that do not cross mid-lane, although not counted, should be drawn on the map sheets.