Figure B-33. High-severity joint reflection cracking.
1. Any crack, filled or nonfilled, surrounded by medium- or high-severity random
2. Nonfilled cracks over 3 inches.
3. A crack of any width where a few inches of pavement around a crack is severely
broken. (Crack is severely broken.)
How to Measure:
each crack should be recorded separately. For example, a crack that is 50 feet
long may have 10 feet of high severity; these would all be recorded separately. If
a bump occurs at the reflection crack, it is also recorded.
Name of Distress:
Lane/Shoulder Drop Off.
Lane/shoulder drop off is a difference in elevation between the pavement edge and the
shoulder. This distress is caused by shoulder erosion, shoulder settlement, or by
building up the roadway without adjusting the shoulder level.
L-The difference in elevation between the pavement edge and shoulder is 1 to 2 inches