Severity Levels

L - One of the following conditions exists: Nonfilled crack width is less than 10 mm ( 3/8 in.), or filled crack of any width (filler in satisfactory condition).

M - One of the following conditions exists: Nonfilled crack width is greater than or equal to 10 mm (3/8  in.) and less than 75 mm (3 in.); nonfilled crack less than or equal to 75 mm (3 in.) surrounded by light secondary cracking; or, filled crack of any width surrounded by light secondary cracking.

H - One of the following conditions exists: Any crack filled or nonfilled surrounded by medium- or high-severity secondary cracking; nonfilled cracks greater than 75 mm (3 in.); or, a crack of any width where approximately 100 mm (4 in.) of pavement around the crack are severely raveled or broken.