15 March 2001
DISTRESS 66, PATCHING, SMALL (LESS THAN 5 SQUARE FEET
(1.5 SQUARE METERS))
8.1. Description. A patch is an area where the original pavement has been removed and
replaced by a filler material. For condition evaluation, patching is divided into two types: small
(less than 5 square feet (1.5 square meters)) and large (over 5 square feet (1.5 square meters)).
Large patches are described in Chapter 9. Deduct curves for small patching are shown in
8.2. Severity Levels.
8.2.1. L. Patch is functioning well, with little or no deterioration (Figures 8.2. and 8.3.).
8.2.2. M. Patch has deteriorated, and/or moderate spalling can be seen around the edges.
Patch material can be dislodged, with considerable effort (minor FOD potential) (Figures 8.4. and
8.2.3. H. Patch has deteriorated, either by spalling around the patch or cracking within the
patch, to a state which warrants replacement (Figure 8.6.).
8.3. How to Measure. If one or more small patches having the same severity level are located
in a slab, it is counted as one slab containing that distress. If more than one severity level occurs,
it is counted as one slab with the higher severity level being recorded. If a crack is repaired by a
narrow patch (e.g., 4 to 10 inches (102 to 254 millimeters) wide), only the crack and not the patch
should be recorded at the appropriate severity level. If the original distress of a patch is more
severe than the patch itself, the original distress type should be recorded.