Pavement Distress Identifier

Interconnected crack network resembling alligator skin or chicken wire. Indicates structural failure — the pavement is flexing beyond its load capacity.

Also called: fatigue cracking, crocodile cracking, map cracking

Cracks running parallel to the pavement centerline or in wheel paths. Usually a fatigue or joint issue depending on location.

Also called: lane joint cracking, wheel path cracks, parallel cracks

Cracks running perpendicular to the pavement centerline. Usually thermal in origin — asphalt contracts in cold temperatures and cracks at its weakest point.

Also called: thermal cracking, perpendicular cracks, shrinkage cracks

Cracking along or near the pavement edge, within 1–2 feet of the outside border. Usually caused by lack of lateral support.

Also called: pavement edge failure, edge deterioration, shoulder drop-off

Permanent longitudinal depressions in the wheel paths caused by deformation in the asphalt mix or base layers under traffic loading.

Also called: wheel path depression, channelization, depressions

Ripple or hump deformation caused by horizontal forces pushing the asphalt mix. Common at intersections and bus stops where vehicles brake.

Also called: shoving, rippling, bumps

Bowl-shaped holes in the pavement surface. Develop from alligator cracking when loose pieces are dislodged by traffic. Almost always indicate base failure.

Also called: hole, pothole, pavement holes

Progressive loss of aggregate particles from the pavement surface, leaving a rough, pitted, or eroded texture. Indicates binder aging or mix design failure.

Also called: raveling, weathering, aggregate loss

Excess asphalt binder migrating to the surface, creating a shiny, sticky film. Reduces skid resistance and becomes a safety hazard when wet.

Also called: bleeding, flushing, shiny surface

Areas where water collects and does not drain off. Accelerates pavement deterioration through freeze-thaw damage and base softening.

Also called: ponding, standing water, drainage issues