TRCS Portal 2025

Inspection Guidelines

OverviewAC Distress MeasurementPCC Distress Measurement
BlowupCorner BreakCracks - Longitudinal, Transverse, and DiagonalDurability - D CrackingJoint Seal DamagePatching - Small (Less Than 5 Sq Ft - 0.5 Sq M)Patching - Large (Over 5 Sq Ft - 0.5 Sq M)and Utility CutPopoutsPumpingScalingSettlement or FaultingShattered Slab - Intersecting CracksShrinkage CracksSpalling - Trans. And Long. JointsSpalling - CornerAlkali Silica Reaction (ASR)

Spalling - Corner

Corner spalling is the raveling or breakdown of the slab within approximately 2 feet (600 millimeters) of the corner. A corner spall differs from the corner break in that the spall angles downward to intersect the joint, while a break extends vertically through the slab.

How to Count

If one or more corner spalls having the same severity level are located in a slab, the slab is counted as one slab with corner spalling. If more than one severity level occurs, it is counted as one slab having the higher severity level.

SeverityDistress ExampleDescription
Low
One of the following conditions exists: (1) spall is broken into one or two pieces defined by low-severity cracks (little or no FOD potential), (2) spall is defined by one medium-severity crack (little or no FOD potential).
Medium
One of the following conditions exists: (1) spall is broken into two or more pieces defined by medium- severity crack(s), and a few small fragments may be absent or loose; (2) spall is defined by one severe, fragmented crack that may be accompanied by a few hairline cracks; or (3) spall has deteriorated to the point where loose material is causing some FOD potential.
High
One of the following conditions exists: (1) spall is broken into two or more pieces defined by high- severity fragmented crack(s), with loose or absent fragments; (2) pieces of the spall have been displaced to the extent that a tire damage hazard exists; or (3) spall has deteriorated to the point where loose material is causing high FOD potential.