|
| Name of rating | Definition |
|
| Material condition rating | Rates the general material condition of the structure, like deterioration to barrel material and crack |
| Culvert alignment rating | Accounts for irregularities longitudinally to the barrel or imbalanced settlement of barrel segments |
| Shape rating | Accounts for barrel flattening, buckling, bulging, out-of-roundness, and other signs that the shape is not equal to original design |
| Seams or joints rating | Rates the extent of backfill infiltration and water exfiltration from open joint or seepage at the joints |
| Slab rating | Slab top culverts only. Accounts for leakage, deterioration, and structural adequacy of the slab |
| Abutments rating | Slab top culverts only. Accounts for movement, material defects, and scour of the foundation of the abutments |
| Headwall rating | Accounts for scour or undermining around footings and at the inlet and outlet of the culvert |
| End structure rating | Rates structural condition of catch basins, inlets, manholes, junction chambers or other end structures |
| Channel alignment rating | Accounts for channel or flow shift caused by changes in the drainage channel |
| Channel protection rating | Rates condition of any used channel protection structure |
| Waterway blockage rating | Accounts for the amount of sediment builds up that blocks the waterway of the culvert |
| Scour rating | Accounts for existence and size of scour holes |
| Pavement rating | Rates the condition of the approach pavement |
| Guardrail rating | Accounts for sag, rotation, or misalignment of the guardrail |
| Embankment | Accounts for settlement, bulging or erosion of the approach embankment |
| General appraisal | The lowest rating of the 15 others |
|
