Research Article
Nonparametric Binary Recursive Partitioning for Deterioration Prediction of Infrastructure Elements
Table 1
FHWA’s concrete bridge deck condition rating system.
| Condition Rating | Condition Indicators (% Deck Area) | Spall | Delamination | Electrical Potentials | Chloride Content #/CY |
| 9 | None | None | 0 | 0 | 8 | None | None | None > 0.35 | None > 1.0 | 7 | None | < 2% | 45% 0.35 | None > 2.0 | 6 |
< 2% spall or sum of all deteriorated or contaminated deck concrete < 20% | | 5 |
< 5% spall or sum of all deteriorated or contaminated deck concrete 20 to 40% | | 4 |
> 5% spall or sum of all deteriorated or contaminated deck concrete 40 to 60% | | 3 |
> 5% spall or sum of all deteriorated or contaminated deck concrete > 60% | | 2 |
Deck structural capacity grossly inadequate | | | 1 |
Deck repairable by replacement only | | |
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