| Typicality: | 0.353 |
| Saliency: | 0.243 |
| in 1975 | 6 | temporal |
| on february | 3 | temporal |
| in the year | 3 | temporal |
| bridge → be designated → a national historic landmark | 5 |
| bridge → be designated as → a national historic landmark | 5 |
| bridge → be declared → a national historic landmark | 4 |
| bridge → be named → a national historic landmark | 3 |
| negative | neutral | positive |
| 0.005 | 0.644 | 0.350 |
| Raw frequency | 17 |
| Normalized frequency | 0.243 |
| Modifier score | 0.500 |
| Perplexity | 14.574 |