2018 IRI (0)
| IRI_2018 |
| Good: < 95 in/mi |
| Fair: 95 to 170 in/mi |
| Poor: > 170 in/mi |
2017 IRI (1)
| IRI2017 |
| 22 - 94 |
| 95 - 170 |
| 171 - 600 |
2015 IRI (2)
| IRI2015 |
| 22 - 94 |
| 95 - 170 |
| 171 - 600 |
2014 IRI (3)
| IRI2014 |
| 22 - 94 |
| 95 - 170 |
| 171 - 600 |
2012 IRI (4)
| IRI_2012 |
| 22 - 94 |
| 95 - 170 |
| 171 - 600 |
|