| Parameter | Description | Value |
| RQD | 40 - 50 | 40 - 45 |
| Jn | Three joint sets with random to four joint sets | 12 |
| Jr | Smooth to planar | 1 |
| Ja | Softening or low friction clay mineral coatings | 4 |
| Jw | Dry to medium inflow of pressure | 1 - 0.66 |
| SRF | Medium stress, favorable stress condition | 1 |
| Q | 0.62 - 0.83 | |
| Class No. | Very poor rock | |