| Parameter | Value | Rating |
| UCS (MPa) | 40 - 60 | 4 - 6 |
| RQD | 25 - 50 | 8 |
| Spacing (MM) | 60 - 200 | 8 - 10 |
| Condition of discontinuities | - | 10 |
| Groundwater | Dam | 7 |
| RMR | 37 - 41 | |
| Class No. | Dam | |
| Cohesion of the rock mass (KPa) | 442 | |
| Friction angle of the rock mass (deg) | 15 - 25 | |