| Opening height (m) | Stage-discharge equations | R2 | Remarks |
| 1 |
| 0.99 | - |
| 2 |
| 0.99 | - |
| 3 |
| 0.99 | - |
| 4 |
| 0.99 | - |
| 5 |
| 0.99 | - |
| 6 |
| 0.99 | Prediction formula |
| FULL OPEN |
| 0.99 | - |