| Manning’s n | Velocity (m/s) | Total Flow (m3/s) |
| 0.03 | 0.471 | 2357.0 |
| 0.04 | 0.354 | 1767.8 |
| 0.05 | 0.283 | 1414.2 |
| 0.06 | 0.236 | 1178.5 |
| 0.07 | 0.202 | 1010.2 |
| 0.08 | 0.177 | 883.9 |
| 0.09 | 0.157 | 785.7 |
| 0.1 | 0.141 | 707.1 |
| 0.2 | 0.071 | 353.6 |
| 0.3 | 0.047 | 235.7 |