Case | A | B | C | D | E | F |
Breach width of bottom(m) | 700 | 700 | 700 | 700 | 200 | 200 |
Breaching time (hours) | 4 | 4 | 5 | 5 | 2 | 2 |
Roughness of the river channel Manning’s (n) | 0.33 | 0.050 | 0.033 | 0.050 | 0.033 | 0.5 |