| Name of River/Creek | Max Flow velocity (m/s) | Volume (m3/s) | % Discharge of Niger River by 1961 | Average Post Kainji Dam Discharge (m3/s) | Post (Agbere/Odoni) Dredge Discharge Distribution in 1998 (m3/s) | 2012 Discharge Volumes (m3/s) |
| Forcados River at Asamabiri | 1.14 | 9200 | 57.5 | 3680.00 | 2386.94 | 10120.00 |
| Egbedi CR | 1.18 | 4700 | 29.375 | 1880.00 | 1936.72 | 8211.18 |
| Sagbama CR | 1.24 | 2200 | 13.75 | 880.00 | 570.79 | 2420.00 |
| Oguburi CR | 0.96 | 2000 | 12.5 | 800.00 | 518.90 | 2200.00 |
| Osiama CR | 1.06 | 1800 | 11.25 | 720.00 | 467.01 | 1980.00 |
| Bomadi CR | 1.95 | 2650 | 16.56 | 1060.00 | 687.54 | 2915.00 |
| Nikorogbo CR | 1.22 | 2000 | 12.5 | 800.00 | 518.90 | 2200.00 |
| Nun at Asamabiri | 1.4 | 6800 | 42.5 | 2720.00 | 2802.06 | 11880.00 |
| Kamborra CR | 1.05 | 770 | 4.8125 | 308.00 | 199.78 | 847.00 |
| Sengana CR | 0.98 | 1900 | 11.875 | 760.00 | 782.93 | 3319.41 |
| Ekole CR | 1.18 | 1480 | 9.25 | 592.00 | 609.86 | 2585.65 |
| Igeibiri CR | 1 | 480 | 3 | 192.00 | 197.79 | 838.59 |
| Bassa CR | 1.18 | 1540 | 9.625 | 616.00 | 634.58 | 2690.47 |
| Ikebiri CR | 0.83 | 340 | 2.125 | 136.00 | 88.21 | 374.00 |