| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Kanał Dźwiński | 25,600,000 | Obra (river) | 6,200 | ||||||||
| Letnica (river) | Obra (river) | 20,000 | |||||||||
| Rów Grabarski | 55,300,000 | Obra (river) | 17,490 | ||||||||
| Szarka (dopływ Obry) |  | 215,700,000 | Obra (river) | 33,660 |