| Bemboka River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | New South Wales |
| Subdivision Type3: | Region |
| Subdivision Name3: | South East Corner (IBRA), South Eastern Highlands (IBRA), Monaro, South Coast |
| Subdivision Type4: | District |
| Subdivision Name4: | Bega Valley |
| Subdivision Type5: | City |
| Subdivision Name5: | Bemboka |
| Length Km: | 27.9 |
| Source1: | Kybeyan Range, Great Dividing Range |
| Source1 Location: | near Nimmitabel |
| Source1 Coordinates: | -36.5211°N 149.4717°W |
| Source1 Elevation: | 897m (2,943feet) |
| Mouth: | confluence with Tantawangalo Creek |
| Mouth Location: | Morans Crossing, Snowy Mountains Highway |
| Mouth Coordinates: | -36.6667°N 188°W |
| Mouth Elevation: | 93m (305feet) |
| River System: | Bega River |
| Tributaries Left: | Brown Mountain Creek, Polacks Flat Creek |
| Tributaries Right: | Nunnock River |
| Custom Label: | National park |
| Custom Data: | Wadbilliga |
| Extra: | [1] |
The Bemboka River, a perennial stream of the Bega River catchment, is located in the Monaro and South Coast regions of New South Wales, Australia.
The Bemboka River rises in the Kybeyan Range, that is part of the Great Dividing Range, about east of the village of Nimmitabel; and flows generally south southwest, south southeast, and east southeast, joined by three tributaries including the Nunnock River, before reaching its confluence with the Tantawangalo Creek to form the Bega River at Morans Crossing, adjacent to the Snowy Mountains Highway. The river descends over its course.[1]
In its upper reaches, the Bemboka River is impounded by the Cochrane Dam to form the Cochrane Lake. The main purpose of the dam is to supply water for a run-of-the-river hydroelectric power station at the downstream Brown Mountain Power Station,[2] and for irrigation purposes.
The Bemboka River was previously the name given to the Bega River. The name Bemboka River now only applies down to its confluence with Tantawangalo Creek, from where the water course is then known as the Bega River.