Oyan River Dam
| Oyan River Dam | |
|---|---|
| Location | Ogun State, Nigeria |
| Coordinates | 7°15′30″N 3°15′20″E / 7.25833°N 3.25556°E |
| Opening date | 29 March 1983 |
| Dam and spillways | |
| Impounds | Oyan River |
| Height | 30.4 m |
| Length | 1044 m |
| Reservoir | |
| Creates | Oyan lake |
| Total capacity | 270 million m3 |
| Catchment area | 9,000 km2 |
| Surface area | 4,000 hectares |
| Power Station | |
| Turbines | 3 |
| Installed capacity | 9 MW |
| Annual generation | 0 MW |
The Oyan River Dam is in Abeokuta North local government area of Ogun State in the West of Nigeria, about 20 km north west of the state capital Abeokuta. The dam crosses the Oyan River, a tributary of the Ogun River. It is used primarily to supply raw water to Lagos and Abeokuta, but has potential for use in irrigation and power generation.