- Located in Githunguri, Kiambu County on Ruiru River
- Completed in 1950
- Storage Capacity is 2.9 million m3
- Stores raw water with yield of 21,600 m3 /day
- Water from the dam is treated at Kabete Treatment plant
- Pipeline to Kabete is 25Km
- Contributes approximately 4% of Nairobi’s current water supply.