Sasumua spillway

  • Located in Njambini, Nyandarua County
  • First phase  of construction completed in 1955 and second in 1968
  • Sits on Sasumua River but receives Kibiru and Chania waters
  • Storage capacity is 15.9 million m3 
  • Design yield is 59,000m3/day 
  • Water from the dam is treated at Sasumua Dam Treatment plant
  • Serves Kabete Treatment  Works  with 60Km water pipeline
  • Combined catchment area of the Sasumua, Chania and Kiburu streams is approximately12,800 hectares. 
  • Contributes approximately 12% of Nairobi’s current water supply.