nairobi water sasumua dam

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 approximately 12,800 hectares.
  • Contributes approximately 12% of Nairobi’s current water supply.