Nairobi Dam

Nairobi Dam

Coordinates: 1°19′3″S 36°48′22″E / 1.3175°S 36.80611°E / -1.3175; 36.80611

The Nairobi Dam is an embankment dam on the Nairobi River in Nairobi, Kenya.[1]

Contents

Background

The Dam constructed in 1953[2] holds back a reservoir with storage capacity of 98,000 m3 (79 acre·ft) and surface area of 350,000 m2 (86 acres). It is a shallow lake with an average depth on only 2.76 m (9.1 ft) [1]

Inflow is from the Nairobi River, from rainfall, and waste water from the unsewered Kibera settlement.[1] Outflow through evaporation and over the spillway into the Ngongo River.[1]

The Dam is heavily silted and areas have been reclaimed for agrigulture by dumping solid waste, the water hyacinth plant is very common and has clogged the water preventing sailing and fishing.[1]

Geology

The sediment beneath the Dam consists of Middle and Upper Kerichwa Valley Tuffs.[1]

Regeneration projects

Prime Minister Raila Odinga announced plans to regenerate the Dam and when he met with the Nairobi Dam Trust Initiative on 14 September 2011. [2]

He asked that it be made part of the Nairobi River Basin Project funded by the United Nations Environment Program [3]with the tasks of removing the water hyacinth and solid waste to restore the aquatic ecosystem.[2] Also associated encroachment would need the settlements to be pulled down (Kibera is the second biggest slum in Africa, with 700,000 inhabitants)[4] with an estimated cost of 700 million Kenyan Shilling (7.3 million USD)[2]

References

  1. ^ a b c d e f "Nairobi Dam". http://www.unep.org/roa/Nairobi_River_Basin/Downloads/Assessments/PollutionChapters/PollutionMonitoringNETWAS_Chap5.pdf. 
  2. ^ a b c d "Govt to rehabilitate Nairobi Dam". 14 September 2011. http://www.kbc.co.ke/news.asp?nid=72443. 
  3. ^ "BBC: Nairobi River Basin initiative". February 2003. http://www.bbc.co.uk/worldservice/specials/1454_urbansolutions/page2.shtml. 
  4. ^ "BBC:bringing water to Nairobi's Kibera slum". February 2003. http://www.bbc.co.uk/worldservice/specials/1454_urbansolutions/page3.shtml. 

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