Status of Dam on Mathare River Report to stakeholders presented on 21 st October 2015 in the...
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Transcript of Status of Dam on Mathare River Report to stakeholders presented on 21 st October 2015 in the...
Status of Dam on Mathare River
Report to stakeholders presented on 21st October 2015 in the Principal’s Boardroom, CAVS
Prof. David N. MungaiWangari Maathai Institute for Peace and Environmental Studies
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Our Vision
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To be a universal centre of excellence in training, research, outreach and consultancy services in agriculture, veterinary, biomedical, environmental and natural resource sciences in order to realize sustainable and secure livelihoods
Supplies water to the College for: Crop and livestock production Experiments, field trials and seed
multiplication for National & International Research Institutes – KARLO, ILRI, CIP, ICRAF
Fish farming Biogas project
Importance of the Dam
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Water pump breakdown in April 2013 due to river obstruction. Effects Financial loses of about KES 10 million / yr ICRISAT has lost 3 tons of seed due to lack of
irrigation water CIP could not conduct experiments No research by staff & students No field trials
First signs of effects of development
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Fish ponds are dry – no teaching and no fish production
The biogas plant is not operating optimally due to inadequate water for mixing
First signs of effects of development
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If we are not careful?
From this……. To this…….
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Weir and gate across Mathare River
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Effects of flooding on water pump
Damaged water pump New pump house
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Construction on steep, unstable valley sides – detached gabions and falling
trees
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Fallen tree after heavy rains in May 2015
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The two sides compared…..
College side – conserved valley side and riparian zone
Neighbors side – riparian vegetation destroyed, siltation of dam
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The two sides compared…..
College side – indigenous spp. conservation
Neighbors side – soil creep into the dam
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Fish ponds without water and fish
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Biogas project affected due to inadequate water
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NEMA, WARMA and Ministry of Environment (Urban Rivers Restoration Department) have visited the site
Steps taken
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Our vision of a well protected and conserved wetland
Note cover and distance from water lineNote macorphytes on water line, infiltration trenches to capture runoff, and staff gauge
to measure water levels
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Vision: A world-class university committed to
scholarly excellence
The University of Nairobi
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