Flood recovery and siltation
The lower Tana basin floods often and severely, so flood defences have to last well beyond a single construction cycle.
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Challenge notes
Kenya eats over 650,000 metric tonnes of rice a year but grows under 150,000. The gap costs KES 55 billion a year in foreign exchange. Closing it means solving flood recovery, invasive pests and energy costs at commercial scale.
3 stories
01The lower Tana basin floods often and severely, so flood defences have to last well beyond a single construction cycle.
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02The Golden Apple Snail and Quelea birds are well-documented threats to rice in the Delta.
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03Under the old model, diesel pumping and fuel-hungry machinery pushed up costs and caused maintenance delays.
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Flood embankments, integrated pest management and an electric fleet on gravity-fed water turn these risks into manageable operating conditions. See how the pieces fit together.