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Rethinking Water Management in African Cities

Rethinking Water Management in African Cities. Michael Webster, World Bank. Africa Urban Infrastructure Summit, Cape Town, April 22, 2013. Africa’s looming water crisis. In the next 20 years, African cities will double, and water demand will triple; whereas, water supply is shrinking

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Rethinking Water Management in African Cities

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  1. Rethinking Water Management in African Cities Michael Webster, World Bank Africa Urban Infrastructure Summit, Cape Town, April 22, 2013

  2. Africa’s looming water crisis In the next 20 years, African cities will double, and water demand will triple; whereas, water supply is shrinking • Our current approach is not working • We need to think more creatively and pragmatically about future options

  3. Research project in 31 large African cities

  4. Urban population will double in the next 20 years (3.9% per year)

  5. With some of the highest rates of urban growth in the world

  6. With still most urban population in secondary cities

  7. Urbanization brings growth… 1970 2009 • Economic footprint of urban areas • Source: World Development Report, 2009

  8. Urbanization happens early… Much of urbanization happens before countries get to $5,000 per capita Source: WDR 2009

  9. But faster urban growth has also meant faster growth of slums (1990-2001)

  10. Water demand will more than triple in 25 years – twice any other region (2005-2030) • Source: McKinsey, 2011

  11. And African countries face a dramatic decrease in water availability per capita over the next 20 years • cuc

  12. But we currently use 19th century principles of water management • Urban form created with little input from water professionals – we just plumb it up later ! • Stormwater and wastewater treated as waste • Institutional landscape not conducive for holistic approach • Regulations are inflexible - can’t deal well with resource efficiency….

  13. And business as usual is not working…

  14. We need to think about the entire water cycle as one system Irregular Energy Supply Intermittent & Irregular Supply Water Scarcity Highly Polluted Water Bodies Fast Growing Cities Low Pressure Lack of Wastewater Collection and Treatment High Levels of Leakage Poor Solid Waste Management Source: CSIRO

  15. Future water sources in Nairobi

  16. Think creatively about water sourcesE.g. Windhoek, Durban, Singapore reuse wastewater Windhoek water sources Durban reuses 10% for industry

  17. Arua (Uganda): Can decentralized solutions postpone a very large infrastructure project? Source: ian.umces.edu Provided effective watershed management in place

  18. Mbale (Uganda): A window of opportunity for adaptive solutions

  19. IUWM challenges and capacity

  20. Water operators and municipalities want integrated plans

  21. Conclusion • IUWM is still an emerging approach • Lots of application for upstream planning • Pilots are needed to demonstrate value • More work is needed on the financial and institutional issues • Lots of interest from Central and Local Governments

  22. Thank you! http://water.worldbank.org/node/84190

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