Excellent Development Launch Sand Dam Manual
Walking on Water: sand dams can store up to 30 million litres of water within sand - protected from evaporation, contamination and disease.
The Excellent Development Sand Dam Manual: a practical guide for implementing sand dam technology.
Sand dams are an affordable way to simultaneously address some of the world's most critical problems: desertification, water and food insecurity, climate change, migration and conflict.
During World Water Week 2012, Excellent Development launched the Sand Dam Manual: a practical guide for the siting, design and construction of sand dams.
Sand dams have the potential to transform millions of lives. They are the most cost-effective method of rainwater harvesting, and a tool that contributes to overcoming food insecurity, desertification, climate change and drought in drylands – home to 70% of the world’s poor. Yet still they remain an under-utilised technology, particularly outside of Kenya.
Our vision is to see many more people building sand dams in many more dryland regions around the world. An integral part of our approach is to promote sand dams as a contribution to achieving sustainable development goals. And to support other organisations to successfully apply sand dam technology in their own specific contexts.
Our sand dam manual introduces ‘golden rules’ of sand dam design and provides a clear and practical guide for everything you need to know about sand dams – from siting and design to construction, maintenance and operation.
But, above all, the manual demystifies sand dam technology. No specialist hydrological or engineering knowledge is assumed or required to build sand dams that work. In fact, it is our experience that water solutions should not be technology led, but must first consider the needs of the people they serve.
To date, we have enabled the construction of 848 sand dams in 10 countries, bringing safe water close to home for over 850,000 people in water scarce environments.
It is our vision that millions of the world's poorest people's have transformed their own lives with sand dams.
It is wonderful to see such a thorough description of sand dams and the various processes involved in their construction. Many will find it to be of great use.
Jon Viducich, Water Engineer MCC Mozambique (2009-12)