Why does a SSD dam work? (UC)

The geohydrological and socio-economic factors influencing the success of sand storage dams are discussed in the following paragraphs. These are identified as the following.
1. Riverbed sediment
2. Riverbank
3. Climate
4. Topography
5. Bedrock
6. Sand dam height
7. Community involvement
8. Water quality

Of each factor, why the factor is of importance, the optimal conditions, risks, opportunities and methods to evaluate the factor are discussed.