All rivers contain sediments: a river, in effect, can be considered a body of flowing sediments as much as one of flowing water. When a river is stilled behind a dam, the sediments it contains sink to the bottom of the reservoir. The proportion of a river’s total sediment load captured by a dam – known as its "trap efficiency" – approaches 100 per cent for many projects, especially those with large reservoirs. As the sediments accumulate in the reservoir, so the dam gradually loses its ability to store water for the purposes for which it was built. Every reservoir loses storage to sedimentation although the rate at which this happens varies widely. Despite more than six decades of research, sedimentation is still probably the most serious technical problem faced by the dam industry.
Those sediments are mineral-rich and can be used as topsoil after dried. Even it can be sold if it's packaged. Result is cleaner and womby dam plus reduced cleaning cost maybe even some earnings. What i need is some boats and special equipments to take sediments from dam. I appreciate if you support my bussiness.