An Assessment of the Siltation and Sediment Generation in Yusmerg Dam Located in Jammu and Kashmir

Abstract

Abstract: Although siltation is a natural process, human activity can speed it up and cause serious issues for reservoirs, lowering their usable volume for irrigation. One illustration of this issue was the Yusmerg dam's mirror water area shrinking by 48.3% over the course of 20 years. Thus, the purpose of this study was to assess the siltation and sediment production of the dam using a methodology that may be used for small earth dams used for agriculture. The amount of silt deposited in the reservoir was tracked for this purpose every month of the year. With a retention sediment percentage ranging from 53.9 to 94.5% and a high specific sediment output, the Yusmerg dam will fully silt in a maximum of 57 years. Restoring permanent preservation areas and clearing 17,500 m3 of silt from the dam's riverbed should be done as little as possible.