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Scope/Content: Abstract: When large dams are removed, one of the biggest concerns is the associated impacts from the erosion and transport of reservoir sediment in the downstream river channel. Predicting the sediment impacts is critical to ensure that the dam is removed in a safe, controlled manner and the downstream mitigation or protective measures can be appropriately designed. However, because of the limited data and inadequate models, the quantification of sediment impacts is subject to great uncertainty. This paper presents an overview of current methods used to predict the volume and rate of erosion of sediment in the reservoir region and the resulting downstream impacts. A simple model of downstream aggradation is proposed that may simplify analyses of deposition of coarse material downstream. The potential application and limitations of each method are described.