Assertion: sediment | /r/HasProperty | trapped behind dam
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text: Sediment trapped behind dams reduces reservoir capacity, and in some high‐profile cases, reservoirs have already filled with sediment, not only impairing functions and/or rendering useless the dam infrastructure, but posing safety hazards as well [e.g., US Bureau of Reclamation , 2006 ; California State Coastal Conservancy , 2007 ; Wang and Kondolf , 2014 ].