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SEDIMENT TRANSPORT DURING A CONTROLLED RESERVOIR RELEASE 1
Author(s) -
Beschta Robert L.,
Jackson William L.,
Knoop Karla D.
Publication year - 1981
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1981.tb01270.x
Subject(s) - riffle , sediment , particulates , hydrology (agriculture) , bed load , sediment transport , environmental science , water discharge , organic matter , discharge , geology , chemistry , habitat , geomorphology , ecology , geotechnical engineering , drainage basin , cartography , organic chemistry , geography , biology
The transport of bedload and suspended sediments and particulate organic matter was evaluated in Huntington Creek, Utah, during a controlled release of water from Electric Lake Reservoir from August 7–10, 1979. Effects of the release on channel geometry and riffle composition also were assessed. Bedload transport rates increased from zero to 1,650 and 1,500 kg/hr at two cross sections as discharge was increased from 0.4 to 4.9 m 3 /s; transport rates then decreased erratically as discharge was held constant. Cross section measurements and sediment size analysis indicate that flows were insufficient to transport riffle sediments. Rapid increases in the transport rates of suspended sediments and particulate organic matter also occurred during rising discharge and again decayed when discharge became constant. Suspended sediment concentrations for samples obtained with an automatic pumping sampler were generally less than those found for samples obtained with a DH‐48 sampler. Biological measurements still are needed to determine if such a release can improve fisheries habitat by removing fine sediments.