![]() ![]() Before the completion of the 18 federal reservoirs in the Kansas River watershed, a much larger quantity of sand was naturally transported from tributaries to the main river, providing material to fill the holes made by sand dredges. When dredging companies take sand and gravel out of the riverbed, the river fills the resulting hole with sand and silt removed from upstream. The Kaw is vulnerable to degradation from dredging because it is a single, connected system that naturally works to maintain balance. Download Regulatory Report River Bed Degradation In recent years, however, dredging activities have been documented through careful studies to have caused significant damage to the Kaw’s riverbed, to habitat in and along the river, and to water quality, resulting in the Corps closing stretches of the river to further dredging. Kansans have benefited from good quality roads and buildings thanks to the Kaw. Sand from the Kaw is highly sought after because of its size and shape, which make it particularly valuable to the concrete industry. The Kansas River has been commercially mined (dredged) for sand and gravel since the early 1900’s.
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