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Lookup NU author(s): Dr James Bathurst
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Studies of the bedload transport regime of the Roaring River, Colorado, in 1984-88, following a dambreak flood in 1982, showed that bedload transport rates were an order of magnitude higher than under pre-flood conditions. A gorge eroded by the flood in glacial moraine acted as a major sediment supply source. Measurements in early June 1994 showed a continued potential for high sediment supply from the gorge and a bedload transport regime similar to that of 1984-88. A major snowmelt flood in mid-June flushed sediment supply from the gorge and measurements in July showed a corresponding reduction in bedload transport. However, high sediment supply will continue until the gorge cliffs revegetate or erode to a stable slope. The measurements demonstrate both the control exercised by sediment supply on transport rates and the persistent long-term impact of major floods on mountain streams.
Author(s): Bathurst JC, Ashiq M
Publication type: Article
Publication status: Published
Journal: Earth Surface Processes and Landforms
Year: 1998
Volume: 23
Issue: 7
Pages: 643-649
Print publication date: 21/12/1998
ISSN (print): 0197-9337
ISSN (electronic): 1096-9837
URL: http://dx.doi.org/10.1002/(SICI)1096-9837(199807)23:7<643::AID-ESP889>3.0.CO;2-3
DOI: 10.1002/(SICI)1096-9837(199807)23:7<643::AID-ESP889>3.0.CO;2-3
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