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- Info
Mitigation of sedimentation problems in watersheds at the urban interface
| Author: |
Hamilton, Douglas |
| Date: |
1990 |
| Periodical: |
In: DeVries, Johannes J.; Conrad, Susan G., eds. California Watersheds at the Urban Interface: Proceedings of the Third Biennial Watershed Conference; 1990 October 30-31; Ontario, CA: |
| Abstract: |
The interface between urban and natural areas is often synonymous with the point where land becomes too steep to develop. This is true for many of the population centers in the southwestern United States. For these areas the primary sedimentation problem at the urban interface is basic: too much sediment. Heavy rainfall transports large amounts of sediment through steep confined mountain canyons until it deposits in a fan or cone-like shape at the foot of the mountain range. The deposition of alluvial sediments creates an expansive, topographically smooth transition between the mountain range and the regional geography. These areas, known as alluvial fans, are ideally suited for urbanization. The main drawback, of course, is the sediment deposition process that created the alluvial fan continues to function resulting in potentially hazardous conditions during periods of heavy. |
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