Sediment and Water Quality Control Devices in Small Watersheds

by Hasan Nouri, Rivertech Inc, Laguna Hills, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The physical behavior and health of an alluvial stream depends on the extent of man's interferences in its tributary areas. In its natural setting a stream provides three main functions of: (a) allowing the conveyance of flood waters and drainage; (b) permitting the transportation of bed load as well as suspended load and; (c) assimilating some of the pollutants generated in its tributary areas. When a development is completed in a watershed which discharges to the stream, peak flood discharges and pollutant levels will be increased, while sediment yield will be reduced. If these increases and reduction are beyond the tolerance limit of the stream it will be subjected to environmental and economic damages. This paper briefly describes the behavior of a stream in its natural state and how it may be impacted by upstream development. A device that can mitigate the adverse impacts of water quality, peak discharge and transportation of bed load is conceptually described.

Subject Headings: Water quality | Water discharge | Bed loads | Rivers and streams | Water treatment | Alluvial channels | Watersheds

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