Monitoring Performance of a Novel Approach to Channel Design for Environmentally-Sensitive Stormwater Management: Lower Silver Creek, California
Abstract:Compound channel designs are increasingly being applied in urban watersheds to achieve both stormwater conveyance and ecosystem protection and restoration goals. A compound channel project was constructed on Lower Silver Creek in 2003, and a detailed monitoring program has been implemented to assess project performance and to improve future similar channel designs. Initial monitoring results identified unexpected incision of the low flow channel that occurred during the first high flow after construction but then stabilized during subsequent high flows. Monitoring results also suggest that while geomorphic and habitat objectives have not been fully achieved, it is likely that they will be achieved if current channel evolution trajectories continue. Stormwater conveyance objectives have been achieved. This monitoring effort offers insights regarding how compound channels can be successfully integrated into stormwater management programs so that both conveyance and ecological goals are achieved.
Document Type: Research Article
Publication date: October 1, 2007
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