Trickle Channel Rehabilitation

by Mark R. Hunter, Urban Drainage and Flood Control, District, Denver, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource—In Search of Solutions


Perhaps the primary factor driving the need for trickle channels is urban development. Rural streams in the region display a hydraulic stability and vegetative cover that is resilient and durable enough to withstand runoff events under undeveloped conditions. In such a situation trickle channel erosion is minimal. After development, enlarged total runoff and increased base flows force the stream into a different hydraulic regime. Under these new conditions native stream channels are seldom able to resist the erosive forces. Trickle channels are often the chosen facilities to manage the creek and to limit the cumulative erosion due to base flows and small runoff events.

Subject Headings: Runoff | Channel stabilization | Rehabilitation | Hydraulics | Base flow | Floods | Urban development | Rural areas | Colorado | United States

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