The Coyote Dam Outlet Works Replacement Project: Hazard Reduction

by David Edward Hook, Santa Clara Valley Water District, San Jose, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The Santa Clara Valley Water District's Coyote Dam faced three major concerns: siltation of the existing outlet; a fault that crosses the existing outlet pipe; and the dam toe and the downstream end of the outlet pipe were submerged in a plunge pool. A new outlet works combining a unique combination of features (including a tunnel with articulated joints at the fault crossing, sized to flow 1/3 full at the design flow) was utilized to resolve these problems.

Subject Headings: Dams | Project management | Disasters and hazards | Water pipelines | Spillways | Water tunnels | Scour | Tunnels

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