Principal Spillways
From ASDSO Dam Safety Toolbox
Also known as “Service Spillways” according to the United States Bureau of Reclamation: “A service spillway provides continuous, or frequent regulated, or staged releases (controlled) or unregulated (uncontrolled) releases from a reservoir without significant damage to the dam, dike, or appurtenant structures due to releases up to and including the maximum design discharge. Service spillways are typically very robust, erosion-resistant structures consisting of mostly cast-in-place reinforced concrete and riprap channel protection”.[1]
Components of Principal Spillways
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Life Cycle of Principal Spillways
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Examples
Best Practices Resources
Design Standard No. 14: Appurtenant Structures for Dams (Spillways and Outlet Works)
Trainings
Citations:
Revision ID: 2434
Revision Date: 09/07/2022