Auxiliary Spillways: Difference between revisions
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| [[Image:IDF4.png|350px|x350px|link=https://damfailures.org/lessons-learned/high-and-significant-hazard-dams-should-be-design-to-pass-an-appropriate-design-flood-dams-constructed-prior-to-the-availability-of-extreme-rainfall-data-should-be-assessed-to-make-sure-they-have-ad/]] | |||
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|style="text-align:center; font-size:90%;"| Learn more about the importance of spillway design criteria at [https://damfailures.org/lessons-learned/high-and-significant-hazard-dams-should-be-design-to-pass-an-appropriate-design-flood-dams-constructed-prior-to-the-availability-of-extreme-rainfall-data-should-be-assessed-to-make-sure-they-have-ad/ DamFailures.org] | |||
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“An auxiliary spillway is infrequently used and may be a secondary spillway (augmenting a service spillway discharge capacity). During operation there could be some degree of structural damage or erosion to the auxiliary spillway due to releases up to and including the maximum design discharge. Auxiliary spillways may be less robust, erosion-resistant structures consisting of some cast-in-place reinforced concrete, riprap channel protection and/or unarmored excavated channels”.<ref name="DS14">[[Design Standard No. 14: Appurtenant Structures for Dams (Spillways and Outlet Works) | Design Standard No. 14: Appurtenant Structures for Dams (Spillways and Outlet Works), USBR, 2014]]</ref> | “An auxiliary spillway is infrequently used and may be a secondary spillway (augmenting a service spillway discharge capacity). During operation there could be some degree of structural damage or erosion to the auxiliary spillway due to releases up to and including the maximum design discharge. Auxiliary spillways may be less robust, erosion-resistant structures consisting of some cast-in-place reinforced concrete, riprap channel protection and/or unarmored excavated channels”.<ref name="DS14">[[Design Standard No. 14: Appurtenant Structures for Dams (Spillways and Outlet Works) | Design Standard No. 14: Appurtenant Structures for Dams (Spillways and Outlet Works), USBR, 2014]]</ref> | ||
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==Examples== | ==Examples== | ||
{{Website Icon}} | {{Website Icon}} Learn more about the importance of spillway design criteria at [https://damfailures.org/lessons-learned/high-and-significant-hazard-dams-should-be-design-to-pass-an-appropriate-design-flood-dams-constructed-prior-to-the-availability-of-extreme-rainfall-data-should-be-assessed-to-make-sure-they-have-ad/ DamFailures.org] | ||
==Best Practices Resources== | ==Best Practices Resources== | ||
{{Document Icon}} [[Design | {{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)|Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) (Federal Emergency Management Agency)]] | ||
{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs|Technical Release 210-60: Earth Dams and Reservoirs (Natural Resources Conservation Service)]] | |||
{{Document Icon}} [[Hydrology National Engineering Handbook: Chapter 21- Design Hydrographs|National Engineering Handbook: Chapter 21- Design Hydrographs (Natural Resources Conservation Service)]] | |||
{{Document Icon}} [[Dams National Engineering Handbook: Chapter 50- Earth Spillway Design|National Engineering Handbook: Chapter 50- Earth Spillway Design (Natural Resources Conservation Service)]] | |||
{{Document Icon}} [[Hydraulic Design of Spillways (EM 1110-2-1603)|Hydraulic Design of Spillways (EM 1110-2-1603) (U.S. Army Corps of Engineers)]] | |||
{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 3: General Spillway Design Considerations)|Design Standards No. 14: Appurtenant Structures for Dams (Ch. 3: General Spillway Design Considerations) (Bureau of Reclamation)]] | |||
{{Document Icon}} [[Design of Small Dams|Design of Small Dams (Bureau of Reclamation)]] | |||
{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 2- Selecting and Accommodating Inflow Design Floods for Dams|Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 2- Selecting and Accommodating Inflow Design Floods for Dams (Federal Energy Regulatory Commission)]] | |||
==Trainings== | ==Trainings== | ||
{{Video Icon}} | {{Video Icon}}[[On-Demand Webinar: Introduction to Addressing Inadequate Conveyance Capacity at Dams]] | ||
{{Video Icon}}[[On-Demand Webinar: Inspection and Assessment of Spillways]] | |||
{{Video Icon}}[[On-Demand Webinar: Inlet and Outlet Hydraulics for Spillways and Outlet Structures]] | |||
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Revision as of 05:08, 16 September 2022
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| Learn more about the importance of spillway design criteria at DamFailures.org |
“An auxiliary spillway is infrequently used and may be a secondary spillway (augmenting a service spillway discharge capacity). During operation there could be some degree of structural damage or erosion to the auxiliary spillway due to releases up to and including the maximum design discharge. Auxiliary spillways may be less robust, erosion-resistant structures consisting of some cast-in-place reinforced concrete, riprap channel protection and/or unarmored excavated channels”.[1]
Components of Auxiliary Spillways
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Life Cycle of Auxiliary Spillways
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Examples
Learn more about the importance of spillway design criteria at DamFailures.org
Best Practices Resources
Technical Release 210-60: Earth Dams and Reservoirs (Natural Resources Conservation Service)
Hydraulic Design of Spillways (EM 1110-2-1603) (U.S. Army Corps of Engineers)
Design of Small Dams (Bureau of Reclamation)
Trainings
On-Demand Webinar: Introduction to Addressing Inadequate Conveyance Capacity at Dams
On-Demand Webinar: Inspection and Assessment of Spillways
On-Demand Webinar: Inlet and Outlet Hydraulics for Spillways and Outlet Structures
Citations:
Revision ID: 3372
Revision Date: 09/16/2022