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/]] | | [[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] | |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|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> | ||
==Components of Auxiliary Spillways== | ==Components of Auxiliary Spillways== | ||
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{{Website Icon}} [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/ Learn more about the importance of spillway design criteria at DamFailures.org] | {{Website Icon}} [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/ Learn more about the importance of spillway design criteria at DamFailures.org] | ||
==Best Practices Resources== | ==Best Practices Resources== | ||
{{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}} [[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}} [[Technical Release 210-60: Earth Dams and Reservoirs | Technical Release 210-60: Earth Dams and Reservoirs (Natural Resources Conservation Service)]] | ||
{{Document Icon}} [[ | {{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs | National Engineering Handbook: Chapter 21 - Design Hydrographs (Natural Resources Conservation Service)]] | ||
{{Document Icon}} [[ | {{Document Icon}} [[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}} [[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 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}} [[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)]] | {{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}}[[On-Demand Webinar: Introduction to Addressing Inadequate Conveyance Capacity at Dams]] | {{Video Icon}}[[On-Demand Webinar: Introduction to Addressing Inadequate Conveyance Capacity at Dams]] | ||
Revision as of 19:57, 21 October 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
[Paragraph here]
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: 4006
Revision Date: 10/21/2022