Auxiliary Spillways - Revision history

Mpollei@gfnet.com at 19:34, 11 July 2023

2023-07-11T19:34:24Z

← Older revision		Revision as of 19:34, 11 July 2023
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	<noautolinks>==Best Practices Resources==</noautolinks>		<noautolinks>==Best Practices Resources==</noautolinks>
	{{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), USBR~~, 2022~~]]		{{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), USBR]]
	{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs, NRCS~~, 2019~~]]		{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs, NRCS]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs, NRCS~~, 2019~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs, NRCS]]
	{{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, FERC~~, 2015~~]]		{{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, FERC]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 50 - Earth Spillway Design \| National Engineering Handbook: Chapter 50 - Earth Spillway Design, NRCS~~, 2014~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 50 - Earth Spillway Design \| National Engineering Handbook: Chapter 50 - Earth Spillway Design, NRCS]]
	{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA~~, 2013~~]]		{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA]]
	{{Document Icon}} [[Hydraulic Design of Spillways (EM 1110-2-1603) \| Hydraulic Design of Spillways (EM 1110-2-1603), USACE~~, 1992~~]]		{{Document Icon}} [[Hydraulic Design of Spillways (EM 1110-2-1603) \| Hydraulic Design of Spillways (EM 1110-2-1603), USACE]]
	{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR~~, 1987~~]]		{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR]]

	==Trainings==		==Trainings==

Rmanwaring at 00:10, 14 December 2022

2022-12-14T00:10:17Z

← Older revision		Revision as of 00:10, 14 December 2022
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	==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]]
	{{Video Icon}}[[On-Demand Webinar: Inspection and Assessment of Spillways]]		{{Video Icon}} [[On-Demand Webinar: Inspection and Assessment of Spillways]]
	{{Video Icon}}[[On-Demand Webinar: Inlet and Outlet Hydraulics for Spillways and Outlet Structures]]		{{Video Icon}} [[On-Demand Webinar: Inlet and Outlet Hydraulics for Spillways and Outlet Structures]]

Rmanwaring at 00:09, 14 December 2022

2022-12-14T00:09:29Z

← Older revision		Revision as of 00:09, 14 December 2022
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	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“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 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), USBR, 2022]]</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 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), USBR, 2022]]</ref>

	In the past, auxiliary spillways were commonly referred to as "[[Emergency Spillways\|emergency spillways]]". This practice should be discontinued. Media references to flow through “emergency spillways” often leads to a misconception by the public that an emergency condition exists at a dam when the dam is safely functioning as designed. <ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref>		In the past, auxiliary spillways were commonly referred to as "[[Emergency Spillways \| emergency spillways]]". This practice should be discontinued. Media references to flow through “emergency spillways” often leads to a misconception by the public that an emergency condition exists at a dam when the dam is safely functioning as designed. <ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref>

	==Life Cycle of Auxiliary Spillways==		==Life Cycle of Auxiliary Spillways==
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	==Examples==		==Examples==
	{{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==
	{{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~~)]]		<noautolinks>==Best Practices Resources==</noautolinks>
	{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs ~~(Natural Resources Conservation Service)~~]]		{{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), USBR, 2022]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs ~~(Natural Resources Conservation Service)~~]]		{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs, NRCS, 2019]]
	{{Document Icon}} [[~~National~~ Engineering ~~Handbook~~: Chapter 50 - ~~Earth Spillway~~ Design \| ~~National~~ Engineering ~~Handbook~~: Chapter 50 - ~~Earth Spillway~~ Design ~~(Natural Resources Conservation Service)~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs, NRCS, 2019]]
	{{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}} [[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, FERC, 2015]]
	{{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}} [[National Engineering Handbook: Chapter 50 - Earth Spillway Design \| National Engineering Handbook: Chapter 50 - Earth Spillway Design, NRCS, 2014]]
	{{Document Icon}} [[Design of ~~Small Dams~~ \| Design of ~~Small Dams~~ (~~Bureau of Reclamation~~)]]		{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]
	{{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}} [[Hydraulic Design of Spillways (EM 1110-2-1603) \| Hydraulic Design of Spillways (EM 1110-2-1603), USACE, 1992]]
			{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR, 1987]]

	==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]]

Grichards at 23:28, 2 December 2022

2022-12-02T23:28:21Z

← Older revision		Revision as of 23:28, 2 December 2022
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	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“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>		“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 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), USBR, 2022]]</ref>

	In the past, auxiliary spillways were commonly referred to as "[[Emergency Spillways\|emergency spillways]]". This practice should be discontinued. Media references to flow through “emergency spillways” often leads to a misconception by the public that an emergency condition exists at a dam when the dam is safely functioning as designed. <ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref>		In the past, auxiliary spillways were commonly referred to as "[[Emergency Spillways\|emergency spillways]]". This practice should be discontinued. Media references to flow through “emergency spillways” often leads to a misconception by the public that an emergency condition exists at a dam when the dam is safely functioning as designed. <ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref>

Grichards at 23:26, 2 December 2022

2022-12-02T23:26:52Z

← Older revision		Revision as of 23:26, 2 December 2022
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	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“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>		“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>

			In the past, auxiliary spillways were commonly referred to as "[[Emergency Spillways\|emergency spillways]]". This practice should be discontinued. Media references to flow through “emergency spillways” often leads to a misconception by the public that an emergency condition exists at a dam when the dam is safely functioning as designed. <ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref>

	==Life Cycle of Auxiliary Spillways==		==Life Cycle of Auxiliary Spillways==

Grichards at 23:13, 2 December 2022

2022-12-02T23:13:10Z

← Older revision		Revision as of 23:13, 2 December 2022
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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/]]
	\|-		\|-
	\|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]
	\|}		\|}

Grichards at 23:12, 2 December 2022

2022-12-02T23:12:52Z

← Older revision		Revision as of 23:12, 2 December 2022
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	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“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>		“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==~~
	~~[Paragraph here]~~

	==Life Cycle of Auxiliary Spillways==		==Life Cycle of Auxiliary Spillways==
	~~[Paragraph here]~~

	*[[Design and Construction of Auxiliary Spillways]]		*[[Design and Construction of Auxiliary Spillways]]
	*[[O&M of Auxiliary Spillways]]		*[[O&M of Auxiliary Spillways]]

Grichards at 06:12, 18 November 2022

2022-11-18T06:12:24Z

← Older revision		Revision as of 06:12, 18 November 2022
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	__NOTOC__		__NOTOC__
			[[Category:Spillways]]
	----		----

Rmanwaring at 19:57, 21 October 2022

2022-10-21T19:57:57Z

Grichards at 18:40, 27 September 2022

2022-09-27T18:40:09Z

← Older revision		Revision as of 18:40, 27 September 2022
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	==Examples==		==Examples==
	{{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]		{{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)]]

← Older revision		Revision as of 19:34, 11 July 2023
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	<noautolinks>==Best Practices Resources==</noautolinks>		<noautolinks>==Best Practices Resources==</noautolinks>
	{{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), USBR~~, 2022~~]]		{{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), USBR]]
	{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs, NRCS~~, 2019~~]]		{{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs \| Technical Release 210-60: Earth Dams and Reservoirs, NRCS]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs, NRCS~~, 2019~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 21 - Design Hydrographs \| National Engineering Handbook: Chapter 21 - Design Hydrographs, NRCS]]
	{{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, FERC~~, 2015~~]]		{{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, FERC]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 50 - Earth Spillway Design \| National Engineering Handbook: Chapter 50 - Earth Spillway Design, NRCS~~, 2014~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 50 - Earth Spillway Design \| National Engineering Handbook: Chapter 50 - Earth Spillway Design, NRCS]]
	{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA~~, 2013~~]]		{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA]]
	{{Document Icon}} [[Hydraulic Design of Spillways (EM 1110-2-1603) \| Hydraulic Design of Spillways (EM 1110-2-1603), USACE~~, 1992~~]]		{{Document Icon}} [[Hydraulic Design of Spillways (EM 1110-2-1603) \| Hydraulic Design of Spillways (EM 1110-2-1603), USACE]]
	{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR~~, 1987~~]]		{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR]]

	==Trainings==		==Trainings==

← Older revision		Revision as of 19:57, 21 October 2022
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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/]]
	\|-		\|-
	\|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]
	\|}		\|}

	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“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}} [[~~Hydrology~~ National Engineering Handbook: Chapter 21- Design Hydrographs\|National Engineering Handbook: Chapter 21- Design Hydrographs (Natural Resources Conservation Service)]]		{{Document Icon}} [[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}} [[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]]