Reservoir Drawdown - Revision history

Mpollei@gfnet.com at 04:56, 21 July 2023

2023-07-21T04:56:33Z

← Older revision		Revision as of 04:56, 21 July 2023
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	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3) \| Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3), USBR~~, 1990~~]]		{{Document Icon}} [[Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3) \| Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3), USBR]]
	{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations), USBR~~, 2022~~]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations), USBR]]
	{{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}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE~~, 1997~~]]		{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE]]

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Grichards at 23:30, 16 March 2023

2023-03-16T23:30:23Z

← Older revision		Revision as of 23:30, 16 March 2023
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	“Low level outlets are provided to maintain downstream flows for all levels of the [[reservoirs]] operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>		“Low level outlets are provided to maintain downstream flows for all levels of the [[reservoirs]] operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>

			See also: [[Hydraulics]] > [[Hydraulic Performance of Outlet Works]]

	==Examples==		==Examples==

Grichards at 03:28, 23 February 2023

2023-02-23T03:28:23Z

← Older revision		Revision as of 03:28, 23 February 2023
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	==Best Practices Resources==		==Best Practices Resources==
			{{Document Icon}} [[Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3) \| Criteria and Guidelines for Evacuating Storage Reservoirs and Sizing Low-Level Outlet Works (ACER TM No. 3), USBR, 1990]]
	{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations), USBR, 2022]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations), USBR, 2022]]
	{{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, 2013]]

Rmanwaring at 19:55, 19 December 2022

2022-12-19T19:55:22Z

← Older revision		Revision as of 19:55, 19 December 2022
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	==Examples==		==Examples==
	{{Website Icon}} [https://damfailures.org/lessons-learned/all-dams-need-an-operable-reservoir-drain-system/ Learn about the important of having an operable reservoir drain at DamFailures.org]		{{Website Icon}} [https://damfailures.org/lessons-learned/all-dams-need-an-operable-reservoir-drain-system/ Learn about the important of having an operable reservoir drain at DamFailures.org]

	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations)\|Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) (~~Bureau of Reclamation~~)]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations), USBR, 2022]]
	{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420)\|Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) ~~(U.S. Army Corps of Engineers)]]~~		{{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 (Federal Emergency Management Agency)~~]]		{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE, 1997]]

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Grichards at 00:26, 13 December 2022

2022-12-13T00:26:30Z

← Older revision		Revision as of 00:26, 13 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 -->
	“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity of the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>		“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity of the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref> The [[Outlet Works\|outlet works]] should be designed to draw down the reservoir within a reasonable period of time assuming normal inflows from the watershed. Several state dam safety agencies require that dams have the ability to draw down the reservoir pool by a specified depth of water within a certain timeframe. These requirements vary by jurisdiction.

	“Low level outlets are provided to maintain downstream flows for all levels of the [[reservoirs]] operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>		“Low level outlets are provided to maintain downstream flows for all levels of the [[reservoirs]] operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>

Grichards at 05:01, 18 November 2022

2022-11-18T05:01:51Z

← Older revision		Revision as of 05:01, 18 November 2022
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	__NOTOC__		__NOTOC__
			[[Category:Normal Flow]]
	----		----
	<!-- 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 -->
	“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity of the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>		“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity of the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>

	“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>		“Low level outlets are provided to maintain downstream flows for all levels of the [[reservoirs]] operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>

	==Examples==		==Examples==

Grichards at 23:59, 16 September 2022

2022-09-16T23:59:11Z

← Older revision		Revision as of 23:59, 16 September 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 -->
	“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>		“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity of the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>

	“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>		“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>

Grichards at 23:58, 16 September 2022

2022-09-16T23:58:59Z

← Older revision		Revision as of 23:58, 16 September 2022
Line 4:		Line 4:
	“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>		“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>

	“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420" />		“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>

	==Examples==		==Examples==
	{{Website Icon}}		{{Website Icon}} [https://damfailures.org/lessons-learned/all-dams-need-an-operable-reservoir-drain-system/ Learn about the important of having an operable reservoir drain at DamFailures.org]
	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420)]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations)\|Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) (Bureau of Reclamation)]]
	{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)]]		{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420)\|Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) (U.S. Army Corps of Engineers)]]
	~~==Trainings==~~		{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)\|Selecting and Accommodating Inflow Design Floods for Dams (Federal Emergency Management Agency)]]
	~~{{Video Icon}}~~

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Grichards: Created page with "NOTOC ---- “Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) | FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design..."

2022-09-16T23:53:10Z

Created page with "__NOTOC__ ----  “Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) | FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design..."

New page

__NOTOC__
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“Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) | FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>

“Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420" />

==Examples==
{{Website Icon}}
==Best Practices Resources==
{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420)]]
{{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)]]
==Trainings==
{{Video Icon}}


{{Citations}}


{{revhistinf}}