Hydrology - Revision history

Grichards@gfnet.com at 19:45, 27 August 2024

2024-08-27T19:45:30Z

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	* [[Groundwater]]		* [[Groundwater]]
	* [[Unusual or Changing Conditions in a Watershed]]		* [[Unusual or Changing Conditions in a Watershed]]

			A critical aspect of any [[engineering]] analysis is communication. There are a variety of hydrologic modeling approaches and methodologies, and it is important to owners, consultants, and regulators that clear communication is integrated in the process. General guidance and recommendations regarding both pre- and post-modeling communication are provided on this page: [[Modeling Communication]]. Items specific to hydrologic analysis that should be considered in advance of any modeling effort are summarized here: [[Pre-Modeling Communication: Hydrologic Model Considerations]].

	==Examples==		==Examples==

Grichards@gfnet.com at 23:47, 19 April 2024

2024-04-19T23:47:21Z

← Older revision		Revision as of 23:47, 19 April 2024
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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 -->
	~~Test Edit.~~ Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Grichards@gfnet.com at 23:46, 19 April 2024

2024-04-19T23:46:46Z

← Older revision		Revision as of 23:46, 19 April 2024
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Test Edit. Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Jeremy.franz@state.co.us at 21:24, 28 March 2024

2024-03-28T21:24:42Z

← Older revision		Revision as of 21:24, 28 March 2024
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

	~~This is an edit. This is a link to the [[hydraulics]] page.~~

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Alynch@gfnet.com at 21:09, 28 March 2024

2024-03-28T21:09:18Z

← Older revision		Revision as of 21:09, 28 March 2024
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

			This is an edit. This is a link to the [[hydraulics]] page.

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Jeremy.franz@state.co.us at 21:07, 28 March 2024

2024-03-28T21:07:34Z

← Older revision		Revision as of 21:07, 28 March 2024
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

	~~[[Consequence Analysis]]~~

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Jeremy.franz@state.co.us at 21:06, 28 March 2024

2024-03-28T21:06:36Z

← Older revision		Revision as of 21:06, 28 March 2024
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

			[[Consequence Analysis]]

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

Mpollei@gfnet.com at 20:42, 11 July 2023

2023-07-11T20:42:15Z

← Older revision		Revision as of 20:42, 11 July 2023
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	==Best Practices Resources==		==Best Practices Resources==
	{{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}} [[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}} [[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}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations), USBR~~, 2013~~]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations), USBR]]
	{{Document Icon}} [[Flood Hydrology Manual \| Flood Hydrology Manual, USBR~~, 1989~~]]		{{Document Icon}} [[Flood Hydrology Manual \| Flood Hydrology Manual, USBR]]
	{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE~~, 1987~~]]		{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE]]

	==Trainings==		==Trainings==

Alynch@gfnet.com at 22:15, 29 June 2023

2023-06-29T22:15:13Z

← Older revision		Revision as of 22:15, 29 June 2023
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	----		----
	{\| align="right" style="width:10%;" cellpadding="7"		{\| align="right" style="width:10%;" cellpadding="7"
	\| [[Image:IDF2.jpg\|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:IDF2.jpg\|350px\|x350px\|link=]]
	\|-		\|-
	\|style="text-align:center; font-size:90%;"\| All dams need adequate spillway capacity. Learn more 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%;"\| All dams need adequate spillway capacity. Learn more 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]

Alynch@gfnet.com: Corrected typo and added link to site-specific PMP page.

2023-06-20T18:30:54Z

Corrected typo and added link to site-specific PMP page.

← Older revision		Revision as of 18:30, 20 June 2023
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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 -->
	Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam ~~as well as~~ in assessments of the dam ~~into~~ the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>		Hydrology is essential not only in the design of a dam, but also in the feasibility study of a dam and in assessments of the dam looking to the future as the state-of-the-practice evolves. The three main components of [[Flood Hydrology\|flood hydrology]], according to the United States [[Bureau of Reclamation]] (USBR) are “(1) hydrometeorology related to probable maximum [[precipitation]] determinations, (2) probable maximum flood hydrograph determinations, and (3) statistics and probabilities relating to the magnitude and frequency of flood flows”.<ref name="FHM">[[Flood Hydrology Manual \| Flood Hydrology Manual, USBR, 1989]]</ref>

	“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.		“One of the most common causes of dam failures is the inability to safely pass flood flows. Failures caused by hydrologic conditions can range from sudden failure, with complete breaching or collapse of the dam, to gradual failure, with progressive erosion and partial breaching”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) \| Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013]]</ref> Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.

	==Hydrologic Design Criteria==		==Hydrologic Design Criteria==
	“Selection of an [[Inflow Design Flood]] (IDF) for a new dam or a dam undergoing significant modifications should ~~taken~~ into account both current conditions and reasonably anticipated future development. Development within the upstream watershed can cause increased runoff and peak flows, while development within the downstream inundation area can alter [[Hazard Potential Classification\|hazard potential classification]] and specific estimates of consequences of hydrologic events… When the cost of more detailed methods such as incremental [[Consequence Analysis\|consequence analysis]], a site-specific probable maximum precipitation study, or risk-informed hydrologic hazard analysis is prohibitive, prescriptive IDF criteria for High, Significant, and Low Hazard dams are recommended”.<ref name="FEMA94" />		“Selection of an [[Inflow Design Flood]] (IDF) for a new dam or a dam undergoing significant modifications should take into account both current conditions and reasonably anticipated future development. Development within the upstream watershed can cause increased runoff and peak flows, while development within the downstream inundation area can alter [[Hazard Potential Classification\|hazard potential classification]] and specific estimates of consequences of hydrologic events… When the cost of more detailed methods such as incremental [[Consequence Analysis\|consequence analysis]], a [[Inflow_Design_Flood#Site-Specific_PMP_Study_Approach\|site-specific probable maximum precipitation study]], or risk-informed hydrologic hazard analysis is prohibitive, prescriptive IDF criteria for High, Significant, and Low Hazard dams are recommended”.<ref name="FEMA94" />

	The applicability and acceptability of various hydrologic methods varies widely across the US. Familiarity with the primary runoff generating mechanisms based on the geology, topography, meteorology, and seasonality of the region are paramount to inflow design flood determination. Guidelines and regulations related to hydrologic methods and the inflow design flow also vary based on regulatory jurisdiction.		The applicability and acceptability of various hydrologic methods varies widely across the US. Familiarity with the primary runoff generating mechanisms based on the geology, topography, meteorology, and seasonality of the region are paramount to inflow design flood determination. Guidelines and regulations related to hydrologic methods and the inflow design flow also vary based on regulatory jurisdiction.

	==Types of Evaluations==		==Types of Evaluations==

← Older revision		Revision as of 20:42, 11 July 2023
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	==Best Practices Resources==		==Best Practices Resources==
	{{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}} [[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}} [[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}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations), USBR~~, 2013~~]]		{{Document Icon}} [[Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations) \| Design Standards No. 14: Appurtenant Structures for Dams (Ch. 2: Hydrologic Considerations), USBR]]
	{{Document Icon}} [[Flood Hydrology Manual \| Flood Hydrology Manual, USBR~~, 1989~~]]		{{Document Icon}} [[Flood Hydrology Manual \| Flood Hydrology Manual, USBR]]
	{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE~~, 1987~~]]		{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) \| Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE]]

	==Trainings==		==Trainings==