Flood Hydrology: Difference between revisions
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==Examples== | ==Examples== | ||
{{Website Icon}} [https://damfailures.org/lessons-learned/extreme-floods-do-occur/ Learn more about the occurrence of extreme floods at DamFailures.org] | {{Website Icon}} [https://damfailures.org/lessons-learned/extreme-floods-do-occur/ Learn more about the occurrence of extreme floods 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) | {{Document Icon}} [[Technical Release 210-60: Earth Dams and Reservoirs | Technical Release 210-60: Earth Dams and Reservoirs, NRCS, 2019]] | ||
{{Document Icon}} [[ | {{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 8- Determination of the Probable Maximum Flood|Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 8- Determination of the Probable Maximum Flood | {{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}} [[ | {{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 8- Determination of the Probable Maximum Flood | Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 8- Determination of the Probable Maximum Flood, FERC, 2001]] | ||
{{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) | Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE, 1997]] | |||
{{Document Icon}} [[Flood Hydrology Manual|Flood Hydrology Manual | {{Document Icon}} [[Flood Hydrology Manual | Flood Hydrology Manual, USBR, 1989]] | ||
==Trainings== | ==Trainings== | ||
{{Video Icon}} [https://youtu.be/VNzGUmhTSb0 Dam Owner Academy: Extreme Rainfall Events] | {{Video Icon}} [https://youtu.be/VNzGUmhTSb0 Dam Owner Academy: Extreme Rainfall Events] | ||
Revision as of 19:58, 19 December 2022
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| Extreme flood do occur. Learn more at DamFailures.org |
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 into the future as the state-of-the-practice evolves. The three main components of 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”.[1]
“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”.[2] Therefore, hydrologic studies are among the most important sources of information when it comes to dam safety.
Methodologies
Examples
Learn more about the occurrence of extreme floods at DamFailures.org
Best Practices Resources
Technical Release 210-60: Earth Dams and Reservoirs, NRCS, 2019
Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94), FEMA, 2013
Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE, 1997
Flood Hydrology Manual, USBR, 1989
Trainings
Dam Owner Academy: Extreme Rainfall Events
Citations:
Revision ID: 5994
Revision Date: 12/19/2022