Rate of maximum flow of water through a stream or river on land directly or indirectly managed by the organization as of the end of the reporting period.
Peak Flow Rate (OI8541)
- Reporting Format Unit Referenced within Metric Definition
- Metric Type Metric
- Metric Level Organization
- IRIS Metric Citation IRIS, 2021. Peak Flow Rate (OI8541). v5.2.
Footnote
Organizations should footnote all assumptions used, including source(s) of data.
Usage Guidance
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This metric is intended to capture the highest rate of water flowing through a stream or river per unit of time, typically measured in cubic feet per second or cubic meters per second. Maximum waterflow often occurs during storms.
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To calculate these data, organizations may use modeling tools such as HydroCAD's Rational Method (https://www.hydrocad.net/rational.htm) or USDA's WinTR-55 Watershed Hydrology (https://www.nrcs.usda.gov/wps/portal/nrcs/detailfull/national/water/?cid=stelprdb1042901).
Impact Categories & Themes
SDG Goals & Targets
Clean Water and Sanitation
- SDG Target 6.3
- SDG Target 6.4
Decent Work and Economic Growth
- SDG Target 8.4
Industry, Innovation and Infrastructure
- SDG Target 9.4
Sustainable Cities and Communities
- SDG Target 11.6
Responsible Consumption and Production
- SDG Target 12.2
- SDG Target 12.4
- SDG Target 12.6
Metric History
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June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revisions to definition and usage guidance for clarity.
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January 2020 - IRIS v5.1 Released
New metric. Peak Flow Rate (OI8541) was developed via the IRIS+ Sustainable Water Management Expert Subgroup.