Regional Streamflow Duration Assessment Methods

  • What is the flow duration of my stream?

    Use rapid, field-based Regional SDAMs to classify streamflow duration at the reach scale. Learn more about it via the links below. Use the Web Application for Regional SDAMs.

  • Learn about SDAMs

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    What is streamflow duration? What are SDAMs? What can they be used for?

    Learn about SDAMs

  • Web Application for Regional SDAMs

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    Access the Web Application for Regional SDAMs to apply the Regional SDAMs for the Pacific Northwest, Arid West, Western Mountains, and Great Plains Regions.

    Web app for Regional SDAMs

  • Materials that support application of the Regional SDAMs

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    Access field forms, user manuals, suggested equipment list, training materials, additional references, data, and more.

    Supporting Materials

  • Development of the Regional SDAMs

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    Why Regional SDAMs were developed, Regional SDAM coverage and map, steps taken to develop them, and more.

    Development of the Regional SDAMs
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Last updated on April 7, 2025