Performance Metrics for Dynamic Stream Systems

Samuel Leberg
EPA (ORISE)
Washington, DC

Authors: Leberg, Samuel and Topping, Brian

On a national scale, Dynamic Alluvial Valleys (DAVs) exhibit a variety of morphologies (e.g., streams with multiple channels, streams with beaver, stream-wetland complexes, etc.), which may be unfamiliar to local regulators or lack an effective monitoring regime. In determining compensatory mitigation compliance and performance, simple and direct metrics are frequently the most straightforward measures of function, but restoration goals are multifunctional and may require the use of more complex or specific metrics. In this presentation, I will discuss the next steps for a comprehensive list of metrics that we previously presented for use to evaluate performance for Dynamic Alluvial Valley sites. This list encapsulates metrics both used in existing mitigation banks and those that are supported by literature. We plan to publish the list as a downloadable spreadsheet and hope to use this session to propose different formats for this document. Additionally, we plan to host future recurring meetings and webinars and will use this presentation gauge interest and feedback.

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