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What information should be gathered prior to stabilizing a stream bank using biotechnical methods?
The condition of the stream banks should be assessed to identify where erosion control is necessary and where biotechnical methods are feasible. To adequately assess bank conditions, data must be collected on historical channel conditions, local hydrology, geomorphology, and bank geotechnical properties. Required data may include: historical photos, flow magnitudes, flood frequencies, bank material composition, channel substrate composition, vegetation composition and extent, channel cross-section data, photo documentation, and water quality (particularly turbidity) data. These data will also be valuable in providing a baseline understanding of the project site by which to evaluate project long-term effectiveness potential effects upstream and downstream of the site. Typically, in-stream biotechnical bank stabilization projects should be designed under the direction of a certified or licensed professional or through consultation with the NRCS.
Streambank Stabilization
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