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Degradation Potential

This step integrates portions of the information summarized in Worksheet 14 (PDF version, 43 kb, 1 p., or Excel spreadsheet) that includes entrenchment ratio. The degree of channel incision based on bank height ratio (Figure 110 , PDF, 10 kb, 1 p., and Figure 111, PDF, 10 kb, 1 p.) is also used for this interpretation. Computations summarized in Step 22 and sediment competence (Worksheet 28, PDF, 11 kb, 1 p.) are key analyses to the final potential degradation (vertical containment) rating. Departure from reference condition is documented at this step for this process.

Use Worksheet 29a (PDF, 32 kb, 1 p.) to determine a final potential degradation (vertical containment) rating for impaired and reference reaches.

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