flood-plain step

flood-plain step
   An essentially flat, terrace-like alluvial surface within a valley that is frequently covered by flood water from the present stream (e.g., below the 100 year flood level); any approximately horizontal surface still actively modified by fluvial scour and/or deposition (i.e., cut and fill and/or scour and fill processes). May occur individually or as a series of steps.
   Compare: stream terrace.
   SW & RR

Glossary of landform and geologic terms. 2013.

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