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Streams and Roads Layer

WV Wetland Functional Assessment

Prepare your wetland polygons for input.

  • Polygons must be mapped to the National Wetlands Inventory (NWI) standard. Read the section on mapping in the WVWRAM User Manual.
  • Avoid slivers or gaps between polygons that share a boundary.
  • There should be no overlapping polygons.
  • Carefully review the NWI attribute codes to be sure your codes are complete and correct.

Please verify that the polygons have been validated: