Floodplain Connection
      Entrenchment Stream    
Basin Reach VWI (%) Ratio 2/ Gradient (%) 1/ Valley Characteristics Land-Use
Miller Creek Miller 1 20.0% 1.6% 4.0% constr by terraces within a broader valley Industrial
  Miller 2 3.6% 1.5% 7.1% constr by hillslopes within a steep V-shaped valley Green Space
  Miller 3 4.0% 1.6% 18.9% constr by alternating terraces and hillslopes Green Space
1/ Valley Width Index (VWI): Broad Valley Floor > 2.5; Narrow Valley Floor <2.5
2/ Entrenchment Ratio (Floodprone Width divided by the Active Channel Width): Values > 1.0 signify increasing floodplain interactions
3/ Stream Gradient: Low < 2%; Moderate 2% - 8%; Steep > 8.0%
NA = Not Available
Data Source: ODFW 2000