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BROAD LEVEL DESCRIPTIONS OF THE MAJOR STREAM TYPES
DELINEATION METHODS 420
THE ROLE OF BANKFULL DISCHARGE
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aggradation alluvial fans alluvial valleys alluvium Altered Channel and/or associated Average bank erosion rates bankfull discharge bankfull stage bankfull width bed features bed material bedload bedrock braided C4 stream type changes channel adjustments channel dimensions Channel materials channel slope channel stability cobble colluvial colluvium Colorado cross-section debris deeply incised DELINEATIVE CRITERIA deltas depth described DESCRIPTION AND EXAMPLES developed Entrenchment Ratio eolian EXAMPLES OF STREAM flood floodplain fluvial geomorphic glacial gravel habitat high sediment supply Holocene hydraulic inventory Landform/soils landforms Level I stream locations meander width ratio measured moderately steep MORPHOLOGICAL DESCRIPTION parameters particle pools POOR POOR POOR potential processes reference reach riffle/pool riffles riparian vegetation river river morphology Rosgen San Juan River sediment transport shear stress shown in Figure Slope Range step/pool stream channels stream classification stream gradient stream systems streambank streamflow structurally controlled tion valley slope Valley Type values variables velocity W/D ratio watershed width/depth ratio