Type C streams are located in narrow to wide valleys, constructed from alluvial deposition. They have a well developed floodplain (slightly entrenched), are relatively sinuous with a channel slope of 2% or less and a bedform morphology indicative of a riffle/pool configuration. They are often thought of as “Wide Valley Bottoms Streams.” These streams are typically wider than they are deep, are stable and usually are sediment supply and transport limited. However, if they have gravel or finer bed and bank materials they will have point bars, riffles, and pools. These systems are susceptible to scour, erosion, and meander migration. As the bed and bank material become finer, a larger percentage of the sediment load will be suspended or wash load. Type C channels usually occur in to bed slopes of up to 2 percent.
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