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<br />c. Alluvial streams are generally more susceptible to strElam <br />instability than nonalluvial; how'ever, the quality of bednJck in <br />a stream considered nonalluvial must be considered. <br /> <br />d. In alluvial channels. approximately 90 percent of all channel <br />changes OCCIJr during flows greater than the dominant <br />discharge. which typically oCI:ur less than 10 percent of the <br />time. <br /> <br />e, Bank appear.tnce is a good indicator of stability. <br /> <br />f. Types of banI< failure (see fi~lure), <br /> <br />NOTES: <br /> <br />2,7 <br />