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<br />16. Is roughness uniformly distributed across the flood plain? <br /> <br />If not, how should the flood plain be subdivided? <br /> <br />17-23. Computation of n for flood plain. <br /> <br />Adjustment factors without vegetation-density method <br /> <br />... <br />en <br /> <br />Subsection Base n, Irregularity, Obstructions, Vegetation, Computed <br /> nb nl n3 ~ n <br />/ <br />