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Michigan DEQ Hydraulic Report Guidelines
www.michigan.govThe hydraulic analysis should compare the existing floodplain energy grade line elevations with the proposed floodplain energy grade line elevations for a range of discharges up to and
Guide for Selecting Manning's Roughness Coefficients for ...
pubs.usgs.gov^1486^2/3,1/2 (1) where V=mean velocity of flow, in feet per second, R= hydraulic radius, in feet, Se =slope of energy grade line, in feet per foot, and n=Manning's roughness coefficient. When many calculations are necessary in using Man ning's formula, using a conveyance term is sometimes convenient. Conveyance is defined as K=-1.486-AR2/3 (2)