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<br />CONVERSION FACTORS AND VERTICAL DATUM <br /> <br />Multiply <br /> <br />foot (ft) <br />foot per mile (ft/mi) <br />mile (mil <br /> <br />By <br /> <br />Length <br />0.31),)8 <br />O.IRY') <br />1.0119 <br /> <br />To obtain <br /> <br />meter(m) <br />meter per kilometer (m/km) <br />kilometer (kill) <br /> <br />acre <br /> <br />acre.fool (acre/ft) <br />squ,-lre mile (mi~) <br /> <br />million gall om (Mgal) <br />cubic foot (ft3} <br />acre-foot (acre-h) <br /> <br />Area <br />OAO.)7 <br />0.011 1233 <br />~S9 <br />Volume <br /> <br />hectare (hal <br />cubic hectometer (hm3) <br />hectare (ha) <br /> <br />3.785 cubic meter (or') <br />O.02X317 cuhic meter (m4-') <br />0.001233 cubic hectometer (hm-') <br />~~----~~---------------,-- <br />Flow <br />O.028n---CiJblCnle"tef,JersecondW/S)--'---'-- <br />------ <br />Hydraulic gradient <br />0.1786 meter per kilometer (mlkm) <br /> <br />cubic foot per "ccond (ft-'/s) <br /> <br />foot per mile (ft/mil <br /> <br />Sea lenl: In this report ''sea Inel" refers to the National Geodetic Vertical Datum of 1929-- <br />a geodetic datum derived from a general adjustment of the fir:-.t-order level nets of the United States <br />and Canada. formerly called Sea Level Datum of 1929. <br /> <br />IV CONTENTS <br />