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<br />CONVERSION FACTORS AND VERTICAL DATUM <br /> <br />CONVERSION FACTORS <br /> <br />Multiply By To obtain <br />inch 2.54 centimeter <br />feet 0.3048 rneters <br />miles 1.609 kilometers <br />cubic feet per second 0.02832 cubic meters per second <br />pound, avoirdupois 0.4536 kilogram <br />degrees Fahrenheit (OF) (1) degrees Celsius <br />Ternperature in degrees Fahrenheit COF) can be converted to degrees Celsius (oe) as follows: <br />oC = 5/9 x (OF - 32). <br /> <br />.. <br /> <br />VERTICAL DATUM <br /> <br />I <br />Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929:(NGVD <br />of 1929)-a geodetic datum derived from a general adjustment of the first-order level nets ofiboth the <br />United States and Canada, formerly called Sea Level Datum of 1929. I <br />I <br /> <br />~ <br /> <br />Conversion Factors iv <br />