Laserfiche WebLink
<br />-~AY 27 '97 11:54AM L R eWE <br /> <br />P.2 <br /> <br />.p --~ <br /> <br />Flatiron Companies- Job 207FIP05 <br /> <br />Preliminary <br /> <br />April 9, 1997 <br /> <br /> Table 1 <br />Duration of 100.Yr Base Flood <br />South Boulder Cr at US Hw 36 <br />Beginning & Ending Duration Between <br />Discharge, CFS Discharges. Hours <br />0 to 0 60.0 <br />250 to 250 27.3 <br />500 to 500 20.2 <br />1.000 to 1,000 15.3 <br />1.500 to 1,500 11.7 <br />2,000 to 2,000 10.8 <br />3,000 to 3.000 7.3 <br />3,500 to 3.500 4.4 <br />4,000 to 4,000 2.0 <br />5,000 to 5,000 1.1 <br />5,500 to 5,500 0.9 <br />5,900 to ,5,900 0 <br />2,000 to 500 19.1 <br />1,000 to 500 19.4 <br /> <br />Notes: <br />From measurements of the hydrograph used <br />by Greenhorne & O'Mara, Inc., 1986. <br />Believed to be developed by the USACE, Omaha. <br />Obtained from Taggart Associates, Inc., 4/16/97. <br /> <br />Leonard Rice Consulting Water Engineers. Inc. <br /> <br />( Printed 17 -Apr-97) <br /> <br />File: Freb'oard.WB1 <br />