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<br />I <br />I <br />{ <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />IC <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Memorandum <br /> <br />DATE: <br /> <br />August 25, 1994 <br /> <br />TO: <br /> <br />John Remus - Corps of Engineers, Omaha District <br /> <br />FROM: <br /> <br />Tom Browning - Greenhome & O'Mara, Inc. <br /> <br />RE: <br /> <br />California Bend Project <br /> <br />The purpose of this memo is to confirm the Missouri River discharges that win be used for the hydraulic <br />analyses for the referenced project. Approximate flood frequency discharges were obtained from the <br />rating curve for Omaha, Nebraska provided by your office. The discharge used for the Construction <br />Reference Plane was obtained from you verbaIly during a past telephone conversation. A summary of the <br />assumed discharges are presented in the table below. <br /> <br />EXCEEDENCE FLOOD APPROXIMATE <br />PROBABILITY (%1 FREQUENCY lYRI DISCHARGE (CFSI <br />N/A CRP 31,000 <br />50 2 70,000 <br />20 5 90,000 <br />10 10 125,000 <br />4 25 155,000 <br />2 50 170,000 <br /> 100 190,000 <br />.2 500 245,000 <br /> <br />If these values do not seem reasonable, or if you have more accurate data available, please let me know so <br />that the appropriate discharges win be used for the HEC-2 models. Thank you. <br /> <br />cc: projed file, 4178-CAL-3S2 <br />twb, calm - c,'projedslcal;Noc\jnneml.doc <br />