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<br />Chart XI <br /> <br />DRY RETARDING BASIN IN ACTION <br /> <br /> <br /> <br />RA I LROAD <br /> <br />WATER LEVEL CAN RISE <br />TO THIS LEVEL WITHOUT <br />ENDANGER t NG THE DA~ . <br /> <br />--- ---='t~'llES~-=-~ - ~ <br /> <br />OPERATION OF FLOOD CONTROL <br />WORKS lS ENTIRELY AUTOMATIC <br />AND NOT DEPENDENT UPON FORE- <br />CASTS, JUDGMENTS OR ACTS OF <br />MAN, <br /> <br />AGRICULTURAL LANDS NOT DAMAGED <br />BY OCCASIONAL FLOODING OF 10,000 <br />ACRES BECAUSE WATER IS STilL. <br />INSTEAD RICH SILT IS DEPOSITED. <br /> <br />.",:- <br /> <br />"':;D1::~:.. <br /> <br />FlOOD STORAGE C~PACITY .P.......::\: <br />".",'..0",' .". <br />416000 ACRE FEET :--......:..Q-:.b. <br />. }:;'::.:;:~.~:~ <~i '; <br />~~:;.:.~ ;~: .~.::~.~ ~: ~ '~:::~"'~" <br /> <br /> <br />, <br />, <br /> <br /> <br />TUNNELS DISCHARGING ONLY <br />THE AMOUNT OF WATER THAT <br />THE RIVER CHANNEL BELOW <br />CAN HANDLE WITH SAFETY. <br /> <br />