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• <br /> pESIGN VOLUME <br /> STORM FREQUENCI' 10 (YEARS) <br /> STORM DURATION 24 (HOURS) <br /> SLOPE FACTOR 1.1 <br /> __ <br />GRADE STEEP _ __ <br /> WATERSHED WEIGHTED RCN 89 <br /> 24 HOUR RAINFALL 2.9 (INCHES) <br /> DETENTION TIME 24 (HOURS) <br /> #~# SEE ATTACHED RAINFALL SHEETS <br />_ RAINFALL RUNOFF DEPTH 1.81 (INCHES) <br /> <br />RUNOFF VOLUME _ <br />1.70441667 (AC/FT) <br /> ADJUSTED RUNOFF VOLUME 1.70441667 <br /> DESIGN VOLUME 2.71441667 <br />V <br /> <br /> STAGE STORAGE COMPUTATIONS <br /> <br /> ELEV AREA AREA AVE AREA INTERVAL STORAGE ACC STORAGE <br /> FEET SGR FT ACRE ACRE FEET ACRE FEET ACRE FEET <br /> <br /> 6620 9600 .220385675 <br /> GG25 14400 ,330578512 .2754820;]4 5 1.37741047 1.37741047 <br /> 6630 20000 .459136823 .394857668 5 1.9742BB34 3.35169881 <br /> ----- ----------- ----------- ---------------------- -------------- ------------- <br /> STORM FREGUENCI' FOR PEAK DI SCHARGE 25 <br /> EQUIVALENT DISCHARGE 47.34 <br /> PEAK DISCHARGE 52.074 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />