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<br />11r <br /> <br />DRAINAGE CRITERIA MANUAL <br /> <br /> 24 - hr. <br /> z 90 <br /> S! <br /> ~ 6 - hr. <br /> ~ <br /> Ii. <br /> CJ 3 -hr. <br /> w 80 <br /> a:: <br /> Ii. <br /> ~ <br /> Z <br /> 0 <br /> Ii. <br /> I&. 70 <br /> 0 l-hr <br /> .... <br />e z <br />w <br />CJ <br />a:: <br /> w 60 <br /> Ii. <br /> 15 - min. <br /> EXTRAPOLATED CURVE <br /> 50 <br /> 0 50 100 150 200 250 300 <br /> AREA (SQUARE MILES) <br /> <br />e <br /> <br /> <br /> <br />100 <br /> <br />RAINFALL <br /> <br /> <br />FIGURE 4-1. <br /> <br />. <br /> <br />DEPTH - AREA ADJUSTMENT CURVES <br /> <br />SOURCE: NOAA ATLAS 2, VOL 11[ COLORADO, 1973 <br />5 -1- 84 <br /> <br />URBAN DRAINAGE & FLOOD CONTROL DISTRICT <br />