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<br />DRAINAGE CRITERIA MANUAL <br /> <br />RAINFALL <br /> <br /> Table 3-1 . <br />Design Storm Distributions of I-Hour NOAA Atlas Depths <br />Time Percent of I-Hour NOAA Rainfall Atlas De~th <br />Minutes 2-year 5-year 10-year 50-year OO-year <br />5 2.0 2.0 2.0 1.3 1.0 <br />10 4.0 3.7 3.7 3.5 3.0 <br />15 8.4 8.7 8.2 5.0 4.6 <br />20 16.0 15.3 15.0 8.0 8.0 <br />25 25.0 25.0 25.0 15.0 14.0 <br />30 14.0 13.0 12.0 25.0 25.0 <br />35 6.3 5.8 5.6 12.0 14.0 <br />40 5.0 4.4 4.3 8.0 8.0 <br />45 3.0 3.6 3.8 5.0 6.2 <br />50 3.0 3.6 3.2 5.0 5.0 <br />55 3.0 3.0 3.2 3.2 4.0 <br />60 3.0 3.0 3.2 3.2 4.0 <br />65 3.0 3.0 3.2 3.2 4.0 . <br />70 2.0 3.0 3.2 2.4 2.0 <br />75 2.0 2.5 3.2 2.4 2.0 <br />80 2.0 , 2.2 2.5 1.8 1.2 <br />85 2.0 2.2 1.9 1.8 1.2 <br />90 2.0 2.2 1.9 1.4 1.2 <br />95 2.0 2.2 1.9 1.4 1.2 <br />100 2.0 1.5 1.9 1.4 1.2 <br />105 2.0 1.5 1.9 1.4 1.2 <br />110 2.0 1.5 1.9 1.4 1.2 <br />115 1.0 1.5 1.7 1.4 1.2 <br />120 1.0 1.3 1.3 1.4 1.2 <br />Totals 115.7 115.7 115.7 115.6 115.6 <br /> <br />. <br /> <br />5-1-84 <br />