1 RETURN INTENSITY PERIOD RAINFALL 5 56.42 10 65.34 20 71.80 30 76.64 50 82.51 80 87.92 1 RAINFALL HYETOGRAPH TIME 5-YR 10-YR 20-YR 30-YR 50-YR 80-YR .1 .41 .48 .52 .56 .60 .64 .2 1.45 1.68 1.85 1.97 2.12 2.26 .3 3.67 4.25 4.67 4.99 5.37 5.72 .4 6.49 7.52 8.26 8.82 9.50 10.12 .5 8.08 9.36 10.29 10.98 11.82 12.60 .6 7.31 8.46 9.30 9.92 10.69 11.39 .7 7.53 8.72 9.59 10.23 11.02 11.74 .8 7.07 8.19 9.00 9.60 10.34 11.02 .9 7.59 8.79 9.66 10.31 11.10 11.83 1.0 6.81 7.89 8.67 9.25 9.96 10.61 1 JK-1 1 ( NA ) STRIP NUMBER = 3 ( DT ) UNIT TIME OF UNIT-GRAPH(HOUR) = .10 ( XL ) BASIN-LENGTH(KM) = .99 (COFF) RUNOFF COEFFICIENT = .78 (BET ) INITIAL CONCENTRATION TIME = .00 ZONING LENGTH AREA(I) ACCUMU. WIDTH TIME NUMBER (KM) (SQ.KM) AREA(I) (KM) (HR) 1 .14 .190 .190 1.357 .003 2 .50 .400 .590 .800 .028 3 .35 .100 .690 .286 .019 1 CONCENTRATED LENGTH AND AREA TIME LENGTH AREA (HOUR) (KM) (SQ.KM) .1 .99 .690 C1 = .996 C2 = .004 1 AREA-ROUTING UNIT-HYDROGRAPH TIME AREA I=2.7780 (I1 + I2)/2 C1 * (1) C2 * (4) (2) + (3) (HR.) (KM**2) * AREA = (1) = (2) = (3) = (4) .1 .690 1.917 .958 .955 .000 .9547 .2 .000 .000 .958 .955 .004 .9584 .3 .000 .000 .000 .000 .004 .0037 .4 .000 .000 .000 .000 .000 .0000 .5 .000 .000 .000 .000 .000 .0000 .6 .000 .000 .000 .000 .000 .0000 .7 .000 .000 .000 .000 .000 .0000 .8 .000 .000 .000 .000 .000 .0000 .9 .000 .000 .000 .000 .000 .0000 1.0 .000 .000 .000 .000 .000 .0000 1.1 .000 .000 .000 .000 .000 .0000 1.2 .000 .000 .000 .000 .000 .0000 1.3 .000 .000 .000 .000 .000 .0000 1.4 .000 .000 .000 .000 .000 .0000 1.5 .000 .000 .000 .000 .000 .0000 1.6 .000 .000 .000 .000 .000 .0000 1.7 .000 .000 .000 .000 .000 .0000 1.8 .000 .000 .000 .000 .000 .0000 1.9 .000 .000 .000 .000 .000 .0000 2.0 .000 .000 .000 .000 .000 .0000 2.1 .000 .000 .000 .000 .000 .0000 2.2 .000 .000 .000 .000 .000 .0000 2.3 .000 .000 .000 .000 .000 .0000 2.4 .000 .000 .000 .000 .000 .0000 2.5 .000 .000 .000 .000 .000 .0000 2.6 .000 .000 .000 .000 .000 .0000 2.7 .000 .000 .000 .000 .000 .0000 2.8 .000 .000 .000 .000 .000 .0000 2.9 .000 .000 .000 .000 .000 .0000 3.0 .000 .000 .000 .000 .000 .0000 3.1 .000 .000 .000 .000 .000 .0000 3.2 .000 .000 .000 .000 .000 .0000 3.3 .000 .000 .000 .000 .000 .0000 3.4 .000 .000 .000 .000 .000 .0000 3.5 .000 .000 .000 .000 .000 .0000 3.6 .000 .000 .000 .000 .000 .0000 3.7 .000 .000 .000 .000 .000 .0000 3.8 .000 .000 .000 .000 .000 .0000 3.9 .000 .000 .000 .000 .000 .0000 4.0 .000 .000 .000 .000 .000 .0000 4.1 .000 .000 .000 .000 .000 .0000 4.2 .000 .000 .000 .000 .000 .0000 4.3 .000 .000 .000 .000 .000 .0000 4.4 .000 .000 .000 .000 .000 .0000 4.5 .000 .000 .000 .000 .000 .0000 4.6 .000 .000 .000 .000 .000 .0000 4.7 .000 .000 .000 .000 .000 .0000 4.8 .000 .000 .000 .000 .000 .0000 4.9 .000 .000 .000 .000 .000 .0000 5.0 .000 .000 .000 .000 .000 .0000 1 FLOOD HYDROGRAPH BY AREA-ROUTING UNIT-HYDROGRAPH METHOD BASIN AREA = .69SQ.KM BASIN LENGTH = .99KM TIME 5-YR 10-YR 20-YR 30-YR 50-YR 80-YR .1 .31 .36 .39 .42 .45 .48 .2 1.39 1.61 1.77 1.89 2.03 2.16 .3 3.82 4.42 4.86 5.19 5.59 5.95 .4 7.59 8.79 9.65 10.30 11.09 11.82 .5 10.89 12.61 13.85 14.79 15.92 16.96 .6 11.50 13.32 14.64 15.63 16.82 17.93 .7 11.09 12.85 14.12 15.07 16.22 17.29 .8 10.92 12.64 13.89 14.83 15.96 17.01 .9 10.96 12.69 13.94 14.88 16.02 17.08 1.0 5.69 6.59 7.25 7.73 8.33 8.87 1.1 .02 .03 .03 .03 .03 .03 1.2 .00 .00 .00 .00 .00 .00 1.3 .00 .00 .00 .00 .00 .00 1.4 .00 .00 .00 .00 .00 .00 1.5 .00 .00 .00 .00 .00 .00 1.6 .00 .00 .00 .00 .00 .00 1.7 .00 .00 .00 .00 .00 .00 1.8 .00 .00 .00 .00 .00 .00 1.9 .00 .00 .00 .00 .00 .00 2.0 .00 .00 .00 .00 .00 .00 2.1 .00 .00 .00 .00 .00 .00 2.2 .00 .00 .00 .00 .00 .00 2.3 .00 .00 .00 .00 .00 .00 2.4 .00 .00 .00 .00 .00 .00 2.5 .00 .00 .00 .00 .00 .00 2.6 .00 .00 .00 .00 .00 .00 2.7 .00 .00 .00 .00 .00 .00 2.8 .00 .00 .00 .00 .00 .00 2.9 .00 .00 .00 .00 .00 .00 3.0 .00 .00 .00 .00 .00 .00 3.1 .00 .00 .00 .00 .00 .00 3.2 .00 .00 .00 .00 .00 .00 3.3 .00 .00 .00 .00 .00 .00 3.4 .00 .00 .00 .00 .00 .00 3.5 .00 .00 .00 .00 .00 .00 3.6 .00 .00 .00 .00 .00 .00 3.7 .00 .00 .00 .00 .00 .00 3.8 .00 .00 .00 .00 .00 .00 3.9 .00 .00 .00 .00 .00 .00 4.0 .00 .00 .00 .00 .00 .00 4.1 .00 .00 .00 .00 .00 .00 4.2 .00 .00 .00 .00 .00 .00 4.3 .00 .00 .00 .00 .00 .00 4.4 .00 .00 .00 .00 .00 .00 4.5 .00 .00 .00 .00 .00 .00 4.6 .00 .00 .00 .00 .00 .00 4.7 .00 .00 .00 .00 .00 .00 4.8 .00 .00 .00 .00 .00 .00 4.9 .00 .00 .00 .00 .00 .00 5.0 .00 .00 .00 .00 .00 .00 1 RETURN INTENSITY PERIOD RAINFALL 5 56.42 10 65.34 20 71.80 30 76.64 50 82.51 80 87.92 1 RAINFALL HYETOGRAPH TIME 5-YR 10-YR 20-YR 30-YR 50-YR 80-YR .1 .41 .48 .52 .56 .60 .64 .2 1.45 1.68 1.85 1.97 2.12 2.26 .3 3.67 4.25 4.67 4.99 5.37 5.72 .4 6.49 7.52 8.26 8.82 9.50 10.12 .5 8.08 9.36 10.29 10.98 11.82 12.60 .6 7.31 8.46 9.30 9.92 10.69 11.39 .7 7.53 8.72 9.59 10.23 11.02 11.74 .8 7.07 8.19 9.00 9.60 10.34 11.02 .9 7.59 8.79 9.66 10.31 11.10 11.83 1.0 6.81 7.89 8.67 9.25 9.96 10.61 1 JK-2 1 ( NA ) STRIP NUMBER = 4 ( DT ) UNIT TIME OF UNIT-GRAPH(HOUR) = .10 ( XL ) BASIN-LENGTH(KM) = 1.64 (COFF) RUNOFF COEFFICIENT = .77 (BET ) INITIAL CONCENTRATION TIME = .00 ZONING LENGTH AREA(I) ACCUMU. WIDTH TIME NUMBER (KM) (SQ.KM) AREA(I) (KM) (HR) 1 .14 .250 .250 1.786 .003 2 .50 .550 .800 1.100 .028 3 .50 .310 1.110 .620 .038 4 .50 .120 1.230 .240 .033 1 CONCENTRATED LENGTH AND AREA TIME LENGTH AREA (HOUR) (KM) (SQ.KM) .1 1.62 1.226 .2 1.64 .004 C1 = .662 C2 = .338 1 AREA-ROUTING UNIT-HYDROGRAPH TIME AREA I=2.7780 (I1 + I2)/2 C1 * (1) C2 * (4) (2) + (3) (HR.) (KM**2) * AREA = (1) = (2) = (3) = (4) .1 1.226 3.405 1.702 1.126 .000 1.1262 .2 .004 .012 1.708 1.130 .381 1.5114 .3 .000 .000 .006 .004 .512 .5155 .4 .000 .000 .000 .000 .175 .1745 .5 .000 .000 .000 .000 .059 .0591 .6 .000 .000 .000 .000 .020 .0200 .7 .000 .000 .000 .000 .007 .0068 .8 .000 .000 .000 .000 .002 .0023 .9 .000 .000 .000 .000 .001 .0008 1.0 .000 .000 .000 .000 .000 .0003 1.1 .000 .000 .000 .000 .000 .0001 1.2 .000 .000 .000 .000 .000 .0000 1.3 .000 .000 .000 .000 .000 .0000 1.4 .000 .000 .000 .000 .000 .0000 1.5 .000 .000 .000 .000 .000 .0000 1.6 .000 .000 .000 .000 .000 .0000 1.7 .000 .000 .000 .000 .000 .0000 1.8 .000 .000 .000 .000 .000 .0000 1.9 .000 .000 .000 .000 .000 .0000 2.0 .000 .000 .000 .000 .000 .0000 2.1 .000 .000 .000 .000 .000 .0000 2.2 .000 .000 .000 .000 .000 .0000 2.3 .000 .000 .000 .000 .000 .0000 2.4 .000 .000 .000 .000 .000 .0000 2.5 .000 .000 .000 .000 .000 .0000 2.6 .000 .000 .000 .000 .000 .0000 2.7 .000 .000 .000 .000 .000 .0000 2.8 .000 .000 .000 .000 .000 .0000 2.9 .000 .000 .000 .000 .000 .0000 3.0 .000 .000 .000 .000 .000 .0000 3.1 .000 .000 .000 .000 .000 .0000 3.2 .000 .000 .000 .000 .000 .0000 3.3 .000 .000 .000 .000 .000 .0000 3.4 .000 .000 .000 .000 .000 .0000 3.5 .000 .000 .000 .000 .000 .0000 3.6 .000 .000 .000 .000 .000 .0000 3.7 .000 .000 .000 .000 .000 .0000 3.8 .000 .000 .000 .000 .000 .0000 3.9 .000 .000 .000 .000 .000 .0000 4.0 .000 .000 .000 .000 .000 .0000 4.1 .000 .000 .000 .000 .000 .0000 4.2 .000 .000 .000 .000 .000 .0000 4.3 .000 .000 .000 .000 .000 .0000 4.4 .000 .000 .000 .000 .000 .0000 4.5 .000 .000 .000 .000 .000 .0000 4.6 .000 .000 .000 .000 .000 .0000 4.7 .000 .000 .000 .000 .000 .0000 4.8 .000 .000 .000 .000 .000 .0000 4.9 .000 .000 .000 .000 .000 .0000 5.0 .000 .000 .000 .000 .000 .0000 1 FLOOD HYDROGRAPH BY AREA-ROUTING UNIT-HYDROGRAPH METHOD BASIN AREA = 1.23SQ.KM BASIN LENGTH = 1.64KM TIME 5-YR 10-YR 20-YR 30-YR 50-YR 80-YR .1 .36 .41 .45 .49 .52 .56 .2 1.74 2.01 2.21 2.36 2.54 2.71 .3 5.04 5.83 6.41 6.84 7.36 7.85 .4 10.54 12.20 13.41 14.31 15.41 16.42 .5 16.24 18.81 20.67 22.06 23.75 25.31 .6 18.89 21.88 24.04 25.66 27.62 29.43 .7 19.31 22.36 24.57 26.23 28.24 30.09 .8 19.24 22.29 24.49 26.14 28.14 29.99 .9 19.27 22.32 24.52 26.17 28.18 30.03 1.0 13.15 15.23 16.73 17.86 19.23 20.49 1.1 4.47 5.18 5.69 6.08 6.54 6.97 1.2 1.51 1.75 1.93 2.06 2.21 2.36 1.3 .51 .59 .65 .70 .75 .80 1.4 .17 .20 .22 .24 .25 .27 1.5 .06 .07 .07 .08 .09 .09 1.6 .02 .02 .03 .03 .03 .03 1.7 .01 .01 .01 .01 .01 .01 1.8 .00 .00 .00 .00 .00 .00 1.9 .00 .00 .00 .00 .00 .00 2.0 .00 .00 .00 .00 .00 .00 2.1 .00 .00 .00 .00 .00 .00 2.2 .00 .00 .00 .00 .00 .00 2.3 .00 .00 .00 .00 .00 .00 2.4 .00 .00 .00 .00 .00 .00 2.5 .00 .00 .00 .00 .00 .00 2.6 .00 .00 .00 .00 .00 .00 2.7 .00 .00 .00 .00 .00 .00 2.8 .00 .00 .00 .00 .00 .00 2.9 .00 .00 .00 .00 .00 .00 3.0 .00 .00 .00 .00 .00 .00 3.1 .00 .00 .00 .00 .00 .00 3.2 .00 .00 .00 .00 .00 .00 3.3 .00 .00 .00 .00 .00 .00 3.4 .00 .00 .00 .00 .00 .00 3.5 .00 .00 .00 .00 .00 .00 3.6 .00 .00 .00 .00 .00 .00 3.7 .00 .00 .00 .00 .00 .00 3.8 .00 .00 .00 .00 .00 .00 3.9 .00 .00 .00 .00 .00 .00 4.0 .00 .00 .00 .00 .00 .00 4.1 .00 .00 .00 .00 .00 .00 4.2 .00 .00 .00 .00 .00 .00 4.3 .00 .00 .00 .00 .00 .00 4.4 .00 .00 .00 .00 .00 .00 4.5 .00 .00 .00 .00 .00 .00 4.6 .00 .00 .00 .00 .00 .00 4.7 .00 .00 .00 .00 .00 .00 4.8 .00 .00 .00 .00 .00 .00 4.9 .00 .00 .00 .00 .00 .00 5.0 .00 .00 .00 .00 .00 .00