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<br /> Table 1
<br /> Comparison of Peak Discharges
<br /> Using Various Kethods
<br /> Rock Rapids, Iowa
<br /> DRAINAGE
<br />FLOODING SOURCE, LOCATION, AREA PEAK DISCHARGE (c.f.s.l
<br />AND METHODOLOGY (so. mil. 10-YR ~ 100-YR 500-YR
<br />ROCK RIVER
<br />Just u/s from Koon Creek
<br />Iowa Regression Equations (USGS, 1993l 778 16,060 28,910 3S,220 N/A
<br />Minn Regression Equations (USGS, 1987l 778 S,860 10,810 13,110 N/A
<br />Between Koon Creek and Tom Creek
<br />Iowa Regression Equations (USGS, 1993) 789 16,230 29,200 35,S60 N/A
<br />Kinn Regression Equations (USGS, 1987) 789 5,920 10,920 13,2S0 N/A
<br />Bulletin 17B (Computed) 789 16,700 35,400 45,700 75,500
<br />Bulletin 17B (Expectedl 789 18,600 46,200 64,900 13S,OOO
<br />Rock Rapids FIS 789 14,120 28,400 36,210 S8,800
<br />Just d/s from Tom Creek
<br />Iowa Regression Equations (USGS, 1993l 8S1 17,160 30,780 37,440 N/A
<br />Minn Regression Equations (USGS, 1987) 8S1 6,2S0 11,530 13,990 N/A
<br />Rock Rapids FIS 8S1 14,700 29,SOO 37,660 61,150
<br />MOON CREEK
<br />At Mouth
<br />Iowa Regression Equations (USGS, 1993l 11 l,lS0 2,440 3,130 N/A
<br />Minn Regression Equations (USGS, 1987) 11 460 910 1,140 N/A
<br />TOM CREEK
<br />At Mouth
<br />Iowa Regression Equations (USGS, 1993l 62 3,380 6,710 8,440 N/A
<br />Minn Regression Equations (USGS, 1987) 62 1,280 2,460 3,030 N/A
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<br />17
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