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FLOOD10216
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Last modified
1/26/2010 10:12:24 AM
Creation date
10/5/2006 5:00:43 AM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Basin
Statewide
Title
Method for Estimating the Magnitude and Frequency of Floods at Ungaged Sites on Unregulated Rural Streams in Iowa
Date
1/1/1987
Prepared For
State of Iowa
Prepared By
USGS
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />......1..... <br />> -:" <br />"!".,' . <br /> <br />. <br /> <br />~~ a' 9 "T-;~ h- <br />~$~...".~'O~ <br />~-:~},:~i~~~~~~~;~ii~: <br /> <br />.. <br /> <br />.. <br /> <br />l';--'" <br /> <br />...".><:..".. <br />" ,",q"...,N~"":-"" <br />, ,'. >"".,~:_O"!'""'1'\:_*'" -:,' ~.~ <br /> <br />~ <br /> <br />:iI .-.: ,-.- 9 ,.-,:.7." r~ -I ~ -~ <br />a: ;-- J40 j;. .J.- ~.'" ~."' <br /> <br />/ <br /> <br />,'I:! ,'~l "'_ <br /> <br />. <br /> <br />1 <br /> <br />. , <br /> <br />30,000 <br /> <br /> - <br /> ...... <br /> .....- - <br /> - <br /> ~ <br /> ~ <br /> ~ <br /> ~ <br /> ~ <br /> ~ ,.. <br /> i/ <br /> ./ V <br /> ./ <br /> / V <br />/ <br /> <br />PERCENT CHANCE OF ANNUAL EXCEEDANCE <br />10 <br /> <br /> 0 <br /> Z <br /> 0 <br /> U <br /> OJ <br /> Ul <br /> a:: <br /> OJ 10,000 <br /> Q. <br /> I- <br /> OJ <br /> OJ <br /> u.. <br /> U <br /> lD <br /> :::> <br />..... u <br />00 <br /> z <br /> ~ <br /> OJ <br /> (!) <br /> a:: <br /> <t <br /> :J: <br /> U <br /> Ul <br /> 0 <br /> <br />1,000 <br />I <br /> <br />10 <br />RECURRENCE INTERVAL. IN YEARS <br /> <br />100 <br /> <br />Figure 9.--Flood-frequency curve for Potato Creek. <br />
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