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FLOOD00403
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Last modified
11/23/2009 10:50:51 AM
Creation date
10/4/2006 9:15:53 PM
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Floodplain Documents
County
Statewide
Title
Hydrology of a Highway Stream Crossing
Date
10/1/1979
Prepared By
USDOT
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br /> <br />e <br /> <br />. <br /> <br />e <br /> <br />,- <br /> <br />~ <br /> <br />e <br /> <br />TABLE 1 <br /> <br />Average Recurrence Interval &lid <br />Average Frequency tor Selected 'ls <br /> <br />1. Selected Q = i 13,000 c.t.s. 17,000 c.r.s. 23,000 c.r.s. 28,000 c.r.s. <br />2. Max. Annual Peaks ! <br />I <br /> > Selected Q I 100 50 <!) 8 <br />3. Average Recurrence <br /> Interval ~yrs.) 10 <!) 50 125 <br /> = 1000 i- 2) <br />4. Average Frequency <br /> per yee:r = (2) . 1000 I 0.10 0.05 0.02 0.008 <br /> . <br />5. Designation of: <br /> Selected Q QlO ~ %0 Q125 <br /> <br />3-7 <br />
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