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FLOOD00804
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Last modified
11/23/2009 1:21:28 PM
Creation date
10/4/2006 9:29:08 PM
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Template:
Floodplain Documents
County
Elbert
Community
Kiowa
Stream Name
South Platte River
Title
Final Drainage and Flood Hazard Study for Fawn Valley
Date
5/1/1995
Prepared For
Kiowa
Prepared By
JR Engineering, Ltd.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Quick TR-55 Version: 5.46 SIN: <br /> <br />Page 1 <br />Return Frequency: 100 years <br /> <br />TR-55 TABULAR HYDROGRAPH METHOD <br />Type II. Distribution <br />(24 hr. Duration Storm) <br /> <br />Executed: <br />Watershed file: --> <br />Hydrograph file: --> <br /> <br />05-22-1995 17:06:49 <br />H:\PONDPACK\FILES\869600TR.MOP <br />H:\PONDPACK\FILES\869600H.HYD <br /> <br />FAWN VALLEY FDR <br /> <br />>>>> Input Parameters Used to Compute Hydrograph <<<< <br /> <br />I <br /> <br />------------------------------------------------------------------------------- <br />I TA-1 1098.00 69.0 1.25 0.00 4.20 I 1.40 1.21 .21 <br />TA-2 37.50 75.0 0.50 0.00 4.20 1.82 1.16 .16 <br />------------------------------------------------------------------------------- <br />* Travel time from subarea outfall to composite watershed outfall point. <br />I I -- Subarea where user specified interpolation between Ialp tables. <br /> <br /> <br />I <br />I <br />I <br /> <br />I Subarea <br />Description <br /> <br />AREA <br />(acres) <br /> <br />CN <br /> <br />Tc <br />(hrs) <br /> <br />* Tt <br />(hrs) <br /> <br />Precip. <br />(in) <br /> <br />Runoff <br />(in) <br /> <br />Ialp <br />inputlused <br /> <br />Total area = 1135.50 acres <br />Peak discharge = <br /> <br />or 1.7742 sq.mi <br />686 cfs <br /> <br />WARNING: Drainage areas of two or more subareas <br />differ by a factor of 5 or greater. <br /> <br />>>>> Computer Modifications of Input Parameters <<<<< <br /> <br />I Subarea <br />Description <br /> <br />Input <br />Tc <br />(hr) <br /> <br />Values <br />* Tt <br />(hr) <br /> <br />Rounded <br />Tc <br />(hr) <br /> <br />Values <br />* Tt <br />(hr) <br /> <br />Ialp <br />Interpolated <br />(Yes/No) <br /> <br />Ialp <br />Messages <br /> <br />ITA-1 <br />TA-2 <br /> <br />1.13 <br />0.51 <br /> <br />0.00 <br />0.00 <br /> <br />1. 25 <br />0.50 <br /> <br />0.00 <br />0.00 <br /> <br />Yes <br />Yes <br /> <br />I * Travel time from subarea outfall to composite watershed outfall point. <br /> <br /> <br /> <br />I <br />I <br />I <br />I <br />
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