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PERMFILE113314
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PERMFILE113314
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Entry Properties
Last modified
8/24/2016 10:09:29 PM
Creation date
11/24/2007 10:26:40 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
Permit File
Doc Date
7/30/2007
Doc Name
Collection/Diversion Ditches and Culverts Design Parameters
Section_Exhibit Name
Section 2.05.3(3) Attachment 2.05.3(3)-1
Media Type
D
Archive
Yes
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• Location: DITCH C11 Checked: Date: <br />• <br />• <br />Developed <br />1. Data: <br />Drainage area :....................A = 62.4000 Acres <br />Runoff Curve Number :.............CN = 80 <br />Time of Concentration:...........Tc = 0.74 <br />Storm Type :....................... = II <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.20 percent of A <br />0.1248 Acres <br />2. Frequency ........................yr = 100 <br />3. Rainfall,P(24-hour) ..............in = 3.00 <br />4. Initial abstraction, la............ = 0.5000 <br />5. Compute lalP ....................... = 0.1667 <br />6. Unit peak discharge, qu......csm/in = 404.73 <br />7. Runoff,Q .........................in = 1.2500 <br />8. Pond & swap adjustment factor,...Fp = 0.97 <br />9. Peak Discharge,gp ...............cfs = 47.8471 <br />REVISED MARCH 2006 <br />Attachment 2.05.3(3)-1-24 <br />
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