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PERMFILE133929
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Entry Properties
Last modified
8/24/2016 10:34:37 PM
Creation date
11/26/2007 1:45:36 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
Permit File
Doc Date
3/25/2003
Doc Name
Collection/Diversion Ditches and Culverts Design Parameters
Section_Exhibit Name
NH2 Section 2.05.3(3) Attachment 2.05.3(3)-1
Media Type
D
Archive
Yes
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• DITCH C-7 BASIN 10 <br />Time of Concentration (SCS Method) 08/07/1999 <br />Curve Number: 87 <br />Length of Flow (ft): 448.11 <br />Average Land Slope (): 12.9 <br />Time of Concentration (hrs): 0.06 <br />08/07/1999 <br />Graphical Peak Discharge <br />Project: AMENDMENT By: GL Date: 08/07/99 <br />Location: DITCH C-7 Checked: Date: <br />Developed <br />1. Data: <br />Drainage area :....................A = 0.6000 Acres <br />Runoff Curve Number :.............CN = 87 <br />• Time of Concentration <br />Pond and swamp area <br />2. Frequency .................. <br />3. Rainfall,P(24-hour)..... <br />4. Initial abstraction, la... <br />...........Tc = 0.06 <br />s spread throughout watershed. = 1.00 percent of A <br />0.0060 Acres <br />......yr = 10 <br />.........in = 2.00 <br />......... = 0.2989 <br />6. Unit peak discharge, qu......csm/in = 987.64 <br />7. Runoff,Q .........................in = 0.9056 <br />8. Pond & swap adjustment factor,...Fp = 0.87 <br />9. Peak Discharge,gp ...............cfs = 0.7295 <br />• IReviseoln ao-oz~ Attachment 2.05.3(3)-1- 14 <br />
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