REV11685

• Permit No: C1981048
• IBM Index Class Name: Revision
• Doc Name: TRENCH DESIGN INTO SEDIMENT POND 15-P2
• Type & Sequence: TR6
• Media Type: D
• Archive: No

n
u

RL1N F'FL..DW
THE FULLDWIIVGi PFiC1GFAM WAS DEVEL.OF'F.U }3`i L-if(IE:H LE41)GF::I
TD llERIVE: THE PEAR; FLD4J FRUf•1 A SMALL. blrifEF'SHE.U
USING METHDDS ~'kESENTEU IN SCS Tk-5:5.
INF'U'I" DRAII~lAGE AREA IN /~CfiE:S
^x'88. 4
INPUT AVERFIGE CURVE NLIh11sEk
~7y
INPUT DESIGPJ F'REGIF'I1"A"f IDN IfJ INCtIE';
~.~4
TFIE SCS-TRSS f•IETFiOll IS USED 7U CHLCI..1LAl'E TFIE F'EAt:: kUf•JUFF NY FIkST UEFEkM1fJIhIG
THF_ LAG "f IME F'C1F: l'I-IE 41HTERSI-iED AND '1"I~E TIh1E OF COfJCF_fJ"FkA7I01J.
THE TC IS THEN kELATEll "I"^ A F'EAk: DISCHARGE IN CSM/IfJC:H OF RUI'JfJFF.
L.HG TIME IIV HRS=L"'.E7(S+1> .7

WHERE' L=HYDF:ALJLIC LENI:;TtI f]F 4JAIERSFIE:I:) IfJ FEET
Y= A'JEkAGE LAND f~LDF~E If•J F'EF;CEN"F
,S IS A CUF;VE NL.1MbEk F'AF'iAh1E`IEk GIVErJ }'<Y (1u0i~;CN)-10
DOES LANll Sl_OF'E: NEED TD FE CALCULHTID ('f/hli
?tJ
INPUT HVk:RA[;E:: l_AIVD SLDF'E IN PEFCEI'•FF
._.>.7 i
INF'lJF HYllRHUI._IC LENGTH OF WA7ERSHf:D 1N FEET
"58!:iJ
LAG TIME IN FIRS= ."b'::049~i1
TIME OF CUNCEh1TFF1TI(iN ]:N HRS = .561):541.°;fl4
FkUM TFIE SGS "fRJ/ CFIHFiTS,"FHE F'EAk:: D.ISCFIHRC;E IfJ CShi/INCH = 473.2[iOJ08
DEAF; FI_DW=47~.'<'.`iQ80£~ Cihli If4CH X .4506'<::~ 511.11ARE MILEEi X 1.056U~8`i4 1NCHE?~ F;UN(7f
F'EAF: FLDW = X25. <11481 CFS

•
144