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FLOOD02246
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FLOOD02246
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Last modified
1/25/2010 6:23:53 PM
Creation date
10/4/2006 10:43:42 PM
Metadata
Fields
Template:
Floodplain Documents
County
Boulder
Community
Boulder
Stream Name
Bullhead Gulch
Basin
South Platte
Title
Bullhead Gulch Hydrology Report
Date
8/22/1997
Prepared For
FEMA
Prepared By
Taggart Engineering Associates, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />August 25.1997 BHIOOFI3.CHO <br /> <br />...... STIlltl NO." I .... <br /> <br />OATE (Jl. RHLRH PERIOO .. IOOYEAR <br /> <br /> INCR[H[NT TOTAl IT"'" IHCRE/'lNT TOTAl 1- <br />TIll RAINFAll EXCESS "''''''''''''' W. RAHIFAll nCESS "'- <br />(HIN.l (iN) PREC!P (crs) OHM.) (iN) PRECIP (efS) <br />o. .00 .000 o. 60. .11 058 83, <br />5. .03 000 o. 65, .11 ,05' 74, <br />10. .08 .000 o. TO, .05 005 60, . <br />15, .12 ,002 0, TS. .05 .005 47. <br />20. .22 004 1. 80, .03 ,001 36, <br />25. 38 .023 4, 85. 03 .001 28. <br />30. 68 ,50' Bl. 90. 03 .001 21. <br />35 .38 .319 132. 95. 03 .001 13, <br />40. 22 .161 135. 100. .03 .001 8. <br />45. .17 .115 124- 105. .03 .001 5. <br />50. 14 .084 110. 110. 03 .001 4. <br />55. .11 .058 95, 115. .03 001 2. <br /> TOTAl PRECfP. . 3.12 (l.tO.Jt RAIN. 2.70) EXECESSPRECIP. .. 1.508 1"",,5 <br /> va.lIE~EXCESSPRECIP.. 7, ACRE-FEET <br /> PEAK Q . 135.CfI TII"l fJ PEAK . 40. HIN. <br /> INFfLT,-4.)QIN/I<< DECAY" .00180 11mI' . .60 IN/~ <br /> KAX.PERV.R[T.- .40 IN. IW.I~.RET." .10 IN. <br /> RATICfrW. FCItU.A C . ,48 <br /> I- 4.4 IHQt:S/IQ.R <br /> A- 58.2 ACRES <br /> Q - 124.CFS <br />U.O.F.C.D. CIJfl Rl..H:fF ANALYSIS EXECUTED ~ OATE AT TU€ <br /> <br /> <br />ClIft/PC VERSI(Jt~IFIED IN JAHUARY 1985 <br /> <br />PRINT ()ITI~ tUfiER SELECTED FCR THIS BASIN [S <br /> <br />BU..llOll GlLOi: IOO-YR: FEHA FIS: 9/25/97 (BHlOOfIJ.OHladltiUG:/poodJ <br /> <br />BASINID: 37 <br /> <br />.. BASIN CCJKHT: SlMASIN II> 37 <br /> <br />AREA rs BASIN LENGTH (J' BASIN DIST TO CENTROID II1PERYIWS AREA SlCFE LNIT (lRAJI(1I <br />{Sl)II> (HI) (HI) (pen (FT/FT) (HIN) <br /> <br />.09 <br /> <br />.41 <br /> <br />.15 <br /> <br />2.00 <br /> <br />.0330 <br /> <br />5,00 <br /> <br />OXFFICIENT CClFFICIENT <br />(REFLECTING TUE TO PEN:.> (RELATED TO PEN( RATE rf' RtJr(EF) <br /> <br />156 <br /> <br />.233 <br /> <br />CAlCLlATED lttIT HYORCXiAAPH <br /> <br />mE TO PEN: TIME OF CrKENTRAT!Ctt PEAK RATE rf' RLNJFF lJrtIT HYOROOWIi PEAA. VCll.lE IF lUc:Jf <br />(!'tlN) (HIN) (CFS/S()1() (CFSl (Ai) <br /> <br />6.63 <br /> <br />22.00 <br /> <br />2153_34 <br /> <br />194.70 <br /> <br />4,80 <br /> <br />-. OOTE : THE TIME TO PEN:. lS CAlCll.ATEO BASED {)t THE mE OF Ccwa:NTRATICtt PROYICE:D BY TlI: l.5ER. <br />REPlACING TIt: ()IE CCI1PUTED BY Clt1PO (Tp. 8.05) <br /> <br />WIDTH AT SO.. 14. HlN. WIDTH AT 7S - <br /> <br />H1N K.50'".29 K7S'"_39 <br /> <br />RAINFAlL lOSSES INPUT loll BASIN DATA <br /> <br />K6.X. PERV!OOS REf. - .40 IN. i'\.\X. IMPERV!OOS RH. 10 [N. <br />!NFILTAATICfi '" 4.50 IN./~. D€CAY'" OOI80/SECOO FNIHFL '" .60 IN./~. <br /> <br />TIME lJtIT <br />",ORQGRAPH <br /> <br />mE am <br />HYllROGRAPH <br /> <br />TIME lJrtIT <br />"''''''''''''' <br /> <br />o. O. <br />5. 180 <br />10. 160. <br />15. 1Il <br />BASIN:O: 37 <br /> <br />20. 77 40. 19 <br />25 54 45. t4. <br />30. 39 50. 10. <br />35. 27 55 o. <br />BASlN CIlt1ENT SIJ3BASINID-37 <br /> <br />-ST(JlJ1I(}.'" <br /> <br />DATE CA RETURN PERICO '" lOOYEAA <br /> <br />INCRE/'(NT TOTAl STCRI <br />TIME RAINFAlL EXCESS HYlWliRAPH <br /> <br />INCRO(NT TOT.Al STlltl <br />TIME RAINFAlL EXCESS HY[J(GWIH <br /> <br />28 <br />
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