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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 />1 <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 BHIOOF13.CHO <br /> <br />CAlCllATED {JUT HY~ <br />f1ME TO PEM. PEM A.ATE lJ' RlJrl(fF tinT HYI':lRCGl.AP PEAl. VD.lIlE (f" RlHJFF <br />(HIN) (CF$/S()l1l (CF5l (M) <br /> <br /> <br />9.88 2048.98 <br /> <br />313.49 <br /> <br />8.16 <br /> <br />WIOTH "T SO.. 15. "IN. <br /> <br />WIDTH AT 15- <br /> <br />8.I1IN. KSO'".JS K7S" 45 <br /> <br />....INFALl LOSSES INPUT WI BAStN OATA <br /> <br />MI. P(JNUlIS AlT. .. .40 IN. MAX. II'fIERVIClJS REf. .10 IN. <br />IWIlTRATlOf . 4.38 IN.J~. DECAY.. ,OOl80/5(CI)(l fNIHFL" .59 IIU~. <br /> <br />TOTAl. PRfCIP. .. 3.12 (Ho..R RAIN" 2.70) EXECESS PRECIP. - 2.044 INCHES <br />VQIJ'( OF [xass PRfClp.. 17. ACRf.fEET <br />PENt a.. 308. CFS TIME OF PEAK" 40. HIN. <br />IHFtLT.-4.J8IN/tfi OECAY'".00180 FNINF- .591Hltfi <br />I1AX.PERV.RET.-.40 IN. I4A.X.II'f'.RH.- .10 rN. <br />IJ,O.F,C.D. CI.H' Rl.KfF .sJW.'fSIS EXECUTED l)l DATE AT Tlf'IE <br /> <br />CtHPf:jP( Y'ERSICW IUlIFlED !N JNtJAAv 1985 <br /> <br />PRINT (PT!CW 'fJtlER SELECTED fffi THIS BASIN 15 <br /> <br />BlLU..{AI) G.lCH: lOO.YR: FEHA FlS: 8125/97 (BHIOOFIJ.CHIJaddH&AGC/pondJ <br /> <br />BASIHlO: 59 <br /> <br />BASINC()'IENT' St.eBAS!NID-S9 <br /> <br />AREA r.f BASIN LEt(;TH OF BASIN 015T TO CENTROID IHPERVrOOS AREA SLOPE tMlT lX.RATHJf <br />(S()lJ) (HIl (1m (PCT) (FT/FTl (/'fIN) <br /> <br />.15 .82 <br /> <br />40.00 <br /> <br />5.00 <br /> <br />.0230 <br /> <br />.44 <br /> <br />COCFFICIENT <br />(RfJLEaIHG TIf'E: TO PEAK) <br /> <br />COEFFICIENT <br />(RELATED TO PEAK RATE Cf" Rt.NJFF) <br /> <br />.[)9J .391 <br /> <br />CALctLATED ~IT HYOR(GWlIi <br /> <br />TIME TO PEAK PEN: RATE Cf Rl.H:fF (JIlT HVDRO:iRAP PEAK vct.1J1E OF RlJrIOFF <br />(MIN) (CFSiSl)lIl (CFSI (AF) <br /> <br />10.98 <br /> <br />258.64 <br /> <br />7.79 <br /> <br />1771.~ <br /> <br />"'IDTH..H50- 17.ftIN. '<IIOTHAT75- 9.I'tIN. KSO-.JS K75'".45 <br /> <br />RAIKFAlL LOSSES INPUT WI BASIN DATA <br /> <br />MAX. PERV[()JS RET. .. ..&0 IN. MAX, il1Pf.:RvtOOS RET. .10 IN. <br />IHfILTR.UrCW - 3.70 IN.I~. DECAY - .OOlBOISEC(J() FNINFl".55 IN.I~. <br /> <br />49 <br />
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