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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 />4 <br /> <br /> <br />I <br /> <br />August 25,1997 BHIOOFI3.CHO <br /> <br />I <br /> <br />(HIN) <br /> <br />01[M) <br /> <br /><CF$/Sl)tll <br />2031.39 <br /> <br />(CFSl <br /> <br />"" <br /> <br />I." <br /> <br />It 0<) <br /> <br />52.97 <br /> <br />1.65 <br /> <br />I <br /> <br />u. I()T[ It{ TlHE TO PEAK IS CAlC\J.ATED BASED ()j 1l( fJl't: OF COCENTRATllJrl PROVIDEO BY TIE USER. <br />REPlACING THE CJrIE CCJ1PIJTED BY CUflD (lp.. 4.64) <br /> <br />I <br /> <br />WIDTH AT 50.. 15. HIN. WIDTH AT 15" B. I1IN. GO.. .24 K75" .J3 <br />RAiNfALL LOSSES INPUT WI BASIN OATA <br /> <br />PW:. Pf:RV!(),6 RH. .. .40 IN. ti'.X, UftRVICUS REI. .10 IN. <br />UFILTRATI()j 0& 4.50 (N.flit DECAY" .OOl80/SECCH) FNIHFl" .60 [N./If!.. <br /> <br />I <br /> <br />TIME <br /> <br />LOIT <br />HYDI!OOW'Il <br /> <br />TII"{ LNIT <br />HY""""'" <br /> <br />TIME <br /> <br />LOIT <br />HYDI!OOW'Il <br /> <br />I <br /> <br />o. <br />I. <br />10. <br />IS. <br /> <br />o. <br />61. <br />49. . <br />37. . <br />BASIN JO; 333 <br /> <br />20. 21. <br />25. 21. <br />30. 17. <br />35. 13. <br />.. BASIN CCtKHT: <br /> <br />40. <br />4S. <br />SO, <br />o. <br />SlBBASIN 10- <br /> <br />10. <br />,. <br />o. <br />o. <br />3 south half FtW) bols1n 3 to Lou1sv11le pond3 <br /> <br />I <br /> <br />-ST(JlHt<<).- <br /> <br />- <br /> <br />DATE lJt ~ PERIOO .. lOOYEAR <br /> <br />I <br /> <br />I <br /> <br /> INCR[P€HT TOT.... ST"" INCREMENT TOT.... ST"" <br />TIME RAiNfAll EXCESS HYDI!OOW'Il TIME RAiNfALL EXcrSS HYDI!OOW'Il <br />(HIN.) (IN) PRECIP {CFSl (HIN.) (IN) PRECIP (CFS> <br /> . <br />o. 0<) 0<)0 o. 55, .11 ,065 36. . <br />S. .03 .000 o. 60. ,11 ,065 32. <br />10. .08 .0<)1 o. 65. .11 .065 29. <br />IS. .12 .020 I. 70. .OS ,012 22, . <br />20. 22 .036 3. 75. ,OS .012 14. <br />25. .38 .076 7 80. .03 .005 9, <br />30. .68 .614 43 85. .03 .005 7. <br />35. 38 .321 54. 90, ,03 .005 S. <br />40. .22 .168 52. 95. .03 .005 3, <br />45 .17 .122 47. 100, .03 .OOS 3. <br />50. 14 .091 42 105. .03 .OOS 2. <br /> <br />I <br /> <br />I <br /> <br />TOT.4lPRECIP.- 3.12 (l.I-O.IlRAIN- 2,70) EXECESSPRECIP. -1.721 lNCI-ES <br />va.tK: OF EXCESS PREelP .. J. ACRE-FEET <br />PEN:. Q" 54. CFS TIM[ ri' PEAK - 35. MIN. <br />lNFllT.. 4.50 IN/~ DECAY - ,00180 FNINF..60 IN/~ <br />.'W.PERV.RET.. .40 IN. .'W 1"".RET... .10 IN. <br /> <br />I <br /> <br />RATlCHAl FCM..lA C .. .55 <br />I . 5.2 IN(}(S/t-O..R <br />A . 19.8 ~CRES <br />a.. 57.CFS <br />U.D.F.C.D. C1..W Rl..JrO'F AHAlVSlS EXECUTED IJrl DATE AT TIME <br /> <br />I <br /> <br />a.HPE/PC '/ERSIll4 i'OllFIED IN JAPtJAAV 1985 <br /> <br />I <br /> <br />Plwrr ~TlCJ4 'lltEER SELECTED F()l. THIS BASIN IS <br /> <br />811.LHEAO Gl.l.~: lOO.fF!: FE~ F1S: 8/25197 (BHIOOFl3.CHlJadlJ1&AGC/DOt\d3 <br /> <br />BASINlD: <br /> <br />BASIN CiJ'tlENT SL8BASlN lo- 4 <br /> <br />I <br /> <br />AREA OF BASIN LENGTH Of BASIH OIST TO CENTROID II'FERVlM AREA SLOPE \.NIT ll.RATICW <br />(S/)Ill (Mil (MIl (PeT) (FT/FT) (MIN) <br /> <br />09 <br /> <br />41 <br /> <br />15 <br /> <br />7.18 <br /> <br />.0260 <br /> <br />500 <br /> <br />I <br /> <br />CCEFFlCIENT COEFFICIENT <br />(REFLECTING TIl'l TO Pf:AIO (RELATED TO PEAK RATE OF RIJIOFF) <br /> <br />136 <br /> <br />.208 <br /> <br />I <br /> <br />CAlCll.ATED lMlT fffDRCXiRAPH <br /> <br />TIHE fO PEAl:: Tlt1E JF ":CHCEHTRATlIJrl PEAK ~TE Of ll.lJI()fF LNlT HYoo.()';llAPtl PEAK :jQlI1E Cf RlNJFF <br />(MIN) (MIN) tCFSIS/)I[) (CFS) (M) <br /> <br />I <br /> <br />8.72 <br /> <br />36.00 <br /> <br />1284.23 <br /> <br />1ll,73 <br /> <br />4.64 <br /> <br />.....NOTE <br /> <br />rK: TIME ra Pf:AK 15 CAlQJ..ATED BASED CJrt THE TIME OF CCWCENTRAT!CtI PROVIO€O BY me USER. <br />REPlACltCi THE CJrtE CQf>UTED 81' awo (TP- 7.89) <br />
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