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<br />FLOOD;::' OF 1955 1:"\ THE l)~ITED STATES
<br />
<br />ST A TIOX DA'L'.
<br />
<br />PLATTE RIVER BASIN
<br />
<br />(1) fi-.70S0. SOUTH PLATTE RIVER AT WATERTON, COLO.
<br />
<br />Locatioll.-Lat 39029'18", long 1().j.oO;:}'32". in ::\El/l ;;t>C'. 34. T. 6 H.. R. 69 W., on
<br />left bank 1GS ft dO\Yllstr('um from uridgt.' 011 Statt' Hi~hway 221. half a mile
<br />'.:'ast of 'V~t~.!"tc:~, ;; ::::J('~ ,,,,,',:;t ;:of Lo;,.,-;....,;:. ,:1il\1 fi Illih's up:-;rrptlm from Pium
<br />
<br />Creek.
<br />Drainage area.-:!.G21 ~q mi.
<br />Gage-he-ight record.-Water-stage l't:x:orclcr graph. Datum (If l!:f\V;e b ;).4~..tA:{ ft
<br />abo\"c m(":lU sea leyel, adjustment of HH2.
<br />Db,charge- reeoru.-Stage-discharge relation dl~tint'd by {'llrrf>nt-meter measure-
<br />ments beto\\.' 1,200 efs.
<br />)!axima.-June 15-20. 1965: Discharge, 1,320 ('fs U~O hours June 18 (gage
<br />height. 2.90 ft).
<br />1926 to )iay i965: 5,700 ds Apr. 23. 1942 (gage ht>ight. :>.68 ft).
<br />Helllarks.-Records do not represent storm runoff but inflow to flood area.
<br />
<br />.l[cun rli~char[l(', in eubic feet per second. i965
<br />
<br />Day
<br />.June
<br />
<br />DilJcllarge
<br />15____~ _~ ~_ ___ _ .._ _ ____________________ _________________ 736
<br />16_________~______ ___ __ _., __ ____________________ _ _______ 043
<br />17_____________________________________________________ 1,140
<br />18_____________________________________________________ 1,200
<br />19_____________________________________________________ 1,170
<br />20_____________________________________________________ 1,070
<br />
<br />{2} WEST I"L1nii CREEK N'F;.it."R 8-ED.!LB, <.;;oj!.'J'.
<br />
<br />[Miscellaneous site]
<br />
<br />I..ocation.-Lat 39022'30", long 104057'35", in ~WVt sec. 12, T. 8 S., R. 68 'V.,
<br />4.2 miles upstream from confiuence with East Plum Creek and 4.4 mile~ south
<br />of Sedalia.
<br />Drainage area.-125 sq mi.
<br />.:\Ia:ximum.-June 15-20, 1965: Discharge, 36,800 efs 1500 hours June 16, by
<br />.slope-area measurement of peak flow.
<br />
<br />(I) EAST PLUId CREEK NEAR CASTLE ROCK, COLO.
<br />[::\I1sceIlaneous site)
<br />Locatioll.-Lat 39024'11". long 104052'25", in see. 34, T. 7 S.. R. 67 'V., 2.2 miles
<br />north of Cast1~ Rock and 5.8 milt'~ UI)stream from confiuence with ".est Plum
<br />Creek.
<br />Drainage aren.-108:sq mi.
<br />Maximum.-June 15-20, 1965: Discharge. 126.000 cfs 1600 hours June 16, by
<br />sloI){'.area rne-3surement of peak flo\'\'.
<br />
<br />(t) 8-7096. PLUM CREJ::K NEAR LOUVIERS, COLO.
<br />
<br />Locutioll.-Lat 39029'W", lOllg 1<":>000'01", in SElf" ...ec. 33. T. ~ S., R. 68 W.. (III
<br />right bank at dowu~trE:>am side of bridge on county road from U.S. Highway
<br />No') to lJOuYieZ'S, threE".quarters of a mile northeast of Louders. 1.2 miles down-
<br />stream from Indian Creek. and 7.G miles npstl'E'am from mouth.
<br />Dr-dilUtge area.-$O'-Z sq mi.
<br />Gali!:e-height fp('()rd.-0n!y fiood!'22!'k:-!. Gage d~strGYeG 11:>- tl..od. Ai.l:ituue ot ~aJ.;e
<br />is 5,585 ft (from topographic map).
<br />
<br />.'1
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<br />
<br />SOUTH PLATTE RIVER BASIN, COLORADO, ,IT.INE 1965
<br />
<br />B39
<br />
<br />Discharge record.-Discharge E"stimatoo on basis or Slope-area measurement at
<br />154,000 cfs, two curN"nt-mE'ter measurements, one field estimate, and records
<br />for South Platte River at Littleton.
<br />Maxima.-.June 15-20. 1965: Dischargf>, 154.000 cfs 1830 hours .Tune 16 (gage
<br />beight. about 22.4- ft. from flootlmarks).
<br />1942 to .:\Ia)-' loo;'j; Discharge 7,700 cis August 8, }!)..!;'j (gag(' height', 6.52 ft,
<br />sit.: iiild \IUlllll1lhen in use).
<br />
<br />.1[('01/ di,,'('harfll'. ill ('//l)i(' [I>d PCI- second. 1965
<br />
<br />!Jail
<br />.June 13___________
<br />
<br />Discharge
<br />145
<br />11, 600
<br />1,940
<br />46()
<br />320
<br />2G6
<br />
<br />1~_______________________________ ~_______~____________
<br />
<br />IT______~ .___________,._____~___________________________
<br />18____________________________~________________________
<br />19_____________________________________________________
<br />20_____________________________________________________
<br />
<br />(S) 6-7100, SGU'IR l"LATTE RIVER AT LITTLETON, COLO.
<br />
<br />Loeatioll.-Lut 39c37'10", long 105cOl'lO", in 1\"E1,4 sec. 17, T. 5 S., R. 6S W..
<br />on left bank 200 f€1?'t downstream f.om Crestline AYenUe Bridge at Littleton
<br />and 3.1 miles upstream from Bear Grt'ek.
<br />Drainage II rea.--3.060 sq mi.
<br />Gage-height record.-'Vater-stage recorder graph except 1800 hours June 16 to
<br />2-:100 hours .June 19. Once-daily staff-gag.~ readings used June 18, 19. Peak
<br />stage determined from fioodmark. Datum of gage is 5.304.36 it aoo'"e mean SE"a
<br />level, datum of 1929 (Ieyels by Corps of Engineers).
<br />
<br />DiS('hlll'ge r~eord,-St:lg'C-dis~hat'lte relation deft'I..,l by f:'1I"I"ent-meter llleasU~'
<br />
<br />ments below 5.000 efs. Peak discharge estimated from indirect measurem~nt.s
<br />of peak flow at point 1.6 miles downstream and on Plum Creek at point 12,7
<br />miles upstream. Discharge June 16, 17 estimated on basis of peak discharge
<br />and typical recession.
<br />:Maxima.-June 15-20, 1005: Discharge. about 110,000 cfs 2100 hours June 16
<br />(gage height, 15.45 ft, from f!oodmark).
<br />1941 to May 1005: Discharge, 9,720 ds Apr. 23, 194-2 (gage height. 8.55 ft,
<br />from floodmark, site and datum then in use), from rating curve exten~
<br />aboye 4,800 efs.
<br />
<br />Mean discharge, in cubic feet per sccond,1965
<br />Day Di8c1targe
<br />June 15___ __ _____________ _____________ ______________________ 803
<br />16_____________________________________________________ 10.200
<br />17_____________________________________________________ 7,770
<br />18_____________________________________________________ 2.280
<br />19_____________________________________________________ 1,740
<br />20_____________________________________________________ 1,550
<br />
<br />Hour
<br />
<br />Gage height and discharge at indicated time, 1965
<br />p' I
<br />c~e I Hoor
<br />("') I
<br />ro",.l.!..~;; W-Con.
<br />;;! i~~~::~~~=~=~~~~
<br />
<br />G~' Pis-
<br />hoI t tharge
<br />(feet) (cCs)
<br />5,08 915
<br />5.25 1....
<br />5,88 1,130
<br />
<br />Gage
<br />heigllt
<br />(feet)
<br />
<br />pis-I
<br />"""go
<br />(els)
<br />
<br />I Ju.mIll-
<br />!, r5~~~~:~~~~:~~~~
<br />
<br />Gage
<br />hei.ght
<br />(teet)
<br />
<br />Roo,
<br />
<br />June 1-'
<br />
<br />?<M
<br />-m_j~;';ii5_
<br />0600........._.
<br />
<br />5.(1"':
<br />5.00
<br />5.02
<br />
<br />4,80
<br />
<br />-Dally means computed from data in additioD toligures showu..
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