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<br />PAST FlOOOS
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<br /> Tablo J-'
<br /> HISTORICFLOOOPEAK DISCHAIr,ES AND STAGES AT LYD'iSGAGE
<br /> SL V,1AINCREEK'
<br /> '\\,,;.:i"'-1'>1
<br /> Stage 'Ji sch.)~ge
<br />Yea~ Date H. c.f.s.
<br />1919 Jo' '" ""0 9,400
<br />1121 J" 7 5.55 2,050
<br />1924 J" " 5.00 2,2~0
<br />1930 ~9 " 5.10 2,040
<br />1935 "1"y " 5.50 2,340
<br />1941 J" " 8.06 10,500
<br />"" Jo' " 4.52 2,140
<br />"" J" " 4.58 2,360
<br />1949 J" , 4.95 2,970
<br />1951 ,o,"g J 5.37 5,920
<br />1957 )~ay 7 5.97 3,060
<br />1961 J" J 5.73 2,540
<br />1967 '09 JC 5.80 2,010
<br />1969 l.\..ly 7 6.50 2.900
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<br />Sur:'tlla~y at Historica I Floods
<br />Ea~ly reco~js at flaods In the study roach are fJ""agmented
<br />aoo lacking in detail. Flooding occurred on St. VralnCreek in 1664,
<br />1876,1894,1919,1941,1949,1951, 1957, and 1969. The floods of
<br />June 1864 and !4ay 1876 were seve~e and "'-Jeh ~alley larmlan~ "ilS
<br />flooded. The flood of 31 May 1894 washed away 20 ~nes at Lyons.
<br />"A day or two before Memorial Day In 1894, a steddy rein begon to
<br />fa II wh ieh soon rooched I iood pro;>OJ""tions, and thu entire I owe~ part
<br />of the town was washed a""y. No I i~es were lost. . . . ,. Thi S flood
<br />had an estimated peak dischorge of 9,800 cubic feot po~ second
<br />(c.f .5.) at Lyons, a flood of such magnitudoa as to ha~e I ""ss than
<br />11 I in 50 chance of occur~ence In eny year. South St. 'Irain Croek
<br />contributed the greater part of the flood.
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<br />Flao:JRocords
<br />A continuous r~ord of tlowseot the Lyons gage, located on
<br />fllt> left b-ilnk of St. VrJi~ Creek m1d 0.4 "lie downstroo" from the
<br />canf luenee of North and South St. V~;jin Creeks, is ava I labl e frC\"l
<br />189~ to the presant. Peak f looQ discharges and stages :fur ""'l the
<br />period ot r~cord ~r~ presented in taole 3.
<br />
<br />.1./ Rocorcs frCtTI U. S. GeolO<Jlcdl Survt>y SUrfd'-'" '~dte~ <<'-'Cords dnd
<br /></aterSupplyPaporl680.
<br />. Flow p~rtly rogu I att>d by s,"a II diverSIons above stotion.
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<br />Flood Oescriptions
<br />30-3.1.-:!.u_!"y_I2.I~ - In Inte July IJlg iI series 01 severe
<br />fhunderstor_'Tl$ caused f I"sl> f I oO<li nq "long St. V~a i~ Cnwk. FrCfl1 tho
<br />lyan~ i,,-,corder O<lted 2 AugJSt 1919:
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<br />
<br />"Thohe1lvi"standrrlOstdestrucTIVoCIO\Jdburs1... intne
<br />memory of the olJest Inh~blt"nt visited Lyons on Wednesday
<br />(July 30) between 2:50 and 3:45 p.'>1. Ittookoutdll the
<br />bridgosonthe:,orthSt.Vr"inforabOJt)milesupilnd
<br />, miles <ja"nst~eam. ne Longmont ,jn'j Lyons ,."tor ",,,,ins up
<br />t:,e C('ln~on "on: torn rut in ':!,jny plJco$ . . . 'Ili lee of r().~J
<br />w.,~" torn out ~ long t."'" n;;rrow c'""yon.
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