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<br />PAST FlOOOS
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<br /> Table J-'
<br /> HISTORICFLOOOPEAK DISCHArr,ES AND STAGES AT LYD'iSGAGE
<br /> SL V,1AINCREEK'
<br /> '\\";.:i,,,,'>1
<br /> Stago ':11 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 />19.30 ~9 " 5.10 2,040
<br />19.35 "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 ,0,"9 J 5.37 5,920
<br />1957 )~"Y 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
<br />
<br />Sur:'tll,,~y 01 Histo~ica I Floods
<br />Ea~ly records of floods in the study roach are fragmented
<br />aoo lackl ng ill det., i I. FI cod ing occurred on St, V~" in Creek in 1664,
<br />1876,1894,1919,1941,1949,1951, 1957, and 1969. The floods of
<br />J~ne t864 and 14"y 1876 were 5eve~e and ""ch val ley la~mt"n~ w"s
<br />flooded. The flood of 31 MQY 1894 washed dway 20 ~nes at Lyons.
<br />"A day or two befo~e Memorial Day In 1894, a ste"dy ra In begon to
<br />fall loin icn soon rooched flood pro;>ortions, and tha entire I owe~ part
<br />of the tOwn was washed away. No I ivas we~e lost. . . . ,. Thi 5 llood
<br />had an estimated peak discho~ge of 9,800 cubic foot po~ second
<br />(c.f.S.) at Lyons, a flood of such magnitlJd., as to have I",ssthan
<br />a I in 50 chance of occur~ence in any yea~. Sooth St. 'Irain C~oek
<br />contributed the greate~ part of the flood.
<br />
<br />Floo:JRocords
<br />Acontinuoos r~ord of Ilo...sat the Lyons gage, located on
<br />fll" left tklnk of St. Vrcin Creek m1d 0.4 ",ie downstroa" from tho
<br />conf luence of No~th and SO"th St. V~;jin C~eeks, is ava i labl e frC\"l
<br />t89~ to the peesant. Peak flood d i 5charges and stages :fur i"'l the
<br />period at r~cord ~re presented in taole 3.
<br />
<br />.1./ Rocorcs frCtTI U. S. GeoiO<Jicdl Surv"y SurfdGe '~dte~ <<(}Conls <In<!
<br /><iaterSupplyPaporl680.
<br />. Flo... p~rtly regu I dtoo by sma II diverSions above stotlon.
<br />
<br />Flood Uescriptlon5
<br />30-3.1.-:!.u~"y_I2.t~ - In Inte July nlg iI se~ies of seve~e
<br />thunder5tor.'Tl5 caused 1 t"sl\ 1 I o<xJi nq "long St. V~a i~ Cnwk. FrCfl1 fho
<br />lyan~ i'<lcorder Oilted 2 AugJSt 1919:
<br />
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<br />
<br />"Tho heaviest aM rrlOst destruCTIVO ClouODu~st . . . in tne
<br />memory of the olJest Inhabitant visited Lyons on Wednesday
<br />(July 30) between 2:30 and 3:45 p.'>1. It took out all the
<br />br idges on the :>lorth St. V~.11 n for dbOJ t ) mil os up ilnd
<br />5 m i tBS do"nst~eam. rhe Longmant ,jn'j Lyons .."tor ",ai ns up
<br />tile canvon won: torn OJt in "'':lnV plJCCS . . . 'Illleo of ro.~d
<br />w"~,, forn out a long t."'" n;;rrow C<lnyon.
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