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Last modified
1/25/2010 7:10:38 PM
Creation date
10/5/2006 2:42:22 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
41
County
Weld
Community
Greeley
Stream Name
Cache La Poudre River
Basin
South Platte
Title
Floodplain Information Report - Cache La Poudre River, Colorado, Volume II, Greeley, Weld County
Date
3/1/1974
Designation Date
2/1/1975
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />"ft,STFL()()DS <br /> <br />FLOOD DESCRIPTIONS <br />Many floods In the Cache la Poudre River study reach have <br />done little damage end have Gone IInreported. AlthOugh it is known <br />that severe floodIng occurred In the basin in 1844 as a result of heavy <br />snow cover and Intense ralnfall,thearoawassosparselysettledat that <br />tIme that nO record was made of the effects of the floodIng In the lower <br />basin. SimlJarcondlt1ons caused flooding In the basin In 18M. The <br />Greeley TrIbune of 24"""y 1876 reported the local riveroottomall under <br />waterfromrocordralns. In JlIneof lee4 the "Boyd farm" northwest of <br />Greeley was said to be entirely under watar for the first time from e <br />combination of snowmelt runoff and rains. More detailed descriptions <br />are available for mora rocent floods, presented In the following par agraphs: <br /> <br />S~JMMAR~ OF HISTORICAL FUX)[)S <br /> <br />~um~qinq floode, in toe study area 01 t~e \,acr~ la Pbudrc oiver <br />in IB5~, 187(" 11184, and Ig()~, 1917. 1923, 1947, 1Y49, 1"51, Me i9f,5. <br />0' t~e5~, the 1917 flood is t~e hi~~est 0' r~c~rd. <br /> <br />"'LOCfJRECQRDS <br />i nf"rmat ion on hi storiea I floods on t~e Cache fa Poudrll River <br />w~s obtained from a GaGinG station ~Intained bv the ~. S. ~eolODical <br />SUrvey ,,'t "reoley, Colorado. T~e <lane 15 located" mi los east of the <br />courthouse in Grecl ey and 3 mi fe5 upstream f.-om t~" P":luth. The r,reel cv <br />"""" has been in oporatlon from 1903-191)4, 191~-1 (j19, 192~ t" the presont. <br />Newspaper files and histo.-ical document5 wore also searched tor Info~~tion <br />concern in,! past floods. P.'uch in'onMtion on pad floods nn t~e Ce<:~e I" <br />Poudre R i vcr was ollta i ned from the U. s. r"o I 0<1 i "'" I Surv""y 'N" r<)r Su'~ I y <br />Paper 997, "Floods in Colnrado". <br /> <br />21 May 1904 _ Flooding In the study reach on 21 May 1904 <br />resultedfronlnllnsof "clOlldburst itanslty" In the foothills at abo lit <br />7,000 feet elevation on the headwaters of North Fork and 80xelder Creek. <br />Oama'le WIIS heavy at Fort Collins and Boxelder Crook, downstream from <br />Fort Collins, contributed hiqh flows, Ther.rnelevTrlbunestated: <br /> <br />rahle2 <br />HisroricFloodPe""Oischar.qes <br /> <br />"ear Date <br />1917 JlIne ". " <br />1<)2;\ "O~ " <br />1947 Jo~ 23 <br />1951 August 5 <br />1965 June " <br />"Estimated <br /> <br />PeakDIS<:h"rgO(C.F.S.l <br /> <br />"The Boxelder, a small stredmnrdlnllrllyonlyafewfeet <br />wide, was tearlnq down through a fertile valley filled from <br />blllff to bluff with a sheet of water" mIle wide, carryIng <br />bulldlngsendbridqesaway.. " <br /> <br />C~ch<l i3 ro"d"c '1 ;vc", S,.cc IC'I. Solorodo <br /> <br />13,000" <br />Oi 5c'~rqe data not ava i lable <br />~,O:;O <br />3,760 <br />3,480 <br /> <br />Below the moutll of BoxelderCreek floodwaters were reported <br />to be I.Smlle...ide In places. Everybrid'leb..twoenfQrtColllns <br />and Greeley 'MS destroyed. The flood reached Fort Coil ins late In the <br /> <br />afternoon Cn 20 ~oy ~nd t~o crc5~ arrived a~ r,r~~I~y ~~ut R:'n ~.M. on <br /> <br />21 ~ay. Water backed lip behind a cui vert at the Union Paclfie Rai Irwd <br />track and oved lowed a large ar6o' io the cl ty. Lowlands downs~ream of <br />theral!roadwerealsofloodedwlthl>ou5essubmerqedtothewindowsil15. <br />FIOOdi n1 conti nued unti I n<)(on ~h"n rpc"eded rapidl v. Tot~1 d"""'oe5 lor <br /> <br />" <br /> <br />" <br />
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