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Last modified
7/29/2009 10:41:42 PM
Creation date
10/11/2006 11:35:55 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8147
Description
Gunnison-Arkansas Project
State
CO
Water Division
4
Date
6/1/1948
Author
US DoI BoR
Title
Interim Report Gunnison-Arkansas Project Colorado Appendix G Flood Control
Water Supply Pro - Doc Type
Report/Study
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<br />'_.;----188-J <br /> <br />Clinpter I <br /> <br />Historic'll floods <br /> <br />In tho TIestern Slopo diversien'urea. as in the mountainous hond- <br />.mtors region of tho Ark~nsas Basin, dronaging floods of gront magnitudo <br />~re extromoly rare. llinor dnmngo sometimes results from vory locnl rain- <br />storms or 0.bnormal spring runoff; ho.lCvor, such floods c.ro so infroquont <br />and damc.go so rolativoly unimportant that flood control is not a major <br />nood. Thero are no majer flood control projects in tho'divorsion area, <br />nnd only a feu fncilities such us jettios, riprap, etc., have been built <br />by t~e railrond, tovms, londe.mors, nnd highTIny depnrtment to protoct <br />locnl improvements. <br /> <br />[ <br />I... . <br /> <br />Floods of varying magnitudo and resultant damnges hnvo occurred on <br />the Eastorn Slope. Although logends of' floods supposed to h"ve occurred <br />at pueblo during the 100 years preceding 1921 indicate "mat might"~uve <br />been .f~()o(!~ eq\lu~ing or exceeding tho mngni tude of t ho 1921 flocid;'"~thore <br />c.re no definite dc.tn to support. such leE;ends. .. _, = _=, . , <br /> <br />Indian stories' ~nd varfous. st0,to,"ents by eo.rly 60ttlors indioato""a. <br />gront. flood in 1844," but upon investigation it vms found thtit thfS~floo~ <br />\"IUS tne result of a lccrgc sno'::fnll c.nd in mal);nitudo rms l'robn1ily. smn:ller <br />than a flood which occurred in 1864. <br /> <br />. <br /> <br />The flood cf 1864 rms tho rosult of extremely hen~r rains, b~t as <br />Puoblo'rms littlo more than a trading post at that timo, tho damago .ms <br />slight. <br /> <br />Tho noxt large flood occurrod in 1893 and seoms to havo beon tho <br />fourth in magnitudo in threo quarters of 0 contury. As roported in <br />contemporary nm1spnpers, the 1893 flo~d eousod damages amounting to <br />$200,000. <br /> <br />Tho most dostructivo flood in tho recent historJ of the Arkansas <br />Vnlloy prier to the flood of 1921 occurred ilny 30, 1894." Fivo livos <br />wero lost in Puoblo ~~d dnm~ge amounted to nonrly 02,000,000 in property <br />105505. Mnximum diseh~r&o of,tho flood rlns dete~ined by tho slope-orcu <br />methcd to bo 39,100 SDcond-feet, of ~hioh 24,200 second-foot h~d boen <br />cnrriod by tho river channel und the renuinder hnd ovorflouod into tho <br />ci ty. Subsoquently, tho river chnnnol in Puoblo \"lr'.S \"ridotlOd nnd tho <br />levoes roisod so thnt the inprovod chnn.'1ol \"lOuld corry 40,000 second-feot;. <br /> <br />MOST DISASTROUS FLOOD IN THE lJll{l.NS1"S Vl.LLEY <br /> <br />Tho mujor flood in the Arkunsus Valley in Colorudo sinco tho ift~u- <br />gurntion of tho prOSD~t systen of strc~' goginb Dccurcd Juno 2 to 6, 1921. <br />T~~f~o':.d ~ ~!>~_ A!,k~~s_ Ri.".o.r~t_Pucblo_l"m8_Causod- by-n-sories- of..cbud~- <br /> <br />--- .- <br />
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