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<br />3910
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<br />FRYINGPAN-ARKJlNSAS PROJECT, COLORADO
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<br />water (including the 2,000 acre-feet of Wurtz ditch watcr) aud all
<br />ultimate addit.ional need of 15,000 acre-feet by the yenr 2000. The
<br />city ha.s also expressed interest, in obtaining t.reatment of its present
<br />supply of 21 ,000 acre-fcet,
<br />29, Canou City and Rock"}' Ford obtaiu muuicipal water from the
<br />Arkansas River. Callon City has not requested project wat,er.
<br />30. The towns of Mauzanoln, Rocky Ford, Ln .Junt.a, Las Animas,
<br />and Lamar, and the off-stream towns of Crowley, Wiley, and Eads
<br />have requested t.reuteu municipal water froll1 the project to replnce
<br />entirely their present supplies. Their immediate needs arc about
<br />8,000 acre-feet.
<br />31. Flood control.-Few damaging floods of record hc\.Ye occurred in
<br />the diversion area and in the Arkansus Valley dm\"n to Callon City.
<br />:From there el1stwtll'd, however, daIlluging floods increase in frequency
<br />and yolume to thc mouth of the Purgatoire Rive". The largest, flood
<br />of record in the project. firea occurred in .June 1921. Intense rains
<br />eallsed flows at Plleblo ,'stima led at 103,000 ,,'colld-feet. Down-
<br />st.ream tributaries eOIlt.riLHlt(.c{ to the flood until tlw Ill'ILk of :WU,OOO
<br />second-ft~ct. wus rellched lit Lu .Juntlt. The flood killed nt. least. i8
<br />persons; property dnmuges exceeded $19~OUU,OOU, iucluding $10,000,-
<br />000 in Pueblo.
<br />32. As a result of t.hat disastrous flood, a barrier dam aeros.s tllE;'_
<br />Arkansas River, 6 miles west of Pueblo, find an irnproved ftoOdWll:'o"
<br />channel t.hrough the eit.y were completed in 1926. Anothcl' ftood-
<br />control st,ructure, the John ~Ial't.in ResclToir, located on the Arkansll.s
<br />River near Lamnr, Colo., wus completed in 1949 by the Corps of
<br />Engineers, A multiple-purpose project, 281,000 acre-feet of its
<br />701,000 acre-foot. capacity a.re allocated to flood control.
<br />33. A flood danger still cxists from Pueblo downst.ream to the John
<br />Martin Reservoir. The Corps of Engiueers has estimat.ed that Hie
<br />aunual damages ulong that reuch of the river uyerage $890,000. The
<br />init.ial deyelopment could eliminate about 66 percent of that probable
<br />damage.
<br />. 34. Associated needs.-Sedilnent control, strelllll pollntion IIbllte-
<br />mcnt, enhancement, o[ the environment [or fish find wildlife, and
<br />provision for recreatioll are other needs of the project area assot-iated
<br />with water development. Industrial expansion, conservation of
<br />forest and range lunds, aIllI stabilizat.ion of the cnt.ire economy by
<br />balanced diversification of interest tire recognized as long-range
<br />objectives. The initial deyelopment could immedilltely ameliorate
<br />some of the problems stemming from those needs, Resolution of the
<br />long-range objectives will rcquire coordinated and unselfish coopera-
<br />t.ion by all citizens, ugencies, and cntit.ic8 eoncerIled,
<br />," 35. ~"ent.ion has nln'ad\" Iwp.1l IDl1de of t.he aeute sedimentat,ion
<br />~roblem affeet.ing il'rigatiOll ill t.lw mnin Arkan~as Vulh~y. At Pueblo
<br />.the river annually trnn~ports !\bout 944 acre-feet of sediment. Ap-
<br />proximately 42 pcrcmlt, of thnt. spdiment is depo~it.ed in rescrvoil's,
<br />crmals, nnd lat.eraIs; ahout. ~~8 percent becollles undesi.red depositioll
<br />on the irriglltcd lands. Aggradation of tbe river channel hilS made
<br />some irrigat.i.on divt'rsiOl.l structures inoperative; other diversion
<br />s.t.rUeLures have 1~'~sarJlY been raise.d. Removed 'sediment now
<br />lmes some canA.I .ks and further dlsposul has become very cx~
<br />pensive. Canal nd traps hll ye become inoperative. The ollly
<br />apparent immediate solution is pl'ovisioll of reservoir space specifically
<br />for the deposition of sediment.
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