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<br />It-oTRnoUCTION
<br />
<br />This rGuort waS prap~red ~t the re~uBst of the Pueblo
<br />Region~l Pl~nning Cammission, through the Color3do ~atar Conservs-
<br />tion Bosrd, to define tha flaod situ~tion dlong ~ild Horos-Dry Creek,
<br />Dry Creek,:md Caodnight Anoyo in t.'1e vicinity af Pueblo, Colorada.
<br />References to Wild Horse_Dry Creek a~ply to the Arkansas River north_
<br />bank tribut~ry which conveys the combined atreemflows of ~ild Horse
<br />Cre.." and Dry Creek from their confluenoe north""8t of Pueblo (ne~r
<br />the ~ild Horae subdivisio~ co~~unity), through the city's north_
<br />wABt q~adrant, to disch~rg8 inta the Ark~ns~. River.
<br />Dat~ are includej to aid in solving local flood proble~~
<br />and in d~t~r~ining the best u99 of l~nd subject to overflow. Tha
<br />report is baB~d upon information on rainfall, r~noff, histo:io~l
<br />flood r~cord$, ~xisting concontrations of development, etrea~
<br />aonditions, and other hydrological factors ~hich bear upon the
<br />accurrence and siLe of floods in tha Pueblo area. Ne~ develo~ment,
<br />land uSe changes, bridgos acrass tha channel., and channel ~lteraM
<br />Hons including conslrudion of ,'sas:'voirs 8!:8 " fe~ uf the fectur.
<br />thetwoLJldeffecttheemountofrunoffreachingtha..treans"nd
<br />their capGlolty to convey the floodfla~s. Expension of devel"pmol\h
<br />il\ lur~~ dre~~ of the w~ta!:ehed8 itudiec aL const!:ucticn of ~~to!:
<br />cantrol structwros ~ay altar hydrologicel conditlone sufficiontly
<br />to "'an-ant f~h.re revim.~ und posaible a~.ond"'ent of this report.
<br />The rep~rt covers two signific~nt phases of the flood
<br />prablems arising in the subject watersheds. firot, it bringe to-
<br />gether such recorua e8 are evailable of past floode in the areaa
<br />con.i<Jered and, second, it traata p!:obable fut~re f:ocds. n~mQ~y:
<br />Jnt~rmQdi~te Regional floods and Standard Praject Floods. Inter-
<br />rnedieto Regianel Floods have an ~varage fraquency af occurrenCe
<br />in the order cf once in lCO years. They are det~rmined f!:Q~ ~n
<br />analysis of knQ~." floods an the P.rkansas Rivar w"tarsh~d ~"d "ther
<br />.treame in the 6~~e genc!:~~ geographical region which ~ave "i~ilaL
<br />phyatcal chan:cteristics. St~nd.,"d I'raject flood. ar.. flo"C5 of
<br />
<br />rere OCC~r!:~nce that, on most .treams, are con.idetably larger than
<br />any flaods experi~nced in the past.
<br />In probla~a concerned ",ith the planni~g and manQ~ament
<br />af developmsnt in the Cocd plains of ~'i:d HDrse_Dry Cr"ek, Dry
<br />Creek, "nd CoocJni~ht Arroyo, the passible futuu oc,;crrence of
<br />flaods the ai~e of the Intorm~diate Regio~el F:oad and the Standard
<br />Project flood aho"ld be considered.
<br />The report contains meps, profiles, and cross sections
<br />which indic8te tho e~tent of flooding that may OCCur in the futurs
<br />in the stream reaches studied. This should prove h~lpful in plan_
<br />
<br />nin~ wise use of the flaad n' 'n
<br />" ~~a..."s.
<br />
<br />depth of prObable floading by
<br />Projact flOOd et any location
<br />tion,Floorlevelsfo:
<br />
<br />'co
<br />
<br />fram the maps and profiles, the
<br />Intermedieta Regianal or St~nd~rd
<br />be estimat&d. With this info~~a_
<br />
<br />..,
<br />
<br />flood d~mags or. if at
<br />Gh",,&sand
<br />
<br />~uildings may be planned high enough to avoid
<br />lower "l~\mti""a, ..ith recagnition of the
<br />
<br />hazards of flooding that are b~ing taksn.
<br />The report does not indude pbn$ for tha solution of
<br />
<br />flOOd prOblems. Rather, it is intende<J tD provido the basia for
<br />further study and planning on the p~rt of the city af P~eblo and
<br />the Pueblo ~egional Pl~nning Commission. !n dcvolopi~D loc~" plan-
<br />ning progr,,"'s, considaraUon sho'~ld be given to prcvidin"J lnstrlJiC_
<br />llo.,~ Fur di"~bl,,<' ~p".'"Ll"n~, ""nl'-al1i,,~ cJ~v~lopmenh in tha
<br />flood pl"in thraugh zoning and subdivision r~gulations, ~nd incl"d-
<br />ing appropriate ~tructu~al adAptationa in building codas. The
<br />:ombining of nanstructural contralmeaac:res "'ith construutiw, of
<br />flaod prct"~ti,,n woLks generally constit~t~~ th~ most eff~ctive
<br />approach to flood :a8s ",an~ge1TIont.
<br />The Albu~uerque Diatri:t of the Corp. of Engin~~r"
<br />will, upon rSQUest, ~ssist federal, Stete, and local agenoies in
<br />the interpretation and 1;8e of the lnfor"'~tion oontain~d he:ein,
<br />and will provid~ other av~ilable flood data :el~ted theret". fot
<br />definition of "peeial ~cr~s ussj in thiG rspo!:t, !:efer to the
<br />,lossery of Terms Section.
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