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<br />RapLdly risLn" str~,,",~ :,r~ also I\"~,,cd~~" t,) 'in 1l1\"llSpectl[\g I'"bltc, "."p-o-
<br />
<br />dally at r,,~d crosstn;;s. ,'r"", the h,,;,i[\nL1i~ tlrr.e ~f ""noff, a IOU-year
<br />
<br />flood ~a'ard ~xhlblts
<br />
<br />freq"ency flood 0" Chalk Creek '~itl I><'.lk t" ab',ut 'i h~"r~ at the confl"e""e
<br />
<br />Flood hazard ~xhlbUs for the Chalk Creok st\ldy area are in the Appendix
<br />
<br />IOith the Ark.'''s"s River.
<br />
<br />fQllolo/lng the text of this repon. Included in the Appenrlh are: Flood
<br />
<br />ha"ardarealMpl"dex, flood hiizard are" ""ps, floodproflles, typical
<br />
<br />Q\lr.u1oll of floo~i"fl '''iLl vary, dependtng ",' t"'e .,,,,,son 1n ...hich noodlnfl
<br />
<br />valley cross-sections, and tabulat10ns tot the flood freq~ency-elevatlo" and
<br />
<br />ncc"r~. In the sprlag "I\e" the "tr"""," ~n' hL&h. "lth runoff from sa<l"T:\elt,
<br />
<br />diseharge <LHa. .or use in determining the flood hazard for any partic~lar
<br />
<br />""u~led "HI> spring r~LlIs, hLZh "ater could ~er.i~t for sC"eul days.
<br />
<br />locat1on, the flood proflle~ and tabular materLal are assembled by reach
<br />
<br />O"rtng the late SLH,,,er montf,s '..f,en the .tt"c'\.'l\.~ are normally 1010, r~noff fro,"
<br />
<br />numbers In s~quenti"I otdet. 1 through 6. Metric ConversLons - To aas1st
<br />
<br />thunderstormsIo/1lLreeedetnafewho"rs.
<br />
<br />readers, information 1n the exhibits is given In \lnlt! of eommoll meas~re and
<br />
<br />metrieunits. TI\efollowingaredeserLptionsandsuggestedusesofth"
<br />
<br />Flood flazard Areas
<br />
<br />exhibits.
<br />
<br />The total flood ha7.ard area"" all re"ch"" ~"bject cO Lnw,dat L"" by th~ 100-
<br />
<br />year flood u"der present condlttoll" is abo~t 145.5 ,'Cres (58.9 h;J). The
<br />
<br />~\aps
<br />
<br />area Ln"re"se~ to 'lhQ\lt 11i7.. acres (67.8 ha) for th" SOo-y""r flood. The
<br />
<br />For pbnnlng and flood zone regulation purposes, the lOo-year flood ls used
<br />
<br />follo'''in~ tab'Ilacio" for ar"as flooded is by stlldy ",Meh.
<br />
<br />locally as th" IMse flood. ~r&er floods, ""eh ,,~ the 50I)-y"a< flood are
<br />
<br />"Iso considered In the planning and ""'''''flc",cnt of flood-prone ,HeaS. The
<br />
<br />LOo-year aud SOO-y"ar events "re o"tllncd on the Hood Ila'"rd Mea Maps. In
<br />
<br />,
<br />
<br />~Io"d H"z~,"d "'~~~
<br />lOO-Year Flood 5UO-"{earFlood "
<br />Acres (Hectares) Acres (Ilectares)-
<br />5.' (2.3) '.5 (l.O)
<br />56.S (22.9) lib. I (26.8)
<br />D.2 (S.4) 15.1, (6.2)
<br />5.J (2.5) '.J (3.0)
<br />39.1 (15.8) 42.2 (!l.l)
<br />_?!,-~~~_(1.0:.2.~ 28.9 (11.7)
<br />14'j.'i (58. ~) 167./, (67.8)
<br />
<br />many tn"ta~ce" the outerllm1ts of the 100- "nd SOO-ycar floods will "ppc"~
<br />
<br />StlldyR.e"ch
<br />!lo.
<br />
<br />as one llne 011 the maps. This ts UtI" to th" topographIc ~ellef and slight
<br />
<br />difference in elevation betlOeen the <100 flood e"~llts. It ~h"uid be noted
<br />
<br />that areas oho"", .n flooded on the !:laps "uy v.~ry ",ore or less with present
<br />
<br />J
<br />
<br />field c<>nditlons. For detailed in(orm,aUon, flood elevat ions ~ho" Id be
<br />
<br />5
<br />
<br />Jeterro:i"ed at specHic locatlons and checked IOUh field surveys. Exhibits,
<br />t<lblcs, and other technlcal dat.3 labeled Edsting CondltLons, ~l:1y 1977,
<br />
<br />m
<br />
<br />"
<br />
<br />"
<br />
<br />In aCCOrd<lnCC with the Jllte of ""rt~l pho<"~raphy for ~h<>t"8r~""etrLc
<br />
<br />H",Jy Ar~..t t~taL
<br />
<br />",appbll'
<br />
<br />I! 0",. "e rf! Is <>q""l to :). 41l'i h.".~., u.<.
<br />
<br />"
<br />
<br />"
<br />
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