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<br />localion~, inclvd;n~ dIstance alon(l th~ ",ain chaMel centerline,
<br />ele~ations of the streambed, and eln~~tions 01 the 10.year, 50-
<br />year, IClCI-'lear, and 50Cl-year flood&,
<br />
<br />Cn,"k exits the canyon ~nstrea'" IrO'l1 Fr~nktown. l-bw'wer, Ir()fl1
<br />d~proxlmately rclerence point I"~, the Cherry Croak IC0~vear
<br />; lood plain ;~, in ~onaral, of rejeti~ely uni hHm dv''",''IH wi,llh.
<br />'"'i thin th i s r"ach 01 Chf'rry Crf)ek, lon-v",," f Ino,l n 1,1 in oi dth~
<br />r"nqe trom ~!JO 1",,1 to 4,000 hmt. Tho"" l;w'Ie "dr i "nce, ~rom
<br />the avora!)" flood p lei n '~i dth are, howe'/E'r, cui to local in
<br />arealaxtellt.
<br />
<br />Tho FlOOded Areas 5h0w the area tflat would be flooded
<br />by the IOO-yoarand 500-yearfloods. Thetlood limits were
<br />located at each cross sect lOll and the intervening flood outlInes
<br />were drawn bas"d upon det~lled topoqraOhlC mappillo, 9nqlnearlno
<br />judgment, and field observations. It Is, however, possible
<br />that more or less flooding shoold be shown on the Flooded ~reas.
<br />For a sp'lcific sItuation, where More detailed accuracy of flooded
<br />area is required, th.. llood limits Ci!ln b'l moro accurately estab-
<br />liShed by determining the "atar surface elev"tiotl frorn the Pro.
<br />tlleor Reterence TlIblos and th<ln locating thatelev"tlen by sur-
<br />vey on the flood plain.
<br />
<br />Thcm",jorrortlonoi thnCh/jrryCrock 111-yo.,r flood
<br />plain in tho study rnach Isinagrlculturill u,;e. Fe"buildin<1',
<br />of any typuexiston thiS floodpi'aln. ThoSIlt'lMdoflXIS1 are
<br />locatod in tho downstream reac.hesot the'ltudy. TI""s,,..repri-
<br />mn,.-lly,'grlculturallyorinntcdexcAptfor.lfnwrnsid..nc"slnn
<br />resi dential area located on thE' ',xfrn"'c richt ~ilnk hefw""n refer-
<br />ence points 6 nod 9.
<br />
<br />A relerence line is shown on the Flooded Areas tor
<br />Cherry Creek. Thlslille 15 used for reference only dnd does not
<br />n"CeSSar I Iy coincide "I th the existing stredm channel e~en though
<br />il """V be relerrerl to <IS such In this report.
<br />
<br />Obstructions to t loo<lllow,- - Snvoral rn'''~w,ws cro,;s ~hc
<br />/1 "",1 P I;Ii n 01 Chn rry Cr"" k i r t h" ~ ru,j v re..,ch. T h.. ~', h v '. i C~ I
<br />char~cteri-,tics n/ thQse ro"<1w,,,y., created coMI li""s III 'he <,tIlOY
<br />"hleh rc,sulteu in dn Inereas( In ""ter s"d.)cf' nlf'''.ltlono i""",c-
<br />o I~to I \' u:>~trearT' fror' the:,,, ro"dw,ws r"~'11 on fr""", .., to 5 j",>t.
<br />Th<.' upst,e<Jm water surf,'CO "I"v~tinn~ w:)ul d I nCrndSfl dr,,~t I Ca Ily
<br />i I th" bri'I~", ,,,,,,a i S ~.ub,>li.ntl,,11 ~ r"ducod by 1p.br i S "5r~Clall y
<br />". those rna<1wi'JYs h,winq ~i"h nm~,~n.""""t~. Th..,~" ~i"hf'r "<'Iter
<br />'.ur'~c~ ",,,,!~+i,,,~'l ...".,1'1 II,.,..," "",r~ ,v"~ ~hM ~""w" ill thic, r"onrl
<br />.",.1 in,rH""'~ v"loci:i,,~ tt",ro~<1,". the ~~<;~".tr~ct.~d rorlion'. 'Jf thl'
<br />
<br />The flood elevations 5tlOwn on the Profi Ie ana in ta!>le
<br />6 (IDPly lat..rllllyfr-omlt",ch,,,,,,..loverorostutthefioodplili,,
<br />"Idth. Road crossinqs dndother topographic feotures Cdn alter
<br />the lateral flood elevations. Depending on "hethor these leatures
<br />,Iiv"rt nr hlnck Ilnw~, tho> Ilond nlnv"tlon~ ~t th" "'I<Jn of thp
<br />flood plain may be higher or lower than at the channel.
<br />
<br />b,id~"s.
<br />
<br />rlood plain widths ~ary irom one araa to another th,ough-
<br />,
<br />out thA study reach. The 100-vear flood plain ".dth varies trom
<br />J mlnimu~ Ilcar 150 fcnt to a ~3~I~u~ near ~,QOO teet with ~n aver-
<br /><l<la 01 I ,~()O t..et. Flood pl....in widths i"er",,,s., rapioly ~s Cherry
<br />
<br />lhn ~nlti I~S on ~Intes 20 I'1~OU'ln 5i <,hflW 10", ext",nt tfl
<br />'.'h1ch f Inod ~,ta~"'c. 1r"" In,rfl,,-,nd ~. t~,., tri'IM".. '''' ~~prroci,,~I'"
<br />
<br />~n"e
<br />
<br />I",cr,,,,'.,, (1<;;(:"rc, UJ';j"",," / "0'" C:QI,',r",j(, ~,t;,t" li;1hw,lV 'Jr.. ,)
<br />
<br />. ,,' , .',..~___ ~~ " ,,",', ','" -', ;, ''',,', """,., -"c'"
<br />~"ur,.v r,), '." ," ", ","u" ....,1 '." ."" . . .,.,
<br />
<br />15
<br />
<br />If
<br />
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