<br />locations, Incl uolng oi stance alon') the main channe I cen+e~l Ine,
<br />elevations 01 thestroambed,andelevationsolthe IO-year, 50-
<br />year, IOO-yea~, and SOa-year t loods,
<br />
<br />Cr8"lk exits the Can van uDst~eam from rranktown, However, from
<br />aoproxlmately reference point 1~5, the C~nrrv Creek 180-ye~~
<br />Ilood plain is, I,., '1oner~i, ot relatively uni lo~'" ,wera"e width.
<br />,....." " " -~, ,,~"_,,~..,~ ",~"d _lilin wir:~h<,
<br />~"",n "is reac" 0 C.,"~r'l C,"~, ,"),~, "" ~ .
<br />range I~om ~00 teet to 4,000 feo~. Thosn Id~ne vori~"ce~ t~om
<br />the ilvora'lc t lood ~ lai" width """, how(!v(!r, ~"i t" loca I in
<br />areal extMt.
<br />
<br />The Flooded Areas show the a~ea that would De tlooded
<br />by the IOO-yea~ and 50a-yea~ lloods, The 1 load I imits wore
<br />located at each cross section and t~e intervening flood outlines
<br />we~e drawn tJ.ased upon detai led tOOO<1raphic maooino, engineerin~
<br />judgment, and field observations, It is, however, possible
<br />that more or less flooding should be shown on the Flooded Areas,
<br />For a spee;1 ie siTuation, whe~e more detal led <'Jccu~acy of 11coded
<br />areil is requi red, the f 100<1 limits can De more accuraTely estab~
<br />I i shed by determining The water surface elevation f~om tho Pro-
<br />fileor Raference Tables and then locaTing th<'Jtelevatlon bySllr-
<br />veyon the flood plain.
<br />
<br />The mojor port i On of ~he Chcr~y Cre~k I ry)-yeer t I ood
<br />~ In in in tne study .....ach is in <lqriClll fur~ I use. Fe" huildi nQc,
<br />of any tyre exist on this floo1 pl~in, Those th~t do exist a~e
<br />locafed in t~e downstro,:lm railcheS of tho stOJdy, Thes" ara vr 1-
<br />ma~i Iy ag~iculturally o~ientod cxcept fo~ ~ fn" ~o5idnnc"s i... "
<br />residenti d I ,jrca located on the nxtrerrc ~i"ht bank hetw~en r",,('r-
<br />ence (')0;nt5 6 ~nd 9
<br />
<br />A reference line is shown on the Flooded ArMS for
<br />
<br />Obst~uctions to tloodflows - Seve~~1 nn~w;Jys cros" ~h...
<br />-~ ---.--.
<br />tlood pl~in at C~"rry :~",>k in the st",~v ~e;,Ch. Th" phvsical
<br />character i 5t ies 01 tl>"50 rO,j<lw<)V5 ere,' te~ eon1; ~ ion" i n ~he study
<br />~hich n,sulted in an incr"ase in w"ter ~u~L'ce el"v~~;'>ns Imm<>_
<br />Mi_~t"ly ul'~tr'H'" t~O<', ~",y", ~O~~w'1Y~ r"""in" ;rom ;; to :; f"HI.
<br />T_""" uDstredM wilter surf"c" nlev,)tions woul d i ncr"ils" ,j~,'stlc~II',
<br />if rhe briG,!" "~e" is subst"nt",lly n'duc~{1 hy d"oris fls~"d"'ly
<br />,).t those roadwilYS h,wir!o 1i"h e",bank"",nt';. The,o Iliqh(lr w"te~
<br />su~face elevations woulj flood mo~~ il~ea triln s~"" in ~hj~ r~eo~t
<br />;,,,d inc~e,)~e vfd')ci tic" ~hrouqh I~e LJ~()t'st"Jct,)d 0('r~i0ns 'J! t~p
<br />
<br />Cho~ry CraoK. Thi s line 1 s used lor reference on Iy and d005 not
<br />neces5a~lly coincide with the exlsfinq st~eam channel even tho"gh
<br />it may be reterred to as such in this rooort,
<br />
<br />The flood alevation~ shown on th~ Profile ~nd in table
<br />(; app Iy I"t"rally from the chilnnel ove~ most of the II00d P I"in
<br />width, Road cro~sin'ls "nd other topog~aphic fe~h'~es Clln alte~
<br />the I~terdl flOOd elev~tions, Depending on whether these features
<br />divert o~ block 1 lows, the II00d elevations at the ed~e 01 the
<br />! lood pl"in may btl highe~ or lo"e~ than <It HIC channel.
<br />
<br />b~ido"s,
<br />
<br />FlOOd plain widths vary from One area to anotho~ through-
<br />,
<br />OIlt the study reach, The 100~vea~ flood Olain width v",~les fmm
<br />a minimum near 150 loet to a m~ximum near 4,000 feet "ith an ~ver~
<br />"ClC 01 I ,400 feet. Flood p lain widths I nc~e"se rapidly as Ch.,.~ry
<br />
<br />lhO ~ro' i I"s en pl~te~ 20 j-~rou'1" 51 ',hr,w ~~" o"'~nl t<J
<br />
<br />"~;ch f In,,'! ~t;lq"e. "l,.n 'n~r()il~e~ ~. ~~" b~i'j.\0s. ^~ ..'~r'''~;.,~I('
<br />
<br />~t~,,~ in~'.,~s" "ccur:; UD'.t~~,,"'l Iro", C"lo~,,,t,, C,hl" Hi..,r'''dV qr" .1
<br />,;:>untv (<;"d "I n'fo"""L" nili"t II(,^. 3froh ^ven,,,,, ":IO-,j f'.1rkor
<br />
<br />25
<br />
<br />25
<br />
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