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<br />
<br />TIlE REGUlAJDRY FLOOD\'lAY
<br />
<br />;-,2;"J13ton' flo'J.=,.:a' policy h2S been estc_blis}--.eo :--y th',: CelT'S c-f
<br />~:-.;_:".::~:'S CZe:'::1"e?:es and 2) 2J1d the Feoeral Insura..jce ),\~'7linistration
<br />(::Ze:e:-e:;,c23). [Titer a estJ.blished bv both agencies 3-::-e iT) 2'='Teer:lent.
<br />T--:ese c:-i ter:c. aTe ce:J cted in Figure i and 2.Te listed celC',\', c-
<br />
<br />:'11 "2.xiFum rise of 1 foot for the lOO-ye"r flood (les5 if
<br />c-:~~~',~'.-.C'?,'''.,', -] l' 1 ,. .,...
<br />".;.::---- .-.:: ~- ~ 5::~:e c:- ..:.cca ..t(-~l2._2tlC:-.S.J' .\'Jte: It lS ::-,.::;.::
<br />'- .c::.: ::-,2 1 fo;):: rise :e recchc:d at every section.
<br />
<br />i::-;:en':t:-.j
<br />
<br />s~c~s 0: ~~~ s~rc&u.
<br />
<br />~ ;::.--'.C-:'':;:_>: ~::~~!.:~ c:: ::;:"i..;:';31 cielE::ic~ \~<::' C:=T.':CY'::~CE'
<br />
<br />"'. ----'.
<br />- '-~. ~ ,~- ~-
<br />
<br />_i '\'eloc2 ties 2".:"('- not exceSSl \'e.
<br />
<br />...2 ~lC:'~~'..2:-'
<br />
<br />:~.~I~~::~~icn ~~d ali~.~ent
<br />-- - - ~ -~_ 6c":eIT..1:;:~t.
<br />
<br />r,L'st
<br />
<br />be-
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<br />,
<br />S:;C:l
<br />
<br />t}:a.t
<br />
<br />; -~:;::'':;:'_C'' ~~"
<br />
<br />CD Tne flaoeh-cay alignment should be coordinated with state <md/or
<br />:cc21 c:ficials.
<br />
<br />(Water surfoce of se)e~ied floOd with
<br />encrcochr;')enl in frmge arees,
<br />
<br />G) 0) FLC~CW'Y
<br />::-:,,:'::n!....; F;; .,:::: 1 ~"'i:"C:iGN"T;:D F'LCODW:"Y I F"',~:E I
<br />i:1;J~ r' 'I Y-- - - , . Ii
<br />\::~!~ I( ~~
<br />c,0~___'L_ I 1 '~
<br />(1'~:Er';d'22..ZJJ'/.'///;' Or ~ := V7r.71///I;
<br />r '''''=i';W~-1:: //, rl;l?/
<br />~=. ~~~
<br />'O'l\; 'v ~\~I
<br />-I r""~ ~ /';:~~h'c:<"i'\( ~
<br />_ o-....;l...;:,-u lX li~ \.0\
<br />~,e,"'"'" ~,n",c~ ',,,,,='0 I ~~~~~ <'=<2
<br />c~~.e se1e.:'e::l fleed cc"s dered ~~'.l.~
<br />c;j...isc::,e fe' flcocprcofinc;, fiJI, I CHANNEL WHERE::
<br />O~ b..itlc:rH; glode. K;:CONVEYENCE
<br />
<br />r~::t.."ol weIer sl,;rfoce of selected flood
<br />
<br />(REFERENCE II
<br />
<br />Figure 1
<br />
<br />The criteria of the regulatory flaodhay are, by design, simple,
<br />and eas'" to \1I1derstand. Ho,,'ever, the engineering details and, most
<br />importan:, the engineering judgements necessary for a correct flood-
<br />"~cay desi.91 are difficult and sometimes time-canstrrTling. The fOllah'ing
<br />;oa~a~Y2;J':S of t':is ;o"per pres~nt suggestions that can be used to
<br />E\'c-ic :---,?_""-:." of tr:c. t2n:-c'JnSl...TT1nng problems.
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