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<br />conducted for communities previously st~die ~I<en new develo,pment ~jteins warrant detailed /;/
<br />study, or when problems in the original ma . / g process are identi~W5kor when changes take /;;:;/
<br />place within the watershed or floodplai!y t alter the floodplain,d"yfl'nition. / / /
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<br />NFIP: map needs are ide~tif",a~y the communit~6h'e FEMA regional offices ~
<br />co.m~~nity .,.'!Ssistance visits,.91>y tfitt~P state c~d1n~to~s: The regi~nal offi5-ey~~".
<br />pnontles oj1,needs and ovlltpee contracts foi:~~~s. Pnontles for studIes m:e-/'baSed on\{:Qsts /
<br />balanced against ben~/The benefit is greatest where development or ant~ted developin'ent ~ \
<br />is greatest/ and co~~jha;:ing ~y th~ c~mmunity increases th~ rati~ of ben;pt16 ?ost. . The NFlAA.> /;;:;/ '
<br />mandat~ a n~1;V;Process for IdentIfymg map update needs m whIch a y6)limuruty wIll be ,<iv/
<br />screene~ ~~;lSf once every 5 years. This process will establish a Jeal'.:Hme national inventory 0[.///
<br />DET~i[:1,'6 ~Qed ' (reite a national database to support priorities for fUIJdi)i{map updates. FEMA is /;/
<br />impt nting the process and will coordinate the effort witlYjl(e Council. /;::/
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<br />To keep NFIP maps current, FEMA must re!y.9rt'communities and individwproperty
<br />:r~:te-~it information refl~c.ting physic~~~ges that occur in the flo~sl.~ard areas,
<br />, W Km/endtrIents and reVISIOns can b}l"Jllfule for several reasons: to)'eJIfove structures /
<br />ttie'speCiar flood hazard.~ea (SFHA) #t were inadvertently incli!9)id;io reflect changes in /;;//
<br />mmunity boundaries, to COrreChJ~ors ip: br refine original analysej(;illdJor to reflect physical /;/
<br />~ffiQ..QM-iAWions (for instance, fill in theflqbpplain, channelization~~struct!on ofle;ees, da:ns, or /;>'>',
<br />culverts). Most of these requests are pn\.~se,(by FEMA heJd',quarters (WIth technIcal revIew by'/ '<\
<br />SiJ technical eva.luation contractors [TECyJJ to erlsill't~n~Y;Consistency and uniformity of~9~f' \~'"
<br />j hazard mappmg, " " ~~~' / /,/.
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<br />An NFlP map for a specifi<<!vroperty or structure is U~qated either by a L~~'ofMap
<br />Amendment (LOMA) or a Letter pfMap Revision (LOMR). f\1t.hough NFI~~ps are prepared
<br />using t\1~ best topographic maps ~,^ailable, a property may be shh.Wn withiJdl1e SFHA but be on
<br />groun4 that is actually above the S~A. Limitations of scale or tdp'ogra.Pffi~ definition are
<br />frequ,~t1y a reason for this problem\t[~o fill has elevated the pr~)'tf above the base flood
<br />ele~a)ion (BFE) ~l; tlhe property owne(~ay submit certain P;9perty location and elevation
<br />inf6,tmation to FEMA and request a map ~~dment. /~/
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<br />/ / If a com#ity anO~ll, excavation, 6r\~fr6ction-such as that of levees, channels,
<br />/~/culverts, dams,Alrt'd bridges ~ters flood ha;l:!\rds, the community is required under NFIP
<br />:::::::::= . regulations to/~bmit technical or SI>I)ntific 4as;1"-feflecting the changes. The submission is
<br />necessary so/that insurance premium rdt\;s,Jj:llti floodplain management requirements will be
<br />based on c~~:a.v;i:;/ /_,/'::J,/c-.::c:=/. ___' ==-=
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<br />The NFIP ~~~~.p~~&f'.a? has become ~uite complex, pr()~~~~~:~~~;_//'
<br />, products used for dIverse a;ppli:CatlOns offloodplam data. !D.t~,*S~~liI's1ffthe program, both
<br />!: the NFIP ~ap products ,ajid the way they are pr~par,(J~~;:e)!6Ivea~d improved in response to
<br />: i the changmg needs ~/demands of the expan~J;lStlf::baSe. These Improvements have occurred
<br />! i while the program oPFt%<c<iw~l1,lllJce~~ftConstraints. At t~e NFIP'.s inceptio?, the
<br />i,' maps were prepared ,.qV1cklY'~Sl'ng:ap~te methods of floodplam analYSIS and rudImentary
<br />__=:::! i,-_(:1l1!ogr<l~~~c.tec?nj4rtes.. 33.iS/<tP~JK:hwas t~en because of congressionally mandated. time
<br />[1<11UCS to-est~nli];jj, a:;~nafj1oOclrIHln mappmg program. When the mandatory flood msurance
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