PERMFILE128204

• Permit No: C1981038
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: VOLUME 8 - FLOOD DESIGNS
• Media Type: D
• Archive: No

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r•gwr Id. D~pn:v~ion of 6~hom .o~nlc 11 for orrc per' of 10:'
.<•~uon. See L9va 17 Lor a•rc m\IvOee ..•~mn roch tone.
1:6-~-:73e.
(_) Gcltcrcii_rd c/lcrts jur tlLC L-%Li?cd Stctcs
nv ~f n` i0%` n:crir.'ic:;.-Sc•para LC charts o.`
1•robcnlc maximum p:ccipitauon arc pmscntcd
for ;:cncra:-type storms ~':hich co~:cr relatieel}•
;arcs areas of rain`ai!, and for thundcrstcrm
los
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rainfall havins limited areal cocera~e.
a. General-tlfpe stor;r.-FiFUre ]. shoos
probable maximum 6-hoer point ~cnera!-tpe
storm values for areas e: the L•nited Siates
a'es[ of the ]03° meridian. This chart is bated
on the results of ap;,ro>:m:aielc 3:)0 cie~i~n
storm ana!y'sf•s prepared b.: tie Eurcau of
F.eclamation for speci;;c drinape bae::a :'test
of the 1G;i' meridian, as well as con<idera'.ion e;
numerous dcsirn storm aaal::scs made b>' the
Special Studies and ?i•:dromeieorolo~ical
Branches o` the \a;ienal 1'.ea:her Ser~;ce.
The Variable topogra;;'r:p o; :iris pa: t e` the
L'nitcd States preat!~- in`ucnces the storm po•
[ential and permits oni}' limited trans,,ccitia:
e; siorms. These point s;orm ": alucs c n be
applied to areas up to ],OOu square .^.:ik~ br L:cc
of the cun'es presented on ,`i,^.urc lSl. The u-
hour pc•nerai-type storm calL:es car. be ex:c::,icd
fo: ton~,er duration pc:iod= t;}' mr,!:i;:!;:Irk ±hc
6-hour value by t::^.c : p;.roarc\tr fac;m xi:oil;:
in table 1. ~'aiucs fo: dura::or. of h',< than G
hours can t;e oL;alned from the appropnatc
cur:coffi;.urc1S.
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100 :OJ 300 rOD JOC L7C 1C0 0U 90'J 1000
aa[• Ih SOWaL ~at5
• 1.9~•• IV. Ge.vel .~e.~ cen.r...on ram M1on O~hau oo~m m•nloll \0 0-hour area ro inloll for m•a Berl of 103' rnrn0.on,
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