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

flood sl~dies
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Lyme .. Rol~o for tle~crmm~ng romloll oppl4able for aom pm~ng inEO~ tleugn nova leu rhon mm~mvn praba ble for orea emr of
ICS' mer,a.o n. 7ED-t)-1aa7A, 7E4-~-I7E:, 7EE-D-776x.
et':Iluatiun i; r.o; prat;ical for a natural ~catcr-
~h~.•c! ro:aPosc•d of ma^.}• sgcare miles of ~•ar}•ing
t>'Ile sni!v, ~r•~c•;atire evert, ;utJ terrain tea-
t;:m<. cot :.:ii rca;oc, hrdro!oeic Ltcrature
cn:,:a:n> ;u;unle::U :;•ai.,<: ;:•'.c "infiaration
r:u~• :I;,I~nacil" to dctcrt:unation of runolT
anl,,,:::~•.. Il~~t•:ccr". the Inf:it...;iOn rate ap-
I,I~~:~ril I. ^~~I~I~cJ ul: :u: cm;u rival has15 to
r L,. i:n n Iu arllc~! .volution tv file pruhlcm of
!~-tcr:nlnnyf :Imounls of runolf, rcco~nizin,^,
tli.l: ;h" c;~lw ~ n., 11 art of the nature of
"lodes" ~•alucs rather then "true" calucs.
Xatural events arc studied and the difTcrrncc
hc:~':ccn rainfall:utd runol' determined. ~incc
thls riiTe:'euce includes al! the los<es dcscr.bcd
abo•:u, it i< a<ca!!; called a rrlrntwu lo;s or a
t'N,cn;iorl talc. Such rc;ctttion r: l,•< crri~rd
Irn:n ;•:ai'.:alic rc.~tll; may he :uli^<trd In uu~
}'n,:cd waL•:~>hct!> try' :utnlue}" of spil t}'Isr and
cu~'er.
An er.Llneer makir.r studies to comp:uc rain-
f;lll ~wlh runu!f mug: ~ccumc fsmil:ar wlth the
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