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<br />HYDROLOGY:
<br />
<br />ESTtMATIO'N OF ANNUAL WATER YtE:LDSPRO'MtlNGA'GED
<br />WATERSHEDS O'F 10' TO' 20'0'0' ACRES IN SIZE
<br />
<br />'V
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<br />AyO r/1:
<br />..t;.4' 'j"/'.y I
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<br />[,
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<br />f/
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<br />rA
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<br />f--
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<br />"
<br />j ~
<br />,--
<br />"
<br />,
<br />~:--
<br />i: i
<br />
<br />"
<br />
<br />2000
<br />I
<br />I
<br />1000
<br />800
<br />,
<br />600
<br />I
<br />400
<br />
<br />i :f---"~ ;"~i~;rf
<br />
<br />100 <.
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<br />! r: ~fJ- ~1Jbf-l
<br />~I n&~+-!f
<br />40 ,!, " ,_u
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<br />L:f / / :r; 1 ~
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<br />I if
<br />
<br />REFERENCE
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<br />1h1s'dn.v1Ilg4eve1opedbyV1rlorIlOcll:wl1D
<br />eoopet'lI.1:1onyf:th~lerB'.~_buahaD4
<br />H.o.'~,1'='<<1eewl~'&t1;MSoll
<br />CollH:rmtioD 8el:91ce bTigat10n englDeers'
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<br />..
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<br />( /;r / /
<br />VI (I( /
<br />
<br />.. '
<br />
<br />20
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<br />~
<br />
<br />r
<br />
<br />"n.
<br />
<br />.1 .2 .3
<br />22 20 .1.8
<br />., '" "
<br />'}2 26 ~
<br />'" '" "
<br />39"" 28
<br />4337 }O
<br />41 40 32
<br />:;sl 49 38
<br />.. " '"
<br />7% 60 45
<br />85 68 49
<br />.. 74 "
<br />101. 79 56
<br />'d1 .. "
<br />lJ..} 88 6J.
<br />UB 91 "
<br />'" " "
<br />128 98 61
<br />
<br />10
<br />
<br />8
<br />
<br />6 '-
<br />",-;;;/ -- ~-
<br />..' 4 --- --.::-~-::-:- - ---
<br />~ /' 3 --........ ---- ..:::.::.--- --- -
<br />~/ ~ -----I'----. ----- :-----
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<br />/t~/!j 2 ~~r--- --=:------==
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<br />,
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<br />,
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<br />,
<br />
<br />.6
<br />
<br />P = Average Annual Precipitation
<br />T'" Average Annual Temperature
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<br />.4 ",' ,,",-
<br />.3'\\'\'\1'-..""" '"'-
<br />.2'\\\0~~
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<br />\~~~~~
<br />.1
<br />
<br />ill
<br />'"
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<br />40
<br />'"
<br />'"
<br />100
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<br />Table l.. v.........s o:til
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<br />RQ.1;1aJ'jw
<br />.4 ., .6 .7 .8 .9 1.0 1.1
<br />1h 14 '" II II ill '" ill
<br />... '" '" '" II ill '" ill
<br />" 1h " '" II II ill ill
<br />'" 1h 14 '" II II 10 ill
<br />" 17 14 '" II II 10 10
<br />" ... " " II II ill '"
<br />'" " " " " II ill 10
<br />., '" 1h " '" II '" ill
<br />'" " 17 14 " II '" ill
<br />" " 17 14 '" II ill ill
<br />34 " 18 14 '" II 10 ill
<br />36 " ... " '" II ill ill
<br />" " "9 " " II II ill
<br />" ,. " " " II II '"
<br />'"' ., " " " II II '"
<br />41 ., " '" " II II '"
<br />" " '" " " II II 10
<br />" " '" " " II II 10
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<br />.08
<br />.06
<br />
<br />.04 \
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<br />[,
<br />"
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<br />" " '-. '-.
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<br />.0'
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<br />.02
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<br />f-
<br />.01
<br />,
<br />.
<br />5
<br />
<br />'0
<br />
<br />70
<br />
<br />80
<br />
<br />60
<br />
<br />Percent chance
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<br />
<br />U. a DEPARI'MENT OF AGRICULTURE
<br />SOn. CONSERVATION SERVICE
<br />ENGINBERING DIVISION
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<br />mee~ at SU<uota, Pl.onda., IfoveIiber ~7,
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<br />Fipre 1
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<br />23
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