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<br /> lV-l7
<br />5IJtGRS (~(}5!1 Watershed (IT State
<br /> ((f(() ~7$- Subvatershed
<br />5oL;-- /" r,)~::; ,(J .}3E PSIAC
<br />. "" 1968
<br /> -
<br /> Acres
<br />
<br />. /J" .". . pUAlll'g'.
<br />t1"1e51'7.;- FtvP Condition
<br />!lame 7;)Ah1 -/:3./../11
<br />Date ~".;l ?~.9d
<br />
<br />4/.1) FWJf> T/64-".,,;,vT
<br />
<br />r:::
<br />
<br />p
<br />
<br />N
<br />f\..)
<br />CO
<br />CD
<br />
<br /> 5,./1 t.I -). SEDIMENT YIELD FACTOR RATING /ka;ml"'-/~IIE.
<br /> SURFACE GEOLOGY SOILS CLIMATE RUNOFF TOPOGRAPHY
<br /> (.) (b) (c) (cl) (e)
<br /> (10) 1/ (10) (10) (10) (20)
<br />.. Marine .hales and.r:J. .~ine textured; e..~ .. Storms of several .. Hleh peak Rows per .. Steep upland slopes
<br /> lated mudstones a V I, dispersed; aaUne- days' duraUoa. with unit area (in excess of 3~o)
<br /> .Utatoaes alkaline; bilh sh:rinke .hort periods of in. b. Large volume of flow b. High relief; little or
<br /> Iwell eharacterbtics tense rainfaU per u.aJ.t area no floodplain devel..
<br /> b. incl. Ifain sUts and b. Frequent intense con opmen'A7i {,;~= 16
<br /> fine s.ncia vectiv, storms
<br /> c. Freeze.thaw occur- Y==/f~
<br /> reoc.
<br /> (S) (S) (S) (S) (10)
<br />.. Rocks of medium .0 Medium. textured soil .. Stonns of moderate a. Moderate pe.k nows .. Moderate upland
<br /> hotdneo. b. Occasional rbck fr.C" duratioQ and. intensity per uDit area slopes (less than 20'ro)
<br />b. Moderately weathered ments b. Infrequet'lt "'-w'.etive b. Moderate volume of b. Moderate ran or flood-
<br />c. Moderately fractured c. Caliche layers Stonlle <3'1 now per unit area plain development
<br /> (0) (0) (0) (0) (0)
<br />a. Ma.sive, hard forma.. .. HIgh percentage of a. Humid climate with .. Low peak flows pe' a. GenUe upland slopes
<br /> tions rock fragment. rainfall of low inten. unit area (less than 5<lJ'.)
<br /> b. Aggregated clays sity b. Low volume of runoff b. Extensive alluvial
<br /> c. High in organic matter b. Precipitation in form per unit area plains
<br /> t?'il! ;Y'.! ;;~ L, of snow c. Rare runoff events
<br /> c. Arid cUmate, low in. ~j(.: 't ,,; 'M,(
<br /> Ydv"t tensity storms
<br /> d. Arid climate; ,are 'I'Cot. t
<br /> convedive storm. ' tv. / :a'4- ;'&-"-i'C:
<br /> c,/ ..",
<br />Factor! I 5 It) ~ C-- 7
<br />value '-' --'
<br /> GROUND COVER LAND USE UPLAND EROSION CHANNEL EROSION AND
<br /> SEDIMENT TRANSPORT
<br /> (I) (g) (h) (i)
<br /> (10) (10) (25) (2S)
<br />Ground cover does no' u- .. More than S()IJ. cultivated .. More IhOll S'". of the .. Eroding bank. continu-
<br />ceed 2M. b. Almost all of area inten- area characterized by rill ously or at frequent in-
<br />.. Vegetation sparse; little sively grazed .od gully 0' landslide tervals with large depths
<br /> or DO Utter c. All of ..... recently erosion and long flow duration
<br />b. No rock in surface soU burned ft')clf",p?/c b. Active headcuts and de-
<br /> . Co ---!t~ gradation in tributary
<br /> ",,15/0 ,/3(1 _c, /:!$ 'r.;'lIt f tjj91(/~< J channels
<br /> tllf._t1 ;-;:'f;' ,Ir'}(f.
<br /> (0) /it5 (0) ,:'11. ~ ,- (10) (10)
<br /> /}j'vW iF,d f I' '>
<br />Cover DOt exceedinc 40'/. .. Leas than 25% cultivated .. About 25'fo of the .... .. Moderate now depths,
<br /> .. Noticeable litter b. Sor. 0' Ie.. recently characterized by rill and medium now duration
<br />b. U ""OS present under. 10Cied iully orland.lide erosion wiUI..2,~_casion8lly eroding
<br /> story not well developed <. Less tban 50"10 intensiv&- b. Wind erosion with depo- banks or beG
<br /> ly ~azed siUon in stream channels
<br /> .,' , d. Ordinary road and other
<br />liRA k~ J.;).(:;J, c&'i construction ~
<br />V (-10) (-10) (0) (0)
<br /> .. Area completely protect.. .. No culUvation .. No apparent .igns of .. Wide shallow channels
<br /> .d by veietaUon, ,ock b. No recent loggi.nc erosion with n., gradients .nd
<br /> frap,ents. litter c. Low intensity gra.dnc ~ short now duration
<br />b. Littl. opportunity fo, -- /" / h' b. Channels in massive
<br /> -=- ':~: (' -fj~/'
<br /> rainfall to reacb erodible , rock, large boulders, or /J(.'
<br /> material - '/~ ^- 'A.J'f'M> well veR'etated
<br /> ... _ -' '_;-,1.._....
<br /> ;1,; 'c."-/ /": r''';'1,A c. Artificially controlled
<br /> channehl
<br />Factort I /" " r-' . . ...;5
<br />value e. '-../ //
<br /> I Sublo'al (.) - (g) J? Sublo'.1 (h) - (i) 9 I TOTAL f'- - ,f..3
<br /> RATING - - - -, - ac.ft./sq. mi./yr.
<br />
<br />5,,"''>
<br />
<br />~
<br />
<br />(lns,ructions on rftverse)
<br />
<br />/,3 yc:[.,
<br />SHEET fl OF 12
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