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<br />,~~~~.:' ~. , ! USE AND EXPUINATION OF SOIL INTERPRETATION SHEETS
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<br />,S.y1~ I NTROOUCT I ON ~~
<br />:''~a The lnterpretatlon sheets provide a brief Boll description, estimated sell
<br />~.-:; properties significant to engineering, suitability of Boll as source of selected f
<br />"?j'„~ material and features affectln use de ree of Boll limitation major Boll fea-
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<br />aFt` -~ tures affecting selected use, degree of soil limitations and major features
<br />?`;{~' ~!; affecting recreations usos, capability, woodland sultablilty, range silo, and
<br />~~. ~ wildlife suitability.
<br />;`--.~~.1~. The Interpretatfons will not eliminate the need for on-site sampling,
<br />testing, and study of specific sites for design and construction of engineering .;
<br />works and various usos. Tho interprotatlon sheets should be used ~rimarlly to
<br />~,',;;~ plan more detailed field investlgatlons to determine the conditions of the soli
<br />at the proposed site for the intended use.
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<br />:.,-1 ~"'. Tho interpretation shoats should bo used only with detailed soil surveys. .
<br />'that have boon prepared according to standard procedures of the National Coop-
<br />.. eratlve Survey. It Is not Intended that Choy bo usod with "Land-type surveys,".
<br />', low Intensity surveys, or general soil maps. The Interpretatfons are for solls;~;:'.
<br />in their natural silo and not for disturbed areas that are altered by cut or "
<br />fIII operation. '..
<br />" r When the lnterpretatlon shoats are usod in connection with delineated sot11~:'
<br />'. areas on soil maps, the Information pertains to the dominant soil for which "
<br />the soli area Is named. Other soils, too small In area to map out, may occur' ;C`'"
<br />' within the soil map area. Tho Intorpretetlons ordinarily do not apply to the ,
<br />Included solle. More detailed studios are required If smnil, specific silos '
<br />are to be developed or used within a given soil area. For example, a soli map
<br />. area bearing the Hama Wald loam, 0 to 3 percent slopes, also can Include small,-
<br />. unmoppable areas of other soils, such as Colby or Rago. The Interpretatfons
<br />apply only to the Weld part of the delineated soil area, and not to the ontlre'.-
<br />. sell area. '.
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<br />;'. SO I L DESCRIPTION '~ ~ 'l:, };.
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<br />' ` Thls brief doseriptlon points out the major layers in the soll.,proflle'"~c`..;.~?.'^;
<br />~~' ~ ;~;, ~~;: and doscrtbes the 6r main features. Amore specific soil description can be ''.':;~rF-::;.,,
<br />''obtained from the local Soll Conservation Servlco office, If Hooded. '''."'
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<br />ESTIMATED SOIL PROPERTIES SIGNIFICANT TO ENGINEERING
<br />'.Horizon Depth - Tho major parts of the soil profile are Indicated. Soil hors-'",r
<br />zons that are sl.mllar are grouped In this table. ''~-i''=
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<br />~',USOA Texture - Thu USDA texture Is based on the relative amounts of sand, silt,"
<br />-'. and clay In a soil, giving rise to tortural classes such as sand, sandy loam,
<br />.loam, clay loam, and clay. (USDA Handbook No. I8, Soil Survey Manual).
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