PERMFILE48585 - Laserfiche WebLink

Home Browse Search

U:S. DEPA,RTMENt OF AGRICULTURE PAVE 1 OF J NATURAL RESOURCES CONSERVATION SERVICE ` ~ 11121198 Endnate -- CONSTIUCTION MATERIALS CONSTRUCTION MATERIALS This report gives intonation about the soils as a aaarce of roadfill, aaod, gravel, sad topsoil. The snits are rated 'Good', 'Fair', mr 'Poor' to a source of roadfill sad topsoil. They are rated as a 'Probable' or 'Irprobable' source of aaod and gravel. The ratings are based oo soil properties end site featotea that affect the reroval of the soil sad ice sae as conrtruttioa uterial. Norul corpattioa, riror proceaairg, and other standard coaetraction practices are easared. Euh aotl is enluated to a depth of S or 6 feet. Roadtill is soil uterial that fa ercnated io ore place sad used fa road abaatrenta in another place. In this report, the soils are rated as a aaarce of roadfill for for erbarkurte, gerenlly leas than 6 feet 6ig6 and leas erecting it design than higher erbartunta. The ntirga are for the soil uterial belor the aarface layer to a depth of S or 6 feet. It is assured that soil layers rill be riaed during eacavatiag and spreading. Mary aofla bare layers of cootraetirg suitability ^ithir their profile. The report entitled Engineering lades Properties is also available sad it pro-idea detailed infarratior abort each Boil layer. This intonation can help deterrine the aaitability of esc6 layer for sae ea roadfill. The perforrance of soil after it is atabiliaed rich lire or caveat is sat considered in the ratings. The ratings are based oo soil properties, site teatrrea, sad obaened pertorrance of the soils. The thictoeaa of sui hble raterial is a ajar consideration. The ease of ercnatioo fa affected by large atoaea, a high rater table, sad elope. Noa cell the soil perform it place after it has been corpacted sad drained is deterriaed by its atrergth (aa inferred fror the engineering claasificatioa of the aoill and ahriak-arell potential. Soils rated 'Good' contain aigniticant arounta of aaod or gravel or bath. They have et least S feet of aaitable material, a for shrink-arell poteotial, ier cobbles sad atoaea, and alopea of IS perceot or lees. Depth to the rater table fie rove than y feet Soils rated 'Pair' have rare then JS percent silt- and clay-aiaed particles and here a plasticity of teas than 10. They brae a roderete ahriak-arell poteotial, alopea of IS to 15 percent, or rant' atones. Oepth to the rater table is I to J feet. Soils rated 'Poor' have a plasticity finder of rare than 10, a high ahrint-arell potential, any atones, or alopea of more then 15 percent. They are vet, and the depth to the rater table fie leas than I foot. These soils ray bare layers of suitable raterial, bat the raterial is leas than J feet thick. Sand and grovel ere aeturel aggregates aaitable for correrciel use rich a rinirur of processing. Sand and gravel are used in rent' kinds of construction. Specifications for each see vary ridely. In this report only the probability of lindiog uaterial in suitable quantity is evaluated. The auitebility of the raterial for specific purposes is not evaluated, nor are factors that effect e:ceration of the uterial. The properties aced to ereluete the soil es a source of nand or gravel are gradatimn of grain sines (aa indicated by the engineering claesitication of the eoill, the thickness of suitable uaterial, end the content of rock fragrents. Kinds of rock, acidity, and stratification ere given in the soil aeries deacriptione. Gradation of grain sires is gives in the Engineering Judea Properliea report. A soil rated es a 'Probable' source has a layer of clean aaod and gravel or a layer of sand or gravel that contains up to 12 perceot silty fines. This raterial rust be et least 0 feet thick and less than SO percent, by refight, large stones. All other soils are rated as an 'Irprobable' source. Coarse fragrents of soft bedrock, such as shale and siltstone, ere not considered to be send and gravel.