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� o`r5 11� l� , �3 <br /> Crest Engir.c>_ering Incorporat�ad I <br /> ' P.O. Ooz 976 <br /> 800 Peaile Jenacn 4ay �aI� � p D I <br /> .LaConneL, VA 98P57 � � U � li l�n � <br /> (206)S6b-1006 Fax �(206) 166-1310 � � <br /> Novembez z�, 1992 �`OV 3 0 1S^2 � �, <br /> C,1 �' '- " E'1G7ETT- : <br /> 8i11 Langus �� 1� UI[;�. F�:i..il Cc.ca,r <br /> Czonin HoWes� Inc. Q'�I rj �� �R, �� : <br /> 713 SE Bvexett�.Mall Ay., Ste. C ���� � <br /> �&vezett� -VA --96208 �� - 3 <br /> R6: GBOTECHNICAL 1N46STIGATION UF LOTS lli 12� AND 13� MT. VIEW !7 � <br /> S'lBDIVISION� EVERETT� VA. <br /> This lettex is vcittea puxsuant to youz zeqvest for a site investiqation o£ ' <br /> the thcee subicct lots�zegacding the 6eacing capacity oE the soils. <br /> On t�e date of tliis lettex� t pecfoxmed penetcomete= tests at 1-Eoot (depth) � <br /> intecvals tn a total depth of r_3ght feet in fouL separate test holes as shovn � <br /> on the accampanying plat map. The test holes vere dug by a ctandaxd size <br /> constzuction backhoe, <br /> The azea in question is appaiently a fill aeea. The fill has becn in place foz <br /> [epoitedly approxi[oatety thirty yeacs (per Beet Czon: � il/921. Ali Eouc holes <br /> demonstcated appcetiimately the same soil pxofil.e, vhich vould indicate that <br /> the fill is untform and homogeneons thxoughout the acea of the thzee lats in <br /> question. The soil pcofile shoued a one to [uo foot layez oF dark brom <br /> topsoil (sanay loaml, and belov that, a gcey loamy sand, vith tobbles and <br /> pe6bles. Due to the lazgely gxanular na[uxe af the soil, I vould considez iL's <br /> composltl.on vecy good foL suppoctinq tyFical house loeds. <br /> Th> cesults of the peaetzometec suzvey aze as follor+s: <br /> 0 - G': Typical allowable beazing ptessuce oE appxoximately 2,000 - 2,500 <br /> pernds pez sguace f� �t (psE). . <br /> 6' - B': Typlcal allovable beacing pcessure oE appzoximately 1,000 - :,500 <br /> psf. <br /> Contlnuous footings fox standaxd two stocy constxuetlon should not exezt long <br /> tecm loads of gceatec than 1�500 ps£ on the soils immediately beneath the <br /> � footinss, as long as the footings are at least 16�•inches wide at theic base. <br /> It is my undecsianding tha[ Cconin Homes, Inc. uses 16" vide footings as� <br /> standacd practice. Due to the distxibution ot the applied load ovez a lazge <br /> a=ea with inr.ceasing soil dcpth, the pcessuze on the soil six feet or gxeatec <br /> 6elow the footings will be faz less than 1,000 psf. <br /> I .4egaxding anticipated settlement, the upp•z six feet of soil should not settle <br /> any appieciable a�oount, iY appeacs to have been pzevious!y pzopecly campacred. <br /> The lowec soil hocizons may ezpezience a very small amount of seCtlement due <br /> to the inezeased load, houevex it is not anticipated to be detcimental becaose <br /> of the zeiative=y small load Lnccease, unifocmtty of the rtateztal <br /> 1 <br />