Laserfiche WebLink
I ,iwy z�. ��e � Northern, r��. <br /> ProHa No.24e-aa <br /> � <br /> A.2 Cut and Flll Rpu/nm�nts <br /> IWe anticipate that accavations on the order of t6irteen(13)fat in dept6 will be <br /> � rcquired for the placement of the proposed UST's,and approximuely six and one-half(6 K) <br /> feet to rcach an adequate bearing soit for foundation placemeM, as slawn by tat pit M3. <br /> Whae possible,the accavation walts deeper than four(4)feet shoutd be sbped to s grade of <br /> � 1H:1 V(Horizontal : Vadcal)or flatta. We raommeud tdat the co�uractor provide <br /> temporary shoring to stabiliu accavatioa walis dapa then four(4)fat if they canaot be <br /> witably sloped. The stability of the wu aad cut slopea should be observed by a qusli6ed <br /> � geotadoical engine�/Qeologist during wnsvuction to provide recommendatioos aa requ'ved. <br /> Stockpilcd 511 slopes slwuld aot be steepa than 1H:1 V(Horizoetal : VeRiat).Fiaal <br /> � accavuion slopes or fill slopes should be graded w aa angle of 2FI:I V or 8atta.We <br /> Rcommend tlmt exposed soils be immediuely hydrosaded aad/or planted with vegeta6on <br /> aRer conswction. <br /> [ Iieavy groundwater sapage was observed at appro�dmately sevm and one�alf(7 44) <br /> feet to eight(8)fat bgs during our Seld investigatioa T6ere is a potmtial for eneouMering it <br /> u shallower elevafion during conswction. Drainage should be provided in loaatioas where <br /> [_ cut slopa or utility excavations intercept any grouad water. <br /> T�rewlts of our Seld investigation indicate that some of the on-site unwntrolled SIl <br /> t_ aod near surface fine-grained aative soils(silty san�arc wuuitable for use u structural 511. <br /> Some of the unconuolled 611 observed on-site may be reused as suucnual 611 if it is 6roe of <br /> ` coaiuuction debris,garbage aad organic materials,and if the moisture co�ueat of the fill <br /> Lmaterial can be maintained at or just below t6e optimum moisture content for this muerisl. <br /> The oo-site,aative sand(SP)and sandy gravel(GP)may be reused as strucmral fill if placed <br /> � in accordance with our recommendations. <br /> Due W the fines coMent of some of the on-site soils,adequate�mpactioa may prove <br /> � difficult if the moisture co�ent esnnot be wntrolled.Under t6we cira�mstanas,or if <br /> additional fill needs to be imported to the site,we rocommend that ttte materisl conform to the i <br /> following gradation: i <br /> l ' v i Fercent Passina <br /> � 4 inch 1� <br /> #q 25-75 <br /> #200 5.0 maximum.Bucd en the <br /> fraction paui.ig the f�4 sie�rc. <br /> � The fill should be placed in maximum eight(8)inch thick looae Gfts aad oompacted to <br /> � at least 95%of the maximum dry deasity value u detmnirtod by ASTM D 1557. <br /> / <br /> � 6 <br />