Res. #15-036 - Approving Plans & Specs. & Ordering Ad. For Bids

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� r Descriptive Terminology Roy 10104 Standard D 2487-00 Particle Size Identification Classification of Soils for Engineering Purposes Boulders _ over 12' ,u11 (Unified Soil Classification System) Cobbles..._ 3'to 12' Gravel Coarse. .314'to 3' Fine ._No 4 to 314' Criteria for Assigning Group Symbols and Soils Classification Sand Group Names Using Laboratory Tests° Group " Coarse . .. . ...... -, No-4 to No 10 Symbol Group Name Medium No.10 to No.40 c Gravels Clean Gravels C Z 4 and 1:C � 3 ti GW Well-graded gravel" Fine No.40 to No.200 a More than 50%of Less than 5%fines° ° o c a Sill <No 200,Pt<4 or u m C„<4 and/or 1>C>3 GP Poorly graded gravel below'A'line rn c m coarse fraction -0=° � retained on Gravels with Fines Fines classify as ML or MH GM Silly ravel"r9 Clay••-• -• - - - - - .<No,200,PI Z 4 and e >ti rn No.4 sieve More Irian 12%fines° Fines class' as CL or CH GC Clayey avel°1a on or above'A'line 00).9$ Sands Clean Sands C°�6 and 1 <C< : 3 c SW Well-graded sand" Relative Density of cWc 5Q°�of more of Less than 5%fines I C <6 and/or t_Cc>3 c SP Poorly graded sand" Cohesionless Soils c coarse fraction Fines Bass as ML or MH SM Sill sand'a" Very loose., 0 to 4 BPF C3 O passes Sands with Fines Ih y ry E No.4 sieve More Than 12%1 Fines classify as CL or CH SC Clayey sand r9" Loose, 5 io 10 BPF m PI>7 and plots on or above'A'lino I CL Lean cls "r m Medium dense 11 to 30 BPF y= Sills and ClaysInorganic Dense _ 31 to 50 BPF Liquid limit PI<4 or plots below"A"finel ML Silt"' " Very dense over 50 BPF rn Nm o a Liquid < 075 id Ilmil-not dried less Ilion 50 Liquid limit-oven dried OL Organic day" o m w OL Organlc SUI Consistency"I m° of Cohesive Soils o N PI plots on or above'A"line CH Fat clay"r" Very soft O to 1 SPF E o Sills and days Inorganic 1? PI plots below'A'line MH Elastic sit"r^ Soft 2 to 3 BPF m z Liquid limit 50 or more Liquid limit-oven dried OH Organic day '" t Rather soli 4 l0 5 BPF o Organic < 0 75 ",n a Medium... 6 to 8 BPF in Liquid limit-not dried organic sit! Rather still .. _. 9 to 12 BPF Highly Organic Softs Primarily organic matter,dark In color and organic odor PT Peat Stiff .. 13 to 16 BPF a Based on the material passing The 3-in 175mm)sieve Very slit( . .. .. 17 to 30 BPF b If field sample contained cobbles or boulders or both add%vilh cobbles or boulders or boli Io group name Hard - over 30 BPF c P. = D.I Dro Cr=(O.)' Dip x D. d It soil contains 215%sand add"with sand'to group name a Gravels with 5 to 125.lines requite dual symbols GW-Gid wall-graded{ravel wigi sill Drilling Notes GW-GC well-graded grovel watt clay GP-GM poorly graded gravel vAlh sur Standard penetration test borings were advanced by 3o-or 6U-ID GP.GC poorly graded grovel with day hollow-stem augers unless noted otherwise,.telling water was used to I if fines classify as CL-ML,use dual symbol GC-GM or SC-SM dean out auger prior to samprmg only where indicated on logs Standard g It fines are organic,add'wdh organic Imes'to group name penetration lest borings are designated by the prefix'Sr(Split Tube) h It sod contains Z15%gravel,od l'wilh gravol'to grog name i Sands with 5 to 12%linos requite dual symbols All samples were taken with the standard 2'OD split-lube sampler ex- Svi-SM ems-graded send with sub cept where noted SW-SC wolr-graded send with day SP-SM poorly graded sand with sill Power auger borings were advanced by 4'or 6"diameter continuous- SP-SC poorly graded sand with clay light,solid-slam augers Soli classifications and strata depths were In- t 11 Aterberg limits plot In hatched even,soft is a CL-ML,silly clay ferred from disturbed samples augered to the surface and are,therefore. it if still contains 15 to 20%plus No.200 add'with sand"or with graver whichever Is predominant somewhat approximate Power auger borings are designated by the I 1f sod contains 2 30%flus No 7W,pteduminonity sand,add'sandy'to group name m t still contains 2 30% plus No 200 predominantly gravel add'gravelly"to group name prefix'B" n PI 2 4 and plots on or above-A-frna o PI<4 or pots below"A"the Hand auger borings were advanced manually with a 1"or 30'dlam p Pr plots on or abova'A'lino eler auger and were limited to the depth from which the auger could be q PI plots below'A'fine manually withdrawn Hand auger borings are indicated by the prefix'H' 60 BPF:Numbers indicate blows per foot recorded in standard penetration test,also known as'N'value The sampler was set 6'talo undisturbed 50 sol below the hollow-slam auger.Driving resistances were then counted .S •�`�e for second and third 6'increments and added to gel BPF Where they differed significantly.they are reported in the following form:2112 for the t. 40 second and third 6"Increments,respectively. IL , X 4' WH:WH Indicates the sampler penetrated sail under weight of hammer �W 30 and rods alone;driving riot required. e , WR: WR indicates the sampler penetrated soil under weight of rods Y0 alone;hammer weight and driving not required 0 a G�' MH r OH TW indicates thin-waded(undisturbed)lube sample I17 (- 10 , Note: All tests were run In general accordance with applicable ASTM 7 MH or OH standards 4r 0 0 10 16 20 30 40 50 60 70 80 90 100 110 Liquid Limit(LL) Laboratory Tests DD Dry density,pd OC Organic content.% WD Wet density.pd S Percent of saturation.% MCNatural moisture content. % SG Specific gravity LL Ligiufd limit.% C Cohesion.psi BRAUN PL Plastic limit-% (2) Angle of internal friction PI Plasticity index.% qu Unconfined compressive strength,psi P2000 %passing 200 sieve qp Pocket penetrometer strength,Isf I N T E RT EC