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Home My WebLink About20151251 Ver 1_Div7_GEU_BRDG0146_Summit_Inventory_Revised_20151203STATE OF 1�ORTH CAROLII�A DEPARTMENT OF TRA11tSPORTATIOIV DIVISION OF HIGHWAYS GEOTECH11tICAL ENGI11tEERI1VG UNIT STR UCTURE S UB S URFA CE I1� T�ES TI GA TI01� PROJ. REFERENCE N0. I�BP.7.R.63 FeAa PROJ. �a C 0 U N T Y ALAMANCE PROJECT DESCRIPTION Bridge 11to. l46 on SR 2363 (Beale Rd.) over Rock Creek C0IVTENTS SHEET DESCRIPTION I TITLE SHEET 2, 2A LEGEND 3 SITE PLAN 4-5 CROSS SECTIONS 6-12 BORING LOGS INVESTIGATED BY B• CHECKED BY D• P.G. P.E. PERSONNEL A. May, EI L. Gonzalez—Castillo C. Husketh D. Dewey, P.E. J. Terry $UBMITTED BY Summit Design and Engineering Services, PLLC I DATE SEPTEMBER, 2014 CA UTION NOTICE THE Sl1BSl1RFGCE INFORMATION ANO THE Sl1B5l1RFACE INVESiIGATION ON WHICN IT IS BASED WERE MAOE FOR THE PIIRPOSE OF PREPARING THE SCOPE OF WORK TO BE INLLUDE� IN TME REOUEST FOR PROPOSAI. THE VARIOl15 FIEL� BORINC LOGS. ROCK CORES. AND SOIL TEST �ATA AVAILABLE MAY BE REVIEWE� OR INSPECTE� IN RALEIGH BY CONiACTING THE N. C. �EPARTMENT OF TRANSPORTATION, GEOTECHNICAL ENGINEERING UNIT AT f9191'107-6850. THE SUBSURFACE PlANS AND REPORTS.FIELO BORING LOGS. ROCK CORES. AND SOIL TEST DATA ARE NOT PART OF THE CONTRACT. SOIL 4N0 ROCK BOUN�4RIE5 WITNIN A BOREHOLE ARE BASE� ON GEOTECHNICAL INTERPRETATION UNlE55 ENCOUNTERED IN A SAMP�E. INTERPRETED BOUNOARIES MAY NOT NECESSARILY REFLECT ACTUAL SUBSURFACE CONOITIONS BETWEEN SAMPLE� STRdTd, 4ND BOREHOLE MFORMATION MAY NOT NECESSARILY REFLECT ACTUAI SUBSURFACE CONDITIONS BETWEEN BORINGS. THE LABORATORY SAMPLE DATA AND THE IN SITU IIN-PI,ACEI TEST DATA CAN BE RELIE� ON ONLY TO THE DEGREE OF RELIABILITY INHERENT IN THE STANDARD TEST METHOD. THE OBSERVED WATER LEVELS OR SOIL MOISTURE CONDITIONS INDICaTED IN iHE SUBSURFACE INVESTIGdTI0N5 ARE AS RECOROED AT THE TIME OF THE INVESiIGAT10N. THESE WATER LEVELS OR SOIL MOISTIIRE CON�ITIONS MAY VARY CONSI�ERABLY WITH TIME ACCOR�ING i0 CLIM4TIC CONOITIONS INCLl101NG TEMPER4TlIRES, PRECIPITdTiON, AN� WIND. 45 WELI 45 OTHER NON-CI,IMATIC FpCTORS. TXE OEPARTMENT �OES NOT WARRANT OR Gl1ARANTEE TXE SIIFFICIENCY OR ACCURACY OF THE INVESTIGdT10N M4DE. OR OPINION OF THE DEPARTMENT AS TO THE TYPE OF MATERIAl.S 4ND CONOITIONS TO BE ENCOUNTERE�. TNE BI�DER OP CONTRACTOR IS CAUTIONED TO MAKE SUCH INDEPENDENT SUBSURFACE INVESTIGaT10N5 AS HE DEEAIS NECESSARY i0 SATISFY HIMSELF AS TO CONDITIONS TO BE ENCOUNTERED ON THE PROJECT. THE CONTRACiOR SHALL HAVE NO CLAIM FOR ADDIiIONAL COMPENSATION OR FOR AN E%TENSION OF TIME FOR ANY REASON RESULTING FROM THE ACTl1AL CONOITIONS ENCOUNTERE� AT TME SITE 01FFERING FROM TNOSE INOICATEO IN THE SUBSIIRFACE INFORMATION. NOTE - THE INFORMATION CONTAINED HEREIN IS NOT IMPLIED OR GUARANTEED BY THE N. C. DEPARTMEN7 OF TRANSPORTATION 45 BEING 4CCl1RATE NOR IT IS CONSI�ERED TO BE PART OF THE PLANS, SPECIFILATIONS. OR CONTRACT FOR THE PROJECT. NOTE - BY HAVING REal1ESTE� THIS INFORMATION THE CONTRACTOR SPELIFICALLY WAIVES ANY CLAIMS FOR INCREASED COMPENSATION OR EXTENSION OF TIME BASED ON DIFFERENCES BETWEEN THE CONDITIONS IN�ICATED HEREIN AND THE ACTUAL CONDITIONS AT THE PROJECT SITE. DRAWN BY: B• Worley, P.G, B. Smith, P.G., %' M. Brandon, LPS PROJECT REFERENCE NOe SHEET N0. 17BPo7oRa99 I � I'3�lfg°d°1H[ �AB$�1L,bI�.� �lE1�A]E8°d°i�l[lEN°�° �1F °�°ff8AN�1[��1[k°d°P,°Il"B�I� 1��d�I�3 �1F IH[��1H[�.�� lE�°l[°]E�I�[1�Td�F��, ]Ele��bi�7l�lEffBb�� Ti`�]['ll° �� fildN� 1�v�`lJll1\ 1L./lli`l7�JL'�AV�y �1LG�1�'JL�y .JllA�"1Lll�i��e�y .fi1AW� .fi\��1I�1L'e��L�,ll��l�'� SOIL DESCRIPTION GRRDATION wEu_ cRAOEo - woicalEs A caoo r�EPRESENrAr�oN oF PFla1ic�E sizEs FROM FwE ro caFlRSE. SOIL IS CONSIDER[D i0 BC THE UNCONSOLIDATE�. SEMFCONSGL��ATEO.OR WEATHERCO EaRTFI MATERIALS UNIFORM -]NDICATES THAT SOIL Pt1RTICLES ARE ALL APPROXIMRTFLY THE SAME S[Z6 (ALSO THAT CAN BE PENEiRATCO WLTH A CONTINUOUS FLIGFIT POWER AUGER,AND YIELD LESS THaN POORLY GRA�E�) le0 BLOWS PEF FOOT ACCORDING 10 STFNDAHO PENETRFlTION TEST fFaPSHTO T206, ASTM D-1586). SOIL GF1P-GRA�EO - IN�ICFITES A MIXTURE OF UNIFORM PART[CLCS OF TWO OR MORE S[ZCS. a.assiFUAnoN u eASFo oN rnE AasNro svsrEM. eas�c oEscaiPnoNs cENERa��v si�Ai_� iNaunE: ANGULARITY OF GRQINS roNsrsTFNev, co�oe, rFxruRE. Mo�sruaE, aasNro a_ass�F�.r,ArmN, allo oTHEa PERnNENr FACToas sucH a5 MINERALOC]CaL COMPOSITION, ANGULaRI1Y, STFUCTURF, PLt1ST[CI1Y. ETC. EXAMPLB TI1C RNGULARITY OR ROUNDNESS 0� SO]L GRAINS IS DCSIGNAiEO 6Y TI-IE TERMS ANGULAR, VtRY ST/FF,GRAY.ALTY CIAY,M015T WI7H IN7EHOEDDEO FME SAND lAYERS.HIGHLY PIASTIC,A-1-6 SUBANGIJLP.R, SUDROUNOEO, OR ROUNOEL�. SOIL LEGEND AND AASHTO CLASSIFICATION MINERALOGICAL COMPOSITION GENERAL GRANULAR MATERIALS S7LT-CLAY MFITER[F1L5 MINFRf1L NFlMES SUCH P-5 ClUF1RTZ, FELOSPAR, MILA, TALC, KAOLIN, ETC, qRE USEO -N OESCR[�'IONS CLF1S5. (� 35% PASSSNG "2801 (> 35% PFISSING "2mml ORGANIC MATERiALS WHENEVER THEY ARE CONS[DERE� OF SIGN]FIC4NCE. cRouP A i A-3 A z A-4 A-5 � R-e A-� n_i,a_z A-4.Q-a COMPRESSIBILITY CLA55. p-�-a Fl-�-h Fl-2-4 q-2-5�,A-2-6 A-2-7 I A-3 A 6' A� SL[GHf._Y C'�MFRESS'bLE L1UUI0 L1MIT LESS 'fHqN 31 SYMBOL ''�'� MOOE4Flf�LY �OMPRESSIBLE LLGULO L1M]T EOii�L TO 3t-5m ,,�L HIG:ILY tiOMPRESSIBLE LiGULO LIM1T GRcF�TeR fHFlN 5B 0000 0000 • � ` �� " �`� ��.e.. ��::v _ _ • • �.._' �.... . —. z PAssrNc PERCENTQGE OF MQTERIAL sz�T- ° i� sm wx cRANu�AR Muck. eRANu�AR 51��i� - c�Av CLAv ORGANIC MATER]RL O1HER MRTERIAL " 40 3e MX 50 MX 51 MN SOILS PEAT SOILS SOiLS SDILS ' z00 I5 MX 25 MX 10 MX 35 MX 35 Mx 35 MX 35 MX 36 MN 36 MN 36 MN 36 MN 1RF1CC OF ORGANIC MATTER `L - 3% 3- 5% TR41CC I- lm% � L]TTLE ORGAN7C MATTER 3- 5% 5- 12% LITTLE LB - 2m% LIOUI� LIMIi 4a MX 4! MN 4m MX 41 MN 40 MH 4t MN 4m MX Ql MN MODERFliELY ORGANIC 5- 1m% 12 - 20% SOME 2m -?5% SOILS W1TH PLASiIC iN�E% 6 MX NP �0 M% IB Mx LI MN Il MN Im M% l0 MX ll MN IL MN LITTLE OR H7GHLY ORGFINIC >l0% >20% HIGHLY 35% F1Np FlBOVE HIGHLY GROUP 7NOC% 0 m 0 4 MX 8 M% L2 MH 16 MX No Mx MOOERATE pRGF�NIL' GRQUN� W(�TEFj AMOUNTS OF 50II..S 11511RL TYPES STONE FRAGS. ORGFINIL � WATER LEVEL IN BORE HOLE IMMEO[FITELY AFTER ORILLING OF MA,IOR GRRVEL,FlNO FINE SILTY OR CLAYEY SILTY CLAYEY SF1ND GRAVEL F1ND SAND SOIL3 SOILS MATTER nArea�A�s sallo � srAlte wArEH �eve� AFrER 24 Huo�S cEN. eAnNc P AS 4 EXCELLENT 70 GOOD FpIR TO POOR FAIR TO POOR UNSUiTAP,LE � W PEFCHED WQTER,SATURQTEC ZONE,OR WP=ER 6E4FING STRqTA SUBGRAOE POOR /� �� P] OF A-7-5 gUBGROUP IS < LL - 3B ;PI Or A-7-6 SUBGROUP 1S > LL - 3B U UU ' SPRIN6 �F SEEF CONSISTENCY OR DENSENESS MISCELLQNEOUS SYMBOLS aAN�e oF s1ANOARo RANeE oF uNcoNFmE❑ � rFsr eo�:N� FRiMARY SOIL TYPE COMPqCTNE55 OR pEyETRATION FES[STENCE COMPRESSIVE STFENG-H �- ROqOWAY EMBANKMENi (RE) �oalonr TEST BORING CONSISTENCY (N-VALUEI (TONS/i Tz I L WIiH �:�O1L GES'CR1P110N vsT PM* W/ LORE GENERALLY VERY LOOSE <4 SOIL SYMBOL � AUGER BORWG � SPT N-VAWE GRANULAR LOOSE 4 TO 1� 1� MECJIUM OENSE N�A /\ R�F SPT REFUSAt MATERIAL lm TO 3m qRTIFIC]AL FILL (AF)OTHER �� COFE BORING WON-COHESIVE7 DENSE 3C� TO 5m THAN ROAOWAY EMBANKMENT '7 VERY DENSF >50 MON[TORING WELL � � INFERREG SOIL BOUNDARY MWO VERY SOFT <2 <ID.25 GENERFlLLY SOFT 2 TO 4 m.25 TO B.5P PIEZOMETEF S1LT-CLAY MEDIUM STIFF 4 TO 8 �%�— INFERRED ROCK LME Q �5 TO I.0 WSTqLLATION MATCRIAL SI[F� S TO 15 � TO 2 r.r qLUJVIAL S�IL BOUNOARY O SLOPE INDI�ATOR (Ci7HESNEI VERY STIFF IS i0 3B 2 70 4 INSTFILLFITION HF1RD >3d >4 zs/mzs �iP &❑Ip CIIRECTI�N OF TEXTURE OR GRAIN SIZE � Ro�K srr�ucruREs � coNE PENErROMET_� rEST U.S. ST0. SIEVE SIZE 4 1� 4� 6� 28B D� • SOUNDMG ROD OPENING (MM) 4.76 2.�0 �.42 4.25 B.m75 m.053 ABBREVIATIONS 80ULOER C088LE GRAVEL CSAN�E SF1ND SILT i=LAY AR - AUGER REFUSAL ME�.- MED[UM VST - VANE SHEFIR -FST (BLDR,1 (COB.) (GRJ (CSE. SD.) (F SD.) �SL.) (CLJ BT - BORING TERMINATE� MICFl. - MICACEOUS wEA. - WEt1THERED CL.- CLAY MO�.- MODERATELY �'- UNIT WEIGHT GRAIN MM 3m5 75 2.� m.25 8=m5 0.885 CPT - CONE PENETRAT[ON TEST NP - NON PLASTIC �'d- DRY UNIT wE[GHT SIZE IN. 12 3 CS6 - COARSE ORG.- ORGANIC SOIL MOISTURE - CORRELATION OF TERMS oMr - oi�AroMerea resr PMr - PRessuReMereR resr saMP�e AeaRev�rig�v� DPT - OYNAMIC PENETRAT[ON TEST SAP.- SAPROLITIC 5- BULK SOIL MOISTURE SCALE FIELO MOISTURE GUIDE FOR FIELO MOISTURE DESCRIFiIGN - VO70 RATIO SD.- S/aND,SANDY 55 - SPLIT SPOON (ATTERBERG LIMITSI �ESCRIPT]ON F- FINE SL.- SILT,SILTY ST - SHELBY TUBE - SATURFITEO - 11SUALLY LI�l1I0;VERY WET,USUALLY FU55.- FOSSILIFEROUS SLI.- SLIGHTLY RS - ROCK (SAT.1 FRCiM BELOW THE GROUNO WF1TEft TABLE FRAC.- FRALTURELI,FRFICTURES TCR - TRICONE REFUSFIL RT - RECOMPqCTEO TRI4XIFIL LL LI�UIO LIMIT FRAGS.- FRAGMFNTS �v - MOISTURE CONTENT C8R - CALIFORNIA BEARING PLASTIC � HI.� H[Gh:LY V- VERY RnT10 RANGE - WET -(W) SEMISOLID:REOUIRES ORYING TO �F�� ArTAZN oP;�MUM MozsTURE EOUIPMENT USED ON SUBJECT PROJECT PI.. PLAST[C LIMIT LIRILL UMTS: AOVAN'L]NG TOOLS: NRMME� T1'PE: OM _ OPTIMUM MOISTURE - MOIST -(M7 S�LIO;AT OR NEAR OPT[MUM MOISTURE � l�UTOMqT[•� � MFlNUf1L SL SHRINKAGE LIMIT � MOBILE 8- ❑ CLF1Y BITS REOUIRES FaDDITIONRL WATER TO u 6"CONTINUOUS FL]GHT AUGEF CORE SIZE - ORY -(�l qTTA1N OPTIMUM MOISTURE � BK-51 � g"HOLLOW AUGERS �-g PLASTICITY � CME-45m ❑ HaRo Faceo F�NceR e�Ts N ❑- PL4i5i'If[TY INCEX (PI) �RY STRENGTH � TUNG.-CqRBI�E INSERTS H— NONPLASTI�� -5 VERY LOW C CME-550 � LOW PLASTICITY 6-I5 SLIGHI' ❑X CASING ❑X W/ AOVANCER r+ANo Too�s. MEO.PLASTICITY 16-25 MED[UM � PORTqBLE HOIST � TRICONE "STEEL TEETH � POST HOLE D[GI:FR HIGH PLF15T1CITY 26 OF MORE HIGH COLOR � Diedrich D-50 ❑ ra�coNE 2�s�s °ruN1.-c�Rs. ❑ NANo auceR oescazarzoNs MAv zNcwoe co�oR oR co�oR coMeiNArzoNs �rAN, Reo, vE��ow-BRowN, ewE-oRAvi. � ❑ coRE e[r ❑ souNome Rao � � � vANE sNEAa rFs1 MOOIFIERS SUCH AS LIGHT,�FIRK,STREAKE�,ETC.FIRE USE❑ TO �ESCRIBE APPEARANCE. ❑ REVISED 09/23/09 PROJECT REFERENCE NOe SHEET NOa 17BPo7oRo49 2A laT�ffg°�°ff� �Affg�1L1[Io1A �➢]E1PAffg°�°l�l[IEIoI`"II" �1F '7l°ffB�I��l��ff8`"II°A°�°��I� II�d�V��N �1F �[d�II�[Wr�� 1��°l[[°lE�'1H[Nd��]L IEIv��dl�lElEff�d�1� �JN��I° ��e ��u/ �� lleu'J�SuJ��9 �'�e1��y ��'i�u��v/lle�y �� u'J�� ROCK DESCRIPTION TERMS AND DEFINITIONS HARo Ro�K �s NON-caAsrA� P�ArN MAreRiA� rHAr �F rEslEo.wou�o nE�o sP1 ReFusA�.AN mFERReo A��uvtuM iA�wv.�- sot�s rHAr HAVE eeEN rRANSPor�reo ev wArrr�. RocK �mE iNmcAres rHE �EVE� Ar wH�cH NON-coAsrA� P�A�N MArER�A� wou�o nE�o sPr REFusA�. SPT REFUSAL IS PENETRAT[ON BY q SPLIT SPOON SAMPLER EOUAL TO OR LESS THF1N 0.1 FOOT PER 60 BLOWS. AOUIFER - f1 WATER BERRING FORMFlTION OR STRATGI. [N NON�COFISTAL PLFIIN MFITERIAL, THE TRFINSITION BETWEEN SOIL ANO ROCK IS OFTEN REPRESENTECI 6Y F1 ZONE OF WEATHERE� ROCK. FiRENqCE0U5 - aPPL1E0 TO ROCKS THAT HFlVE BEEN OERIVEO FROM SaNO GR THAi CONTP.IN SANIJ. ROCK MATERIALS t1Re TYPICt1L.LY CIV;OF� AS FOLLOWS: qRGILLaCE0U5 - APPLIED TO ALL ROCKS Ok SUBSTqNCES COMPOSED OF CLAY MINERALS, WEATHEREO -�!� NON-COASTFIL PLAW MFITERIAL THF1T WOUL� Y[ELO SPT N VFILUES > te0 OR HAVING A NOTABLE PROPORTION OF CLAY IN THEIk COMPOSITION.AS SHFlLE.SLATE.ETC. ROCK (WRl - - gLOWS PER FOOT IF TESTE�. ARTESIRN - GROUND Wt1TCR THAT IS UNDER SUFFICIENT PRESSURE i0 RISE ABOVE THE LEVR �. / FINE TO CORRSE GRAM IGNEOUS AND METAMORPHIC ROCK THqT QT WHICH IT LS ENCOUNTERED.BUT WHICH OOES NOT NECESSARILY R]SE TO OR ABOVE THE CRYSTALLWE � WOULD YIELD SPT REFUSAL IF TESTED. ROCK 1YPE ]NCLU�ES GRaMT6 GROUND SURFACE. ROCK (CR) � i � � i � GNE[SS, GABBRO, SCHIST, ETC. CALCFlREOUS (CALC.I - SO[LS THFlT CONTA]N APPRECIABLE AMOUN i S OF CALCIUM CAR80NF1TL. FINE TO COARSE GRt1IN METaMORPHIL ANO NON-COASTAL PLAIN NON-CRYSTALLINE — -- SEDIMENTt1RY ROCK iHAT WOULO YE[LO SFT REFUSAL [F TES1E0. ROCK TYPE COLLl1V1UM - ROCK FRAGMENTS MIxEO WITH SOIL DEPOSITED BY GRAVITY ON SLOPE OR RT BOTTOM ROCK MCPo WCWDES FHVLL[T6 SLA7E. SAN�SIONE, E7C. OF SLOPE. L"UASTAL PLAIN COF1SiqL PLAIN SE�[MENTS CEMENTE� INTO ROCK,BUT MF1Y NOT Y[ELO CORE RECOVERY (REC.)- TOTAL LENGTH OF F1LL MATER[F1L RECOVEFE� M THE CORE BFIRREL OIV[OEO BY TOTFIL SEDIMENTARY ROCK SPT REFUSFIL ROCK TYPE INCLU�ES LFMESTONE,SFINDSTONE,CEMENTEO LENGTH OF CORE RUN AN� EXPRESSE� AS A FERCENTFIGE. (CP) SHELL BE�S, ETC. W EA T HE RIN G oiKe - a raeu�aR eoov oF leNeous RocK rHar curs acRoss rHe srRucruRe oF ao�Flc�N� ROCKS OH CUTS MASSIVE ROCK. FRESH ROCK FRESH, CRYSTALS BR[GHT, FEW JOINTS MAY SHOW S�]GHT STAIMNG. ROCK RMGS UNOER ❑�p - THE ANGLE F1T WHICH Fl STRFITUM OR F1NY PLANAR FEATURE IS INCLINEO FROM TFIE HFIMMER IF CRYSTFILLINE. HORIZONTFIL. VERY SLIGHT ROCK GENERALLY FRESH.JOINTS STla]NED,SOME JOINTS MG1Y SHOW THIN CLFlY COATINGS IF OPEN. OIP OIRECTLON (OIP FIZIMUTM - THE D[RECiION OR BEARING OF THE HORIZONTFIL iRACE OF IV SLI.) CRYSTaLS ON R BROKEN SPECIMEN FACE SHINE BRIGHTLY. ROCK RINGS UNDER HFaMMER BLOWS IF THE L[NE OF �IP.MEASURE� CLOCKWISE FROM NORTH. OF A CRYSTqLL[NE NATURE. FFIULT - A FRACTURE OR FRACTURE ZONE FILONG WH[CH THERE HAS BEEN C115PLALEMENT OF T�1E SLIGHT ROCK GENERFiLLY FRESH,JOINTS S7AINED AND �ISLOLORt1TI0N EXTENDS INTO ROCK UP TO SIDES RELATNE TO ONE ANOTHER PqRALLEL TO THE FRqCTURE. (SL[.) tINCFI. OPEN JGINTS MAY CONTqIN CLAV. IN GRANITOID ROCKS SOME OCCASIONAL FEL�SPAR CRYSTqLS F1RE OULL ANO �iSCOLORE�. CRYSTALLINE ROCKS RING UN�ER HFIMMER BLOWS. FISS[LE - A F'ROPERTY OF SPLITTING RLONG CLOSELY SPACED PFlRlaLLEL PLFINE�. MODERATE SIGNIFICt1NT PORTIONS UF ROCK SHOW DISCOLOFATION ANO WEATHERING EFFECTS. [N FLOAT - ROCK FRFaGMENTS ON SURFqCE NEAR THE[R OR[GiNAL POSITION AND LISLOUGcO FROM (M00.) GRF1N[TOI� ROL'KS, M�ST FEL�SPARS ARE OULL ANO OISCOLOREO, SOME SHOW CLF1Y. ROCK HAS PFIRENT MATERIFIL. DULL SOUNO UNDER HAMMER BLOWS AND SHOWS S[GNIFICANT LOSS OF STRENGTH q5 COMPARED WITH FRESH ROCK. FLOOD PLAIN (FP)- Lt1N0 BOROERING A STREAM,BUILT OF SEDIMENTS DEPOSITED BY THE STREFIM. MODERAIELY ALL ROCK EXCEPT OUARTZ DISCOLORED OR STAINED. IN GRRNITOID ROCKS,ALL FELUSPARS DULL SEVERE AND D[SCOLORED RND A MFIJORITY SHOW KqOL[NIZqTION. ROCK SHOWS SEVERE LOSS OF STRENGiH �ORMATION (FMJ - F1 MAPPABLE GE�LOGIL 11NIT iHFlT CF1N BE RECOGNIZC� F1N� TRACE� IN (M00. SEV.) ANO CAN BE EXCFIVFITEO WITH A GEOLOG[ST'S PICK. FOIX G[VES "CLl1NK' SOUNO WHEN STRUCK. THE FIELO. I� TES7E0 WOUL� YIELO SPT kEFUSAL JOINT - FRFaCTURE IN ROCK FaLONG WH]CH NO aPPRECIaBLE MOVEMENT HAS OCCURREO. SEVERE ALL ROCK ExCEPT OUARTZ DISIOLORE� OR STAINED.ROCK FABRIC CLEt1R FaND EVIGENT 8UT REDUCE� LEDGE - t1 SHELF-L[KE FIDGE OR PROJECTION OF ROCK WHOSE THtCKNESS IS SMALL CCMPAREO TO (SEV.) W STRENGTH TO STRONG SOIL. IN GRFINITOIO ROCKS F1LL FEL�SPFIRS F1RE KAOLIN[ZEO TO SOME ITS LATERAL EXTENT. ExTENT. SOME FRAGMENTS OF STRONG ROCK USUALLY REMFIIN. IF TESTED YIELOS SPi N VALUES J IBP� BPF LENS - A BODY OF SO[L OR ROCK THAT THINS OUT IN ONE OR MORE DIRECTIONS. VERY SEVERE ALL ROCK EXCEPT OUFIRTZ DISCOLORE� OR STqINEO. ROCK FFIBRIC ELEMENTS ARE DISCERNLBLE BUT MOTTLEO IMOTJ - IRREGULFIRLY MARKEO W[TH SPOTS OF OI�FERENT COLORS.MOTTLING W (V SEV.1 THE MPSS IS EFFECIIVELY REDUCEO TO SOIL STFlTUS,WIIH ONLY FRqGMENTS OF STRUNG ROCK �OILS USUALLY IN�ICATES POOR AERFaT]ON ANO LACK OF G000 ORA]NFaGE. REMAINING. SAPROL7TE 75 AN EXAMPLE OF ROCK WEATHERECI TO A �EGREE SUCH iHF1T ONLY MINOR PERCHCO WATER - WATER MA]NTAINE� FIBOVE THE NORMAL GROUNO WATER LEVEL 13Y THE FRCSCNC� OF F1N VESTIGES OF THE ORIGINFIL ROCK FABRIC REMFIIN. IF TESTEO YIELDS SPT N VALUES < 18(� BPF 1NTF�'VEN[NG [MPERVIOUS STFATUM. COMFI.F.TF ROCK FE�UCEG TQ SOIL ROCK FqBR]C NOT �ISCERNIRLE.nR �ISCERNIBLE ONLY W SMALL ANO RES[DUF1L IRES.)SCIL - SOIL FORME� IN PLFICE BY THE WEATHERING OF ROCK. SCt1�TEREO CONCENTRqT]ONS. f�UlaRTZ MAY BE PRESENT Ga5 DfKES OR STR[NGERS. SAPROLITE [5 ROCK fJUqL[TY DESIGNATION (R007- A MEFSURE OF ROCK OUFILITY DESCRIBED 6Y TOTqL LENGiH OF AI_SC� AN EXAMPLE. ROCK SEGMENTS EOUAL TO OR GREATER THAN 4 INCHES DIVIDE� BY THE TOTaL LEN,TrI OF COGE RUN AND ROCK HARDNESS ExPResseo As A PERCENTA�e. VEFY Ht1F0 CFaNNOT BE SCRATCHE� BY KNIFE UR SHARP PICK. BREAKWG OF HAN� SPECIMENS REOUIRES S4IPROLITE (SAP.)- RESIDUFIL SO[L THAT RETqINS THE RELIC STRUCTURE OR FPBR[C OF THE SEVERAL HAR� BLOWS OF THE GEOLOGIST'S PICK. PARENT ROCK. SILL - AN INTRUSIVE BO�Y OF IGNEOUS ROCK OF FaPPROxIMF1TELY UNIFORM THICKNESS AN� HPRO �AN BE SCRATCHE� BY KNIFE OR PICK ONLY WITH DIFFICULTY. HARO HAMMER BLOWS REOUIRED RELAIIVELY THIN COMPFIRED WITH ITS LFITERPL EXTENT,THF1i HF1S BEEN EMPLf10ED PFlRALLEL TO �ETACH HF1N� SPECIMFN. TO THE BE�OING OR SCHISTOS]TY OF THE INTRU�EO ROCKS. MOOERATELY CFlN BE SCRATCHEO BY KMFE OR F[IX. GOUGES OR GROOVES TO 0.25 INCHES DEEP CAN BE SL[CKENS]�E - POLISHED F1ND STRIATE� SURFACE THAT RESULTS FROM FRICTION FlLONG A FqULT OR HqRD EXCAVF�TED BY HAR� BLOW OF A GEOLOG7ST'S PICK. HAND SPECIMENS CAN BE DETqCHED SLIP PLANE. BY MODERATE BLOWS. ME�NM CF1N BE GROOVE� OR GOUGED 0.05 INCHES OEEP BY F[RM PRESSUkE OF KN1FE OR P[CK PO[NT. STqN�F1R0 PENETRATION TEST IPENETRFITION RESISTANCElISPTI- NUMBER OF BLOWS (N OR BPFIOF HARO CAN BE EXCAVFaTEO IN SMALL CHIPS TO PEICES IINCFI MAXIMUM SIZE BY Ht1RD BLOWS OF THE A 14a LB.HAMMER FaLLWG 3m INCHES REOUIRE� TO PRODUCE A PENETRt1TI0N OF tF00T WTO SOIL WITH POINT OF Fl GEOLOGIST'S P7CK. A 2�NCH OUTS!DE DIFIMETER SPLIT SPOON SFlMPLER. SPT REFUSAL [S PENETRATION EOUFIL TO OR LESS THF1N 0.1 FOOT PER 60 BLOWS. SOFT CAN BE GROVE� OR GOUGE� REAOILY BY KNIFE OR PICK. CF1N BE EXCAVATE� IN FRAGMENTS FROM CHIPS TO SEVERaL INCHES IN S1ZE BY MODERRTE BLOWS OF A PICK POINT. SMALL,THIN STRAiq CORE HECOVERY (SPEC.1- TOTPL LENGTN OF STRATA MATERIAL RECOVEHED OIVLDEO BY TOTAL LENGIH PIErES CAN BE BROKEN BY FINGER PRESSURE. OF STRFITUM ANO EXPRESSEO F15 F1 PERCENTFaGE. VERY CAN BE CFIRVE� WITN KN[FE. CF1N 8E ExCF1VFl?E� REFI�]LY W[iH PO7NT OF PICK. P[ECES I MCH SiRATFI ROCK OUPLITY OE51GNPi[ON (SR�OI- P MEFISUFE OF ROCK OUFILITY OESCRBEO BY SOFI OR MORE Iu THI'LKNESS CFlN BE 3FOK�N BY FLNGER PRESSURE. CFaN BE SCRaTCHEO REFlOiLY BY T�TqL LENGTH OF ROCK SEGMENTS WITHIN A STRlaTUM EOUAL TO OR G�FATER THlaN 4 INC:IFS OIVIDF.�� RY THF TOTFlL LENGTH OF S1RaTFl aND EXPRESSED aS R PERCENTFlGE. FINGERNaIL.. FRACTURE SPACING BEDDING TOPsoi� iTs.�- sur�FACE soi�5 usuA��v coNTA�Nm� oR�ANzc MATreR. T,RM THICKNESS 7ERM SPRC[NG �-- BENCH MARK� TBM "G" pain hed on NE corner of ex's"Ing Br. 1�16 vERv wme MORE TFiAN i0 FFFT v�Rv 1H�cK�v aEooEo > 4 FEET N 796561 WLDE 3 TO 10 FEET I'HIfKLY BEDDEO 1.5 - 4 FEET MODERaTELY CLOSE 1 TO 3 FEET THINLY BE�DE� m.16 - 1.5 FEET E 1861555 F_LEVATIDN: I��e� FTe rLOSE 0,16 TO t FF.ET VERY THINLY BCO�EO 0.83 - 0.16 FEET VERY CLOSE LESS THF1N 8.16 FrCT �HiCKLY LAMINATED m.mBB - m.83 FEET NOTFS: TN[N�v �AMma1Eo < m.mes FeEr Soil samp�es visualry classif'ied in th fielda INDURATION FOR SEDIMENTARY ROCKS,iNDURATI�N IS THE Ht1RDENWG OF THE Mt1TER[AL BY CEMENTING,HEAT.PRESSURE.ETC. FRIAeLE RUBBING WITH F[NGER FREES NUMEROUS GRt11NS; GENTLE BLOW BY HAMMER OISINTEGRFITES SAMPLE. MOOERATELY WDURATED GRA[NS CAN BE SEPaRATE� FROM SaMPLE wITH STEEL PROBE: BREPKS EF1S[LY WHEN 11[T WITH FIAMMER. IN�URATEO GRAINS F1RE �IFFICULT TO SEPARATE W]TH STEEL PROBE; DIFFICULT TO BREAK WtTH HAMMER, ExTREMELY INOURATE� SHARP HFaMMER BLOwS REOUIRE� TO BREAK SAMPLE: SAMPLE BREAKS PCROSS GRF11N5. RCVISE� 09/23/09 SITE PLA1� N�� Bridge 146, Alamance County � � � �2,��0 �� i �;� � . WOODS Q � ° ,� � � i , ,. � , �8,,,' �� R�p BI-A 3 � �\ � T -I. T �S„ >� 4 � �C�/� � � � � � � _ w�� c , �o` , '�. 9,,�\�� /� � WOODS �S-2 �,/ ' �, B p � � � RS-3 � � c� /� � WOODS q ERIq e�EV`6 oNTF / 9,/q, �3x � P WOODS SCALE SO:l NC GRID NAD 83 0 Proposed End of Proposed End of Footing (Downstream) Footing (Upstream) 620------------------------------------------------------------------------------- - 620 -- �C-B I-=�B------------------------------------------------------- EBI-Q o R��' 610 ---------------------------------------------� �-- �- � �--- L i;;: i � L• �_ L ",` '—�/ � L ---- \ / L. __� C�_L � � � O � O L ___ L q L;;: B L 600 __ L��:`� �--- �—��—� �ooi.� ::��------------� �— � ------------------------------------ � -- _ � -- --------- - 607b�-- -r ��r- �rr--T�r � � 6u�� - � CRYSTALL/NE ROCK:(FELSIC METAVOLCANICJ 610 ---��j------------------------------------- A /�q —�---- O 6 q/I%� � .. � � .... 30/.I WEATHERED ROCK: (FELSIC METAVOLCANIC) 600 ------------------------------------------ -�rl=rT� 590 -------------------------------------------------------------------------------------------------------------------------------------------- OO ROADWAY EMBANKMENT: RED-BROWN AND ORANGE-TAN.FINE SANDY SILT fA-4JWlTH TRACE ROCK FRAGMENTS O ALLW/AL: TAN-GRAY.SILTY FINE SAND (A-2-41 WITH TRACE ROCK FRAGMENTS O WEATHERED ROCK: (FELSIC METAVOLCANICJ �Nofe:Cross secflon cuf usTng Geopok olong the proposed culvert benf line.lnferprefed 5lrotigrophy was drown between borings wilh both projecfed onfo tlae bent line. � � -------------------------------------------------�---------------------------------------------------------------------------------------------------------------------- Proposed End of Proposed End of � Footing (Downstream) Footing (Upstream) 0 � 0 62 0 ------------------------------------------------------------------------------------------------------ - - ---------------------------- - - ---------------- - -- 62 0_� CB2�� Q C�2 B � 610 __------ u--------------------------------------� �--�- - - ---------- � — � ~ � � L . i� � A � 0 � 4 L':;:: _. —C �� L .: 600 �� ---------------------------- O -----'� � -- LE.:'-d�7T3-------------- ��------- B � � 54 ;,O ____ '�� o-- B � 60/0 � �� /� l ; �-7�= %T/ `�/T �m �j CRYSTALL/NE ROCK: fFELSIC METAVOLCANICJ ti N + O� N � '�INE RS 3 610 ----�----` ----------------------------------- � L _ O . �� - / 3 ` � — — q� _� i ,o O � ie 04/12 / is _ _ _ • � � 60 � ._..:>' 600 .:.. ___ ___�______6Q ___ .._.:.�______ — 7oio.3 � � r =� _r�r ROCK: fFELSIC METAVOLCANICJ 590 - ---------------------------------------------------------------------------- � ROADWAY EA/BANKAIENT: DARK RED,TAN,AND GRAY,FINE SANDY SILT (A-4)WITH TRACE ROCK FRAGMENTS O ALLW/AL: TAN-6RAY, FINE SANDY SILT (A-4J TO SILTY FINE SAND fA-2-4J WITH TRACE ROCK FRA6MENTS O RES/DUALs TAN-GRAY.SAPROLITIC.FINE SANDY SILT fA-4J � WEATHERED ROCKx (FELSIC METAVOLCANICJ •Noie: C�ass sectfon cut us/ng Geopok olong the propased cuNer�beN /ine./n/e�pre�ed siroilg�ophy was d�own belween cn bo�Ings wlth both proJec/ed onlo the benl l(ne, U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 6 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST A. May, E.I. SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. EB1-A STATION 12+�7 OFFSET 20 ft LT ALIGNMENT -L- 0 HR. Dry COLLAR ELEV. 609.5 ft TOTAL DEPTH 11.0 ft NORTHING 796,582 EASTING 1,861,523 24 HR. Dry DRILL RIGIHAMMER EFF.IDATE SUM3359 CME-450 85% OS/15/2013 DRILL METHOD H.S. Augers HAMMER TYPE Automatic DRILLER C. Husketh START DATE 04/20/12 COMP. DATE 04/20/12 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 610 609.5 GROUND SURFACE o.0 � � � � � � � � � � � � � � � ROADWAY EMBANKMENT i ... .... .... .... — ::[ '� ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' — Reddish Brawn, f. to med. SANDY SILT 605 1 3 3 � (A-4), Trace Clay, Fine Rock Fragments, and tg M Fine Roots .� . . . . . . . . . . . . . . . — -�. . . . . . . . . - - � - - � _ ,,::: 600 . t . . . . . . . . . . . . . . :- 600.5 9.0 3 3 8 i.. �� .- . i. � . I W '° �°, 598.6 ALLUVIAL 10.9 60/0 60�� Tannish Gray, SILTY f. SAND (A-2-4), Trace Clay and Rock Fragments WEATHERED ROCK (felsic metavolcanic) Boring Terminated with Standard Penetration Test Refusal at Elevation 598.5 ft on Crystalline Rock (felsic metavolcanic) Very hard drilling starting at 10.9 ft interpreted as Weathered Rock v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 7 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST A. May, E.I. SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. EB1-B STATION 12+06 OFFSET 8 ft RT ALIGNMENT -L- 0 HR. 7.3 COLLAR ELEV. 611.5 ft TOTAL DEPTH 11.8 ft NORTHING 796,559 EASTING 1,861,502 24 HR. 7.5 DRILL RIGIHAMMER EFF.IDATE SUM3359 CME-450 85% OS/15/2013 DRILL METHOD H.S. Augers HAMMER TYPE Automatic DRILLER L. Gonzalez START DATE 04/19/12 COMP. DATE 04/19/12 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 615 61�.5 GROUNDSURFACE o.0 610 I �� I I I� �� I ROADWAY EMBANKMENT ' ' � ' ' ' ' ' ' ' ' ' ' ' ' ' ' — Orangish Tan, f. SANDY SILT (A-4), Trace ' ' ' ' ' ' ' ' ' ' ' ' ' L';:r Fine Roots 3 5 7 . .♦�2. . . . . . . - - � - - � M I_.:: 605 I . . . . . . . . . . . . i '!`!: . .� . . . . . . . . . . . . . . — ;;. L-----J--. . . . . . . :- 602.4 9.1 15 56 44/.2 � � � � i � � � � � � ✓, WEATHERED ROCK 600 . . . . . . . . . . . . . . 100/.7 ' 60/0 60/0 599 � (felsic metavolcanic) � 1.8 Boring Terminated with Standard Penetration Test Refusal at Elevation 599.7 ft on Crystalline Rock (felsic metavolcanic) v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 8 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST A. May, E.I. SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. EB2-A STATION 12+70 OFFSET 23 ft LT ALIGNMENT -L- 0 HR. Dry COLLAR ELEV. 607.7 ft TOTAL DEPTH 11.5 ft NORTHING 796,563 EASTING 1,861,573 24 HR. 7.2 DRILL RIGIHAMMER EFF.IDATE SUM3359 CME-450 85% OS/15/2013 DRILL METHOD H.S. Augers HAMMER TYPE Automatic DRILLER C. Husketh START DATE 04/20/12 COMP. DATE 04/20/12 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 610 60�7 GROUND SURFACE o.o � � - � � - � � - � � - � � � ROADWAY EMBANKMENT 605 �- - . . . . . . . . - - � - - � — Reddish Tan, f. SANDY SILT (A-4), Trace 3 2 2 �� . . . . . . . . . . . . . . Clay, Rock Fragments, and Fine Roots �4' ' M —;:: . �\. . . . . . . - - � - - � 600 . . . � � . . . . . . . . . . . � :::: � ��- 598.8 8.9 4 22 32 . . . . . . .� ,�54 ' . W ALLUVIAL �� L_'_ 1___' S96.4 grownish Tan f. SANDY SILT A-4 With 1 t3 60/0 60/0 � ). Clay and Fine Rock Fragments RESIDUAL Grayish Tan, f. SANDY SILT (A-4) Sapprolitic WEATHERED ROCK (felsic metavolcanic) Boring Terminated with Standard Penetration Test Refusal at Elevation 596.2 ft on Crystalline Rock (felsic metavolcanic) Very hard drilling starting at 11.3 ft interpreted as Weathered Rock v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 9 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST A. May, E.I. SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. EB2-B STATION 12+65 OFFSET 5 ft RT ALIGNMENT -L- 0 HR. Dry COLLAR ELEV. 610.5 ft TOTAL DEPTH 12.9 ft NORTHING 796,540 EASTING 1,861,558 24 HR. 7.5 DRILL RIGIHAMMER EFF.IDATE SUM3359 CME-450 85% OS/15/2013 DRILL METHOD H.S. Augers HAMMER TYPE Automatic DRILLER C. Husketh START DATE 04/20/12 COMP. DATE 04/20/12 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 615 6�0.5 GROUND SURFACE o.0 610 � i ::y ROADWAY EMBANKMENT . � . . . . . . . . . . . . . . �_::::: ' � ' ' ' ' ' ' ' ' ' ' ' ' ' ' Dark Red to Grayish Tan, f. SANDY SILT 3 4 6 . . . . . . . . . . . . (A-4), Trace Fine Rock Fragments, Clay, and 605 ' 10 ' M Fine Roots _ '... . .� . . . . . . . . . . . . . . . .� . . . . . . . . - - � - - � . .� . . . . . . . . . . . . . . M — 600 7 6 7 - '♦13 . . . . . . . . . . . . . I. `—�--- I ------- -r 5982 12.3 60/0 60/0 WEATHERED ROCK (felsic metavolcanic) Boring Terminated with Standard Penetration Test Refusal at Elevation 597.6 ft on Crystalline Rock (felsic metavolcanic) Very hard drilling starting at 12.3 ft interpreted as Weathered Rock v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 10 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST D. Dewey, PE SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. RS-1 STATION 12+39 OFFSET 20 ft LT ALIGNMENT -L- 0 HR. N/A COLLAR ELEV. 607.2 ft TOTAL DEPTH 7.3 ft NORTHING 796,572 EASTING 1,861,543 24 HR. N/A DRILL RIGIHAMMER EFF.IDATE N/A DRILL METHOD Rotl Sountling HAMMER TYPE N/A DRILLER C. Husketh START DATE 09/25/13 COMP. DATE 09/25/13 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 610 6o7z GROUND SURFACE o.o n/a 1 2 3 . ' ' I . . . . . . I . . . I ALLUVIAL 605 n/a 2 2 n/a 6 4 ��p . : : . : : . : : . : : : Tannish Gray, SILTY f. SAND (A-2-4), Trace n/a 6 4 . 10 . Clay and Rock Fragments n/a 6 9 - - �15_, � . . . . . . . . . . �" 6022 5.0 n/a 30 30 � � � � I � � i - �60 � � � � � RESIDUAL 600 64_ _ _ -' 6002 7.0 n/a 37 27 70/0.3 Grayish Tan, f. SANDY SILT (A-4) n%a 70%0.3 Sapprolitic WEATHERED ROCK (felsic metavolcanic) Boring Terminated at Elevation 599.9 ft in Weathered Rock (felsic metavolcanic) v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 11 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST D. Dewey, PE SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. RS-2 STATION 12+2g OFFSET 21 ft RT ALIGNMENT -L- 0 HR. N/A COLLAR ELEV. 607.8 ft TOTAL DEPTH 4.6 ft NORTHING 796,539 EASTING 1,861,518 24 HR. N/A DRILL RIGIHAMMER EFF.IDATE N/A DRILL METHOD Rotl Sountling HAMMER TYPE N/A DRILLER C. Husketh START DATE 09/25/13 COMP. DATE 09/25/13 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 610 607.8 GROUND SURFACE o.o n/a 1 1 2 . . . . . . . . . . . . . . . ALLUVIAL n/a 2 2 °°"° �°° 605 n/a 3 3 �g � Tannish Gray, SILTY f. SAND (A-2-4), Trace o��voo I ,,_�� n/a 3 3 I♦6'== �-'_ _ 1'' '' '''' °��o �° 603.3 Clay and Rock Fragments q,s n/a 10 30/.1 30/.1 WEATHERED ROCK (felsic metavolcanic) Boring Terminated at Elevation 6032 ft in Weathered Rock (felsic metavolcanic) v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z U�� NCDOT GEOTECHN/CAL ENGINEERING UNIT SHEET 12 � BORELOG REPORT WBS 17BP.7.R.63 TIP 17BP.7.R.63 COUNTY ALAMANCE GEOLOGIST D. Dewey, PE SITE DESCRIPTION Bridge No. 146 over Rock Creek on SR 2363 GROUND WTR (ft) BORING NO. RS-3 STATION 12+57 OFFSET 20 ft RT ALIGNMENT -L- 0 HR. N/A COLLAR ELEV. 606.8 ft TOTAL DEPTH 7.3 ft NORTHING 796,528 EASTING 1,861,544 24 HR. N/A DRILL RIGIHAMMER EFF.IDATE N/A DRILL METHOD Rotl Sountling HAMMER TYPE N/A DRILLER C. Husketh START DATE 09/25/13 COMP. DATE 09/25/13 SURFACE WATER DEPTH N/A ELEV DRIVE DEPTH BLOW COUNT BLOWS PER FOOT SAMP. - � �ft� ELEV �ft� O SOIL AND ROCK DESCRIPTION (ft) 0.5ft 0.5ft 0.5ft 0 25 50 75 100 NO. MOI G ELEV. n DEPTH ft 610 606.8 GROUND SURFACE o.o n/a 1 2 3 . . . . . . . . . . . . . . . ALLUVIAL 605 n�a 2 2 4 � ! n/a 6 4 � ��p � � - � - - � - � � - � - Tannish Gray, SILTY f. SAND (A-2-4), Trace n/a 6 4 � 10 ' ' ' ' ' ' ' ' ' ' ' ' ' Clay and Rock Fragments n/a 6 9 � ' �15_ _ _ . . . . - - � - - . °° 601.8 5.0 RESIDUAL 600 n/a 30 30 . . . . . . -- j r �60 . . . . . 599.8 �.o n/a 37 27 64- — — — 70/0.3 Grayish Tan, f. SANDY SILT (A-4) n/a 70/0.3 Sapprolitic WEATHERED ROCK (felsic metavolcanic) Boring Terminated at Elevation 599.5 ft in Weathered Rock (felsic metavolcanic) v N N W � � Q � U� Z d � W �I Z U �I v 0 (� � m� O � �� > 0 w � z � � 0 m � 0 0 U Z