tax map key: 9-8-16 & 9-8-17Sections: scope of service, proposed roadway, recommendations, vicinity map, plot plan, field investigation, and laboratory testing.Community Planning, Inc

Martin, Richard A.

English

ScholarSpace at University of Hawai'i at Manoa

•• ! '' ··.~ .. ·.·. I i' I ,. · ... ·. .~ . -.··· .. · .. r L. REPORT SOIL INVESTIGATION ~·~~~ PROPOSED ROADWAY "A" MAKAiDEVELOPMENT I<,AMEHAMEHA HIGHWAY AND KALAUAO STREAM AIEA7 HAWAII. i.M,\"-, t:t-8-11..4 17 for PHILLIP LYON, GORDON COM.PANX. · .. . ROBERT B. LILES, INCORPORATED Architects . ' . . . COMMUNITY PL-ANNING, INCORPORAT~D . Consulting Engineers.·· Decembet: 22, 1971 Project No. 128-003-111. · : ·, '. "-l ,.j MAURSE'l'H, HOWE, LOCKWit! ASSOCIATES . Consulting Foundation En · &. Geologist~ MUNICiPAL REFERE~ CORDS CE~TER · City~~lf!ionolu_lu . . City H ' Ro~x. 558 S. King ~t'"(let · Ho · ulu. H~waii of .. :-:'·13 \· ''·'· MAIN OFFICE .t636.·M ,EAST ~Dr'N.GER'STRE·E·f.-SAN'tA ~_N_A, CA·L·u:·o~_Nu\ 92.705 • ('7't4:) 54~-34_1.1 ' ...... !'' · ... ( -~J..>.·s~ci,··EASi" THOMPSON EiLvo·.·, VENTURA CALIFOkNIA 93001 . 94.:·~:61 -~-ARR.INGT(;)~' H)~,H'vY.~Y I. ~~-l.P~HU, H~~A;_,_ .~·~·7'9'7' ·,·.'·.,,,'-'\.:· . MAURSEtH • HOWE • L.OCKWOOD & ASSOCIAtES A CO.RP().~ATION .. ('805)" 643-3438 R~Y 0. MAURSETH,.C:E: .io·H.~ ~- J:·.foW)=;, C .. ~: Honolulu, Hawaii December 22, 1971 ROBERT D. ·co.usiNEA,u CHAR.LES _S. HOWE ·J~·:• C. I;. R. BRLICE LOCKWOOD, GEOL,,P.£. RIC~A·Ro A. 'MARTIN, P.~.· .Job No. 12~-003-11 RICHARD P. COUSINEAU, R.E:.G. • • • . t ' • Community Planning, Incorporated 700 BishopStreet, Suite 608 Honolulu~ Hawaii 96813 Attention: Mr. George K. Ho~ght~iling Gentlemen: The attached report represents the data, conclusions and recom-l'Xlendations of an investigation of the soil conditions at the site of the proposed Roadway "A''- Makai Development, to be loc~ted between Kamehameha Highway and New Moanalua Road, J~alauao, Ewa, Oahu. Based on the findings of this investigation, it is believed that the proposed roadway can be constructed with a 24 inch section in the lower elevations and over existing fills, and a 20 inch section in the higher elevation~, and on natural soils. The 24 inch section would consist of 12 inches of compacted subbase, 9 ipch~s of baseco~rse and 3 inches of asphaltic .concrete topping. The 20 inch. section woulci consist of 12 inches of compacted sU:bbase, 6 inches of basecourse and} inches of .•· asphaltic concrete. These recommendations a:re based on the design traffic number (DTN) of 100, yvhich repres~nts a medium to heavy traffic load • . :.·· :" .. ,· . . . ... •, ·. . ' : . ' .: : .. ·. This investigation was made in accordance with generally accepted engineering procedures and included such field ~nd .laboratory tests considered necessary in the circumstances. In the opinion of the under-.·. signed;~ the ,accompanying report ·h:as been. substantiated.by mathemati~al -. '\ • .; data in conformity with generally accepted engineering principles and presents fairly the design information requested by your organization.· Should you have any: questions, please do not hesitate to contact t.ls. This t~vestigation was performed by me or under my supervision., RAM/;rk .. :.·· -: ..... ' .. ' :·. ·~ ... ' ,'. .·:.·.· . ,} . ". '•.: . .' . ·._ ... ',I ' ... · Very truly yours, MAURSETH, HOWE, LOGKWOO:O & ASSOCIATES Richard A. Martin · · ,' ... ··· ..... .·.,: . ~ ' . .. ' . ·'. . T ~ , '• ~ . ' ~ ; .. ' ·•' ... •, ... . ·': . •,'•' · . . · ~:· ·, ·· .... , .. ' ' .. :- .. .. ~ ., .. ;· ·: ·,.· ,•.!.,,'· ~- ·, ' . . ., .: ... _ .·.·. :;·. .·.·, : ·~. ·.. . ,· . . . •,; :•, ,:_ '.· ·.::. .... · .,, •' iNTRODUCTION This investigation was ro.ade for the purpose of obtaining information on the subsurface soils on which to base recommendations for suitable . pavement design for the proposed Roadway "A" .,. Makai Development. The location of the site, relative to the existing streets and landmarks; is shown on th~ Vl.cinity Map, Plat~ 1, attached to this report •. SCOPE OF. SERVICES The scope of services provided,was ~utlined in a Proposal dated . August 6·, · l971 •. It was planned thatfour subsurface p~obings would··b·e·:.:: excava~ed tcidep,ths on the order ofS feet each •. Samples o( the soils encou;nte;ed '-Vere tobe obtained for visual inspection and laboratory testing. After a review o! th~ subsurface conditions ~ncountered in the test probings, laboratory _testsand engineering calcul~ti.ons were tn~c;le . . . . .. · . . . ·. ., ·. 'to determine the characteri$tics of the underlying soils for pavement design. .PROPOSED ROADWAY it is understood that the proposed roadw~y would be 86 feet wide, with moderate to heavy loading. For cor:nparison, this i'o<!:dway would be designed .with similar loads to that of the existing .Moanalua Road.·· .. . . ' . For design purposes, a design traffic number (DTN) o£ 100 'was assumed. · Four· exploratory trenches were· excavatecl to depths em ~he order of . ' . ,. ·- . ' ·. ·' ... '·.·.•. ·' .:> ,' .... -.. : ... ·.······. :' ·,.,_' . · .. ~· ·: .. ·.: .·:·~ ', 'I·, ... , .. ' · .. \ · .. " .• \ ... ' . ' ~ . . . '. ' ', '.:'\ . . . ·~. ~. .. ·-·:I ·, : · .. · . · .. ·. ·· .. , I' :I l il five feet e(lch. Relatively undisturbed samples of the underlying soils were obtained to deter:mlne their physical characte:i'istics a11d engineering properties. A detailed dfscription of the subsurface investigation, soils encountered, a._ng lab~:r<,1.tory test resu1ts are presented in the Appendix to this report. Below Old Moanalua Road, to the existing Kamehameha Highway, the pear surface is covered with red.,.brown clayey sl.lt with gravel. This .material, which is moderately firm, is part of a fill placed about four years ago. Above Old Moanalua Road, to the e~isti_n:g Moanalua Road, a near surface fill of clayey silt with gravel is underlain by very firm; red-qrown c;:l~yey siH. CONCLUSIONS AND RECOMMENDATIONS It is recommended. that the area below Old Moanalua R6ad in the old watercress f(l.rm <trea be constructed with a 24. inch_section, ·inCluding 12 inches of subbase, 9 inches of basecourse <tild 3 inches of-asphaltic con-crete. Above Old Moanaiua Road, and .ove;t the firm, nat"q.ral soils, a 20 · .. . inch section. is recommended, using a 12 inch subbase; .6 inch basecohrse, .and 2 inches ofasphaltic concrete.· It is recommended. that the subbas.e be 'compacted to at least 90 per-' . . . cent ofthe maximu,rn dry density as determinedby ASTM ti + ·1557 Method . of Compac:tion. The subgrade shoul4 be shapedto clrain pr~perly prior, to .. :. -.Placement ofthe subbase •. .· .-··; . - ,'· '' ~-. •. , .. '. :. . . ' .,(.: <· . .. ---·~~'--------~--------~--------........ -..., .. ._.....__._;,.....,_"'"'-· .......... ~---·-----,-----. ,· ~ .,. 3 -It is recommended that cut and fill slopes be constructed to 2 to 1 (horizontal to vertical). REMARKS The four test pits indicated that the material varied across the site. While no major changes in subsurface conditions are anticipated, it should be realized that conditions encountered during construction whould be inspected to verify design reGOrn_p:iendation8. . ' . This .report has been complied for the exclusive use ofPhillip Lyon; Gordon-~ Company. It shall not be transferred to _or used by a third . . . party or to another project without consent and/or thorpugh.review by this facility~ .Sarnp1es pbta:i,necl in this investigation will deteriorate with time and will be unsuitable for further laboratory testing within one month from the date ofthis report. ~Unless otherwise advised; the sampl~s ·will be dis~ carded ~t th~t time •. : . ':_. ' . ~ : ' - 0 0 0 -The follo~ing are included and complete this. report: • ~I • . .. ; . -· · .. ' . .Plate 1 -.Vicinity Map ·Plate 2 ~. :Plc,>t Plan :- .·'··· A_ppendix - Fieldlnvestigation and ....... ·:. ~. ·. . .. . ~ ·. . . . Laboratory Testin~ :. __ ·: _ _- .· ..·•· ..· ·.· ·:-\· · .. . ) I I I· II I I I ,, I i VICINITY . MAP ?AST LOCH SITE LOCATION 0 R SCAL.E IN FEET .. ·· REFERENC.E USGS Topographic Map Waipahu Quadrangle bated 1959 ROAD "A 11 .., MAKAI DEVELOPMENT PLATE NO. 1 MAURSETH HOWE LOCKWOOD & ASSOC. Fl LE NO.Izs-oo3-ll ., _,~.;.;....,.;..;.. _________ _ il !I !i I· I i i I ...... Pearl Ridge .. Shopping . Genter Existing Drainage Channel Proposed Shoppipg Center .' ' ... . ... ·,· --·\; .·'t. Scale 1"=200' ·Reference Pearl Ridge Schematic Traffic Movements For Pearl Ridge Road Community Planning, . Kamehameha · Highway · Incorporated · · ;;;.: -· _ ........... -:-------------- _,__......_......._ ................... _. Honolulu, Hawaii ··:· j ... Dated June 4, 1971 PLOT PLAN ROAD "A" - MAKAI DEVELOPMENT PLATE NO .. 2 MAURSETH HOWE LOCKWOOD & ASSOC. FILE N0.128-b03-il! 11 . :' '· ~. ' . .~ ·! . '.·· .l . • .···.·· APPENDIX • . .. :. ,.·,. . ··. ~ ' --- -----------------------FIELD INVESTIGATION AND LABORATORY TESTING Field Investigation. Subsurface conditions at the site of th~ proposed roachvay construction were explored by excavating 4 test pits. The pits were excavated to depths of app~oximately five feet with a small backhoe. The locations of the exploratory pits are shown on the Plot Plan, Plate 2. Logs of.all soils encotiJ:l.tered a;i'e showt1. c>n the attaq_l:;ted :Plates, 3 th~ough 6. Undisturbed samples were obtained by driving. a sampling tube into undisturbed soil at various intervals below the surface by -m_eans_ of a heavy drivipg weight dropping on sa,tn.plei' rods. ':I'he sampling tube con-sists of a steel barrel, 2. 50 inches in diameter, with an interior lining of on~ inch lol)g, thin brass rings. TQ.e sampling tube is driven approxi-mateiy 18 inches into the soil and a section .of the central portion of the sample is taken to the laboratory in a closely fitted, water-proof con-·.· ... ' . . ·. . '. . tainer in ordeJ;' to retain tl:le field :moisture until COI;ll.pletion of the tests. . . . . •' ·.. .' The.driVh}.g energy required to drive the si:Lmpler one fo~tillto the unqj.s-turbed soil.; as .noted i,n the Log of :6orings ip':{3lows pe_r Foot, is approxi-. . ' . mately equivalent to the Standard Penetration Test. Laboratory Testing. The undisturbed samples extracted from the test pits were subjected to various laboratotytests following a review of the field investigation. . . ' ... ;-: .· ., . '. _: .... · . T~sts _perforrried.included moisture and density. determinations, direct • _1-:, .•. ,: ..; A2 -shear tests and California B earing.Ratio Tests. Compaction test results, performed for a p:revi.ous site irw~stigation, are also included. The field moisture content and density tests of samples obtained were made to correlate between similar samples. One or more one inch long section of the sample are cut, trimmed, weighed, oven dried and reweighed. From these measurements, the un:lt .weight of the solids in pounds per cubic foot a]J.d the perce11t of J;noisture are calculCt,ted. Th~ test :results are tabu-lated on the Log of Test Pits, Plates 3 through 6. To determine the strength characteristics of the soils encountered, directed shear tests were performec:i. Each sam~le is sheared under a normal load approximately equivalent to the expected overburden. In addition, some tests were performed at decreased or increased surcharge pressures to simulate. the effects of reduced loads due to excavations, or the increased loads due to the weight of fill. Coi'xJ,pf11.nion, teljlts wer.e per-formed on the same samples to determine the effects of moisture on the cohesive properties of the soils. The shear test results are tabulated on the Log of Test Pits, Plates 3 through 6. · Two California :Searing Ratio.· Tests were performed on representative samples of the. soils found onthe site. Both tests were performed under a surcharge of SJ poun<:ls per square foot after allowing the compacted samples to soak for five days. A CBR, for both samples. compacted to . . . ,·_.:. :" .··.· · . .-',.. ·:··, ... ' .···, ,. ; . ~ . '· ,( :-.· . ·, :'.· · ... . . .. . .. , .. •,: .. ?:?:::r";:,. - .A3 -approximately 90 percent of the maximum ciry del).sity at:; deterrni:Q.ed by ASTM D 1557; was 8.8 percent. Two bulk samples of surface soils were tested to determine their compaction characteristics. The tests were performed in accordance with ASTM D "' 1557. The test results are plotted on Plates 7 and 8. .·; • . '· .. ·.· ' . '. ~~ ) '.'' '·. ~ .·' ; '·.'·,·: . '· ' ...... i,.: ' ,, ;. !-LOG OF' Tt:ST PIT NO 1 DATE December 14, 1971 EQUIPMENT USED Bac_khof!' '.·:.~ .. ') ELEV OF SURFACE 13. o·~~ <!) IJJ- :x:-z a:: ... ....... - :::H~ O::(!)c z (I) Ill <tz., ii: ~' Ww' z IJJ Ill J:a::~~t 8f~ (/)1-Q (l):i DESCRIPTION OF SOILS - a:: ... 1- l&J >-:I a:: IAJ >I- u z ll. 1-IJJ J a:: c;; .. 0 1- (/) 0 Offi ~ a:: U) 3: 0 l&J 0 0 u. QtR Q. :1: ..J .0 CD -78 23.7 6 ---.91 28.0 4 .• ; .~· . -' . '-IJJ~ ..J 1-a. :::c IJJ ::IE t-w <( a. u. U)l&J Q CLASSIFICATION \ 0:: 0 ..J 0 u 1- SILT, clayey with FILL gravel brown lrnott. ·!-·~ (MH) ~~- _......_.........._ ............. _ ---- -- ....... _ 1-1-~2 1-~ !-1--3· -------~4-·'I-1-~ i-5 1-1-~ 1-r- 6-1-1-~ ~ ~ . !-very clayey (MH) __ -,,'"\:' ··.,. :.._ •' •.,-End. of Test Pit@ 5. 0 1 ' -- No Water Encountered red brown ' IJJ >-a:: 0 z ::l IJJ 1- 1-en !a - (I) 0 z ~ 0 0 moist mod firm *Reference Elevation-Grad~ng Plan by Community Planning, Ittc. - Undated ROADWAY "A" - MAKAI DEVELOPMENT PLATE NO 3 MAURSETH HOWE LOCKWOOD & ASSOC. Fl LE N0128-003-11 1·.& -i: I. I ii : ; ~. ' .. 1'1:.· ' !.. . .. I 1·.' . ·, .... LOG OF TEST PIT NO z DATE December 14, 1971 EQUIPMENT USED . Backhoe ELEV OF SURFACE . 17. 0 I 0 ESCRI PTION OF SOILS (!) LIJ--x- ... z a: ... ... ->- :;, -:J~ O::(!)a )-1- u z (f)., <(z., iL ~' a:: u; .. Ww'- Q~ ~ z LIJ., xa:~ 8~~ Ult- Q ~ (I)~ .a o .. 6 z~·on ·73 0. 6 0. 6s ..... 1-a:: z LIJ ::;) 0 1-a:: (f) LIJ 0 A. ::E 24.:7 •.. , . I· :.- .. 1 • 0 Lo ·. '• -::..:. '· ':. ':'I ,i; . ·:-.. 4•1n ·as~ 26~1.· 1;, Os ,,_,-;·· , ':'•I I', ' ; :. .:.~·: a:: "' Q. 1-(f) 0 ~ 0 0 ~ ..... m ·. 6 . · .. ·. LIJ~ ..J 1-Q. :X: LIJ :IE 1- LIJ <( a..l&. fi>LIJ Q CLASSIFICATION ' •~o- · SILT, clayey with. ~FILL . . ~ ··~- 1 • gravel to 311 visibJe (MH) ..... . . a:: LIJ )-0 0 a:: z :J w ..J 1- 1-0 en !Q 0 U) (,) :E z 0 0 br,awn moist mod mott firm ~ ~ ~2 ~ ~ 1---.._ --~·~ ............... __., __ _ ~3 ----. I- 4 • (MH) .·, ·, . . . . : .. ·.:'' · .... red brown ...... ~5~~~--------------~----~----~--~~----~ n - natural condition s - ,, sa.turated condition f-~ f.-~ 1- • I-'--' f-~ ~ .~. . f-. End of TestPit@ .5. 01 . N:o Water Enco.unt er.ed .: ROAPWAY 11A 11 - MAKAI DEVELOPMENT MAURSETH HOWE LOCKWOOD & ASSOC. PLATE NO 4 Fl L E N 0128- 003- n , . ' . ' ' • ''· LOG OF TEST PIT NO 3 DATE December 14, 1971 EQUIPMENT USED Backhoe ELEV OF SURFACE 19. 0 I 0 .. 4 0.4 0.,8 o. 8 DESCRIPTION - OF SOILS 1- w z 0: ::> LLI (J 1-0: C/) t.u 0 Q. :1: 26. 1 ! '!' ' oli 9s 2 .... 7n ... 65 31;, 4 ', a: t.u a. 1-(/) 0 ~ 0 I&. 0 ...1 CD 19 . ·, .. 2.5 I&J~ ..J 1-a. :I: L&J :2E 1-w ~ O..u., CI)IJJ \ c 1--f-.1--'1- 1. f-~ 1-2 1--f-1--f-i-3 ~ -~ 5-I--CLASSIFICATION FILL·.: SILT, clayey with gravels to 3" visible (MH) •.' ,. ' .. .. ,·, ~ .' ' ., \'4' ;. •. numerous root.s ' ' ~ .. ·-., .. ~ cobbles to 6" ' .··. ' a:: I&J >-0: 0 0 :::) z I&J ..I 1- 1-en ~ 0 - C/) 0 z u :E 0 (J brow1 mpist mod mott soft '· ~--~~----------------------~----~----~----~ .,_ ~ t- • ~ ~ 1---" 1--End of T.est Pit@ s~ s·• · No Water Encountered , ROADWAY "A"- MAKAIDEVELOPMENT MAURSETH HOWE . LOCKWOOD & ASSOC. PLATE NOs FILE N0128-an-11 i' ,,11 !l;·e· rl. -- -j:! lj'! . r: I . . . ,I, !!: I i i \ I! li ' II·; . I •' i . il. I' 1: . i !i i,· I ~~-I,_', 1: I ,I, I!' 1·!, I d l:. II' II ..... :· i .•· ' ' .· li ' It ji li I ~~- - .. , i. :: )1 " i•: ... ' ~ :; :· ' I· . . !i .li._. li- ... ,. )1 .''• ···.-· LOG OF TE-S.T. PIT NO 4 OATS: December 14, 1971 EQUIPMENT USED Backhoe DESCRIPTION :x .... 1.:5 6. 4 lo. 5. l. 4; . . ~. . -... ~ ..... z a:: "" :l 0 t-~ (/) Lll 0 0. :I a:: z ..... "" Q. t- .:J t-Q. :t:w (/) 0 :::E t-w 3': 0 ~ fJLL. 0 LL. (/) ;.., Q ··-~ ELEV OF SIJ_RF'ACE OF SOILS. CLASSIFICATION a:: 0 ... 0 u 0 lS " >-0 z w t-!!! (/) z 0 u SlLT, clayey wU:h · brown moist firm numerous gravels 'to mott . : 3" visible ' · .· ... (MH) ·.,. /'c:layey,'·. .:.. brow ::h~-~'; ·:.:( . (M'H) '. ; End of Test Pit@ 5~ 0 >;No Water Encount~r~d ; ... .,·•' .· ·• 'i very .firm ROADWAY .''A" - MAKAI DEVELOPMENT MAURSETH HOWE l..OCKWOQO & ASSOC.- .· .. PLATE NO 6 - · Fl LE NO 128-o:n-n 1 _· I 1: 1\ i! ,I i] II " II i ! ,-. ' ' ~. . . ' ., .~· . . . ; . ',: MOISTURE CONTENT IN PER CENT ZERO AIR VOIDS CURVES MAXIMUM DENSITY = 99. '7 pc£ . OPTIMUM MOISTURE = zz. 7o/o SOIL DESCRIPTION FILL - SILT, clayey with gravel (MH) Boririg.No. 1 • Depth ;. 1. 0', . t:. ' 110 ........... ,....·.~~~~-......... ~\IT~__,...--.,...-r__........-___ .......... "'"'""'"~-. , . ..,.,.~........_ ........................ _ .... . , :· '; . . -->- 90 t--CJ) z ·w 0 >-·. 80 a: Q ·Specific._ Gravity a 2.60_...-/_,··.· 60·~----~----~~--~-4~~--~~~-----~--~----~~~~~ 50~~----~------~----------------~---------~------~ PLATE NO 7 MAURS_ETH · HOWE LOCK\YOOD & ASSOC~ FILE NO 128-003-'11 e ..---------- --------------------- _,__, .. .-. 1-LL :::) ·o ' C/) m ..J z >-t--C/) z 1.1.1 0 >-a: Q 110 100 90 80 MOISTURE CONTENT IN PER CENT ':""~ ; . : ~ ' -· ... ·- --· -·--··· .. -20 . 30 40 50 ZERO AIR VOIDS CURVES MAXIMUM DENSITY = 101. Spc£ OPTIMUM MOISTURE = 23. Oo/o SOIL DESCRIPTION FILL-SILT~ very cla:yey with gravel (MH) :a oring No. 9 Depth z. 0' Specific Gravit1• 2.90 60 Specific Gravity a 2.60/ ·60~--~--~-------4--------~~----~--~----~--~--~ 50 ROADW.!" .. Y "A" MAKAI DEVELOPMENT PLATE NO MAURSETH · HOWE LOCKWOOD. & ASSOC. Fl LE ·NO 128-003-11 / I . 

Soil investigation -- proposed Roadway "A," Makai Development, Kamehameha Highway and Kalauao Stream, Aiea, Hawaii

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Soil investigation -- proposed Roadway "A," Makai Development, Kamehameha Highway and Kalauao Stream, Aiea, Hawaii

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