HomeMy WebLinkAboutRP 95-01; PARKER OFFICE BUILDING; Planning Commission_J --~
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CAR.LSBAD VILLAGE DRIVE
SITE PLAN
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PWNER; Mr. Oakley G, Parker
; . 3215 Maezel Lane, CarlobaJ, CA 92003
I I Tel. 619 729 • 5560
'.SITE : .: . Madi eon Street, Carlebad, CA 92008
' I LEGAL ?ESCRIPTION : Tract ns, Block 38; lot 25 & 26.
1r own of Carl,;bad
;ASSES$0RS PARCEL No. 203·3C4-15 _ . ,
A 'QUANT'JY-Of G N ~ in1p,:s1"/c>o1a .,,..,.,~, 1,>:,I. c~, I_ RAD! G :·t'>,~'1 (fo"ndatlontrenchin1 ;.6CY.)
;coNT AQT PERSON : Roy R Blackford , fol. 619 729-0553
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tLANNl~Cl COMMISSION OK CITY COUNCIL ACTION ,
rarlance i. Conditlonill U6e Permit -fract;or Parcel Map lono Chan1•
r1annecl ~evelopmenj; Eeiopment ~ ·
pit<! Deve;opment flan None
pENERAi PLAN Dli:SIGNAnON :.'11~t:"'¥' rftJS,~..,ifM't. Z'1Ne: l{ii.,;,-1£\p •C-1.
L~ ,LOT AR~A: 7,700 Sf. BUILDING AREA: 1,287 Sf.
'SITE • · New concrotd paving~ 476-SF.
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E'lan.Cbecl< No,__ _____ _
;suMMA~,Y:
CarlobaJ ()ewer Diotrlct ... Carl,bad Water Dlotrlct ...
barlobid Unified School Dietrict ..• Land ueo : exioting vacant
Parkinq: fequired = 11200 of.= 6.5 •pace•
; [rov!ded = 8 ( includlng 1 Handicap )
Building CQVerage: 1,287 of ... Buildinq eq. footage : 1,287 of.
Percent L;;ndecaplnq: 2 O % .&
Average !Jaily Traffic: exiotinq = BO No area of eite applleo to the requirement• set forth in Zoning Ordinance
Section 21.53:2w
Projecteign, W.JflNC\, l't:Ji': i-':<l>'-<¥-'fA!tl';;~p
PLAN NOTES & SYMBOLS.
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RELOCATED ONE STORY. WOOD FRAME MEDICAL OFFICE BUILDING
NEW 4' CONCRETE WALK PAVING
NEW.2' A.C PAVING OVER 4• CRUSHED BASE
NEW 6' X 9' TRASH ENCLOSURE WI CONCRETE SLAB, 6' HIGH C.M.U.
WALLS AND COVERED ACCESS GATES
EXISTING CONCRETE CURB AND GUTTER
EXISTING CONCRETE SIDEWALK
NEW LANDSCAPE PLANTING
EXISTING TREE ?.1~;r,;f .fl t?·ftil:?✓?-0 JIJIJ Q 6 j9']··
TREE TO BE REMOVED -11
8.5' X 20' PARKING STALL WI 4' CONCRETE WHE&~tQF": • _. • ·'/''':J;
9' X 20' PARKING STALL WI 4' CONCRETE WHEEL sl"OP WI 5' WIDE···---•·''
LOADlNG SPACE ADJACENT AND HANDICAP SIGN/MeTAL POST
6" CONCRETE SITE CURf}
6' HiGH WOOD FENCE j N? ,'l)
. PROPERlY LINE
BUILDING TO BE REMOVED
2 X REDWOOD HEADER
RAISED MASONRY PLANTER
CONCRETE PAVED RAMP
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. .:Cl'IY OFCARLSBAD
lDl!SIGN REVIEW BOARD
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LANDSCAPE MATERIAL.S
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LANDSCAPE NOTES : &
.. 1,. A~L fROPOSEO PLANT MAfERIAL5, EXCEPT 11JRf, SHOUIO FUNCTION A5 ( ZONE 2) MATERIAL$.
2. 1\JRli' AREA= !4J1'.'0F LANDSCAPE All.EA.,&_
"· CAJ!.L6f3AD WATER DISTRICT HA5 WAIVED THE REQUIRENENT FOR AN "IRRIOAilON 5YBTEM DESIGNED ro
ACCEl'T RECLAIMED WAiER.
4. PLANT MATERIAL6, AfTER EBTABUBHEO, WILL BE REAOONABLE DROUGHT TOLERANT.
AC(J)M~ • ?' FAIN l'f!A"--O•Jrf /,1,A!:m'Ai.-!ff1C'/1111N ff~)!~~); ~1/'if--.. ~ ~~ ''/)~ Cyl,1,".,qw /·,W... L'r:,&
TURF ANO GAZ.ANIA MEA5 HAVE BEEN REABONABLY GlNFINEO AND BHOULO NOT GREATLY INCREASE
THE TOTAL DEMAND FOR WATER.
LANDSCAPE AREA5 SHALL BE Pl<OPERLY MULCHED UWIL OVERGROWTH.
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A PERMANENT DRIP IRRIGATION BY5TEM BHALL BE IN5'ALLED / APPLICABLE LOCATIONB.
I\. LANDSCAPE .ANO IRRIGATION INSTALLATION5 SHALL CO.-IPLY w1rn APPLICABLE ITEM5 WlfH 0THE CITY Of
CARLSBAD, LANDSCAPE MANUAL, APPENDIX H, CHEC~llBT.
B. ALL LANDSCAPE AREAB BHALL BE IRRIGATED WITH A f':RMANENT, AUTOMATIC IRRIGATION SYBTEM.
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t' -jr . Pl:,-.o:xi or wroved finish rt; I PAiNTED TO MATCH BUILDING
O fr~F~°F'°7,,, 2"X2.X3/16" STEEL FRAME
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ElE.YATION CONCRETE FOOTING
TRASH ENCLOSURE . DETAIL
NO SCALE .
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WALL SECTION (SOLID GROUIW)
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· FOR CANE BOLi
SECTION Ai GATE
REVISIONS BY
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BUILDING NOTES : &
1. ALL EXISrnG EXTERIOK BUILDING WALLS ARE OF IHR CONSTRUCflON, NORfH AND SOUTH WALLS BHALL
BE MlljlMlM IHR CONBTRUCflON. NORTH AND SOUTH ROOF SOFFITS, ALL Ol'ENINGS SHALL BE CLOSED
WITH NON-:OMBUSTTBLE MATERIALS AND LIGHflNG flXfURES SHALL BE IHR PROTECTED AND ALL
OPENINGSSHALL BE 1HR PROTECTED.
2. THE BUILD!-10 SHALL BE MODIFIED TO COMPL Y.WlfH ALL CURRENT ADOPTIVE BUILDING CODES.
3. ALL PASSAGEWAYS SHALL BE ILLUMINATED TO PROVIDE AN INTENSITY OF AT LEAST (.25)
l'OOTCAND..E5 AT THE GROUND LEVEL.
4, PARKING /REA SHALL BE ILLUMINATED WITH MINIMUM (1) FOOTCANDLE AT PARKING SURFACE.
5. ADDRESS <UMBERS SHALL BE MOUNTED ON THE MADISON STREET SIDE", MINIMUM 4• HIGH. OF A
CONTRASTNG COLOR.
6. ALL EXTEROR DOORS SHALL BE SOLID CORE WOOD CONSTRUCTION, MIN. 1 3/4" THICK.
7. SHALL HNE A DEADBOLT AND SHALL HAYE A MIN •. 125" fHICK STEEL ASTRAGAL COVERING THE
OPENING EEfWEEN THE DOOR AND THE JAMB, INSTALL WITH NON-REMOVABLE BOLTS.
8. ALL ROOF OPENINGS SHALL BE SECURED.
9. · ALL OF'ER/BLE WINDOWS SHALL HAYE APPLICABLE SECURITY HARDWARE.
10. CRAWL SPACE ACCESS PANEL SHALL HAYE PADLOCK AND HASP.
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.a U A N T I T I E S
GRADING: OVEREXCAVATION "'· 220 CY.
FILL "' 110 CY.
SCARIFICATION"' 5,684 SF.
N O T E S
SITEWORK: ASPHAL TIC f'AVING "' 3,510 SF
CONCRETE f'AVING"' 585 SF
6" CONCRETE CURB"' 54 LF.
6' X 9' TRASH ENCLOSURE "'(1)
1. SITE PREPARATION SHOULD BE OBSeRVED AND FILL SELECTIVELY TESTED BY A REPRESENTATIVE
OF PROJECT SOIL ENGINEER. GEOSOILS, INC.
2. AN ATTEMPT SHALL BE MADE TO LOCATE ANY EXISTING SUBSURFACE SEWAGE DISPOSAL ITEMS.
IF SUCH EXIST.
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2.4 Jli JI l'RJN.lEO ON NO. 1000H CLEARPAINf e
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MR. OAlt:llV PARKE/\
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CQN:LUSl¢NS
9a$H On. cu, field exp1cratiort. labori11ory tetiog and geoledin;e..f ens.kiee.ring ar,alysi1. ii is 0\/I
opiri!on U'tat tt'lf sitt iS suited fot 111• pro"9s«devefopmenl from ii ~eotechniuf e¥eerin9 Mid
gtoiog,ic vitwpoint., ~vidN that the recomt1ei'tda1i0nt presented in 1M fotk:wing sectiotlt ~•
~led into trit desig11 and constn.ieion pl'1asts ol sit• de..-ek;pmenl Th• primary
geotec.hnical coocemt wtlh respea to tl'le ~pc1-ed development is the d'~\.11 to competed:
Waring m,atetfal ~ ll'it pcten~al fot I burtd sewaga dasposal system somewhere wit.hid lhe
site.
R~rnmeUa!iOl'lS preunted h~eirt ¢)n$idit trle$1, u wel as other upe,c!t of tl'ie site, The
geo~io and engitle~ analyses peiorme-d eonceming site preparation and the
recommend'ations presetiltd herein, have b<en co~leted 1,1sing ttie infOfTl'lation provldtd and
obtained 6..,rirtg out field wo~ In u-., ,vent ~al ariy s~iftcant changes are made to pn:>poud
site development, the eoncl\;s.iont and re-conmenda!ions con!ained in this report shal not be
considered valid unless tl'ie ehangu ar• rviewtd am, the reeommendaliorls of this report
yerified' Qt modifiN in wfitino by this offlca.
RECOMMENOATIQN!:f'RTHWQRJ< CQN!STRUCTION
General Grading>
AJ grid'iog, includ"iog site prepar;1fion, removils and Iii placement. $h01Jkf conform lo Appendix
Chaplet 33 of tl",s Uniform 6.iikflt"li tOCe {119-' e-d.). \he requiremenlt of \he City of Carlsbad
and thl Grad"~ Guid'e!i(Jes presented hereh as Appendix Ill
OJring e-a.rtf',work oonstrvc'.ion. al s?,1 prepration and the o;eneral ~ad"ing procedures of !he
eontractor $h<>uld be observed and !he ii sel&ahler, :uted b)' a representa,tlve{s) of
GeoSons, Im:. If unvsual 01 ur,ex~e:f co1dition1 art expose,d ln the field (svch at a septic
tank). thet should bt reviewed bt tl'lis oftca and I warranted, rnod1\'ied and!ot additional
recommendaltons wil be of.ere¢. Al applieai!a re,quirements of local and natior:aJ C()(ls!M;tion
and ~eneral ind~try $ilfety order,, \Ile Si,.n Ci~ C11unty l-leaJth Department, the O<:wpational
Safe!)' and Health Act. and 11',• C¢n:&!NctionSafety Ad $hould be met
Sit• Prepuatiorr:
Debris, vfije~.tWn and other deleterious maerial stiould be removed from the silt prior 10 !he
5!a.rt ;it.,gradir1~or,structiorL .
Removals:·
Remova:11 should consi:sl ofal 1op$01 and sollerT.Ktl maleria11 within sl/\lctl.lral areas, R~val
depths are anticipalf:'d to be on the or,;!e, ort,,o {Z.O) reet; hcwevor, \ooca!Jy deerx,, rem<:rvalt mar
be necessary b;ne,d on f.eld Qb'loervatioot dut>g eaithworll: CO('ls!Nction Q.e., rem<:rval of a ~plic:
lank, feach \'ield, e1'1:). Once thes• eWmalerials are remov~. ther ma, ta. ustd as
tompacted fil p,ovide-d the ma1eria1s are n1,i51!Jf9 tonditione-d a/l'd cwripacied lo a minimum
relalivt tompaction of 00%.
MR. OAKLEYPARKEA: w.o. 1 a oz-so
eu,ln~ Value:
GtotoU,, l11r.
MARCH 1, 1995
1. An allowabl• bearin~ vah.e of 1500~:Y,ls ~r square foot 'lohouli t.e used ro, des9'
of tonlinuous fl)O!Jn"s 12 inches w'1t M114 iW.es deep and fo, des~n d i~otaled' .... ad
_footiri,gs 24 im;hes wide and 18 inties dEcep, This value matt.♦ irv".1eas.ed bJ 1so
pounds per SQuare root ~o, eM aolitiortal 12 irK.hes in depth aM br 1$0 i»unds per
$quart foot fo, ea,:Jt addrtiooal 12 irl"ies il'I width to a maximum vatue of 2$00 pounds
pt, sq1Jare foot. Th• above va~Jet mat be inc.-eased by one-third wt-,e/'I eorisid"eiin2
YOO duration s'eiwiic: 01 wind 10ad1
lateraJ f'ru1ur.:
1, Pa$slve earth pre$sur• mar bt com,V:e1 at an equivalent fluid havir\2 ii density of 200
pounds per cubic: foot per foot of deith, lo a rt1axirfl1.m, earth press:.Jr• of 2000 pounds
per SqtJare fo-:it.
2. An allowa~l• coeff"tdenl of fri(;'Jon b&een soi and con-a-e!t of 0.40 mil)' bti 1.1sed with
~., dud load forces.
3. V'wtle/'I comhirun'J i:us!l,1 pressura and ftic!ional resislal'IC&, th9 passhi1 pressure
COmpol'lent should bl reduceli by oas-third.
•-Al kioUOgs should mahtain a minir.\lm 7 foot hori?ontaf set bade from the base of \I'll
footi."lg la the face of anr desctiM.inr slo;,a.
founddo/'I Settlement• Stnictural Load!!
Provided thill th• recommet'ICationt oontaind in Vlis report are il'lcorpora:ed illt0 linal design and
constn.w.iori phase of developmer,t, a majcity (i5 Ill 85 peri;ent) of the antiQpa!e fO'~atioll
settlement it expecied to occut during: contructiolt. Maximum set'Jement is not expected ta
exceed appr.iximater, 112 ind! and should 11cu, belcw the heaviest loaded co~mris. Differential
settlemert is not e,:s,ected t\l e,:ceed 1/4 illJ-1 betweel'I sim~a, elements, irl a 20 foot spar,.
Foundation Construction:
Tht fo~ preliminary re«immeodalionsare for typlcat raisW-wood floor, woQd frame, ont
and two-story slNct\.lres. when low expat1sl>1 so~a are ex.po5-ed ;it r111iih ~• o, anticipate-d to
b4I el"\CO\/nte:ed "tn t1'le stemwal excavati0ti1 The foncwil'lg recommendations ass1JJT11 that th1
foundation system is founded enlire!y in prop-fl)' eompacied Iii or compelent undisturbed lenac•
material1-Mort stringent reQuiremenls, fro11 a slNctvral engineering 5\andpoint,. with resped.
to reinforqtment lhicknest and embe-dmer,s, m.it !ilk.• precedence ovet recommerx!alioos
presentt-d herein.
t. · footing: depth and width m;;y be ton:Wijed per Vrul'om, Building tad, g,.iiclelino. Al
footil"lgs should l,f reinforted with ~o No. 4 reinforcing bars, one p!ace-d near lh• top
and Ol'I• ptace-d near the t»ttom ol tt footing.
2. A grade be-an,. It'infOt"tf'd as 11bov1 Wat te,ut 12 incht-s w"tdt 'lhoukl ta. proviclf'd
Kl"IISI targt entraricH (sl.lCh as gar-Qe openMs). n,, base of tht grad, beam should
be at lh• um• rlev11Uon III lhe t»tt>m of .idjoi-iiog foo~t.
MR. OAKLEY PARKER
W.O. UC/Z-SO
G~o~ou,. tr1~.
DEVELOPMENT CRrERIA RECOMMENDATIONS
Undsc,Qt Maintenance and P!antlnq
MARCli 1, 1995
Wale, tias been showl'II \a, weaken the inerent strength of earth millerials and can cause
e,parision. FO'Wldation be-aririg vatues a11 s~tl)' red~ by overfy "wer conditions.
?!ants seleded rot Jands.eaping should beDght weight. deep roo:ed types which re,quir& Jittl•
wale, artd are capabte of survlvi{)g tti• pre ailing cf'imate. Soil ma!erlais s.hould bt maintained
in a sor,d to semi-solid state.
Only the ar:'IO'.inl of irri;ation necessat)' lo us lain plant 11!■ !ahould be prom'ed. Ovet watering
!aodscapt areas coukf adversely al!'ed propsed site improvements_ Wt would reeommeM lhat
any propoSM open bottom plar,ter, adjacen to ptoposed structures be elimir:il!ed fo, a minimum
distanee of 10 feet. As a/'I ar..emalh-1. cloS'd bort,:im type planter, could bt 1.Mized. Al1 outlet
placed in th• botlom of \1'11 planter. CQ1Jld • ins\aned lo direct dr;linage aw.i-, from strvctures
o, ant extetlot COt1cre!1 tlatwork.
from a geolechnical ,ta(ldpotnl leaching i:n,;;,t recommerx!ed fo, U~itbrishing laMscapir.g. If
th1 surlace soils a:t processed' fot lt,t :iurpos, cl ~Otng amendments. lt,ey should be
racompacted ti) 90 percent minimum e!aUve compaction. limiting sulfats-tased sol
iddrtlves/amer.dments in !arxlscaped areal aroUlld l"'iatworlt should be considered, cJue ta their
reactlv• nature with COl'lC.'ett. ·
Site Improvements
Recommenl'.!a:ions fo, extetlot concre:e !'!aftot1c ~esig.n and constNCfion can be provided upon
requesL lfin I.he Mure. any additional imprwemen!t are planned fo, the si!e. recommendations
concerning the geologital or geotechnfall' as;>K-1 of c'esign and consll\lction of said
improvement1 could be provided upon reqltsL This office should be nolll'ied in advanee of any
additional fil ptacement. regrad"ini olth• s~. or trench backf1l!ing a ti.er~ ~Qing tias been
completed. This: indud'n any grad"~g. utt't)' t.-en--..h and retain~ wal tackfills.
Footing Trench Exeavatlo(I
Al fooling trench e;,:c.vatior.s $hould be 11bS11Ved aod' approved by a represen!aUvt of this office
priot to _placing fonns ar'ld reinforc:emenl f:>ofll"lg trench spol and any ex~$S sons generated
Ii-om Ul.ilif)' trencll excavation11 should be ompaded ta a minimum relati--1• c-ompaction ol 90
pe<ce:nt I nQf remo~·ed from !ht site.
Trenching
Al uean6ons ihOl..lld be 11bser.ed tiy Ol'V of out ~sernat!ves and minimaur conform to
CA(-OSAA and ~al saMt rodes. •
Oraln•at
PosiUvt s~e draina'jjlt ~Id be maintain~ilt al times. Drairlagt YlO\,lld f!Ql 1'11/w uncontronf'd
Qowfl anr doct-l'ld"ll'lgl slope. Water iholald>t <.fu-e-ciW awa)' rrom fourtd•!io-1 syste-rns at'ld not
allowed 10 pond and.lot s.tt-p into tht iVWnd Pad drain&<;1• should he d°lfOCed toward ll'1e strret
01 other appr9ve-d area. Root ',11Jtlers and fown spouta should be cons"tcerf'd 1o ¢001rol rt>Qf
MR. OAKLEY PARKER w.o. 1 eoz..so MARCH t, 199S
11:• opportunity lo be of service is we atty ;pp,ecialed. If J'OU have any questions concemirig
1h11 t~ OI I we. may be of fuMu assis'u'tct-, please do not hesila!e 1;1 c.ontad ariy of the
und'ers9"1ed.
Res~i,y submitt&d,,
Geo$oil•, Irle. ~~~ Project GCQlogist
~v-f),_, -
Fa,J L McCll/, ~
Printir,al Geologist \J
cndoswu:; Referent-es
Pfilll• t • Geotechnkal Map
Append'"ix I • Test Pi lpgs
~ d • OOf'ault
Awend"i:c: 111 • Geo$1111 Grad"irt Gl.!iderlil'!es
Pia!• SH-t ~ Shea, Di~
Plates C-t and C-1 • Conso!Na6on Cutvu
! ·-
MR. OAKUV PARKER
W.O. 181>2-SO
MARCH t, 1995
When removals are. COIT'li'.l!eted, &11 attempt st'IOuld be made lo ~te IJl1'1 elistil'lg sutsurface
sewag• d'isposat facihlieL If ~tere-d: ll'l•1 _s.ho!.lld tit properfy remov!d and backfilled,
P'Jl"$uant _lo Co\Jllt., Health Oepartment guiderl(1es. Oot9 completc-d. th• opose-d s1.bg:ra<!e
1urfa~ inciu(fll'lg wealhered 01 porous terTace depos~s. $,houkl bt st~f'ied to• minimun, dt-pth
of ll-ilid'les. moistur• tonditiOned to al least optimum moisture: content. and r«-ampactt-d.
fiU Placement:
Subsequent to ground preparation. onsite or impol1 soffs may t>e placed "tn thin {15t it)ch) IJ/'ls.
c!eaned ot vegetalion and debris. brovght lo a least optiffl'.lm mo is Me content. and cornpac:ed
10 achieve a rnir.imum relative compaction ot 90 wcent of Iha !aboriltory muimum densit.,.
II is reccrrvnended thal ant impol1 fil so1i1 p!i,.ced onsite bti low in e,pansiotli potentiaL A
sample of import rnateria!s should be: submitled to GeoSocrs. loo. prior to import so that, l
;-e-ctssa,y, addi:liot'lal !abo-alcwy o, cllcmieal testing ea" l>9 performed to verify that the "tnle~ed
import material is eompa!Jble with onsrte material. andfot is in accordance. with recomrne~ations
provided by this offite. lmpo,1 malerials 5hould be low e,.-l)ans!ve {!:.L .. $0). If highly expans!'.-t
soa, ar1 im!Xr.N to ihl sit•. &dditiotial foundation recommen<!ationt mat t>e n-eteua.ry.
The foundation sy,lem for atlJ' &tructurt should b• founded entirely in compe!ent !en-ace mater.al
or compacted fil, If foundalioos art lo t,e embtdded i-,to compac!ed Ill. the area t>enuth ll'.e
proposed st.n.>cture should be overc,cavate-d a lru'limum of three (3) feet be-!cw pad gr~• fot
on, sloty strvctures. Over-excavations f01 bullc1t1;1 :s.hould bt completW fo, a minimum !ateral
dis'..nce of six ($) feet outs ice extreme ex1erlot found.ition ei.ments. lf foutldation1 are to be
embedded inlo competent terrace maten"at (f.a., raised woo-:t f!O<lf' desig.ns). rep,ocessing of tt",e
u~ one {t) foot~ of native so1l1 is recommef"K!e,j fo, a minimum lateral dislanc. of ff,,,e l5}
feet wt.side lt,e builall"lg envelope.
filru?.!.t No slopes ar• pfaMed ta~ c-onstn.rC:.e-d d~ this phase of impfcvements.
FOUNOATION RECOMMENOATION!
Genual
FQUl'lC'a:tion des,W, and c-ons!Nction re-cornmencation1 are based 011 labor-ailory testing and
e~ering i,.nal)-se1 of onsittt e~ malen"als anticipa!ed to la e,Jposed at pad grade. Tht
f11~i,.lion s:w-stem sh<>uld ta. designed and c-onsltvcied in accordance with 1?ie guiderlfleS
coota"tned il'I tt,, Uniform BuMing Code.
8ast'd on our ot>servations and !esl results. earth ma:cn"als on site are of low e,pansl-vt potential.
Th• following: design/conslNclion criteria have been tla$ed on tl"le ilSSumplion \hat f1I (imlX!(lJ
so~s with a low tJpansion potential wil b4I pfa~ within Jot. Iner ea~ fl}Oling reM'lforrement and
footing depth would be recommended I more e~pan!.Po't tQflditions are present.
C~o$0U1, lne,
MR.-OAKLEY PARKEA:
W.0, 181>2-SO MARCH t, 1US
J. n-.e moisture. con:ent :if tti, su~rads ~oilt tieneath f;OQF {o, stab) areas should be ~al
lo o, greater lhan opllfl'lum rno,stur9 content p/Y.11 !o pourir>l sl;.t,s or 1einfor«lment.
Retaining Wallj
G11n11raf:
lh•_d_esign parame!ers provic!ed belo,t assume that low e,.-;,an$Ns soITs ar1 u~ 10 backfil ar,y
~ela.,ll"lg waffs. If rm-d"11.m1 to very l'l~hly e,i::anslv, Will are used lo tKkfil 11!1)' ptOposed warts.
lr'\Q"eased active and al-rest earth pressures w1I need to be U'JlizM fo, re!ainin-.J wal desig1t.
These paramelers do not iodude other superim;xised lead'"~ eof'lditions slid'I as lraffi(:.
..... sv,.,ctures, se:ismic events~ ad~ersa ~eok>gie condi:ions.
Sulld'iog want {1.e., $lem wans) below gr isle, 'lohould be Will!er--pro•:lM, depeod°lf\1 on th• d~e•
of moi~fur• p_rote&on desir&:!-Th• fou:"K!;tlion sy.s:em (o, lt,e PfO?CSed re!ainin<J wans r.tiould
bt designed Ill aoc:ordance with ttie re-commel°\Calior,s presen:ed il'I th9 ?i~in-. "Fo~.1:i011
Recommend,1tion• section of this report
ltutralned W.tlls:
Any retain~ wa~s that wil OI restrair,ed ;>rklf to pl~ al'ld eomi::acting badcfil material°' that
have reentrant or male, come~ should OI designed fot illt-resl equPo'alent fluid prenures of es
pd, ptvs ant appf1C-ab!a, 5IJl'C/"l~a, lcad'"in!J. For a.eas of male o, reentrant com~ t.'"ie
restrained wal design should ex1end ii minimum disiance. of twice: t1'le hei9h( of th• wal la:erallr
from tht oomer. Buikfll'lg wan,, below gra(!e, W'tOUid be water-proofed, depend"ing: o/'I the df1?res
of moi~turl protection desired.
Cantilevered Wa.111:
The recommendatiOl'ls presented below art fo, canblev~ ~etaining wafis up t1J 10 feet h~
Acelvt earth pressure may be used fo, retairl~ wal desig:,, provided tht top of ttie wal is not
reslrained from _minor deflections.. M equlva!enl lluid presS\lrll approach mar b• u$e-d ta
compute the hOrit:ortaf pressure againsl tlit w1l Appt0prii1!I t,uid'. un,t ....-eights are presented
below fo, spec& slo-pe. gradients ol U"ie relained material
Surface Slope 11f
Rcla.inl'd Materfal
Horitonla.l lo Vertical
Wall Backfill and Oralnagl':
level
z to 1
(qufvalent
fluid Weight
P.C.f, ..
"
Al ~lainir,g w;ins st-.ould t>e pn;IV,ded with an ade,qu.i!e b.-ckdr.iil't .&NI 11u1let Sf stem (a minimun,
2 outl&ts pet' wall). to prt\·enl buildup of h:w-dro:i,laf11: p,rnurrs iind t.. designe-d in &CCVrdani;e
with minimum standards pre!.entf'd ticrtin. Gravel ustd in backdrain systems should t.. a
rnin~m of one cub,C foot per lineal foot of ~8 ta 1 irK;h c!ran cru~ nxk wrapped in nnet
fabril!: and enca5ing a 4" perforated plastic pipe. M"ndrairt, Tensw Qt equlv,1lent ~paner di.iris
ma:, elso-be considered.
MR. OAKLEY PARKER
W.O. 1802-S0
G~oSolh, lnr.
MARCH 1, U95
l'Jnoff. Down ~poult YIOuld out~ a minimt..im of r111, feet 1'ron'I l!',e propo~e-::1 i\ruciure. o, inl!t a
&ut.surfa-ce draina,;;i, s:w-slern. Aieas of :t.ttp~• ma'I develop dut to irrigalio/'I or heav, ,ainfat.
Minimizing irrigation wil le$sen this potential If areas of se~p~t d1rvek>?, re«,mmendations fo,
minim!~ this erfed could bt providfrl u~ requt'loL
Utility Trench 8ackfilf
>J utility trMGh backf1I in structural areas a.nd bE:nuth 11ardsca.;e. fe;1turu t.hould ta. bro~t
Ii> at leasl oplirn-Jm moi::.tu.r• content aM men eom;ac:.~ to ob'.ain a mkiimum re!atlv•
tompaction ot 90 ~nt of !he taboralO('J statte'ard. Observ-atioos, probin-J antJ, If deemed
necessary, test.'lg should be: performed by a represen!atlv, of this offict lo venfy comi,a<:'.ion
etl'orts ¢1 U-,e wntractor. This should includ9 area drains and d"eep ~ali<>n rin, conduits.
Sand bacldil sh<iuld not be al!Qwed in eX:eriot tr~es acjacent to and ·Nithil'I an area extend'"~
belcw a 1;1 proj~edi from !ht outsid, !)ottom ed~-1 of !ht footinj. Ex'le:iOt tr ax.hes ~uld not
be cxcava:ed below a 1:1 projectior1 from tti.• bortor.1 of !he fo-JOdation 5yslem. !f e,:eavated.
1hese trenches would undermine supj)Qlt for the folJO":ation sys:~m po!eri!ia!!y c:-eating .¢-.erse
oonditior,s.
PUJf REVIEW
f"inal gradi1g, silt devclo;:irntnl and fO'..n-:!ation plans shou~ b9 :f'Jbmitted la this office. for review
and comment as the p!,ans become ilvai!ab!e, for the purpos, of minimizing, ant
misunde~!andiri,gs ~etweer\ lhe plMis and recomrnenl'.!alions p,resenled hereilt. In addrtiOn,
foundation excavations and Or1hWOrlc conslruction performed on tl'i• site should b• obsi.we-d
and tested t:r this office. If conditions art found 111 di~et s•Jt:slanliall)' from these sla:e1,
appropriate recommendations WQ\lld be ol'f'ered illl 11':al time.
LIMITATIONS
The malarlals otiserved and encoun!e:-e-d o/'I th• project si!t an4 U'jHz:e-d in o_. !abor.llory s!vd1
are beri1rvf'd representaUv• of the ar-ea: howevef", sol and be--droclc. materials vary il'I cllara~ef
between cxcaviltionS af'l'.1 nillturat W.crops of condi'.ions e,pose-d durirtg mass grad~ s~•
conditions mat vat')' due to seasonal ch:1n1,u o, 11t1'le, faci~ GeoSoils, lne. assumn no
responsibflt)I or Jiabili!r fo, work, testing o, re-comrne~ations performed o, ptO.vided by othe~
S~ our stvd)' is based upor, ltie sh materials observe-d, sele-ctl\-·e laboratory testing a.nd
erigineeriogi anal)-sis. ttie C'Or'lclusiort1 aPd re-commendation1 are-profess"tonal opinions. These
opM'lk>n11 hilvt been derfve-d it1 aocordan-;• with current 5landars!s of practit-9 and no warranty
it expresse-d or "tmpfied. Standardl of pr.lctoc• art subj,Kt 111 d'langt with tim•.
PRELIMINARY GEOTECHNIC.AL EVALUATION
APN 203-30'-15 (LOTS 2S S 21 IH BLOCH: lS)
TRACT 115, VACANf PARCEL ON MADISON STREET
CARLSBAD, CALlfORNIA 92001
FOA
OAKlE't PARKER
3215 MA&EL LANI
CARLS BAO. CALJfORNIA t.1:0C/S
W.0, 1SOZ-SO MARCH t, 1955
REVISIONS
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Date Ip-~-~~
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Of.} Sheets
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