HomeMy WebLinkAboutPermit Field Test & Inspection Report 2007-8-8 (2)
K & A Englneenn!!, Ine.
Select granular fill, consisting 0.510 Z.O-leet of %-inch H well graded crushed aggregate, was piaced on the
subgfade illlilto m 12.inches or less andcompacled. We made random tests of the in.praca illy densrty ot this
fm and hlNa delsffl1ined that li1Il average dry density exceOOs ~5% of maximum as determined ny ASTM 0096.
A copy of the h-eld last msuits is attached to l!lis report.
SUMMARY AND RECOfIlMENlJATlllNS
Gooel3l Suitability
TIle foundation pad, as constructed, is suitable to support the proposed new single.f3ll1lly residence supported
by a corwerlliorHll casHn-piace concrele SlJread footing foundallon. We recommend acceplllnce clIne
IO~Rdalilln pad, as c!ll1str1lcled, by lke tuta! building uIlicial.
Rlurnlalioo Suwor!
TIle IO!Jllllatinn pad. as preparoo. is $tIllable to SlIP1lOrt a convellUollal cast-In-place concrete spread footing
system. The recommend allowable design allowable bearing PIllSSUl'O is 2,5i}()-pounds per square foot
Footings c011stucted adjacent to ttll! SOlie 01 cCllSlructed (gmm.1ar) filllllinches should be construCteO so t!Jat
the fooling edge closest to the top of 1I1e fill embankment Is no cklser than 413 of the blmch helght
Expansive Soils
The decomposed or highly weathered sandstone has a low f)01ential for volume change with changesln waler
coment. Nn further a!ldltional conSlructiOn is requlretl te address eXllaosive soils.
. llrainage
We recommend tllat a perimeter fOOlillg drain be Insla!!ell around ll1e all sldllS Of 1I1e foundalion adjatent to cuts
into the hi!l.'iide. Thl! toating drain consists of a 3-inclt minimum dlama1ef pertprnled drain pIpe povere<l with at
ieas! 12-lnclres of drain rock !halls enveloped in a ssparafion gaotextile.
Mdl!ilJnally, we recommeoo co.~strucU(ll1 of a low-po!i1l crawlsllaGe drain. The crawlsllace drain inlet soould
be lOcated al tile low point of the crawlspace at base of tlre granular fill. with the granular I~! sloped away from
me drain inlello avoid so~ or gravels falling into tn. drain. A grate or lilWf should be installed O'o'llf Ihe Inlet to
avoid clngging of !he drain.
Water tollected tWin !he fOOling dr1lins and li1Il row pclrll cmwlspace dmi11 should be routed to a Sllitalile storm
rll<l!O dispusal poin!, do.....nhm of lhe loundation, using a saud dl1linpipo.
SPECIFICATIONS
Fcundalloo IJralD
Petforallid drainpipe should cor.sis\ rigid ADS 3000 Triple WaR, scl1edule 40 PIle, or an equiValllfll rigid pipe.
The perforntians should be placed dGvm. The foundatlon drain should NOT Oe corJlCcted to the roof drain
Imle1m the GOl1~O~ is made aownMI Of lt1e 10tJndi.illon utilizing a bacldlow plBVsnllor. dllY1ce tMl pm!1itlits
roof drainage from backing UIllnlO the foundlliioo dmin system.
Drain Rlltk
Drain rocK shOuld conSIst of clean, durable, opl!n-gralJed round or crJsh!!d sma. The rock should be piaced
!)Ver and III tile side of the perforated pipe EO Ihat the pipe has a minimum 01 12-irn:Iles of cOVltr. The drain
rOCk Shalf'" be co--roroO w111; ~_, ~,;0l1 gao',IDctiie
Project 135.07 275 Mountaingate Dr., Spl1ngfield, Orogen
Cr,snt Ca13lys1 Custom Homes
Paga 2 of 3
August 8. 2007 .
II & A Elllllneerlny, IBt.
Sepallllien Geoltxtiie
Sl;fY".ration geoloxlite should Ill! placed on the grade (at fooling 10veO prior to pia cement of the perforated pipe
so lha! attar L~e pipe is laid and drain rock placi!, the geotexlile ca.'! cornplerely wrnp around the drain mck.
Separation geotextHe Shall consist of a PO!Yllropylene non-woven needle-pUIIChI'AJ fabric tl1a1 is stabiiized
against deYlOdalioo trom ultrllviolet light axposure (sunlight). lhe fabiic sMuld ha~ll a minimum AOS 0170 (US
sttJ. sieve size). .
l!MlTATlllNS OF TIllS REPORT
Tl~ report has been prepared tor the exclusil/ll USIl or Galaiyst Custom Homes end !1S design consultants or
Sllbc;ontrnctors for L'la subject pmposed structure.
This geolOOlmical invesligalion, analysis. and fficofllll'.elJdalions m911t the standards of care of r.ampetent
gemeC!lnical engineers pmilidilljj similar ~es at 1M time thesa Se11fices were providall. We do not warrnnl
or guarantee lhese recommemJ.,"i1ons, site surface, or subsl1rfac~ comlQions.
Toe scope of our services does not inolude construction safety precautions, techniQUes, sequences. or
procedures, except as specifICally reco01rlWlded in this report Our selVices shou>'U net be intarpreted as ao
61l'1ironmWal assessme!1t of sire condiOOnli.
Thank you tor lhe opporlimily 10 be at sarvice. Please cali lIS if yoo have queStions or need further assi~ltance.
Sir.cerely,
.........,<-.,,,.:<<,..'...;-,
'.-..."'...,.................-<<<<,0;.;
Prc4aCl: 135.07 275 Moul1!ainllilte Dr., Springfield, O~on
Clillnt Catalyst Custom Homes
Page 3 013
llugust 8, 2007
I
0el1~ ll! Suit am! SIlI1-Aggrll\lales 1!l-!'I1lce
AS'fM 1J2922 aml1J3017
Projecl: 135.07
Silll Addms: 725 Moon~are Dr.
I'ormn Mo: ~DI\P20{)7-00122
Dalll: 17/2512007
Densily TeslTyp.': OT-4
!ljlera'.or.!SS
Malarial T'II'll~3!4.{rWt. minus dens. graded crushed aggregatll
I MaJlmem l)f\'!lellSliV, !reilm.o
I Siaild\lrdf2alllln and Irolerellw i:'.!m.~A !lensil<! l II> Moidllre, I
(Stanllan111a11lallg~1J1s.:.D.:L._._. __.___~.77 (3.0:)
0.96
, M.itl Ill~
,
I lJemlty, llensRyJ Wale' CompWilln,
I ,
Tert No. pel ll&~ Ccnlant, % % Rlllllllrb
'! 1 133.9 129.9 ! 3.1 101.5%
2 134.5 131.0 , 2.7 102,3%
i
3 138.0 133.3 , 3.5 11)4.2%
4 ._1.:lO~.L..t..~~.~L'I"'- 5.5 96.6%
I
I
I
I
I
I
I
!
I
AVlll<lla:
Sttl.Dw.:
I
I
101.1%
3.21%
, Olrecl Transrnissill!l {01j (spetitf dIlpth. ill.) or Air Gall Ba~attar (AGe) (IPetffly(T)oor:hab!e Of (U)lltom:natlla
rr.otli3
Tast perlormed IL<;inq Sp..~mall ~J"CI.arCllrp mooel C.300, SN 21113
C~ent Catalyst Custrlm Homes
?1Ojt!ct: 135.07
l( 1\ A E"llilmcring, In..
I
I
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I
SiiY'2U07
{p~.'1 Jt{vm.atWn
ff!!~!R.1b Build On
E~.~.~
July 21,2006
.REVlSED FEBRUARY 16, 2007"
Mr. Mark VUkailovlch
Suntrust Land Company LLC
750 N:>I'l York Olive, SuitE 204
Elend, Oregon 97701
Re: Earthv.-ork Summary Letler lor individual 61.1ildir.g Lots
Mountalngate Subdivision - Phase 4 Lots 1 through 129
Springfield, Onigcn 97478
PSi Report No. 722-65013.j03
Dear Mr. Vukanovicl1:
?Slts pleased to submit our earthwork summary letter and geotechnical requirements
fm Individual lJuRding lots for the Mounlllingate Subdivision Phase 4 - Lots 1 through
1.29 in Springfield, Oregon. PSI has been providing ObseMltiOll$ during construction of
the building pads from February 9. :1006 to present. The earthwork was pe,l,,,,,,,,,j by
Oakritige Sand and Grave! under the dimcNon of the general contractor Eugene Sand
and G>avel. Onsllrvations during our site visits were OOCUf'!'IGmad In our daily freld
mpOItS which WllrE! typad and contained a aile plan showing the areas the contractor
was worl<.mg on tllosa cays. Pleage reremnce those reports 722-65013-j through 722-
65013- 102, Ctlpies of tllllse mpolis \\fflre also provided to Eugene Sand and Grovel.
Oaktidge Sand and Gravs;, CJly of Spring1leld. and The Faweau Group. Baaed on our
o!Jwl'Vations dIJllng !he time frame manlionerl abolffl, the earthWQl1< was performed in
(laMlaI a........ Jones with the pro1ecl ';""""..1 ..,iail report prepared by Soire ane!
ASS<Ociates, Inc. dzted April 5, 2004, City of $,.,,:..,,::.;Id requiramenl$. and d,.,,.,I;....,,Cle
pmvisions of the current International Building Code.
The secondary purpose of this lettEr 15 to ll'Iltline geotechnical 6. 'W~ ,~, ;, 'J inves!igatkms
that should be cornpletad for individual 1Ol$ 1 through 129 prior to r$Sidenlial
c.onslruclion. To be cOflSi5teol Wi1h criteria estabUshed dllling.conmrut:lion for. Phases 1.
2, and 3 by Soire Assoolatlls, Inc. end KA Englneering In lellers datel.i RmnJSry 10,
,WOO <!flU Mm"Ch 28, 2006. ,"""""",;;vely, we aro recommending level I and Level II
g"""",.:",iC!l1 IllVes1!gaoons 00 ..",r""...ed on lots 1lhrougl11291i1s follows:
levtl! 1 Ga~lliCllllnwlrtigatian
To 00 conslstl!n! willi the previously submtt!lld I'el'Wl'ts. we recommend .. level ;
geotechnical inwsligstiOO be perfurmed for the residential bullding lots wham the
:subsurface COl'ldi1iOmi are known ro CCIlsiSt of competent son or rock' and have been
nbsel'\led by PSI during grading operations pel'furmsd by the esrtn\l,lOrll: <:ontractor.
lots in lha Mounlaingatl< Phase 4 are-e !hat fall inln this category ara 7 through 22, 29
through 34. 40 through 51, I!md 74 through 101.
?iOit~l~!)~ 1TId:.n;.I>~. illC 1I1(Jri:)'A Sha!Gy S1te~f'" St>rl~i~_OA ~1.f77 ~ ~&un4O-ge~$I" ~ S:;l:7-<<8.J~6J
Earthwork Summary Lattar for Individual lots
Mourt.ain Gala Subdivision - Phase 4 Lots ., through 129
Springfield, Oregon
722.65013
Page 2
1. Verify IMl sits work does not arlvarse!y Impact edjacent lois, t.'llt:otie$, slid
strael improvements.
2. An examinallon of all foundation excawlions during construction to verify
design criteria assumptions and to provide rncommandillions, if necessary.
3, Now any special. uooJljlOOted, or la1enl condltlol',s that would require a Ia'llllll
invesligatlon.
"Parograph removed regarding ...""f,...llerl lots. The SurfaCIl $(Ills 11'1111 be
addressed during Itle Level 1 Geotechnical1fM1Stigations."
As mentioned in our previOusly subm;tted reports. Lots 97 through 99 have been ClIpped
wi1h maleMl that is potenttally eJq:)!Insive !:lased on laboratory rests. This material
sl1O'.Jld be removed pOOr to residenlial constructiOn.
level :1 GeotGclmicallffll'll5tiglltion
',ve suggest a Levsl11 ll'lvootiglitlon Ila oompleled on all other remaining iots in Phase 4
",tiers no grading operations \'lave yet been .."";,,,,;,;;,l! and the lots l'l1'9 currently in their
natural slilta, Some of these {on; may be stesp, lh& subsurface COl'lrlillons unKnown,
and 5trUcllll'allills alldl1lf retaining wans may be needed. We recommend lots 1'through
6, 24 through 28, 35 through 39. 52 through 13, and 102 through 129 be induded within
the le~l Ii category.
In gooera!. the lots illlavel1 may require ~,^;..",,:Jtl$artl1work or grading operations to
cons1roct the singie family rasldences.
For lots within lha Le\l$l II category, we reoornmel'lll a Si~fic geotechnical
in\ll!lsligallon be compl&ted pMf to home site development. Within thl;lSa areas,
particular attentitlll should be gi\IGn to: unstable grou."d, soWWet soil conditions,
a,q;allsi~e soils, drainage, cu\S.'liIIs, and retaining walis. The following items are
suggested asrninimum reqllirem<mts for 1M geoteCl1nlcal ilwestlgaticn l'epcrts.
Earthwork Summary Letter for ~ndlvidual L.ots
Mountain Gete Subdivision - Phase 4 L.ots 1 through 129
springfield. Oregon
722-65013
Page 3
,. SUbsunaca explorations using either exploratory test j'Ji'.s andlor soil borings te
determine foundation condHions.
2. Lilool<ltoly analysis of the soils to include at least moisture content and dry
deMity, gradation, ancl AlterbefQ L.\mits tests. Testing may aiso include
Expansion Index if the soil Is potentially expansive based on visual analysis,
3. A writt8li report prepareCi by a qualified gentechnical englnssr that summarlzes
th8 site conditions, presems the illboratory test results, and addresses the
recomnwndaoons for cuWfins. foundations, drainage. retaining weils. and other
Items that may be necessary to tile development of the proposed residence.
Similar to Level I lots, we recommand thai a geotechnical engineer or represenlalivo
observe these lots dllling excavation to verify that the above lillted l:Omiitiooo ha.1Ie been
satisfied !lnd the subgrade con<iitions are suitable for conllll'Uctitll'. As a minimum the
geotecnniaallll1gmeer should 'provide:
1. Verify that site worn does not Ii!llvelSSly Impact ll.lliacent lots, utifltles, and street
improvements.
2. A..~ ellamination Ilf au roundation excavations during con$ltU~ion to verify design
criteria assumlltitJns and to provide reccmmandations, if necessary.
3. Note any spacial, unexpected, or latent conditions that woUld require a level Ii
inllasllgation.
It is reoommanded that PSI be mtained 10 examine and identify soli exposures created
dwirig projeet exCS\'ations to verify that soil conditions are as anl<<;ip$ted. We further
!'ew",...""J 1hat strut:!ural fills, if any, be continuouslY observed and tested by our
reprasentslive to evaluate the thoroughness and uniformity of compaction. Samples of
TIll materlals shouk! be submitted to our lahoralOf)' for evaluation prior to pia!:ament of
fllls on site. .
. This report is for the exclusive use 01 the addressee and their represantatlve to design
Ine ....~..""'ed 1iIl'IIc:ture dasClibsd herein and tt; prepare ccnslruction documents. The
data, analyses, anti mcommendatiolls may net be ap",_;"le for oth!ll' slructlJras or
purpos~. We reccmmentl tr><at parties w..,~,..p1atll1g other structures or purposes
contact us. In t,'le absence of. our written approl/lli, W'8 make no represernatlon and
assume no responsibiUty to other parties regarding this report.
The . ~......""uendations contained in t!'lls report ara b36ed an the available subsurface
infomwtloo ol:>tainsd by PSI, and desigr, detailS tumished for the proposed project If
\here are lIny re~1sions to the plens for this project. Of if deviations frQlT> the subsurface
condiliol'!s l1<lte<! ill this report are encOUl1tarell during construction. PSI should be
n~if.oo Irnmed!slely Ie determine if changes in t~ foundation recommendations are
required. If !'51 is oot tetelned to perfonn these functions, PSI wili not be responsible for
the Impact of those conditions on the project
Earthwork Summary Letter for Individual Lots
Mountain Gate SubdiWJloIl- Phase 4 Lols 1 through 129
. $prtngll<eld. Oregon
7;>.2-65013
Page 4
Services pl!rfcrrned hy the gooteclmlt:al engineer for illis project helle been oonducted
with !hat lavel of care and sklll ordinarily exartised by members of the profession
currently practicing in this area. No warranly, e"Pressed or impaed. is made.
R~.......,(,iJlly SubmSlled,
re, ";~ional Service Mdulifries. 1m::.
~v~
Raymond V. Allperfi
Project Manager
Charles R. Lane, P.!:.
Sfi!1ior GeoI.eclmlG<i1 Engineer
RVA: Ml
c: Eugene Sand and Gravel
Oakridge Sand sno Grllllel
The FaVfeau GI:oup
City of Springfield
Afulchment Table of Level 1 am:! Leval 2 Lots
lft~ lriformatlon
,,!!.:iiiJl1tB .1b Build On
tb~ux,1fng GO c....~~. ~
Mountaingata Subdivision Phase IV Table of Level'! and 2 Lots
FE~T~ "t"'r LE'll!rz ..-.......l
eva1 .
m_____.'_.'..~~_ ._~...._........_"(... ......,r-.. ......2 ~
I :2 I oJ
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I 4 I oJ
I 5 ~ I
I II '/ ~
I 7 ~
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I 9 ,
,
I 10 "'i
11 .J
12 v
13 oJ
. 14 ,) 1_....
I
I 15 ..J
j 1ll '/
I 17 v
18 "'i
, 19 .J
I 20 ..
i 21 "'i
Zi. "
23 ~
i 24 .J
, 25 v
I 26 .J
I 27 ~
I 2ll "'i
I 29 ..J
I 30 v
31 "'i
32 v
33 '.J
34 -i
35 ..
36 v
;)7 '/
3B .---- oJ
39 v
40 ..
41 "
42 .J
43 ..j
44 oJ
4S .J
46 ,)
Moutainga'.e SutxlMslon Phase !V T "b!e of level 1 and Level 2 i.Dlll
Pm~n;&! Sim";:;e ~trle$. 1Te..1040-A Sh~~ semel'" Sotf~. OR fTtn7'" PM"'S54}I1..re..~" ~'SA.1~n63
Page'
ffl~ll~'B~:/f:
n~~._,;.:1fta9 a ~--4ftJ~ . ~
Mountaingate Subdivision Phase IV Table of Level 1 and 2 Lots
rUifl!.C.~CC..'."C'.""T"~'C .l..lt~1:l=c.c.r .....C.(EliaL2 ,
...,_~,.~,_~~._..".,...ll._~~ ."'~... ......................~..._,...
. 47 I
j 48 " (
I 49 ..J
50 ~
I 51 'Ii
I 52 v
I 53 'Ii
54 ..J
.1 55 ~
1 56 .
I 51 v
I 55 'Ii
I 59 ~
60 'Ii
f 61 I
"
62 v
I 63 ..J I
i 54 .,J i
i 65 ~ I
66 v I
67 .J I
'1 68 <i
1 69 v I
I ia ..J !
I 71 " j
! 12 'Ii ,
, 73 v 1
I 74 "I' i
,
, ,
, 75 .,;
,
76 .,J I
71 " I
78 ..) I
79 <I 1
SO <I j
81 ,; I
112 " 1
83 ..J -
i 84 <I
.1 85 ,)
I 136 -{
I 81 'Ii
sa I -J
Ill! oJ
00 ! 'Ii
91 -I
92 "
MOl.ltaingall> SIJ!ldNiaion Phase IV table of w..,,11 and l.....,j 2 l,.QlS
P_~~ ~f'JSccmdH~rms.:nc." {(HD--A e:!wi~ m~. 3p~M. OR 97-4:77. ~~S'l17i1e-sa--;9...~$lS1J1iB.1~S3
Pagel