2226 Wall St - Soils Reports 1998wim? .11fERIC.1N
1 E\GI\EEltl\C
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O•_ccriber 15. 1998
Mr. Dan Wolbert
2226 Wall Stree[
Lal-an,NIN 55122
l:E: Repert of Hand Auger Borin; Results
Existing House at 2226 Wall Street
EaQan, iNIinnesota
AET 02-00875
Dear Nir. Wolbert:
CUNSULTANTS
• C;EOTECMPJICAL
. i.1ArcRIAL.S
• EN`/iRONMEN(AL
This report presents the resutcs of the hand au?_*zr borin; recen[ly drilled at the referenced site.
The wor1: H as done in accordance with our discussions wicn you on November 2, 1993.
Project Description
The site is your single family rzsidence at 2226 «all Street. We understznd that the house was
conscructed during 1997. The house esperienced sign:ficant setdements at the northeast corr:er
ot the atcached eara;e.
In an a[tempt [o correct the problem, the ouilder did some repairs in lune of tfiis year. «'e
unde:5rar.d tha[ [he repairs consisted of excavating the soils below th: footintz ac th-- northeast
_ar.i"c, placing a 3 foue [hick washed agurogate pad, and constn:cting a new concrete focting io
hear on the aggre;ate pad. The dzp[h of the excavation Nvas 7 fzet below the !_*arare slab (.is
discuss'-d in a leeter by Inscant Testin; Cu. dateu 7/14/93). t\ por[ion of the garaec tlour slab
:Iso replaced. We understand that the new ;ara.ge slab was dov:eled inco the exiscin." siah and
founda[ion walls a[ the edees.
Qased on the cerci;ica[e of survey for the property, the garage slab is a[ Elevatiun 974.3 ft. ar.d
the bzsemen[ tl(ior slab is at L-levation 966.5 ft.
ReSUltS
One hand aueer borin, ?vis drilled on Noveinber 5, 1998, in the basement of }?our house in the
area of your fucure bachroom.
"fhe s,)il borings ir.dicate that a layer uf t:ll esis[s below the bascment slab at the loca[ion sampled.
Che thicka•_ss ot the till in the future ba[hroum arca near the nurth side uf the huuse ii 21".
'A71 n(!'HM,\f IVi. ACTIUN ClACLO rl W
550 Clvvcland Avenue North • St. Paul, MN 55114 • 651 •659-9001 • Fax 651-659-1379
;`,.iuth • hinrkatu • ki.vshall • Flochi;.^.U,r • .^/ausau
Mr. Dan Wolbert
Decemncr 15, 1993
Pa;e 2
The concrete slab was measured ro 6e 21h" to 3" thick in the openin-, in the Yloor. We also used
an engineer's level to measure the floor flatness. The flour in the area of the future bathroom had
an elevation diEferznce of 0.04' (1/:") over a tive Toot span, slopin; from the walls toward the
middle of the basement.
The natural soil deposits below the fill layer consist of alluvial and olacial titl deposits.
Standard of Care
Our s.rvices for the project have been conducred to those standards considered normal for services
uf this type at this time and location. Ocher than this, no warranry, either express or implied, is
intended.
If you have questions, please call me at 659-1101.
Sincerzly,
?
R.obin L. Flicki?eer
Geotechnical Ensineer
Reviewed:
J? mes C. Rudd, PE
incipal En;ineer
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CEC-0a-;556 14?50
BeauW
INTER F
Diavem6c 30, I993
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D?C 01 )gag
K"'cAflYN pRAT.
!Dl(JWWCUS GLll,y GENTen
Mr. Ioa Barzta
Zndch Iasurancr Campmy
P.O. Boz 7731
bdianapclis, N 46206
Be3r 'v(r. Haz:ett:
wmm bworftc caffpotdgvm
aeoi wMhf,q,,,...Ow sMIN
?.C. Bos 79108
Ma-.,,,u:. MiM?e 55sia41ca
512441.3600 Fcf:9d1a151
Cns~s md SeienJSU Sm+n9
dw 3m"B md Nalurd cnWOnmavt
P . 02/ae
Projcct BABX-98J64
Q=.: Crate=?u:ca! c•raluadea, Exisang Gangs at `x%o16ez: tZesidatce, Z?26 Wall Stie.:;
=agzn, Minnesara
1n uardancr wi'u your :s: acst and x• aordinuion wih Mr. E:mer B:anP, Yuur ;rojec:
strubuzi eagineer, vre hav.explomd the sail caadidans ia the uea ;:' ;he 36ove..refereaaai
317-9e TAe purOose ai aur =plor..dea :ru ro doc•ameat the = sring .,uil candirians anc
pz_ vide a disc45s:oa 35 ;o :--jair of ;he d"strz,; observed u the garage.
E.tplorstocJ Pzo;.•am
A_oil 6ocag vr¢S zaicen 1c he property in Ocm6e- ! 398 ac the :e=Man shown aa thn aa:c.:c;
slcecch, iae baring •.vas dnac with a gaoprobe dnli rig moua[ed oa agaai1 sue'c_ Tho
geapmbe wyq use¢ 'Occausa the test loeaGon SQi. Kapo maSL de:ucj was iaside the guag;.
TSe boring was acaually 3aee adjcce:u to the garsge •xnea ic bc=ame obvioas thu the
gcoprobe wayld rsac 6e s61e U enrer the gnrag•., despite ia low 2rc5,e.
T.ze czQlaramrf 6onng w? :xteaded cc :hc 22_Coat deprh. Fiil soiL, .rer racaunterc.i ia ta
6a[tng to apQroximately the 14-fnat depth. T'ae uppa 4 fccs of fiIl was prjmari]y clayey -jan3
wi:h a IiNe grave]. pt the :urfaco, the c:ayry r.ad 511 was quice luose, but it became
semowhac more eompaet wiclt depth. Bdow the 9-faat degeh, Wc Yill was muc;z more
heterugenrnus. That is, ic 6ccsae a:esa :]ay with a titt(e silry saad with a littk gravel. The
ER aQDeared ;a be quicc laose around the 12-faoe depr.4 hur rarbu campac: az the 13-foot
depEh. Ac apprszimacoly the lafooc deQrh, silry sand ti11 wu encov,ata:d in the boring. Till
::fc:s ta saiis depasited dirc:ety by glaeial accion. Till caa charaez.?istically wneain layers
and maes of saad wichia the eiiry sand masriz. AIso, aumaous cabblu and baulders caa be
prescat Thc acdon of the geopmbe ag iadicared Lhat the Cll soils we=e in a medium dease
cor.dirioa. Gmundyaser was aot enrauntered ia the bacing.
Ga -age Repair 8issory
+'h< garsgo at =26 Wall Street hu bwa repaited in the past, aeecrding t•a ytr. Kcpp who
revuwcd du gungc Accantiag tn Mr. :CaPP, the gange 5az experiencad seIIlemeat sinr-- its
conseuc;ion ia 1477. Put zyairs re ihe garage inc;uded rop]ac:ment v¢ the floar sta6, as wdl
MCU??O-:558 ia:Z2 6129414i5: 55':
P.a1
DEC-04-1558 14:5;
P,03ip8
-tur+ch Luurance Compauy
Projat BABX-98-764
Novembc 30, 1998
Page Z
as coasauaion of a 340 S-fooc deoch of :amput_d aand acd gravel co "6c;tc support" ehe
aarthcast carncr of :he gacaga
Durussioa
In our opiaion, the distm; ro the gsngz is due to wntinued settIemens of the loose fill. Tae
fiU it sertliag ia par[ under ip ovrn woight aad, m a Icssa exteas, due w some minor vibration
from the aummobila dri•ring in and our of the garage.
Based uyoa thc soil boriac infermacaa, ic appears ;hat G iacya or mc:e of sr. ;^menc is
possiole w:thin ohe fi:I bcacarh the ;arag=. From 1ir. RapD's desciproa ai the garagds r.pair
historl, ic aQpeass thaz ahaut J iaehes ai >e;tlcncac bus occu=-„d. 'I"nus, we weuld esti.-nate
raa: ac icasc 2 inchcs ei seeiemene ss possiole givea the candirioa of tbe fflI soils. The sbov_
zst. nate is bastd largeiy uocn the :n?osmatian providrm us and the rr.sclts oi the onr'ng.
5ir.:-- the 5i1 's a var'ahle in _s de.usry aza deptS, ic is nossibie -nac :,L.; M, wilt potenualiy
ser::e aerc, ar Ic;s at oc4r, laoarians :saund the gznga.
it._ wc 2scsc :aiaeca aetsads oi _epaL oI hc gamg: arc ihe :oIia-x:ag: imprvemeac a: wa
er.fszng 811 2ails in placa; ar :aeycr. of the 3aroec and l7oor on a'ouacsnon system thot
exreads ;hreuga 'c.ie :ill and iaw the aauve n;l ;oil; be:aw. Gi•rca the lighc wcg!,c af the
3ara4c sa"1cum md floar s:ab, helical ancaars wauid :ikcly hc tyr aap:oanarc (L4aug'n aoc
onty) ;cunCac:on ype.
Campaeaan Grnuung: 3reLy, cnmpacvaa gzauling is z aeans of saproving soil ia place
by pieuure-iajec^on af cemeaaaus ma[?zals. Taese ar_ a aum6C of ce:hniqur_s rhat qualify
39 caapaction grouting. T:ic anpropriue cec.4niqne applied usually u xic-.:ed Sy rhe orouung
waax;ar A fit the :andicons present udic s.te. Cansidcing the 51 ;oils prs=y it is likely
that 2-iuh g,-auni-injcc-.ion holcs would bo madc ia the garage floar an 2• to 3-iooc =nrer,.
TSe g:ouc pipez ar: drivea down througF, thc holcs, and gtcuc injected inro rbo soils. ?he sails
would be uaarnved ro a point whue fiuthu sculemeat of the garege 9oor and the gorage iaelf
would 6e'aeglio7a
Tne :uccess o.f this appmach eawils thac an rzpeaeaced gmudag caaaar.or be sdecud. It u
possibla m"pump' a:argc quantiry of gmat iam the soii mid aat aave aay appt--iable
improvemeat in soil deasity. Fucrha, ic is possible roaII'ect only a partial fix leaving some
pomons af the g:srage or sleb wislsaut aeaeable iatprovcmeat ,4a :cpc,-i=crd caatrac.or
should be able to imorove the fi11 saiLt bauuh the garage withaus impacxing the Bouse Wc
do recnamend rhat success of the eampac:ion g1'auting be tesced in the fu1d. Tnis [esiing c,ss
be done u the wark is undextakea m rz5a; the specing of :ha grauc pipes and m rafine the
parucvlsr eompae:ioa grouc heing pnmped.
Hcl'u! Anehors: Hclical eachocs ean 6¢ screwed iaco the nativa cll soila 6elaW the laosa 511.
Tsa mrque tequired eo set eaeh utcyar is a direa meuuremenc nf aachar oapaciry. For the
gzr:ge, ic is Possible tn laad a 10-12-14 :u:ical anw4or up io aQpr;ximatcly 7 tons (wocicing
5'=54 '4 5: :5;: P.^ce
CEC-04-1558 14:5I
P.0a/08
'Zvrich 1azurAaee Companp
Projocs $ABX•98-764
Novemba 30, 1998
Psgm 3
wpaciry) eaa4. TLus, the oarage and the floor wuld be svy9orted wis6 a reasonabfe amouns
of ana4ors. The eleaeats oi s 30-12-14 enchor uc shown oa thc artached drawing.
Tnc helica! anc'scr; eould be imstalled for suyport oF tha garrga struc:uit only. Fiowrvez, full
suppor: of $he 3aragx aztd Aoot sla6 would likly eataiI removal of che =\stiag s1itb,
instillaton af che helical aachars, and plactsicat of a new siab.
Clasure
I"ais °, are wac ;rmpared a provide r«ammrndatiaas wirS r:gard m suoport of ihe =isnng
gaage. Cur m.comaeudsdans and discnssiaa is, thus, limiud :a ihe aita of dte gsrage. Our
wn:k was 3c»a `er !t:s w^:v;ive jse o: ;n;unnc_ Campany an.d rhe cenicd parties In
thc abseact oi aw writtea apgmval, we make no repr:snadon c,• a:isuue ao ruponsibi]ity m
atl._ par.ies regarding his re..or ''7te .ata analystt md recoma,::i:siions aay nec be
ap:rapr.at. far ot4e: stxuc:ir:s or punasa. S athc portics are ,:o.-i := placing apPiying these
rcr.ammc,daticas ;a othe str:.ctur:s ar au:poses, it is ue::ssari rha: ve Se :oanc.:d.
T'a : ser/icxs nrnded 6y 9raaa :nte^e: wero iane consisreat with a lavd ai ,:are and afcill
ordinaxiiy -x--rsiszd by mcssibers oF the geoxcinieal profes-mzion cacrendy pncticing in chis ,+^°
unde: s:ail;s Sudgc: and time r.;tr..u:1S. No wnrrmry, =prescd cr impiiad, ts made.
SLic:tciy.
?onald A. Shu,T,^.:, P°_
Seainr Engiac:r
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Fix ........... .............. ..4a d0 .Io No. 200
Sd ..-_ ......................... _.._ No. :CO ia .005 mm
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bo+e 5 q 1C 3Pf
mrium dense I i ra 30 8PF
iwnze 3! :0 50 BPF
vary danrA o.y 50 3PF
cer+s:sranry of edkes:.e sa,ik
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Dri?'vrj Nofes
Snnaarv penarencn :e-q coringa.em:C.enmd hy
3 i/d' :r o 1/3' 0 naic?uern ougar wll nafto olMr
.,:e. ;emnq wier ?.o3uxd .o claan aur ouqar orier ro
urneting anry wnen i0Eieatad on wgs. Shnamd 7ereatiaaol,
Nu conngs us dsuqwad by ths preicc':7' ISpIT iubel.
F1,lll,i/ .1Y9af 7Winqf 1RA atlM11CQ fSJ i' of 4' 3iQTORf
eenriwu?v>.lignr. wGaao?n auae.e. :al doyneanmu aad
:RCIO yCiht q'O:Ml/aC R9f1i OiYUlbOC WlIIGe3 OYQlAO b
ihe wrices and uo-tsniore. :anw.nai opmimws. 7ewer
augv 6onny, an aa:ignoroo ay rh? ?ei?'3".
rend ¢ugor Sorings .aro ad.anevd Tanudiy,a ? t/Z'
oiamasr au9sr ane .em ;imiied ta Ihe aeoin nom wnieii the
auyv odd o? rnenua wrhdrsrn. Fand augsr emiogs ma
inmC0Y4 *y!IM Pfs112 .
SaOtpling: M sanoka ?.wre qiun '.:* iks s?endare t 00
:wi/NOa aoaow atecW rnen nomd. rN;ndimMS i'im
-Q1iBO IYnOIaY0") NW sanpin.
OPf: Numben indioM ola.a pr iwr neoeyud in wndard
P numriw kw, aiio ino.m as 'N' ?;oiue. 16 sand*r..m set
;na 4neimur0ed 3dl aelaw iir noi!ol«uem mg,er. CrrMng
ra?iuoneaa rsn ?h.n ounnd for:eeana and ihiro 6'
;naemanis m+d addsd te 7n 9PP. Whars My di7(end
signdicanAr,d? orm rspened ;n iFs ieUfwm: 2/7 2!or
'ho wona and Ihird 6',nenrrunrs. raapruiwly.
WN: W N?'ndicwr /Ae sameiu rnprorod roil undu w+igiv
ei hammsr and rads akne, dei.ing nar nquired.
M!R WQ mawws dr mmda pmunvlod mil undu.vgnr oi
ieds akne; hom1nr vwight *nd drrving mm roNmd
Msa: all inn .wre run ;n gerrlal lacordo?o +nkh aPp%
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INSTANT TESTING COMPANY Ao?
IT ? 4000 BEAU O RU DRIVE
n EAGAN, MI1?INESOTA 55122
(
? ` ? 6i2)a52-1826
?/ rFi EPHONE: (612) 4543544 FAX
July 14, 1888
,loe Hifla
FSB Constructlon
2500 West County Road 42
Suite 9
gumsvitle, MN 55337
Re: 2228 Wall Stre?hge e??9 WQOda 9th Addition
Lat 1, Block 2, P
11oo^_
pear Mr. Hllla: arega
qn ;nspectlcrt was made Juty 1. 1998° ot helinspeet on wasta v ter ry the hsuitabit ?ity of he epair
at the above raferenced slte. The p rPose , arage foundation failed sometime during the Iast
based upon soil conditiona. We understand the• the g
b.vo we a gaf one or two daYse turther understand that the observable distress developed ovar a sha
time sp rocedures which
Before this home was conatructed, a soit pad for the house waa compacted by p
vde?ht wh ch is 22% a cf optlmum ng?ty of relative yieided re}ative soif density in the 95 to 98% renge, Excavation to rebuild the foundation revealed tha
the soils hsd been weakened by hi9h moisturo. A rccant soii action ot the
moisture88%b of. Becastandarduae of Proctar the end a close R'+ P ? °az`T? °af the repaas 1 he ex'ISting structure, recomp re ete
ou electad to plaea a eorrective pad o( eoerse agg 9
?oad to a wider s?il area more
soil woukd have been intruslveahsratmechanism to spfead tha to g low relative density.
below the new toattng. The path such as pradlcied by iha
commensurate with lower bearing etren9 ,,,?gter, related most tlkely, to racert
The high soil moisture appears to be due to an Influx of surfae erns. Norrnall-Y combined aCenSth °f inage hea+ry ralnfall events and incompleta 1e fou dalUons r and wsps can be azpeet
w that in this instance the failure occ e??gd he gef?9g °oodurat on
the buiiding elamente Vnctuding focUnp,
eakened soil erea. Wa suspect ? as from a high wlnd toad a8
overload on the toundation eystem $uour mason creww?an?pfCe??ePlacement footing f ThB ?tew tooting
At the time of the July ii^5Pe°tN°ide b 12 Inch deeA, 3 to 3.5
coursee deep above a 28 inch y waahad ag9repate ?+?ch is 5{eet wlde at? feet below the
of 1.5 Inch diameter. lomm ?ails apProxlmately
is underlain bY a Pad ete pad bearo on the existing sandY
feet thick. The a9gle9
bottom of the garage floor. a satiafactory
The repafrs you heve made Includin9 the corrective aggreQata ped are, in our opinian.
remedy te c°mPenaate tor the weakaned soll conditiona found after the failure.
gincerel
In nt esting Cti Pan ?
??- ?,?..... , t? c ?
Gari E. Anderson, P. E.
Chief Engineer X812 mileage
naer 2 nours
Chargn catlea: 0608 chief engI
- " . -07.....' , <ry. , .... ?(
•?-J[ Cs< C[9 ....
/ CJ r; /?
, r+ .; r: [ [ uG..pa
SEP 14 '98 06:58RM SCHRD 'fRACY SIGNS
P.Si12
Facsimite Transmittal
To: City Administrator, Holly,
Mary, Craig
Campany: Ciry of Eagan
Phone: 681-4600
Fax: 681-4612
From: Dan & Ann Wolbert
Company: 2226 Wall Street Eagan
Phone: (612) 894-2421
Fax: (612) 894-2748
Date: 09/14/98
Pages inciuding thls
cover page: 12
Comments: Engineering Report for the soil conditions at 2226
Wall Street
To the City Admin(strator, Holly, Mary G. and Craig;
Folbwing is the report of the sotl condiGons on our property. Please revlew and call with
comments. We ere lookin8 forwarct to your reaponse on lhis as well as the questions Chat i had
aent in to Holly lest week
Dan & Mn Wolbert
R-99% 612 894 2148 09-14-98 07:23AM P001 A36
SEP 14 198 06:58W1 9CFWD TRFaCY SIGNS
AMERICAN
ENGINEERING
TESTINC, INC,
Seprember 11, 1998
Mr. Dan Wolbert
2226 Wal! Sum
Eagan, MN 55122
1tE: Reporc of Soil Boiing Results
Existing House at 2226 Wali Street
Eagan, MN
AET 02-00693
Dear Mr. WoIbert:
P.2i12
CONSULTANT5
• GEOTECHNICa,L
= MA7ERi.4LS
o ENVIRONMENTAL
This repon presents the resulu of soil borings recently drilled at the refereaced site. T'he work
was done in accordana with our proposal W you dated August 20,1998, which you authorized on
August 23, 1998.
Project Description
The site is your single family resideuce at 2226 wall Street. We understan8 that the house was
constructed during 1997. The house ezperienced significant settlements at the northeast corner
of the attached gaxage.
Tn an attempt w concect the probiem, the builder did some repairs in June of this year. We
understand that the repairs consisted of cxcavating the soils below the footing at the northeast
garage, placing a 3 foot thieY washed aggregate pad, and constnteting a new concrete footing to
bear on the aggegau pad. The depth of the excavation was 7 feet below the garage alab (as
discussed in a]euer by Instant Testing Co. daud 7/14/98). A portion of the gazage floor slab was
also repJaced. We understand that the new garage slah was doweled into the existing slab and
foundation walls at Ehe edges.
Based on the certificate of survey for the property, the garage slab is at Elevation 974.3 R. and
chc bascment floor slab is at Elevavon 966.5 ft. Fagure 1 shows the approximau footpriat of rhe
house and attached gatage. Figure 1 also shows surface eltvadon cvntouis of the site prior [o
grading for the house pad and site.
Results
Two (2) soil baings were drilled on 5epumber 2, 1998 at the locarions shown on Figure 1. Logs
of the soil borings are attached. Details on che driUing and sampling methods, soil classifitadon,
and water level meuurements are given on the aztached sheet enci[led "Exploration/Ciassification
ivletIiods." Information sheets cancemung the USC sysum. descripcive cerminology, and the
'FX AFFlq1AA11V11 /LTION EMPLOYEN'
2102 Un/veralryAve. W. • St. Pauf, MN 16114 = 672-858-9001 > Fax 612•868-1978
OuWtn , Mankam ^ MemAell • Rochester + Waueau
R- 9 gg; 612 894 2148 09-14-98 07:23AM P002 ti34
'SEP 14 '96 06:58RM 9ChAD TRRCY SIGNS
P.3i12
Mt. nan woiberc
3eptembcr 11, 1998
Page 2
symbols used on the boring logs are also attached. Ground surface elevations at the soil borings
were referented tn the garage slab, sssumed to be at Elevation 974.3'.
The soil borings indicate tLat a]ayer of fill ezists at the siu. The thielmess of the fill neaz the
noriheast comec of the gazage (at Bormg 1 located 3% feet from garage wal]) is 14'k Yeet. At
Boring 2, located about 20 feei north of Boriug 1, the fill thiciwss is at least 12 feet thick and
possibly 141fi feet thiclc. --
The fill material is predo 1n YPiy aclayey saad and sandy lean clay maurlal. The eamples of fill
obtained from Boring 1 imcluded some gravel or cobblcs between 3?A to i feet depth iacerval, Tha
Standard Penetratiaa N-values within the fill deposita ac Boring 1 are very low (1 - 3 blows per
foot). This indicates thac the fill was not compactcd dvriag initial pIacement, The N-values at
Boring 2 are higher (9 - 19 blows per foot), indicating good compaction az this location.
The natural soil deposirs below the fill layer Consist of aIluvial and glacial iill deposits. Medium
dense silry sand tlll deposits were encountered directty below the fi4 at Baring 1. At Boring 2,
a layer of Iean clay atIuvium was encounrered betwcen the surficia] fill and the glacial till deposits.
Groundwaur was not encountered in eir,her soil boring.
Conclusions and Recommendations
Tn our opinion, the cause of the excessive settlemeat at the nortbeast corner of the gmcage was due
to compression of the uncompactcd filI uader the footing and garage slab. -"---
At Boring 1, the bouom of the poor fill is at Elevation 959', abwt 15 Ifi feet below the garage
slab. Based on the surface contours shown on Figure 1, it appears that the lower 8 feat of poor__ ?
fill at Boring i ezisud $t the siu prior to recent graCang for the house pad.
The recent construaioa w rtpair the NE corner footing only extended W about elevation 967.3
feet; therefore, thue is an additional8 feet or more of uacompacted fill below thc fooring. In our
opinion, additionaI compression ofthis fill is proba6le. This muld result in exccssive seffiemenu
of the bailding.
The recent consttuCtion did not include any ]ateraI oversizing on the ins9de of the footing (under
the garage slab). This coutd also contn'bute to eicessive settlements of the scrucmre.
Bascd on the information available, pottions of the garege slab may, be supported on 15 feet of
uncompacud fill. If chis fill compresses ia the future, voids could develop below the s13b. This
could result in flimre cracidng of the slab. If the settlements aze significant, it is possible that the
R-99%. 612 894 2748 09-14-98 07:23Ab4 P003 #36
5EP 14 '98 06:59RM SCFpD TRACY SIGNS
Mr. Dan Wolbert
SepEariber 11, 1998
Page 3
P.4i12
voids could be lazge enough that suddon stmctural failure of the slab ia possible under the weight
of a parked vehicle in the garage.
k is possib3e that deposits oP loose fill may also exist under other portions of the strucnue.
Although the grading plan indirates that tbe basement level (elevation 966.5 feet) is below odgiaal
ground surface, there may be pze-eacisdng 5ll in this area simiIar to that found 'm the soil boriags.
Therefore, we recommend that addifloaal soil borings be done to explore for 5ll uadez offier
portions of the strucdire.
We recommend that atabilization of uaCOmpacted b11 areas be done to reduce the potendal for
ftiture ezcessive footing aad slab settlemenu. In our opinion, an excavate aad refi11 procedure
(w4uch was pardally done this summer) is not feasible smce the depth of ezcavauon aad lateral
oversize requirements would .probably require complete removal of the garage strucnure to
impiement.
Tn our opinion, two (2) mcthods are faasble for stabilizauon of the settlement problem: (1)
compaction groucing af the loose fill, and (2) strucuual underpinniag of the foimdations and floor
slab. A brief discussion of both options are given below. To obtaia acnuau cost estimates of
boch opaons, repair contracwrs should be contacted. In addirion, the underpinning option wwid
require desigo work by a sGUCtuxal engineer.
Compaction Grouting
Compaction grouting is a method to densify the loose fill soils below the footings and floor stab.
The compaction grouting tethmque consists of injecang low slump amern gmut into the grownd
under pressure. The grout is injected through steel pipes tbat are inserted into the ground along
the footing edges and belaw the Slab.
Normally, a rypical coniractor's warranty on grouting work is limited. Tf you elect tn use this
method, we recammend obiaining prbposals from one or morc experieuced contractors and also
retain e gcotechnical consultx»t to review the caaaacLOr's work.
Struetural Underpinntng
Another potential repair naethod wonld be to umdetpin the foorings by extending a deep foundation
inba the medium dense glacial tiIl soils at depth. Helical anrlior piles should be suiGabk for the
sitc. To prevent concaued settlement of the floor sIab, underpinning of dhe concrete slab would
also be necessary. Structural support of the floor s]ab would probably roquixc removal of ali or
most of the slab co install a sriffer slab. Au underpinning sotution should be dcsigned by a
suuctural engmeer -
R-99% 612 894 2748 09-14-98 07:23AM P006 lt34
SEP 14 '98 06:59RM 9CHqD TRACY SIGNS
P.Si12
Mr. Dan WOlbert
Septembez 11, 1998
Page 4
Addttional SoU Borings
We recommend that addirioAal soil borings be done to better determinc the lateral and vertical
extent of the uacowpacted ffi1 below the house_
S#andard of Care
Our services for the project have been conducted to those standards eozisidered normaI for services
of this type at this time and location. Other than this, no warraary, either express or impiied, ia
intended.
If you have questions, please call me ai 659-1367.
Sincerely,
???
es C. Rudd, PE
Principal Engineer
Registration # 13996
lteviewed:
f7 • A
7effrey K. Voyca, PE
Vice President
.azmchmenu: Figure 1- Soil Boring Locadoas
Logs of Soil Borings
Fxplontion/Classification Metltods
Boring Log Noxs
C7assification of Soils for Engineering Purposes
C3eneral Terminology Nous
R-98% 612 894 2748 09-14-96 07:23AM P005 fi34
SEP 14 '98 06:59RM SL'HRD TRRCY SIGNS
i?
?
Jj
?
,
?
5?
. ?
? ? -- \
AIKERICAN PROJECT EXISTIING HOUSE AT 2226 wALL STREET
Fagan, Mitmesota
fiNCINEEI2WG
rESrcxc, nvC. suanECr Ohginai Topography and
Soit Boring Locations
SCALE DR?,WN BY CHECKED BY
1"=30 ft. JCR -
AE'C d08 NO,
DATE
09/11/98
1
/
7 I , \ C
?
00 I W
P.6/12
`
}
? ?.
?i ? _. rn .` ?r / '?,.???
?J
R-98% 612 894 2748 09-14-98 01:23AM P006 SS34
SEP 14 '98 07:00RM 9CHRD TRAC1' SIGNS
AVERIGAN
1 ENGIIQBBRINQ
? TSSTING, INC.
SUBSURFACE BORIlVG LOG
P.7i12
ASf JOH N0: 02-DO693 LDG OF BORINO NO. 1(D. 1 OY 1)
rsoTEcr: 2226 Wall 5'treet; Ea$en, MN -
D INTH SURFwC6 ECEVATION973.6 GEOLOGY N MC S?F
lYPE 1lEC.
tFr FlP.I.D dc IABOBATORY 1TS7
FEET MASHRIAL DFSCR87l?t wc nsrr u. ?[, ss-zao
? 2 M SS 6
2
g 3 M SS 6
FiII, mostly c1a9eY ssnd with a litfle gavel
aad m'lry smd, a few eobbles from iboat 3,5'
4
ro 5', brown and duk hrown
5 2 M $S 4
6 FII,L
7
2.3 M SS 2
8
9
1D
1 M SS 6
11
Bill, miuiae of lean elay and sandy lean Gay
12 with a litde gravel, a frw aaces of organic
macerial, browa I12 M SS 2
13
ia
ls 16 M SS 18
lfi
51ty sand avith a llale geavd, hrown, mois., TII.L
17 medium dense, a few layecs oP sandy leau
clay belaw abaut ?A' (24)
16 30 M SS 18
19
20 19 M SS 16
2?
ENm oF so G
DEPIFi: DR[I.l.IN6 METHOD wwrEx r.EVE. aEA svTS?ceN rs No.rE: ROMR ro
0-10' 3.1 "
'DATf
TIME SnMPLfa
DEPfH CnS[vC
DEPSH CnV&IIa
DEPTIi D
FL WAlER
ygyg?,
THE A1TACfffD
9/2/98 1:10 21.5 20.0 21.5 N'oae SHEM FOaaN
9/2/98 1:25 21.0 20.0 213 None EXPLANAT1oN oF
BORlNG 9/2198 TfRMINOtocY oN
cc: GL cn: BL ais: 3
SHGS tAG
.U90
R-98% 612 894 2746 09-14-98 07:23AM P007 fi34
S P 14 198 07:00RM SCHAD TRRCY SIGNS
AMMIC1alN
ENGINE&RING
TFSTING, INC.
SUBSMACE BORTNG LOG
P.8i12
esr toe rro: 0_2r00693 i.oc CF soxINC; rro. 2(p. 1 of 1)
rmorecr: 2226 Wall Streec: Eaaan, MN
Dpp St1RFACE II.EVwT[ON. "2•8 CT'Y N MC ?Z'E W.
? ??' ?O ?TORY 1pS1'
? NAiERTALDESGRIP2'fON ?E ' WC DfN IY PL R•200
I 13 M SS 14
Fil1, mosfly c}eyey Ssad vrith a liule gravct,
2 kaas of euyaaic mamisl, Sxsy
3 15 M SS 14
4
S FfLL 19 M $5 12
6 Fill, mosdy tldyey Seud with a liede gnvd
and sllry sand, s icw uaas of oc8uuc
7 material, bmwn and btowm.sh 3'DmY
18 M SS 12
8
9
io g M 55 18
i?
iz
Lean clay, dark gcayish brown ro browmsh ? 13 M SS 20
gray, sfiff a piace of wood at about 12' (Q.) u
(may be fiIl) OR ?
14
Is
Ixan uay, grayish trown, medium (cL) ? M SS la
?
16 I ALLLWILTU
17
12 M SS 16
1s SUry smd with s liCle gcavel, a few eobbles
below about 20', bmwn, mnist, medium .' ? TII.L
?q titnse, a few leoses of sand (ShA
? 3D M SS 4
Z? END OF BORifICr
DEYfH: D&IISJ}PGMEIHOD p'ATUt «LMEkSUREUM M NOTE: REFt7tT0
, ,
a19.s 3.2s asn DATE TI?IE SAO?
o?rtc CA57NG CA?
n?rx D rD? WATER .?.?A.?prucn
912/98 2:35 21.0 19.5 20.3 ' Nane ?fiEts FoR M+
DCPUNAT[ON OF
kUNG . 9/2/98 I TERMINOIAGY ON
cc: GL cA: 8L xt : 3
TIIIS LOG
4190
R-98%' 612 894 2748 09-14-98 01:23AM P008 934
'SEP 14 198 07: 00AM SCFIAD TRRCY SIGNS P.9i12
ERPLORA'1'(pN/CI,A,SS[P(CA7iON 3lF,THODS
Cr?n+nlln Me{ <
Sp1ft-S2wan Sempia (M
Stsndsrd peaeaarion (spllt-spoon) samPks were mUecsd'm geae[al accardanee with?,STM:D1586. This mMiod
eocsista of driving a 2' O.D. spli[ bmne] s=pter iEto du fo-sim soIl wiiL a 140-pound tilmmer dropped from a hefgh[
of 30'. T3e sampler u drivea a wW of 18' fizo du wii. ARer an hiicai sA of 6', du mmnba oL hammer blows
to dzive the ssmpler die fma112' b]mown as dhe s?derd peaecation cesisance or N-value.
Distmted Ssmp)e4 W
Sampie rypes ducribed as •DS' m the boriag loge ere disterted samples, which m raloen from the Plipha of the
anger. Because tBe mger dismrbs the umples, possible soil layaine and eoaram depths should be caavdered
aPPmximau.
SampRng Lfmftadons
Uatesi aamally obsaved in s sample, mntacu betoueea sml layea aee aumared bued on rhe specing of ssmples and
dhe accion of drilling mois. CobWas, bonldeia, wd oncer large objeers Yenerally eaoaoc be recovered from test
borfngs, and diey may be prestm: ta uu gramd evm if thry m = noaed on the boring logs_
Classification Motbede
Soil ciassificazioes showp on the bprfag In3s art besed ou the UniHod Soil dass'ificaaoa (USC) system. Tbe USC
sys[em is desenbed in ASTM:D2487 end A7488. Wham lubonury etassiiiacioa tems (sieve analysis or Acurberg
Limifs) Lava beea petf0imed, ucuiam cInedAndme X ASTM:D7487 ue possible. Ot6erwfst, SOii Clascificadnne
shovm on the bacmg logs aze visual•maausl judgmeau. CLam ue acached which provide informadea on the USC
syrtem, the desczip[ive oetmmology, and the rymbols used on the boriog lvgs.
Tbe bocing lo;s lmclvQe deseripcans of spyetsec geology. TLe;eologic deposidonal migm of each soil layer it
inrerproud primarlly by obsocvarion af che sofl samples, wblch eaa be limloed. Observadoas of the svrroundtng
wPopPhY, vcgeqttion, aod develnpmen[ can sametiaaes aid this jadgment.
Water Level Measvreme a
The ground wamr level meaauremass ue shoan u the boacm of the 6oring logs. The followa3g informadon appem
aader 'WUer Levd Mcestuemenn' ca the logs:
• Date aod Time of ineasu¢r,mmt
• Sampled Depth: taven depd at md ampiiot ae the dme of mawemwc
• Casing Depth: depm m bomm d wiog or boilow.mm uKx at dme at meuurmem
• CdvC-m DEpih: dePdi u wEirb mnoum; npe rtops m the yprelple
• Wuer Level: atpth in Ae mmme rme ba ..er b rnewiscrod
• Dc91inY FIoId L.evel: wme u wuer I.e.d, ana mu te iqW iu me uwdiok L mwep me[a
The aue loadon of du svuer roble at the boriu8 bmioas maY be tiftecau rhaa the wuet leveh meanaM in rhe
borcholes. lbis is possible bccawe drae are sevaal maors am nn affea the wuer level masnxmemu m the
boreholo. Some of rhrse Eacmrs faciude: pamnblliry of mcL oosl !ayer !n profile. presmee of pecched avater,
smouet oY etme betaem warcr level teadinga, pteseoce o[ dnllmg 8oid, weorher eoadtdoas, aad yce of borehole
easing.
Gmnle Stnrage
(Jnless mdIIed [o do ocLeivrise. we roudady reuua repmsenmtxve sampiea of the wiLs cecovered ttom the boriags
for a period of 30 d.rys.
Al4iERICA0Y ENGIri'EERING TFSTIING, INC.
R-98%612 894 2148 09-14-98 07:23nM P009 434
SEP 14 198 07:01RM SCHAD TRHCY SIQVS P.10i12
HORING IAG NOTES
Symbol
DefiniOtan - -S1 ots
&ymhd Detinttfnu
BAN: Size ad fmsbyomt easm8 ODNS: Onrdimeosional wesoIidadon rcst •
BX: BX doabk tnbe wee Daixel DEN: Di'Y denshy. Pd
AC: At compledoa of boriqg DST: Dpect sheat tCH
CA: CICW aefinenr E. ptCSsU1Cm60G[ MOQUlUS
fdf
cAS: Pipe casins, mimber mdicaus nom5ua ,
xm: xraromezr aailyw
dlameter m mcbes ' LL: Ilqnid limit, %
CC: Crew chief I3: Pressaremcrar Limit Pteseun, nP
COT: Qean-cuc 4ibe PIIRIvi: CoefSciaas of pnmeqbffity (K) aesk F- Field;
DC: Drive Ming; number inNeates dtamemr !n Inehea L- I,aborauxy
DM: Drllmg mud or peatopite dnsry ' PL: Plazdc limit, R,
DS: ; Pistarbed ssmple $om aagez 9i013 q PaeYet yenevometet t¢cn8?, af
°
FA: Flighi ?er; namber Sndicatea aucside g: Stacc caoe beariag presrm, uf
dlameror in Ixhea q,,: Unconfined eomPreuh'e samSt, pgf
HA: Hsad auga; aumber iadica[es oarsida diamr?er R: Eleetrieal resistiviry. ohm-cros
HSA: Hollow-stem aager; aumbec lndicaza 3aside RQD: Rotlc Qualiry Des9gmtor in percen[ (eggregate
diameter j¢ inchp leagth of eore pieees 4' or moxe in leng[h as a
JW: Jectiag watec perxat of mtaI eore nm)
MC: Columa used m desrnbe moiawie cond4tioa of SA: Sieve analysis
sataples sad for the goued water lavel symbol TRX: TrleziN cumprnapn tesc
N(BFP): Standard peneQarion nsisroace (N-valne) in VS: Vaae shear atrengrL (8eld), psf
hlows per foot (see notes) WC: Waur eonteat, u pe:ceat ef dry weight
NQ: NQ witeliee core band 9i-200: Perant of mateaal fiaer tLaa #200 sleve
PQ: PQ wireline core barrel
RD: Rocary drMiug with Iluid and roller or drag bit
REC: In:plit-spoon (xz aotes) aad thin-wailed mbe
saznpling, the recwaed imgth ('m toches) of '!he s[andard pmeaetian tac eonsiaa of drtving the sempler
sampie. Ia rock coriag, the lengih of ern wlch a 140-ponnd hammer and counting the aumbar of blows
recovered (expmsrd as percent of du total applied 3n eacn of three 6" iaeremeats of peaetradoa. If the
coro run). Zem mdicaus no sample [ecovaed. csmpler u driven Iess 92a IS' (usvally in highty msisGwt
REV: Revert drilling IInfd mawial), pemtiaed "m ASTM;D1586, du blowa for each
SS: Samdud sptit-spoon sampler (ual; 1%' is eomplero 6' inaemene and tor each gas4al muemeat is
iasiGe diametn: 2' oacside dLmaer); mless on the boring log. For pudal incrameau, the number of
ladicated otLenvlse blowa is aLown w the nearett cemh of a foot below the alash.
TR+: YLirrwa[ted mbe; mzmber fodicateo 6tdde
dismetu ia blehea me lmgth of sample seeovered, as slwwu on the 'RFC"
WASH- Sample of mate:ial oMamed by acraain; colamn, may be grester rLan tve dispnce iodica[ed in the
recuming mtary dxillmy 8uid or by wh;eh N eohmw. 'Ibe diapaziry a because the N-value is recorded
has wlltcoed imide the borehde after below t5e idtlal 6• uc (uafess pazda] peneaatioa defiaed
"fsAing" thtough dn7lia; flaid in AS'[M:D1586 v eamtnteced) whereas tLe lmgrh af sample
wAT: Wacc raovena is tvr die emitc sampier drive (which may even
WH: Sampler advaneed by static weight of chll auend more than 18•).
md and 140-pound 6ammer
WR: Sampler advanced by static weight of drill ral
94 mm: 94 millssnecer wireline core barM
_: Wa[cr level Inaica[ea in baring
,L4fERiCpN ENGINEERLNG TESMG, INC.
R-99% 612 894 2748 09-14-98 07:23AM P010 #34
,. SEP 14 '98 07:01RM SCHRD TRRCY SIGNS
I CLASSIFICATfON OF SOILS FOR EVG1N MAING PURFOScS ?AyyIMC.4iY F,NCr
ASTM Oes3grtadon: D 2a87 ?iG
(Ea-?ed on Unified Sod Ctassifipdort Syatem) T?T?G2 INC.
0a m m?van
GvIft br AaFinq W Wo .4Mok W,a dno PeTq Upn9 LMNOMY %elt' Goll m
Sy910a1 Gm1° ?J
CawsfGHmw 9od0 9raws QM RwyNC Q1?4 antl 13C:? 6w Wm
?? ??r
?lon rl?v? SOW nuM ar1 IMA ws SON maqe la mn Q?Y istT
Na 7D0 f?w? 4eeei rlta'rwa P? C.r?? saWOr taGvf 89 Amry .gsa?p 9tav?r
IL t a??
60111011will wim r.m tImI =wry fe UL a xnt aM Saty FE+"
ila. ire +aw mq'
Pfeq elamy?s C. a CM RC Q" praraeaN
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612 894 2768 09-14-98 07:23AM P011
SEP 14 199 07:02RM SCFWD TRRCY SIGNS
P.12i12
GENERAL TERMIlHOLOGY NOTFS FOR
50IL IDENTIFICATiON AND DFSCRIPTION
G1AI
Tqm N S=
AMM GR?VEi PERCENfAGPa
Percmt
Bouldecs Ovrr 12' ALIale G[avd 396-15%
Cobbles 3' to 12' Wlrh Giavd 13%-309G
Gnvd #4 sieve [0 3' GraveIIy 30%-50R
Smd /1A0 to 94 aieve
Fiaea (ailt & elay) Pass S'200 aew
LONS LSTENCY OF PLA. __ SOII.4 RELATIVE DENyqTY OF NON•PLAS77C SOCLS
1= N•Velue_ BPF T= .
Vay Soft !w thaa 2 Very Loose p..q
Soft 2-4 Looae 5-10
Medium S-S Medium Dease I1•30
Stiff 9-15 Dwx 31-50
Very Saif 16-30 Vay Deoae Greater thaa 30
Hazd Gceacer than 30
MOIS j'fIRE1FRUST CONDTl'ION x,_A_YERIIVG NOT&S
adC Colman}
Laminetiom: Layen less than W thick of differiag
D(D71'), Ahseece of m0isatre, dusry, dry ta materisl or color
tourh. '
M(Moist): Aamp, althwgh free water aot viatble. Iswes: Pockeu or leyen greaza tean K• thiek
Soll may ault have a higa wa[er eon[ent of diffexing materiat or color
(ova "opcmuw').
w cwetr
' WazecbearingJ: Fiee wza v}slble. Imended w describe
non-pleacC eoiU.
F (Frozen): Soil ftozen. '
FIB EIt CONTETiT OF PEAT pRGANIC DESC
I?] F;bei C.oneegt (Visual Esrimate) Non-peat solla sxe desarlbM ee organic, if soil is jndged
w have suflcient organic oonteat m influwce ihe soil
FIbric: (}[eaoer tbea 67'X, pnopeniq_
Herniz: 33-67 96
Sapric: Less thau 33%
l Ull(aiy ) .ti ENGINbMUNG STING, .
R-98% 612 894 2148 09-14-98 07:23AM P012 St36