HomeMy WebLinkAboutPermit Building 2003-3-18
Mar-18-2003 01:41pm From-K & A Eniineerina, Int,
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March 18, 2003
Fax
To: Bob Barnhart - City of Springfield
Fax: 726-3676
Su~Iect; Geotech report for 3346 Falcon Dr.
+541-684-9358'
T-134 P,OOI/006 F-209
K " A Engineering, Inc.
P.O. Box 23&24, Eugene, OR 97402
521 MIII'ket St., Suite B, EugBrle, OR 97402
(541) 684-9399 Voice
(541) 684-9368 FAX
From: ' Michael Rambo/eft. P.E.
Pages: 6
Date: al1812003
Bob
Attached Is a copy of our geotechnlcalavaluatlon report for3346 FaJcon Dr, (River Valley Builders - Greg Larkin).
Please call if you have any questions. .
,~
.
Michael Remboldt. P.E.
K & A Engineeiing, Inc.
Mar-18-2003 01 :4lpm From-K & A Enaineerini, Int.
+541-684-9358
T-134 P,002/006 F-209
Commuriity Services Diy, Building Sufely
CITY OF SPRINGFIELD, OREGON
225 5lh Street, Springfield. OR 97477 Ph, 726~3759
lob Address..JJ.1p Fa 1 con Dr.
City Job' com-2003-00135
AMBLESIDE MEADOWS SUBDIVISION--lST ADDITION
Site Investigation Questionnaire for Consulting/ Design Professionals
foundation requirements - new structures on residentia110ts
This form may be used as a temporary verification to.J]ow CoDstruction to continue
on the job site until the consultant's stamped afftdaVif9D the site soli compaction
and stabilization Is submitted to the City. This form mUst be completed by a '
licensed design professional (engtneer or architect) or hislber authorized employee,
and submitted to the building Inspector prior to requesting City inspections or
placing foundation con,....ll;LJ.lt is important that aU questions be answered
..",i,.",..iletely.for tbe foundation site to be approved for construction.
Owner and/or Contractor ____!U..\IO.. \I~" ..~' Run tf..",,,.
1. Date of the design professional's site evaluation? 3/14/2Q03
2. Has the design professional reviewed a cOpy of the geotechnical Information
for the subdivision that was provided with the building permit? YesXXNo_
If not, please contact this office for a copy of the repon. The design professional
must be familiar with the geotechnical information before completing this form.
3. What was the sJ.ze and depth of the excavation and lor IJD? .
t:'v~l'Vl'lHnn w~c:: a~y 4nl It 451 not includinn dri've.wav
~~pth of excavaUon was aPPro)C. 1.5 to 2.51
Pi 11 in foundation area oye.r excavated area consis'ted of Q" coars'e,
crushe,d rock. {)J" 1
Was existing non-structural fill or expansive soil encountered on the lot?
Yesxx No:":;' If "yes", what types, depths and locations? ..
T"'''Ill'\tir.lil'.''nunrl"ti nn aY'ea was (,nvered with aooroximatelv 1.51 to
2.51 of construction debris mixed with organic topsoil
A it;.., tan. hi~~-rl~t~~ (~n~ ';~~ly,to h~VA ~ h~h~i~we1l
pnhnti~') clav was fn\m~ ",ool"t'ximately l-ft. below the foundati,on
elevation. Th,is was verified in 3 test pits.
What measures were taken to remedy the soil condition (include type of
engineered fill used to stabilize the soil)? All .fi 11 was removea e,ntfre,1y, a 6"
1 ayer of coarSe crushed rock was p1 aced in the fotln.datlol') a~e,a .to
prov' ae a cons, stent s t, ~ case Tor construe\: 1 on or roulI<.J(i':; I vnS'",
1
Mar-18-2003 01 :41pm From-K & A Engineering, Inc.
+541-684-9358
T-134 P,003/006 F-209
Community ServiCBs Div, Building SafelY
CITY OFnSPRINGFIELD, OREGON
225 SUl Slreet, Sprjntlti~ld. OR 97477 Ph. 726-3759
Job Addres/l 3346 Fa 1 Gg(l Or I
City Iobf CQH...2.QQ3~Qa.lJ5. '
"\
p~rfn"i!lt",r1 r1l""ine; ""...'" nl;qrFlrl in III tr''''n~h Ilr'QJlnrl tnto nl'l"'t~...c+-.
and east sides of the excavation. and the trenches were filled with
coarse drain !'or:k. These drains daylight to the street-side .of the
structure. Ine trencnes anaplpe extenCl approxl:matelY 11::" oelow
t.nl:: l::leVatlOIl OT l.l'1e to!) OT I.IIl:: CrusneQ rO(;K pau.
Is the site as prepared adequate Iil inadequate 0 to nulintain constant moisture
content in the sub grade? Note: Verification a/moisture stabilization in the sub
grade is a requirement of the geotechnical report, and must be affirmed before
construction can continue.
If inadequate, what measures are needed to provide constant moisture content in
the sub grade?
-fiOTe t1,~ L H,~ ibd dtptl; z.f ~he " !} ..Hll,' .:.~;:e:t te "Hr.:.' ~JAMe
~'~S PQrim8t8~ dral~: ~k~yld keep ~~.r+urQ-contiRt ~~ +hi-~l'~/_____
~t;ll"'t:>
Is the site as ro.,;,.!'ared adequate g inadequa(t 0 to suppon the }'....t-...sed .
structure? An affirmative answer is requisite to proceeding with construction.
It inadequate, what additional work Is needed to provide adequate
foundation support?
4. Did the design. professional witness pla.~I...'J..ent and wmpaction of the
engineered nn, or Is there a speetal inspectloD report forthcoming from a
qualified agency? I witnessed Placement Ia Speciallnsp/compaction report 0
5. The design professional intends to use the renowlng method for installation
of perfo~ted perimeter footing drains:
The design on the attached drawing provided by the design professional ...... 0
The method shown on the original constnlction drawings. ... ......... . .., . .. ..... 0
The.typical "Foundation Drain' drawing attached to permit ..................... 0
Perforated perimetetdrains are not required ... .............................. ...... 0
COmInents:perimeter drains as described above were installed and are.
adequate to p!'ov1de- drainage: . , ,,-
Note: City inspectors will inspect installed drains prior to cover upon request...
Call: 726-3769 to schedule inspection.
2
Mar-18-2003 01 :42pm From-K & A En.ineerina, Int,
+541-684,.9358
T-134 P.004/006 F-209
Community Servi~c$ Div, Building SafelY
CITY OF SPRINGFIELD. OREGON
225 51b Stroct, Springfield, OR 97477 Ph. 726-3759
Job Addresp46 Falcon Dr.
City lob 41 l.U!"I-~UUJ-UU I J:>
Low-point crawl space drains are required to prevent the buDd-up of excess
moisture inside the foundations during (and after) construction. This drain
may be installed after foundaUon pia.. ,~, ",nall onlv with the e"'M & 1...\.' Dp.rmlssfoD
of the desillp ,Drofesslom .
'a. The design professional has determined the following:
The crawl space drain is required when the foundation is installed..... 0
The low-point drain can be installed after 10uMmion placement wirhout a
significant moisture build-up problem within the foundation............. 0
(The low-point drain may be installed at the framing . stage
of construction) port & beam.lf'Grmn,. roofiRR. ~'c. .
b. Has the design professional observed and approved the installation of the
required low point drain?........:.... ...................." Yes, NoXL-
if "yes", where is the low point drain located under lh~ building and
where does it 'terminate at this time? (must be an approved location, i.e.
street gutter, storm sewer, sump pump and discharge line to the street,
etc;)
The design professional must determine whether the approved permit drawings have
adequate foundation steel. Is any additional foundation steel required that is not
shown on the toundation drawings tor the building?
Yes No ."'..~ . lJ,"yes", describe additional steel required (or provide drawing).
The following statement must be signed by the individual doing the observations and
providing direction for the excavation and site preparation work on the property.
3
Mar-18-2003 '01 :42pm From-K & A Eniineerina, Inc.
+541-684-9358
T-134 P.005/006 F-209
~
Community Services Di.... Building SafelY
CITY OF SPRINGFIELD, OREGON
225 Sr~ SLrCCI. Springlicld. OR 97477 Ph. 726-3759
JobAddtess 3346 Falcon Dr.
City Job # COM-2003-00l35
The undersigned design professional (or Illllhorlzed empltJ,ee) attests.that helshe
observed required molstwe stabilily procedures on this site, tmd thst such procedures
were tlCcomplished before till} chllnges occurred In the moisture content 01 the sub.
gnule under and around the building (where expllnswe soils were encountered). The
u1UU1'8igned further attests that the sub-grade, tIS preptJred, is tuhflllJle to support the
building proposed for this site. '
Additional comments:
(Note): A copy of this report shall be kept on site with the approved plans at all
times.
This report shall be followed by an affidavit, signed and stamped by the design
professional under whose auspices this report was completed, affirming the information
herein. The signedlstainped affidavit together with a copy of this report shall be
sllbmitted to ,this office prior to requesting framing inspection for the building.
Signature~~"""',
Name r1i chae 1 P.embillt
Company K & A Engineerinq.
Phone 684-9399
.::.'-....,.,..
Titleprpdrlpnt
Inc.
Licensee ~1i dIU' ~~!"~~1 ~~
License #.J..94,U
expires -12/31 /200~
The geotechnical report for the Ambleside Meadows - 1St Addition Subdivision
reconunends immediate moisture stabilization of exposed expansive sub-grades, and that
expansive soils be over-excavated and replaced with at least 12 inches of fill compacted
to at least 95% of ASTM 0698 for foundation preparation. The report also recommends
that measures be taken to prevent water from collecting in or around the foundation areas
during and after the construction process, and that positive site drainage be provided to
reduce the infiltration of surface water into the expansive soils.
The geotechnical ~ "l"..rt further emphasizes that the finish grade of landscape soil
adjacent to the foundation should be at least 24" above the expansive bearing soils, tir.m.II
compacted to reduce the infiltration of water at the surface. The adequacy of fill soil
material' around the building must be verified to the satisfaction of the design
professional.
4
Mar-18-2003 01 :42pm From-K , A Enlineerinl, Inc.
+541-684-9358
T-134 P,006/006 F-209
..'
Community Services Div, Building Safety
CITY OF SPRINGFIELD, OREGON
22:'i :'i1b Slrcet, Springfield. OR 97477 Ph. 726-3759
Sob Addre~!1 3346 Fl!.l con nr.
City lob # COM-2003-001,35
Affidavit
For Site Investigation Questionnaire
Foundation Sub-Grade Approval for
Residential Building Site in AmblesideMeadows - 1 st Ad<:lition
Subdivision
The undersigned hereby affinns that the excavation, structural fill and moisture
stabilization methods for the building site at the address shown above was observed by
me or an authorized employee of my fmn and that the following is tnJe:
1. The foundation'sub-grade is capable of supporting a minimum of 1500 psf, and is
adequate to support the building 1:'4 ~!"Jsed for this site.
2. The moisture content of the excavation was adequately maintained during the site
preparation process and was adequately covered to stabilized moisture content
prior to any significant change in moisture content of t~e sub-grade.
3. The site is adequately graded and drained to prevent the collection of water i,n the
excavated area during construction.
4. The accompanying report titled "Sire Investigation Questionnaire for Consulting
Design Professionals" containing field observations and insttuctions made on
3/14/2003 (date) for the building site was Completed either by
myself or by an employee of my finn under my supervision. To the best of my
knowledge, the information contained in that report is complete and accurate.
Name of Licensed Professional (print) Mj ch~p' R~ml\n' r1t I P I='
signa~ ~:c..\ _ "f<
Date 3119/2003