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Home My WebLink AboutPermit Building 2003-8-11 AUI-l1-Z003 10:Z4am From-K & A Enlineerinl, Inc, \' -a engln..rlng Augusl11, 2003 Fax To: Bob Barnhart City Of Springfield 726-3367 Fax: Subject Geotech. report:.22993~ St. +541-684-9358 T-Z56 P,OOI/006 F-908 , K & A Engineering, loc. P.O. 80123624. Eugene. OR 81402 , 621 Marfc81 St., SUite I, Eugene, OR '1402 , (641) 684-9399 Voice (641) 684-9368 FAX From: Michael Remboldt, P.E. Pages: 6 DaI8: 8/1112003 Attached is the geotechnical report for the River Valley Builders Inc. project at 3452 Ambleslde. Please call "you have any questions. ~. Michael Remboldt, P.E. K & A Engineering, Inc. Aua-!!-Z003 ,!O:Z4am From-K , A Enaineerina. Int, +541-684-9358 T-Z56 P,OOZ/006 F-908 Community Servicc~ Div. Building SafelY CITY OF SPRINGFIELD, OREGON 225 5dl Street, Springfield. OR 97477 Ph. 726-3759 Job Address 3452 AQlbh.~; ci~Ar City Job # cor, 2QQ3~QQ584 , , 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 .now construction to conUnue on the Job site until the consultant's stamped aftidavilgn the site soDoompaction and stabUlzatlon Is submitted to the City. This f,.:...I, mbst be completed by a licensed daign professional (engineer or architect) or bJsIber authorized employee, and submitted to the building inspedor prior to requesting City inspections or placing foundation concrete. It is important that all questions be answered completely for the foundation site lobe approved for construction. . Owner and/or Contractor Ri vel" Valley Bui 1 ders D In.c. 1. Date of the design professional's site evaluation? _ 7/23/03 2. Bas the design professional reviewed a copy of the geotechnkaJ Infonnation for the subdivision that was provided with the building permit? YesXx No_ If not, please contact this office for a copy of the report. The design professional must be familiar with the geotechnical information before completing thisfom&. 3. Wbat w~ the size and depth of the !XcavadoD and lor fill? Excavation was ",,':Iorox. 401 ~ 451 nnt "'e'lI(ling ~r1\'Iii\"i1-Y i\~t8"'S Depth of excavation ranQed from ;.0 to 2.0-fpPt . Was existing non-stnlCtural fill or expansive soil encountered on the lot? YesDNo, If"yes", what types, depths and locations? '!.b.AI'"P "'~Q armrox. 1.1Tto 2.0-feet of'loose construct~on debr1s coverina the ground includ1n!1 wood.vmaterial. SaLle., 1I-.ul''''I'~q.th +~i.-~~\i~:f:~ jel9rh eel'lshhdof YClj J",",:>C; ....vl/lfJacted ' COAr5'P. crushed . QUit!'''}' t'n':,lr +... " tf~pth ~f irJ1'.r'ii~' 4 ~, q feet. Our unde.~s'tand' nn i s' th~t t,ni ~ lA/as plH~pci cilJI'"i n~ "l'\nstrllcH O~ Q.f tl:le subdi'vh'ron. What measures were<takcn to remedy the soil condition (include type of engineered fill used to stabilize the soil)? ---..Th~ IJMllihhh t:'Or:)itrll,,:,H ':'!:l-4ebri s was removed. 1 Aua-ll-Z003 IO:Z4am From-K & A Enaineerina, Inc, +541-684-9358 T-Z56 P,003/006 F-908 Community Service" Div, Building Snfety CITY OF SPRINGFIELD, OREGON 225 5'h Slrc~t, Springfield. OR 97477 Ph,726-3759 Job Address 3452 Ambo 1 es; de Dr. City Job tOM.. 2003-0058L1 TI'H:l qll"....~/..mrlt haC:Q'I>U'C: 'j:lv~l~d i'lnl'i 'l....tb.i.r Jift of dQnc:r-91"'~ ~rushed aooreoate (3 to 4-inches in thitkne~s) was pl~ced over the foundation area and compacted. Is the site as prepared adequate 1iI inadequate 0 to maintain constant moisture content in the sub grade? Note: Verification of moisture stabilization in the sUb grade is a requirement of the geotechnical report, and must be affirmed before construction can continue. If inadequate. what measu.res are needed to provide constant moisture content in the sub grade? Is the site as prepared adequate (!I inadequate 0 to support the proposed structure? An affirmative answer is requisite to proceeding with construction. If Inadequate, what additional work is needed to provide adequate foundation support? 4. Did the design professional witness placement and OOmpactiOD of the engineered fill, oris there a speclal inspection report forthcoming from a qualified agency? I witnessed Plac~ment 0 Special/rasp/compaction report CJ Our understanding is that compactf6n records are in exHtance at the City. s. The designprofesslonallDtends to use the following method for installation of perforated perimeter tooting drains: The design on the attached drawing provided by the design professional ...... 0 The metbod shown on the original construction drawings................ ......... 0 The typical 'Foundation Drain 'drawing attached to permit ..................... ~ Perforated perimeter drains are not required ........................ ............... 0 " COJlPlIlCnts: Note: City inspectors will inspect installed drains prior to cOVer upon request... Call: 726.3769 to schedule inspection. "/ 2 Aua-1l-2003 ,10:25am From-K & A Eniineerina. Inc, +541-684-9358 T-256 P,004/006 F-908 Community Servictls Di\!, Building Safely CITY OF SPRINGFIELD, OREGON 225 SIll Slrce::t, Springfield, OR 97477 Ph. 726-3759 Job AddresC! 3452 Ambl esi de Dr. City Job # ~M 1'003-005:84 Low-point crawl space dra!ns are required to prevent the build-up of ex~ moisture InsIde the foundadons during (and after) construction. This draIn may be Installed IfW: foundation pia..,"," ",ent onlv wi,th the emress 11...~ of the desin Drofessional. a. The design professional has determined the following: The crawl space drain is required when thefoUJIdation is installed..... 0 The low-point drain can be installed after foWldation placement without a significant moisture build-up problem within the foundation... .......... ~ (The,low-potnt drain may be installed at the fram1 ng _stage of construction) pos/4 HQ""JI'QmIIIl. fOOfing. etc. b. Has the design professional observed and approved the installation of the required low point drain?................................... Yes, No,~ if "yes", where is the low point drain located under the 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 pennit drawings have adequate foundation steel. 'Is any additional foundation steel required that Is not shown on the fOlPldation drawings for the buUdlng? Yes No...u.... If "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 AUi-11-2003 IO:25am From-K & A Eniineerini, Jne, Community Scrvicell Div, Building SafelY CITY OF SPRINGFIELD, OREGON 225 jlh Slrccl, Springfield, OR 97477 Ph. 726.:nS9 +541-684-9358 T-256 P,005/D06 F-9D8 Job Addresi452 Ambles; de Dr. City Job f t'Q~1 2003" Q(l~el! The undersigned design professional (or authorized employee) attests that he/she obsened required moisture stability procedures on this site, and /hili such procedures were accompUshed before any changes occurred in the moisture content oflhe sub. , grade under and around the building (where uptmSive soils were encollnured). The undersigned further attests that the sub-lllYUk, as preptlt'ed, Is adequate to support the but/Jlin, proposed/or this site. Additional eommenu: (Note): A topy of this report shall be kept on site with the approved plans at aU 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 signed/stamped affidavit together with a copy of this report shall be submitted to,this office prior to requesting framing inspection for the building. Sl&natu~,-"", ~~. ~ Namne M;~' Rpmboldt- P.E. COmpaDV K & A EnaineeriOQ. Phone (~41) ~~4-Q~QQ Inc. Licensee Michael ,Remboldt, P.E. License - '9474 . - Tlde,Pr1nciole Eti9ineer Il/311i!UU4 expires The geotechnical repon for the Ambleside Meadows - 1 Sf Addition Subdivision recommends 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 flvAll 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 report further emphasizes that the fInish grade of landscape soil adjacent to the foundation should be at least 24" above dle expansive bearing soils, firmlv comnacte4 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 AUIJ-l1-Z003 10:Z5am From-K & A Enlinf:lf:lrini, Int, +541-684-9358 T-Z56 P,006/006 F-908 Communily Services Div, Building Sat~ty CITY OF SPRINGFIELD, OREGON 22,S S'h Street, Springlield, OR 97477 Ph. 726-3759 Job Addres,J452 Ambles i de Dr. City Job. Cor1 20Q3-00584 Affidavit For Site Investigation Questionnaire Foundation Sub-Grade Approval for Residential Building Site in Ambleside Meadows - 1 st Addition Subdivision The undersigned hereby affirms that the excavation, stroctural fill and moisture stabilization methods for the building site at the address shown above was observed by me or an authorized employee of my finn and that the following istnle: . 1. The foundation sub-grade is capable of supporting a minimum of 1500 psf. and is adequate to support the building proposed 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 the sub-grade. 3. The site is adequately graded and drained to prevent the collection of water in tbe excavated area during construction. 4. The accompanying report tided "Site Investigation Questionnaire for Consulting Design Professionals" containing field observations and instructions made on !."?~."0? ' (date) for the building site was completed either by myself or by an ,,,,...t'loyee of my fmn under niy supervision. To the besfof my knowledge, the infonnation contained in that report is complete and accurate. Name ofUcensed Professional (print) Michael Remf)ol tit Signatur:;:. ~~~ . --.... ' Date An 1/01 r:vDIQI=~' /~lltI~ II