The URL can be used to link to this page

Home My WebLink AboutPermit Building 2003-11-14 Ncv-14-2003 09:20am Frcm-K & A Engineerina. Inc, +541-684-9358 T-385 P,OOI/006 F-403 \. a engineering K " A Engineering, Inc. P.O. Box 23824, Eugene, OR 97402 521 Marlcet St., SUite., Eugene, OR 97402 (541) 884-8399 Voice (541) 684-9358 FAX Fax To: Bob Barnhart City of Springfield 726.es67 ~ (,. ,~ From: Michael Rembollft, P.E. Pages: 6 Date: 11/14103 Fax: Subject: "' GeOtech.report... 3391 ~on.Dr;.;; AUached is the geotechnical reportfor the' River Valley BUilders Inc. proJect at 3391 Falcon Or. Please call if you have any questions. ~. Michael Remboldt, P.E. K & A Engineer1ng. Inc. Nov-14-2003 09:20am From-K & A Enlineerinl, Inc, +541-684-9358 T-385 P,002/006 F-403 Community Scrvkcs Div, Building Safely CITY OF SPRINGFIELD, OREGON 225 Sill SU-eel, Springl1cld. OR 97477 Ph, 726.J759 Job Address...1J9l Fa 1 con,Dr. City lob # COM2003-0l06l AMBLES IDE MEADOWS SUBDIVISION-1sT ADDITION Site Investigation Questionnaire for Consulting Design Professionals foundation requirements - new structures on residential lots This form may be used lIS a 4......0.. (U J verification to, aUow construction to continue on the job site until the consultant's stamped aftldavltpft the site soli compaction and stabilization Is submitted to the City. ThIs fonn must be completed by a Ucensed design professional (engineer or architect) or hlslher authorized employee, and submitted to the building Inspeetor prior to requesting City inspections or placing foundation concrete. It Is Important that all questions be aDswered completely for the foundation site to be approved for construction. Owner and/or Contractor Rive!" Valley Builders I. Date of the design professional's site evaluation? 10/23/2003 2. Has the design professional. ,,~;ewed a copy of the geotechnical jDfonnation for the subdivision that was provided with the building &"!I~ld.~t1 Ya!- No_ 1/ not, please contact this office for a copy of the report. The design professional must be familiar with the geotechnical information before completing this 107m. 3. What was the size and depth of the excavation and lor fill? Appr.oll 4li I L40 I ExcavQtinn Wi'll:: ~pprnl(imilb'y 4.0 to 5.0.ft. deeD. Was existing non-structural till or expansive soil encountered on the lot? Yes~ No_ If "yes", what types, depths and locations? . ..I,u,+ rH "{Lt!lF> l:tte lndir.tlt,~ thgt, t~re WjlS al.0 to 1.5-ft la.\/er nf !:t1ff oriiV - tan plastic cla_y fill underneath loose organtc silty topsoil. What measures were taken to remedy the soil condition (include type of engineered fill used to stabilize the soil)? The thi n 1 aver of 01 ast i c cl ay was removed off site. The site was excavated to undisturbed native, tan/brown Clays approximately 4.0 to 5.D-ft. belOW or191nal grouna surrace: 3 to ~-1 ncn open-!]raaeo qua rry l) tone l~ f'u::ili\;u} Wll::, l.r~ CI'-I'.:J VII dle;;- undlsturbed native tan/brown clays to foundation grade. 1 Ncv-14-2003 09:20am Frcm-K & A Eniineerini, Inc, +541-684-9358 T-385 P,003!006 F-403 C(lmmunily Scrviccli Div, Building SafelY CITY OF SPRJNGFrELD, OREGON 225 5111 Slreet, Springfield, OR 97477 Ph. 726-:\759 Job Addresf!. :i391 FaJcp[l Dr. City Job # Ca!12,QClJ~a.1Q6'l Is the site as t'.....t-ared adequate iiI 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 measures are needed to provide. constant moisture content in the sub grade? T..A,:, 't,,{:+o. ,?S' p~QQ? ~,~ :.d&q~t@ prQli'dtd that ~ conti'nuon<:' footi'ng Qra tn ;-<:. in<:' ti R...~thp pori...~ fOlmdl!Hon at,tfia 5adt>, and stde.s', NOTLtl).atorqund,,!8ter (1 H:e,l if to nave been perched) ~8.S> en,cQuntere.d i,Yt - the.' axcava ttonat 4. O-.fe.et to deptb. Is the site as prepared adequateJ;J inadequate 0 to support the proposed structure? An affirmative answer is requisite to proceeding with construction. If madequate, what additional work is needed to provide adequate foundation support? 4. Did the design professional witness placement and compaction of the engineered nn, or Is there a special inspection report forth,..I>..JDg !l",...... a (lllalified agen~? I witnessed Placement Q SpecialITl$JJAfoTJIDactioTlreport 0 The open-graaed quarry stone. requ'f'f/[s'1'I0 s'pecfa lnspe,ctlon S. The design professionall"tends to use the foRowing method for installation of perforated perimeter tooting drains: " The design on the attached drawing provided by tpe design professional ...... 0 The method shown on the original construction drawings. . . .... ............. . .... 0 The typical 'Foundation Drain' drawing attached to permit ..................... ~ Perforated perimeter drains are not required .... .................. ... ..~...., ...... 0 Comments: Note: City inspectors will inspect installed drains prior to cover upon request... Call: 726-3769 to schedule inspection. 2 Nov-14-2003 09:21am From-K& A Engineering, Ine, +541-684-9358 1-385 P,004!O06 F-403 Community Services Div. Building Sltfely CITY OF SPRINGFIELD, OREGON 2255'11 Street, Springfield, OR 97477 Ph. 726-3759 Job AddMSll City Job # ??9-1-fil t;~... COM201J3-01n';1 Low-point erawl space drains are required to prevent the butld-upof excess moisture jnsJde the foundations during (and after) oonstrudion. This drain may be Installed IfW: foundation placement ~nlv with theexwess oermJSslOD gfthe deUm,p.., .,t1i~.\ional. 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 foundation plo.cemenl without a significant moisture build-up problem within the foundotion............. Qc (The low-point drain may be installed at the . ,stage of construction) port & beQm,j;.......'tl. roojlng. etc. b. Has the design professional observed and approved the installation of the required low point drain?............. ....... ............... Yes, No V'9 if "yes>>, where is the low point drain located under the building and where does iHerminate at this time? (must be an approved location, i.e. street gutter, storm sewer, sump pump and discharge line to the slreet, etc.) NOTE th..+ <:lUl"ing 1"'~t-we.atl1i'l" c::~e{'ial rq~:a"~.o~ may flQ "Q('Q~'~elry to keep wat@.. out otJ.hc jOvt'~vat'l'on/foundat;nn~. Ne recommnend monitori"" the site occas'sionallv forqroundwater $'eeps from the. excavations'. The design professional must determine whether the approved permit drawings have adequate foundation steel. Is any additional foundation steel requireclthat is not shown on the foundation drawings tor the building? Yes NO...JUL. 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 Ncv-14-2003 09:21am Frcm~K & A Eniineerini, lnc, +541-684-9358 T~385 P,005/006 F-403 Comml.lniLy Serviceli Div, Building SafelY CITY OF SPRINGFIELD, OREGON 225 51h SLn:cl, Springfield, OR 97477 Ph. 726-:n59 JobAddreu 11Ql Fa.lrnn Or City lob # COM2003-01061 The undersigned design projesslolUll (or IlUtholized employee) flItests that he/she OOlervetl req~l'ed mol,ture stability procedures on this sits, IUUl t1ulI such plYJCedure& were accomplished before any clumges occurred in the moisture content of the sub- gro,de ""der and llI'ound the building (where expansive soils were encountered). TIa, undersigned further flItests that the sub-grade, as prepared, is adepate to support the building proposed for this site. AddUlonal comments: (Note): A copy of this report shaD be kept on site with the approved plans at all times. This report shall be followed by an affidavit, signed and sta.au!,.A 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 inspectl,on for the building. Signatu~~ Name Mitj1...~l ~Qrvholdtl p 1=" Title-E.ci.n,.;~no;n~~1'" Company K & A Enqine.e.ri'nl1. Inc. ' Phone 684..gJ9g ~fce~:~a~~:lgt , License # , (tU4 expixes 12l)ll2gnA ! f fl . The geotechnical report for the Ambleside Meadows - 1 JI 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 D698 for foundation 1'" wl'aration. The report also reconunends that measureS be taken to prevent water f..u&u 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 funher emphasizes that the finish grade of landscape soil adjacent to the foundation should be at least 24" above the expansive bearing soils, fmnlv com~acted, to reduce the infiltration of water at the surface. The adequacy of f1l1 soil material around the building mustbe verified to the satisfaction of the design professional. 4 Noy-14-Z003 09:ZZamFrom-K & A Engineering. lne, +541-684-9358 T-385 P,006/006 F-403 Community Services Div.Building Safely CITY OF SPRINGFIELD, bREGON 22:'i Sill Streel, Springfil.:Jd, OR 97477 Ph, 726.3759 JobAddreso 3;~1 r:tl :u:~ rr. City lob #I r0M?nQ3-01 Oli 1 Affidavit For Site Investigation Questionnaire Foundation Sub-Grade Approval for Residential Building Site in Ambleside Meadows - 1 st Addition Subdivision The undersigned hereby affmns 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 ....&Uyloyee of my finn and that the following is true: . 1. The foundation sub-grade is capable of supporting a minimuIll of 1500 psf, and is adequate to support the building ........i)sed fot this site, 2, The moisturecolltent of the excavation was adequately maintained during the site i'~.:;...aration process and was adequately covered to stabilized moisture content prior to any significant change in moisture content of the sub-grade. 3. The siteis adequately graded and drained to prevent the collection of water in the excavated area during construction. 4. The accompanying ~port titled "Site Investigation Questionnaire for Consulting Design Professionals" containing field observations and instructions made on , 0/23/2003 (date}for the building site was completed either by myself or by an employee of my fumunder my supervision. To the best of my knowledge, the information contained in that report is complete and accurate. Name of Licensed Professional (print) f.fi chael Rembo 1 dt. Signatu~ . c:--,., ~d - --- EXPIRES: l)ate 11/13/2001