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Home My WebLink AboutPermit Building 2003-6-4 Jun-n4-znn3 Ql:3Spm From-K & A Eniineerini. Int. ~~ June 4, 2003 Fax +541-684-9358 T-zn8 p,nol/oos F-ISn K Ir A Engineering, Inc. P.O. Box 23624, Eugene, OR 17402 1521 Market St., Sub B, !ogene. OR 97402 (641) 61J4..9399 Voice (&41) 884-8358 FAX To: Bob Barnhart. City of Sprfngfleld From: MIchael Remboldt, P.E. Fax: 726.3676 Pages: 6 Subject: . Geotech. report - 3408 Ambleslde Dr.. Date: 6/4/2003 \ Attached Is the geotechnical report for a Tyndall Homes. project In Ambleslde. Please call if you have any Que$tions. ~ , MIchael Remboldt, P.E. K & A Engineering, Inc. \ Jun-04-2003 01:37pm From-K & A Enaineerina. Int, +541-684-9358 T-208 P,002/006 F-150 , / CommunilY Services Oi", Building Surety CITY OF SPRINGFIELD, OREGON 225 Sd1 Street, Springfield, OR 97477 Ph. 726-3759 Job Address ,1lW~~",b \ ~$';'de ' 0" _ City Job # COM Z003-QQ36(l AMBLESIDE'MEADOWS SUBDIVISION-1ST ADDITION Site Investigation Questionnaire for Consulting Design Professionals , foundation requirements - new structures 'on residential lots This form may be used as a temporary verification to.Jiow construdlon to eontIDue OD the Job site until the amsuItant's stamped afficIavit';n. the site soil compacdon and stabWzation Is submitted to the City. This 1; "',I, ,,,, mUst be oompleted by B, Hc:ensed design professional (engineer or architect) or hislher authorized employee, and submitted to the building InspeCtor prior to requesting City Jns~t1011s or p~dng foundation concrete. 'It is important that aU questions be answered completely for the foundation site to be approved tor construction. / Owner andlor Contractor Jeff Tynda 11 1. Date of the desip professional's site evaluation? 4/29/03 2. Has the design professional reviewed a copy of the geotechnical information for the subdivision that was provided with the building p"....Jt? YesXX No~ . If not, please contact this office for Q copy of the report. The design professional must be familiar with the geotechnical information before completing this form. - 3. What was th, size and depth oftbe ~cavation and lor 'fiU? F'x~1il va tin" Wl'l ~ Iilppl"nx. 4n' y Fi.D I x 3-f~et deep. Was existing non-strUct\ll'alf'ill or expansive soil encountered on the lot? Yes~ No~ If uyes'" what types, depths and locatioIl$? ..SD.ih' at cdh r.ons-ht.~rlnf 2.Q to 2. fi-fee,t of soft brown silts' oye.r .1 tQ 1 .5-fee.t of dark ('trav/black or9ani'c. snts and clays over darK brown stiff clays. The organ1e Silts/clays' are cons'idere.d unsu1table for foundation support. What measures were taken to remedy the soil condition (inclUde type of engineered fill used to stabilize the soil)? The soft ol"aanic sll tylcla~ so;l~ were removed and replaced with select qranular fill,that consisted of 3~ crushed, rock (coarse, open-graded). ' 1 Jun-04-2003 01:37pm 'From-K & A Enlineerinl, Inc, +541-684-9358 T-208 P,003/006 F-150 Community S4:rvices Oi\!, Building Safety CITY OF SPRINGFIELD, OREGON 225 Slh Sm:ct, Springfield, OR 97477 Ph. 726-3759 JobAd~340A Amhl~~~np n~ City Job # COM2.003-0036'O A PQI"hn@t~lI' fonHng dl"',,1"n lAIllC';ns.hl1pdJo encul'l'" ~.tahle ~Qi'etll"'~ content of the.. \1~del",,,tna ~-tiff c1"w~. Is the site as prepared adequate [i inadequate 0 to maintain constant moisture content in the sub grade? Note: Verification of moisture stabilization in the sub grade is a requirement of the geotechnical report. and must be affirmed before construction can continue. If inadequate. what measures are needed to provide constant moisture content in the sub ~de? Is the site as prepared adequate I;k inadequate 0 to support the proposed . structure? An affirmative answer is requisite to proceeding with construction. If bu<<lequate, what additional work is needed to provide adequate foundation support? 4. Did the design professloDal witness plaeement and compadion of the engineered flU. or is there a speciallDspection report forthcoming from a qualified agency?l witnessed Placement Iil Special/nsp/compaction report 0 5. The design professional Intends to use the following method for Installation of perforated perlaneter tooting drains: . The design on the attached drawing provi(ied by the design professional ...... D The method s~own on the original construction drawing$. . . . . ... ...... . .. . .. .. ." 0 The typical 'Foundation Drain' 'drawing attached to permit ..... ...... . . . .. .. . . . Ii1 Pedorated perimeter drains are nouequired ....................................... 0 Comments: Note; City inspectl!'s will i~pect m:ta1letl drains prior to cove" upon request... Call; 726-3769 to schedule Jnspectlon. , 2 Jun-04-2003 01 :37pm From-K & A Enaineerina. Int, +541-684-9358 T-208 P,004/006 F-150 Communily Servil.:es Di\'. Building Sl1f~ty CITY OF SPRINGFIELD, OREGON 225 51J1 SlrcCl, Springfield, OR 91477 Ph. 726.3759 Job Address 34Q8 Amh 1 Qs-1 de. 0", City Job ## COM2:aQ3~aa36Q 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 foundation placement gnlv with th't.UPress uermissiog 9fJ!Ie desim Dfor".onaJa a. The design professional has detennined the following: The crawl space drain is required when thefoundation is inttalled..... 0 The low-point drain can be installed after foundation plat;ement without a significant moisture build-up problem within the foundation............. 0 (The low-point drain may be installed at the f~tr~. . stage of construction) pclst tJW1.pumllII. rooftRg. etc. b. Has the design professional observed and approved the installation of the required low point drain?.................................. Yes, No ,xx if "yes", where is the low point drain located under the building and where does it'termmate at this time? (must be an approved location, i.e. street gutter, storm s~er, sump pump and discharge line to the street, etc.) Tlle design professional must detennine whether the approved pennit drawings have adequate foundation steel. Is any additional foundation steel required that is Dot sb" j ,,," on the foundation drawings for the buUdlna? Yes No..n....... If Ilyes", describe additional steel required (or provide drawing). . The following statement must be signed by the individual doing the observations and providing directionfor the ,excavation and site preparation work on the property. ' 3 Jun-04-2003 01:38pm From-K & A En,ineerin,. Inc, +541-684-9358 T-208 P,005!006 F-150 Community Services Oi\l, Building SafelY CITY OF SPRINGFIELD, OREGON 22~ 51h Slr~~\. Springfield, OR 97477 Ph. 726.3759 Job Addtes!I City Job # 3408 ~bleside Dr. COM2003-00360 The undenigned design professioiull (or tlutllorlt.ed ,mployee) attests tlull helahe observed required moisture stability procedure. on this ,ite, a1Ul t1uIt such pTOted"r,s we" accompUshed before an1 changes occurred in the mollture collt8nt o/the sub- grade wulBr alUllU'Ound thB building (where expansil1e soils were encountered). The "MBT8igra,d further attests tluzt the sub-grade, as prqJll1'ed, Is tulepilte to support the building proposed for this site. Additional comments: (Note): A copy of this report shan 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 signedlst.:....r..d affidavit together with a copy of this report shall be submitted to ,this office prior to requesting framing inspection for the building. Signatul~ ( .. - . i:.- ~--A.. r- Name Michael amubold~- P.E:,. Tit1e...f!:.~~;rt~nt/prfn~1j)h ~o.gineer Company K & A Enqineerfnq, Inc. Phone 684-9399 Licensee Micha~l RpmhnldL P J:' License # 1 9474 expiresJ,21':l1 Jn4 The geotechnical report for ~ Ambleside Meadows - 1 Sl 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 offIll compacted to at least 95% of ASTM D698 for foundation !".''''!'aration. The report also recommends . that measures be taken to prevent water t.u'." collecting in or around the foundation areas during and after the constnlction process, and that positive site drainage be provided to reduce the infiltration of surface water into the expansive soils. . The geotechnical report further emphasizes tJ1it the finish grade of landscape soil adjacent to the foundation should be at least 24" above the expansive bearing soils. ~ comDacw! 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 Jun-04-2003 01:38pm From-K & A Enaineerina, Inc, +541-684-9358 T-208 P,006/006 F-150 Community Services Div, Building Saftll)' CITY OF SPRINGFIELD, OREGON 225 51h Slrccr, Springfield, OR 97477 Ph. 726-3759 lob Address. 140R Amblesf,dLllI:,. City Job # COM2003-00360 .. Affidavit For Site Investigation Questionnaire Foundation Sub-Grade Approval for Residential Building Site in Ambleside Meadows - 1 at Addition Subdivision The undersigned hereby affirms that the excavation. structural fill and moisture stabilization methods for the building site at the address shown above was observed by ~e or an arlthorized employee of my firm and that tbe following Is true: 1. The foundation sub-grade is capable of supporting a minimum. 9f 1500 psf, and is adequa~ to support the building proposed for this site. 2. The moisture content of the excavation was adequately maintained during the site t'&...yaration 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 p~vent the collection of water in the excavated area during construction. 4. The accompanying report titled "Site Investigation Questionnaire for Consulting Design Professionals" containing field observations and inStnlCtiODS made on Apdl 29. 2003 (date) for the building site was completed either by myself or by an employee of my fum under my supervision. To the best of my knowledge. the information contained in that report is complete and accurate. Signat~~ ~-', , ~..- - ~~~ f8f"',:;:~ ~'--~. , ~~~OUGOH ,~~ ~~~ ~~ DENNIS ~\.~ EXPIRES: ~. Name of Licensed Professional (print) ..Mic.bI tI> 1 ~pmhn 1 rlt Date-.1L,..A ~ _ ?6,f)~