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Home My WebLink AboutPermit Building 2004-12-29 . ,i Dec-29-2004 02 :08pm From-K & A Enii neer i ni, I nc. +541-684-9358 1-854 P.OOl/006 F-035 a fnginl!'E!'ring K & A Engineering, Inc~ P.O. Box 23824, Eugene, OR 97402 521. MlrkelSl, Suite B, Eugene, OR 97402 (541) 684.9399 Voice (541) 684-9358 FAX i. Fax To: Bob Barnhart, City of Sp~ngfleld From: Michael Remboldt, P.E, fax: 726-3676 c:.c:.... C;~AJ Pages: 6 Subject Geotech. report -.3479 Ambleside Dr.. Dale: 12129104 Attached Is the geotechnical report for the RIVer Va/ley Builders Inc. project at 34 79 Ambleslde Drive Please call W you . have any questions. Michael Remboldt, P.E. K & A Engineering, Inc. . Dec-29-2004 02:08pm From-K & A Eniineerini. Inc. +541-684-9358 T-854 P.002/006 F-035 Community Services Div. Building SllfelY CITY OF SPRINGFIELD, OREGON 225 5th Street, Sflriilgfi~ld, OR 97477 Ph. 726-3759 JobAddress 3479 Arnbleside Drive City Job # _ C0f'12.QQ4-01445 AMBLESIDE MEADOWS SUBDIVISION-1sT ADDII10N Site Investigation Questionnaire for Consulting Design Professionals. foundation requirements - new structures on residential lots This fonn may be used as a temporary verification to ~ow construction to continue. OD the Job site until the consultant's stamped affidavit-en the site soU compaction and stabllization is submltted to the City. This form must be completed by a licensed design professional (engineer or architect) or hlSlher authorized employee, and submitted to the buDding inspector prior to requesting City inspections or placing foundation concrete. It is important that aD questions be answered completely'for the foundation site to be approved for construction. Owner and/or Contractor Ri ver Valley Bui 1 ders 1. Date of the design professlonal;s site evaluatJon? '2/'7/2004 2. Has the design pr()fessional reviewed a copy of the geotechnieallnfOrmatioD for the subdivision that was pro\fided with the building pennit? Yes.,lL 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 this form. 3. What was the size and depth oUbe excavation and/or fiD? The overall pl an size of the excavation is approximately 60' x 70'. The excavat1o.n \Alas made in three benches. lne aeepest CUt \a aaYllgl1t garage)lS alJfJrOXlalIlI..~IYIU-rtHH. ill IItd!lfl~ d~ ~iH~ LrH.k(~uu~I" 3JJt;;. All "~!J'" bench -LI,Ql Wll1fJ3 01 UUIIJ Lilt;; 3l"lulll~ r::o"L~ (,I,11';;.V~st ~{.j@3 of "tl'le :.:JJ."f;;~t -i"C:i;:;a ir. se~tA f:-:lf. 1. 7~. :'H-~: !19A~ tRe S()ll~h ~~g~_ Was existing non-structural fill or expansive soil encountered on the lot? Yes_ No,L If uyes''t what types. depths and locations? What measures were taken to remedy the soil condition (include type of engineered fill used to stabilize the soiD? "50il S II at th is site conS i sted 0 f a-proximately 1 to 2-feet of black ornan1c S1tlY topsO'1 over tan/brown deco~posed ana weatnerea turraceous S1itstOne. jn~ ciecom~u~~~ ~l'tstone i~ nUHd:;"dU.Y 111((33;...1; dllJ IICl~ Cl 11;~';i JI:;;:~ICC ...~ ...vl.'(,;.);VII. fll"l,ue(\.)ures were necessary for stabilization. 1 Dec-29-2004 02:08pm From-K & A Eniineerini, Inc. +541-684-9358 T-854 P. 003/006 F-035 Community Services Div, Building Slltcty CITY OF SPRINGFIELD~ OREGON 22:; Sib Street, Springlidu, OR 97477 Ph. 726-3759 Job Addre~~ 3470 Ambles i de Dr1 ve City Job # COM2QQ4-0l4ilS JIDl'F' The cuts maLbe le.ft stan.dirlC'I in ~ cr'a~i?~c~. Wi'tMLJt l7e.t~tntn9 wa l1s i'f footin~s' are. not pl aced closer to. the uns'uppprted cut face. than tne ne10nt Of the cut. t1e. s'nou I d be con.tacted to pronae. spe.crrrc' r.~t;omrnenaati,oTllj. Tor root1 ng oearin'j ana paceJIJeJrc 011, ~i1e' uppe.r oem::he.s L1".l U I.. (l,JJ O'...~lIl Lv 1,I11.~U:Jl"\;I i LcJ ........l,;). Is the site as prepared adequate !XI 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 rnois~re content in the sub grade? r1O.Tr. tn~j; th~ r1~rn~pMj:>rf ~ i1 t~.tnlJf ba~' Ii low Dote.nUa 1 for. he.avi no i f qrmm~r is ; ntel7ceoted and carr1 e.d qff site. . . Is the site as prepared adequate..~ inadequate 0 to support the proposed , strocture? An affirmative answer is requisite to proceeding with construction. If inadequate, what additional work Is needed to provide adequate foundatioD support?, . ~~OTE our'recommenda t 1 ons (Fl bove 1 for footinrJs adjacent to unslJoDorted cuts< ' 4. Did the design professional witness ,placement and compaction of the engineered fill, or Is there a speclal inspection report forthcoming from a qualified agency? I witnessed Placement ~ Speciallnsp/compaction report 0 Fi 11 cons; ste.d of 3-1 nch l.?pen-graded crus.he.d quarry stone,. . 5_ The desilA~ionallntends to use the following method for installation or perforated perimeter footing drains: The design on the attached drawing provided by the design professional ...... 0 The method shown on the original construction drawings......................... 0 The typical iFoundation Drain' drawing attached to permit..... .......... .,..... EI Perforated perimeter drains are not required .......... .. .. . .. . .. , .. .. .. . .. . .. . ..... 0 Comments: We witnessed a perimeter drain i.nstalled att.he bas;e of.th~.qlJarry stone.. -rtll 1n tne g~raae. cut. vur unae,rs.tanalng rs mat .tne contractor i.ntends' ~v :1I::lLo.11 1;\ ~o::.t,.,v"Jc:dY'1~uudr\U Jntltl a~ lll~'ruutlt.iij 'It":!.tji:!i. Lti:~hou'd be. Jgl~~.ricU i:;;:~~r;~irl !J;~~rlJ~~~ll;d'atafnsuprior to ~(;~e;up~n~reqLuest.~.... Call: 726-3769 to schedule inspection. 2 Dec-29-2004 02:09pm From-K & A Enaineerins, Inc. +541-684-9358 T-854 P.004/006 F-035 Community Services Div, Building Safety CITY OF SPRINGFIELD, OREGON 2255'" Street, Springfield. OR 97477 Ph. 726-3759 Job Address City Job t 3479 Ambleside Drive COM2004..0l445 Low~point crawl space drains are requlredto prevent the build-up of excess moisture Inside the foundations during (and after) construction. This drain may be IliBtalled after foundation placement glv with the exoress nennlulon or the 4Bn orofesslonaL a. The design professional has detennined the following: The crawl space drain is required when the foundation is installed..... 0 The low-point drain can be installed after foundation placement without a significant moisture build~up problem within thefoundation............. 0 (The low-point drain may be installed at the frami np stage of construction) poll & beu""jtrlmJng, rooflng, flc. 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 locateduruler 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 ll-'l-'<'vved pennit drawings have adequate foundation steel. Is any additional foundatlou steel required that is not shown on the foundation'drawlngs for the building? Yes No xx . 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 Dec-29-2004 02:09pm. From-K & A Enaineerini, Inc. +541-684-9358 T-854 P.005/006 F-035 Community Services Div, Building Safc::ty CITY OF SPRINGFIELD, OREGON 225 Slh SlrcC::l, Springtleld. OR 97477 Ph. 726-3759 Job Address City lob # 3479 Ambleside Orive (;0:'1~ur14-a.ll~4b TIu undersigned design professional (or authorl:.ed employee) attests that helshe observed requ.ired moisture stability pracedu,.,s on this aite, and thot such procedures were accomplished before any changes occurred in the moisture content ofOu sub- grade underlJnd around the building (where expallSive lOUS were encountered). The undersigned furiher attests that the sub-grade, as prepared, Is adequate 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 signed/stamped affidavit together with a copy of this report shall be submitted to this office prior to requesting framing inspection for the building. Slgnature~~ - NamerHchael Remboldt CompanyK & A Engine.e.ri.ng, Phone 684-9399 ..-- _ Title p~; ncir.llUnc1i'neer t.ne. Licensee M1'chaal Rembol dt Ucensa #. 19.4]4 expires 12(3) /,200A The geotechnical report for the Ambleside Meadows - 1$1 Addition Subdivision recommends immediate moisture stabilization of exposed expansive sub.grade8t and that expansive soils be over~excavated and replaced with at least 12 inches of f1l1 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 report furtber emphasizes that the fInish grade of landscape soil adjacent to the foundation should be at least 24" above tbe expansive bearing soils, fmnlv com12JCted to reduce the ~nfiltration 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 . . Dec-29-2004 02:09pm From-K & A Eniineerini, Inc. +541-684-9358 T-854 P.006/006 F-035 Community Services Div. Building Safety CITY OF SPRINGFIELD. OREGON , 225 5th Street, Springfield. OR 97477 Ph. 72.6-3759 lob Address City Job" 3479 Ambleside Drive Com004",U 14tH) SPRINGFIELiiij- WiL- 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, 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 finn and that the following is troe: 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 adeqpately 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 the excavated area during construction. 4. The accompanying report .titled "Site Investigation Questionnaire for Consulting Design Professionals'~ containing field observations and instructions made on lJecember 17. 2004 (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) r1i chae 1 Rembo 1 dt. P. E. Date ]2129/2004 Signature~ ~