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Home My WebLink AboutPermit Field Test & Inspection Report 2003-8-11 Of AUI-ll-Z003 10:Z4am From-K & A Enllneerlnl, Inc " .a engln.trlng August 11, 2003 Fax To: Fax: Bob Barnhart, City of Sprfngfleld 726-3367 Subject: Geotech. report.. 2299 37'" St. +541-684-9358 T-Z56 P 001/006 F-908 K a A Engineering, Inc. P.O. 80123624. Eugene. OR 81402 621 Malhi St., Suite B) Eugene. OR 91402 (&41) 684--9399 Voice (141) 684-9368 FAX From: Michael Remboldt, P.E. Pages: 6 DaI8: 8/11/2003 Attached is the geotechnical report for the River Valley Builders Inc. project at 3452 Ambleslde. Please call If you have any questions. ~. Michael Remboldt, P.E. K & A Engineering, Inc. AUI-II-2003 10:24am From-K & A Enllneerlnl, Inc +541-684-9358 T-256 P 002/006 F-908 .; Community Servjcc~ Div. Building SafelY CITY OF SPRINGFIELD, OREGON 225 Sill Strecl. Springfield. OR 97477 Ph. 726-~759 Job Address ':l452 Amb~'e~ ; rlj:) Iilr. City lob 4# car, 2Q03-0Q584 .. AMBLESIDE MEADOWS SUBDIVISION--tST ADDITION I Site Investigation Questionnaire for Consulting Design Professionals foundation requirements - new structures on residentia110ts ThIs torm may be used as a temporary verification to allow construction to conUnue on the job site until the consultant's stamped aftidavit9D the site soli compaction and stabUlzatlon Is submitted to the City. ThIs form mbst be completed by a licensed design professional (engineer or architect) or hlslher authorized employee, and submitted to the building inspector prior to requesting City inspeet10DS or placing foundation concrete. It is important that all questions be 811SWered completely for the foundation site to be approved for construction. Owner and/or Contractor Ri vel" Valley Bui 1 ders. Inc. 1. Date oUhe design professional's site evaluation? 7/23/03 2. Bas the design professional reviewed a copy of the geotechnkallnformation for the subdivision that was provided with the building permit? Yes xx No_ lf not, please contact this office for a copy of the report. The design professiontJ/ must be familiar with the geotechnical information before completing this form. 3. What was the size and depth of the exeavatJon and lor fill? Excavation was agDI"OX. 4~l( 41\' o.nt inl""lJ\(ling ~ri\le"'iY iC:~~"E Depth of excavation ranQed from 1.0 to 2.n-f~Pt -- . Was existing non-stmctural fill or expansive soil encountered on the lot? Yes;u.No If "yes'\ what types) depths and locations? T.he"~ \."......g approx. 1:U- to 2. O-feet of-' oose construct'f on debris coverina the ground includ1nq woody material. SmLl If Iln"'''Y'..gQ.t"t:! tR8. ~gRg~""e'ih- deBris ecl"l! I ~...d..-o....~ . J d -., , .. ~~, ""'>.r <;:"...c; \ovlJlpacte coarse c,.ushed. QIl~"I"Y )On,.!! tl'l ;l fi"'pt-h ()f iPprf.1"~''':'~~' a t&-4--fe:t. Our unde.~stand' no '! s thi'lt this w~~ plat'Prl din'" n~ "l'\nstI"UC+~ ^'" 'Jf tl:le SI.Ibd1V1 Sl on. What measures were1aken to remedy the soil condition (include type of engineered fill used to stabilize the soil)? --.Ih~ 11n~II;hh 1 Q (,Ot:lit"ycti Qn debri s was removed. 1 AUI-11-2003 10:24am From-K & A Enllneerlnl. Inc +541-684-9358 T-256 P 003/006 F-908 ;;; Community Service", Div, Building Sufely ClTY OF SPRINGFIELD, OREGON 225 Slh Sln:t:I, Spnngfield, OR 97477 Ph. 726-3759 lob Address 3452 AMbo' esi de Dr. City lob ~OM.. 2003-0n58LJ ThQ qll::a......A~rr" ~..c: 1Q\lAlAd-::anl"l ::a thin 1 i of+ o.f..d,Qnc:p_~l"l'Idpd crushed aQQrpol'lte (3 to 4-inches in thickness) was placed over the foundation area and compacted. Is the site as prepared adequate:61 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. H inadequate. what measures are needed to provide constant moisture content in the sub grade? Is the site as prepared adequate [! inadequate 0 to suppon 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 COmpactlOD of the engineered On, or is there a speclal inspection report fortbeomlng from a qualified agency? 1 witnessed Plac~ment 0 Speciallnsplcompaction report CJ Our understanding is that compattf6n records are in ex4stance at the City. s. The design professlonallntends 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 method shown on the original constroetion drawings......... ................ 0 The typical "Foundation Drain' drawing attached to permit... .. ......... .. ... .. ~ Perforated perimeter drains are not required.. .... . .. ...... .... " ... . ... .. ... . . .... 0 COJI1lII1Cnts: Note: City inspectors will inspect installed drains prior to cover upon request... Call: 726-3769 to schedule inspection, 2 AUf-ll-Z003 10:Z5am Frcm-K & A Enflneerlnf, Inc +541-684-9358 T-Z56 P 004/006 F-908 Community Serviec:~ DIY, BUilding SoIfely CITY OF SPRINGFIELD, OREGON 225 5'h Sl~t, Springfield, OR 97477 Ph. 726-3759 Job Address 3452 Ambl es; de Dr. City lob # Cl?~ 2003-00584 Low-point crawl space drains are required to prevent the build-up of excess moisture inside the foundations during (and after) construction. This drain may be Installed lflii: foundation pla_,.-.....~nt onlv with the exnl'eSS Del'miSflion of the desin Drofessional. 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 signijkant moisture build-up problem within the foundation... .... ...... ~ (The low-point drain may be installed at the fram1 ng _stage of construction) POll II HGm.framJIlR. fOOfing. etc. b. Has the design professional observed and approved the installation of the required low point drain ?..................... .............. Yes, No, v 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 Dot shown on the foundation drawings for the buUding? 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-Z003 10:Z5am From-K & A Enilneerlni, Inc +541-684-9358 T-Z56 P 005/006 F-908 Community Service~ Ow, Building SafelY CITY OF SPRINGFIELD, OREGON 22~ Sill SlnlCI, Springfield, OR 97477 Ph. 726.nS9 Job Addresil452 Amh 1 es; de Dr. City Job ~ _\~~j ?~OJ" ():O~l}~ The undersigned design professional (or tudhorit.etl employee) attests that he/she oblened required moisture stabllily procedures on this 1iIe, and thai such procedlU'l/S were tlCcompUshed before any changes occurred in the moisture conlent Dille sub- grade under tllld around the bulldlng (wheN expansive lOth were IlICounured). The undersignetlfurther attests thai the sub-grade, as prepared, Is tuleqlUlle to support the b"'Uting proposed for this site. Additional comments: (Note): A copy of this report shaD be kept on site with the appro'fed plans at all times. This report shall be followed by an affidavit, signed and stamped by the design professional under whose auspices thig 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. __ _....- ,4I>r-... Slgnatu~ . -.,.... "-J.... . - Name Mi,..h1l.@l R~mboldtf P.E. Tltle}'r1nciDle fJlaineer C~8DV K & A EriaineerinQ. Inc. Phone (~4') ~A4-a~QQ Licensee Michae1 Remboldt, P.E. License - '9414 I ~/;j f I ~UU4 expires The geotechnical report for the Ambleside Meadows - 1st 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 from collecting in or around the foundation areas during and after the constIUctioD 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 fmish grade of landscape soil adjacent to the foundation should be at least 24" above the expansive bearing soils, firmlv comoacte4 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 AUI-11-2003 10:25am From-K & A Enllneerlnl, Ine +541-684-9358 T-256 P 006/006 F-908 -' Communuy Service, Dw, BUlldmg Saf~ty CITY OF SPRINGFIELD, OREGON 22~ Slh ~lrocl, Springli~ld. OR 97477 Ph 726-3759 Job Addres,J452 Amb 1 es i de Dr. City Job' cor, 2003 - 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. 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 flnn and that the following is tnle: 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 the excavated area during construction. 4. The accompanying report titled "Site Investigation Questionnaire for Consulting Design Professionals" containing field observations and instructions made on !/?~l~f)? (date) for the building site was completed either by myself or by an employee of my rum under my supervision. To the best of my knowledge, the infonnation contained in that repon is complete and accurate. Name ofUcensed Professional (print) ~ichael R~mbQl dt Date R/ll/M r .,. signatu~ ~~ ~ ~IOj:C:. /~,/~t:J.- II