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HomeMy WebLinkAboutPermit Building 2003-1-15 ~ Community Services Div, Building Safety CITY OF SPRINGFIELD, OREGON 225 5th Street, Springfield, OR 97477 Ph. 726-3759 Job Address 3422 Fa 1 con Dr. City Job # COM 2003 00005 SPRINGFIELD ~~~;~~:~~~t~ t;~,:;::~Jf~t~~t:~.~~,~~~.~~: ~~ ~>~; l!;':'~f~:~ ~~~~;t~;~:;3;.~S': ~~\:1~'~1~3' i..(:;~~~. .;a:! .r~ ~ ;- :~;.:~. :~.~ : AMBLESIDE MEr\.OOWS SUisDIVISION-tST ADDITION Site Investigation Questionnaire for Consulting Design Professionals oundation requirements - new structures on residential lots This form may be used as a temporary verification t~AAow construction to continue on the job site until the consultant's stamped affi~avit~n the site soil compaction and stabilizatioi} is submitted to the City. This form must be completed by a licensed design professional (engineer or architect) or hislher authorized employee, and submitted to the building inspector prior to requesting City inspections or placing foundation concrete. It is impo~t that all questions be answered completely for the foundation site to be approved for construction. Owner and/or Contractor RH Homes 1. Date of the design professional's site evaluation? 1/15/2003 2. Has the design professionan reviewed a copy of the geotechnical information for the subdivision that was provided with the building permit? Ye~ 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 thisform. 3. \Vhat was the size and depth of the excavation and lor fill? Aoprox. 40' x 3D' not includinq driveway access. Depth ranged from 2.0 to 2.5' Was existing non-structural fill or expansive soil encountered on the lot? Yes..:y,:y.No_ If "yes", what types, depths and locations? Soils at the site consisted of 1.0 to1.5-ftofdark brawn wet mod. dense mod. plastic silts and sandy-silts with construction debris over a soft, tan highly-plastic saturated clay. The clay lS Ilkely to have a fllgh IlqUld Ilmlt and moderate. to nigh potential foy' shriIlR/~well. What measures were taken to remedy the soil condition (include type of engineered fill used to stabilize the som? The site was ,excavated to a depth of 2.0-ft min. to-undisturbed tari clays. Approijto to Z.O-feet of 1 11.2-1n. mlnus dense-gradedcrusned aggregate was placed on the clay and compacted. 1 ~ ...:..........I Community Services Div, Building Safety CITY OF SPRlNGFIELD, OREGON 225 5th Street, Springfield, OR 97477 Ph. 726-3759 Job Address 3422 Fa 1 con Dr. City Job # COM 2003-00005 A pp-rfo~ated 4-in. ADS drain was placed around the perimeter of the excavation prior to placement of the cr. aggregate and routed to drain to the street. The footings should be formed on the compacted cr. aggregate and covered wlth a mlmmum ot ]Z-lnches at sllty soil. Is the site as prepared adequate,@ 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? Is the site as prepared adequate IRJ 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 compaction of the engineered fill, or is there a special inspection report forthcoming from a qualified agency? I witnessed Placement 0 Speciallnsp/compaction report f9 compaction test results attached 5. The design professional intends to use the following method for installation of 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 'Foundation Drain' drawing attached to permit..... ............. ... 0 Perforated perimeter drains are not required .................................... ... 0 Comments: The perimeter footinq drain was installed as per our recommendations on the site during excavation. Note: City inspectors will inspect installed drains prior to cover upon request... Call: 726-3769 to schedule inspection. 2 .' Community Services Div', Building Safety CITY OF SPRINGFIELD, OREGON 225 51h Street, Springfield, OR 97477 Ph. 726-3759 Job Address 3422 Falcon Dr. City Job # COM 2003-00005 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 after foundation placement onlv with the exPress oermission of the desism professional. a. The design professional has determined the following: The crawl space drain is required when thefoundation is installed..... 0 The low-point drain can be installed after foundation placement without a significant moisture build-up problem within the foundation............. 0 (The low~point drain may be installed at the , frami n~ ,',stage of construction) post & be~franung, roofing. etc. b. Has the designprofessional 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, stonn sewer, sump pump and discharge line to the street, etc.) ~;~ The design professioIial,must determine whether the approved petmit drawings have adequate foundation steel. Is any additional foundation steel required that is not shown on the foundation draWings for the building? Yes _ No~. 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. '-.f, 3 'I' ~ Community Services Div, Building Safety CITY OF SPRINGFIELD, OREGON ili .,' 225 5 Street, Springfield, OR 97477 Ph. 726-3759 Job Address 3422 Fa 1 con Dr. City Job # COM 2003-00005 The undersIgned design professional (or authorized employee) attests that he/she observed required moisture stability procedures on this site, and that such procedures were accomplished before any changesoccuiTedin the moisture content of the sub- grade under arid arouiuJ the building (where expansive soils were encountered). The u1uJersigned further attests that the sub-grade, asprepared, is adequate to support the building proposed for this sue. ' Additional comments: , (Note): A copy of this report shall be kept on site with the approved pians atall 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 fn:lI11ing inspection for the building. Signatu~~.....~~-. .' " Name r~ichae1 Rembo1dt ' TitlePre,sident Company K & A Engineering, Inc. Phone 684-9399 Licensee ~1i('ha~ 1 R~mbo 1 fit License #19474 c::xpires 12/31104 The geotechnicalrepoit for the Ambleside Meadows - 1 st Addition Subdivision recommends iIilmediate 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 least95% of ASTM D698 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 reportfurtber emphasizes $at the finish grade of laildscapesoil adjacent to the foundation should be at least 24" above the expansive bearing soils, fmnlv compacted to reduce the infiltration of water at the, sUrface. The adequacy of fill soil material around the building must be verified toth6 satisfaction of the design professional. 4 Community Services Div, Building Safety CITY OF SPRINGFIELD, OREGON 225 sth Street, Springfield, OR 97477 Ph. 726-3759 Job Address 34?? Fa 1 con Dr. CityJob # COM 2003-00005 ~:';~':'::~r: Y:~_.~ :>~~ '.:~r~ :..~':::~;:) ':~~' :.~: ,,~~~. ~t~:~~~:~~~~~~:~.{;~t;~~::;.~~ , Affi,davit For Site Investigation Questionnaire , , Foundation Sub-Grade Approval for Residential Building Site in Anlbleside 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 fiffil and that the following is true: ,," 1. The foundation sub-grade is capable of supporting a mininium of 1500 psf,and I's adequate to support the buildiilg 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. Thesite is adequately graded and drained to prevent the collection of water in the excavated area dliring construction. 4. The accompanying report titled "Site Investigation Questionnaire for Consulting Design Professionals" containing field observations and instructions made on 1/15/2003 " '(date)for the building site was completed either by myself or by an employee of my firm unger lIlY supervision. To the best of my knowledge, the information contained in thatreport is complete and accurate. ,M I c/uv.-! (k,t~t~/;./1--. ' Name of Licensed Professional (print) Signatur~~~~.,~,. .~,,"."'_' ' ~2-t/;~ / Date '7 " EXPIRES:, /'1~1 jOi)- ( 'Ii : \,l I:i> , ... ~' t. If' ~ '" ~:: ' J " In-Place Density 3422 Falcon Dr. Eugene, OR .. In-Place Density Moisture Content Initial Final Wet Moist Dry Dry Reading, Reading, Density, Sample + Sample + Moisture Density, Test No. cf cf. Volume, cf Weight, g Weight, lb. pcl Pan,g Pan,g Pan, g. Content, % pcl % Compaction 1 0.0075 0.0258 0.01830 1227.1 2.68 146.6 100.4 413.9 393.2 7.1% 136 97% 2 0.0076 0.0259 0.01830 1170.6 2.56 , 139.8 100.1 456.5 440.0 4.9% 133 95% 3 0.0076 0.0215 0.01390 1004.9 2.19 157.7 98.6 408.5 384.7 8.3% 145 103% ASTM 0698 for 1 1/2-in. minus 140.0 pef Average Std. Dev. 6.7% 1.8% 99% 4.3% -,'..) .t. ~~ . Client: RW Homes Project: 5.03 K & A Engineering, Inc. .~. ..:.:; .~. .... "'-, ,,:.