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Home My WebLink AboutMiscellaneous Field Test & Inspection Report 2000-6-15 Jun 26 00 . ./~'06/26/00 ''''f' 02:43p 09:38 FAX Ri.' Valle~ Bui Iders Inc 5417467 PSI SPRINGFIELD 541 367 . 1638 p.2 ~002 , . l...~illnformation ",WI. .To Build On ErrglnlMllfng . c-uJfIng . -"11 & 0 ~ l{ f'-cJf 51J~'-f ~~ June IS, 2000 Mr. Grcg Larkin River Valley Builders, Inc. P.O. Box 2041 Corvallis, Oregon 97339 Subject: Pad Completion Letter Ambleside Meadows, Lot 1/ 85 Springfield, Oregon Dear Mr. Larkin: Professionsl Scrvice Industries, Inc. (PSI) has completed a house pad subgrade evaluation at the above referenced lot. The foundation subgrade soils within the house pad area were visually classified as orangish brown clay. The house pad area was probed with a % inch diameter soil probe and appeared finn at the time of our site visit. Moisture content tests were taken at various' locations throughout the house pad. The moisture contents ranged from 29 to 35 percent. Based on previous testing performed on the soil type, the moisture content test taken is acceptable for this type of potentially expansive soiL The contractor then placed up to 12 inches of 5 inch open aggregate fill and 4 inches of crushed aggregate, granular fill oyer the bouse pad area to achieve final grade and compacted the material. A proofroll of tbe compacted granular fill was performed using a loaded dump tnlck. No deflection was observed within the house pad area at 1he time of our site visit. The crushed aggregate, granular fill visually appeared to he well compacted at the time of our site visit. Additionally, we recommend that finisbed grade adjacent to tbe exterior portion of the footings and slabs be at least 2 feet bigher than the expansive bearing ,oils. This is to provide a buffer from environmental'change, thar could cause the expansive soils to dry and bydrate. It will be imperative that the 2-foot buffer of landscape soil be compacted to a firm condition to reduce tile infiltralion of water at the surface. During foundation construction, water should not be allowed to collect in foundation excavations, on floor slab areas, or on prepared subgrades of the construction area either during or after construction. Undercut or excavated areas should be sloped toward one comer to facilitate removal of any collected rainwater, groundwater, or surface rUJloff. Positive site drainage ""dlor foundation drains should be provided to reduce infiltration of surface water around the perimeter of the house and benealb the floor slabs. The permanent grades should be significantly sloped away from thc house building areas and surface drainage should be collected and discharged such tbat water is not permitted to infiltrate the backfill and floor slab areas of the residence. ProfessIOnal Service IndustrIes, Inc.. 104M Shelley 51.. Springfield. OR 97477 . Phone 541n46-9649. Fax 54 1(746.7163 Ju!, 26 00 02: 43p Rilt Valle~ Bui Iders Inc , J '''0~/26/00 09: 38 FAX 5417467t PSI SPRINGFIELD ~"'f/ .. 541 367 1638 . ~003 p.3 Ambleside Meadows Lot #85 June IS, 2000 Page 2 of2 All crawl spaces should be provided with a low-point crawl space drain cODDectal to the storm sewer or approved disposal system (outlet). All oreaS of the crawl 'pace should be graded to drain to the low-point drain. All crawl space areas should be covered with a'visqueeo moisture barrier. The low-point drain should be lower than the elevotion of the visqueen moisture barrier. Based. upon our observations, the house pad subgrade has been constructed in general accordance with industry standards for lightly loaded (1,500 pounds per square foot or less) foundation loads typical for this type of construction. If you have any questions regarding this report. please feel free to contact us at 746.9649. Respectfully Submitted, PROFESSIONAL SERVICE INDUSTRIES. INC. ~~.~ r EXPIRES: 6/30 ,,1 J Brian Currier, E.LT. Staff Engineer Troy Hull, P.E. Project Engineer ,I . l...~ _lInformation ",~. .To Build On Engineering . Consulting . Testlng . April 26, 2000 Mr. Greg Larkin River Valley Builders, Inc. P.O. Box 2041 Corvallis, Oregon 97339 Subject: Pad Completion Letter Ambleside Meadows, Lot # 85 Springfield, Oregon Dear Mr. Larkin: Professional Service .Industries, Inc. (PSI) has completed a house pad subgrade evaluation at the above referenced lot. The fonndation subgrade soils within the house pad area were visually classified as orangish hrown clay. The house pad area was probed with a y, inch diameter soil probe and appeared firm at the time of our site visit. Moistnre content tests were taken at various locations throughout the house pad. The moisrure contents ranged from 29 to 35 percent. Based on previous testing performed on the soil type, the moisture content test taken is acceptable for this type of potentially expansive soil. The contractor then placed up to 12 inches of 5 inch open aggregate fill and 4 inches of crushed aggregate, granular fill over the house pad area to achieve final grade and compacted the material. A proofroll of the compacted granular fill was performed using a loaded dump truck. No deflection was ohserved within the house pad area at the time of our site visit. The crushed aggregate, granular fill visually appeared to be well compacted at the time of our site visit. Based upon our observations, the house pad subgrade appears to have been constructed in general accordance with industry standards for this type of construction. If you have any questions regarding this report, please feel free to contact us at 746-9649. Respectfully Submitted, PROFESSIONAL SERVICE INDUSTRIES, INC. ~~ Brian Currier Staff Engineer OO-OO'5f?-O( Professional Service Industries, Inc.' 1040A Shelley 51.' Springfield, OR 97477' Phone 541/746-9649' Fax 541/746-7163