HomeMy WebLinkAboutPermit Field Test & Inspection Report 2004-7-25
Jul-25-2004 06:25pm From-K & A En81neerln" Inc
+5<11-684-9358
T-663 P 006/007 F-840
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DC Ie A Engineering, Inc.
P.O. Box 23624, Eugene, OR 974102
521 Market St., Suite 8, Eugene, OR 97402
(641) 614.9399 Voice
(641) H4.13B FAX
englnfering
duly 25, 2004
Scott Jordan
3520 Celeste Way
Eugene, OR 97408
Sublect: Foundation Soils
244 S. 67li' Ct.
City of Springfield Permit No, COM2004.00770
PrG.104.04
PURPOSE AND SCOPE
As requsste~, K & A Engineering, Inc. has completed a limited evaluation of solis at the subject site of the
construction of a single-famUy residence on lot 1 S of the 81. LucIa Park subdivision. The purpose of this
evaluatron was to determine the suitability of the site for construction of the proposed conventionally framed
structures on cast.in.place concrete spread footings and to make recommendations for preparation of the
foundation pad.
FOUNDATION PREPARATION
The site Is located on a flat lot south of Main Street off of a new extension of Aster Street. Tllere were no signs
or slgnlflcant unstable areas (tension cracks, depressions, scarps) at the time of our inspectIon or dUring
excavation.
Salls at the site consisted of 1.0 to 1.5.f8et 01 loose brown organic SIL T5 (topsoil) over 1.5 to 2.5.feet of
brown, moderately dense, damp, ,moderately plastic SILT over tan/orange-stained, very stiff to hard, very
weathered tuffaceous SILTSTONE. The brown, moderately plastic slits are sJlghUy to moderately expansive.
Groundwater was not encoun1:ered In the excavation.
Preparation of the foundation pads was made according to our on-sIte recommendations, and consisted of
stripping the organic surface soils and silts to undisturbed brown silts or siltstone to a depth ranging from 2 to
3.5-fest
Approximately 12 to 24-inohes of select granular fill consisting of 3-lnch dense.graded quarry rock was placed
In 12.lnch (maximum) lifts and compacted using a steel-wheeled vibratory roller ootll no further deformation
was evIdent durir.g compaction at the edges of the roller.
Jul-25-2C04 06:25pm From-K & A EnSlneerlns, Inc
+541-684-9358
T-663 P 007/007 F-840
..
K Bt A Engineering, Inc.
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SUMMARY AND RECOMMENDATIONS
The foundation pad, as prepared, Is suitable to support the cast-In-place concrete spread footings without
significant heaving but Wltll good bearing capacity (1,500 pounds per square foot allowable bearing capacity).
We recommend aCc8ptanCftI of the foundlltion pad, as prepared, by the CIty of Springfield Building Official.
LIMITATIONS OF THIS REPORT
This report has been prepared for the exclusive use of Scott Jordan and his design consultants and construction
agents for the subject proposed structure,
This geotechnical Investigation, analysis, and recommendations meet the standards of care of competent
geotechmcal engineers providing similar services at the time these services were provided. We do not warrant
or guarantee these recommendations, site surtace, or subsurface conditions. Exploration test holes mdlcate
soli conditions only at specific locations (I.e, the test hole locations) to the depths penetrated. They do not
necessarily reflect solVrock materials or groundwater conol~ons that exist between or beyond exploration
locations or limits.
The soope of our services does not include construction safety precautions, techniques, sequences, or
procedures, except as specifically recommended in this report. Our services should not be interpreted as an
envIronmental assessment of site conditions.
Thank you for the opportunity to be of service, Please call us If you have questions or need fur.her assistance.
Sincerely,
Project 104.04
Client Scott Jordao
244 $, 6~ Ct., Springfield, OR
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July 25, 2004