Report 02/15/2005 17:04 5035988705 GEOFACIFIC ENG INC PAGE 01
/UlSia -ate
/ so 2 si 6- re.e ',.Lot*
e
..Eg9inei:ynp Inc _ :i;
Real -World Geotechnical Solutions
Investigation • Design • Construction Support
February 15, 2005
Project No. 03 -5183
Attention; Andy
Venture Properties, Inc.
4230 Galewood Street, Suite 100
Lake t(swego. Oregon 87035
Fax No, 503- 670.9099
RE: 301L ENGINEER'S REVIEW OF FOUNDATION EXCAVATION SUBGRADE
LOTS 37 AND 80 SUMMIT RIDGE
TIGARD, OREGON
References;
1, GeoPacific Engineering inc., Geotechnical Investigation, Summit Ridge Development, Tigard, Oregon, dated May 12,
2003.
• 2. Geul'eidnc engineering ino., Soli and Wall Engineer's Summary at Conclusion of Earthwork, Summit Ridge Development
- Phase 1, Tigard, Oregon. Revised January 21, 2004 (should state 2005),
Ceorecific Engineer, Jim imbrle, visited the site today to review the foundation excavation subgrade. The
observed native soils are stiff, native clayey silt and some very stiff fill on Lot 37. Some mucking may be
required if the subgrade is left exposed to wet weather for a long duration, howovor the current subgrade is
Based On our observations, it is our opinion that the current foundation subgrade is adequate for spread
foundation support to a maximum allowable bearing pressure of 1,500 psf. Minimum reinforcement has been
recornmanded in the above Rofcronce 2, The foundations are sufficiently setback from the slopes and rockery
walls.
Our work sccrpa pertains to a geotechnical engineer's foundation excavation review only and the conditions
existing and exposed at the time of our site visit. No deck footing, patio, or other appurtenant structure
subgrades were observed. Our work was performed to thw current local standards of practice. No other
warranty is herein expressed or Implied. If you have any questions, please call.
Sincerely,
GeoPacific Engineering, Inc. aret
ms`s te,eI Ne4-� �^�/0
te
I
4 3 , � 1
t/ ,.,.
OREGON
James D. imbrie. P.l:., C. ,C;. 44 '• 23. 1c
Geotechnical Engineer �� FS p, 11419°