Report •
• Sep. 25. 2007 11:33AM No 2755 • P. 1 , •
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• Geor fie •
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Engineering, Inc
Real -World Geotechnical Solutions
Investigation • Design • Construction Support
September 13, 2007 frl 5 ,T av 7 _ da / CI Z
Project No, 06 -9802
/ 3020 / MQ a/ec es
Windwood Homes, Inc. Cl-
12655 SW North Dakota Street
Tigard, Oregon 97223
Attention: M. Dale Richards - Fax: (503) 590 -7606
FOUNDATION EXCAVATION REVIEW
LOTS 1 AND 9 — MAPLECREST
WASHINGTON COUNTY, OREGON
GeoPacific Engineer, Jim Imbrie, visited the above - mentioned site to review foundation excavations
and subgrade bearing conditions. We understand that the proposed residences are two -story single -
family homes with slab -on -grade garage floors and raised wood floors on the lower level living space.
The excavations mostly exposed very stiff, native, silty clay. The observed subgrade is adequate for
spread foundation support to a maximum allowable bearing pressure of 1,500 psf . Footings should
remain outside of a 1H:1V plane from vertical cuts. No deck footing, patio, or other appurtenant
structure subgrades were observed
Our work scope pertains to a geotechnical engineer's foundation excavation review only and the
conditions existing and exposed at the time of our site visit. No warranty is herein expressed or
implied. This report was prepared for Windwood Development only and should not be relied upon
by third parties without consulting GeoPacific. If you have any questions, please call.
Sincerely,
GeoPacific Engineering, Inc.
(t'iiktO PROFES �GIN4` ip 147AgE � •
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OREGON
23, 09
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EXPIRES: 06-30.201a
James D. Imbrie, P.E.
Geotechnical Engineer
7312 SW Durham Road • Tel (503) 598 -8445
Portland, Oregon 97224 Fax (503) 598 -8705
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