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. Real -World Geotechnical Solutions
Investigation • Design • Construction support
September 11, 2006
/07 - anal
Project No. 05 -9263
Attention: Andy Thomas
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Venture Properties
4230 Galewood Street, Ste. 100
Lake Oswego, Oregon 97035
Fax No. (503) 387 -7617
• RE: FOUNDATION EXCAVATION
LOTS 16 AND 17 DAKOTA GLEN
TIGARD, OREGON
On September 8, 2006, GeoPacific engineer, Jim Imbrie, was on site to observe foundation excavation for
lots 16 and 17. Subgrade predominantly consists of stiff native silt soil; however the front of Lot 16 exposed a
little drain rock from an old septic line. The concrete pipe had been crushed during excavation and only a few
inches of drain rock remained. The old drain line does not appear to pose a problem for foundation support.
The observed subgrade is adequate for spread foundation support to a maximum allowable bearing
pressure of 1,500 psf. 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 Venture Properties only and should not be relied upon by third
parties without consulting GeoPacific. If you have any questions, please call.
• Please call If you have any questions.
Sincerely,
GeoPacific Engineering, Inc.
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James D. Imbrie, P.E., C. . v 23. �9�k• e`o• 3 .
Geotechnical Engineer '�fS D. IM® 1� b �
P. .
7312 SW Durham Road Tel (503) 5984445
Portland, Oregon 97224 Fax (503) 5984705