Report (738) 6'0
Crlson Geotechnical Main Office Salem Office Bend Office
P.O. Box 23814 4060 Hudson Ave., NE P.O. Box 7918
A Division of Carlson Testing, Inc. Tigard, Oregon 97281 Salem, OR 97301 Bend, OR 97708
Geotechnical Consulting Phone (503) 684-3460 Phone (503) 589 -1252 Phone (541) 330 -9155
Construction Inspection and Related Tests FAX (503) 670 -9147 FAX (503) 589 -1309 FAX (541) 330.9163
February 22, 2001
FILE COpy
Mr. Bill Crocker
Lowes H.I.W.
1530 Faraday Avenue #125
Carlsbad, Califomia 92005
Geotechnical Letter of Compliance
Lowe's H.I.W. l
Tigard, Oregon
CGT Project G0001561
Permit Number BUP98 -00520
Carlson Geotechnical has served as geotechnical engineer -of- record for the Lowe's H.I.W.
project in Tigard, Oregon. As geotechnical engineer -of- record we conducted construction
observations and testing during earthwork activities that included both part and full -time visits
on an on -call and as needed basis during most of the year 2000. Our observations and testing
were documented in our daily field reports, copies of which were forwarded to members of the
design and construction team and City of Tigard personnel. Copies of our reports are available
in our office, if requested. A summary of our field density tests is attached.
Carlson Geotechnical specifically observed the following items during construction:
• Site stripping
• Grading activities (placement and compaction of structural fill)
• Trench backfill and compaction
• Footing subgrade observations
• Subsurface drainage systems
Carlson Geotechnical did not provide geotechnical design or construction observations for
Keystone® and rockery walls built at the site. This work was completed by others.
Based on our observations, as documented in our field reports, and to the best or our
knowledge, within our scope of work, the above earthwork components were completed in
general accordance with the project plans, specifications, and the recommendations of our
geotechnical report for the project dated June 9, 1997.
iii n
Lowes H.I.W.
Tigard, Oregon
February 22, 2001
Please contact us if you have any questions.
Sincerely,
CARLSON GEOTECHNICAL
f\ 7>56&
ston San ino Timothy W. Blackwood, P.E.
otechnical Staff Geotechnical Department Manager
Attachments: Summary of In -Place Density Tests
Distribution: Lowes H.I.W. — Bill Crocker — Fax: 760 - 918 -9112
City of Tigard Building Dept — Hap Watkins — Fax: 503 - 624 -3681
Continental Dirt Contractors Inc — John Harper — Fax: 253 -939 -5765
Sconzo Hallstrom Architects - Jim Bryan — Fax: 425 -455 -9351
Baugh Construction — Mike Doran — Fax: 503 - 968 -0484
JUB Engineers — Darral Moore — Fax: 509 - 736 -0790
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