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G FO[ ESIGN= DRAFT FIELD
REPORT
Pa•e 1 of 3
GDI Project: Polygon-122-04 Prepared By: Bret Moskal
Project Name: Polygon at Bull Mountain Date: 02/14/17
Location: 15402 SW Seine Court, Tigard,
Report#: 139
Oregon
Arrival: 1030 Departure: 1100
Weather: Cloudy, 40's Permit#: MST2016-00025
Site Visit Requested By: Jason (Polygon) Met With (on site): Jason
Purpose: Evaluate Deck footings lots 47&48, Evaluate lot 31 subgrade.
Outstanding Issues: FR 135 -Soft disturbed subgrade surface areas for Lots 29, 30, 32, and 33 *RESOLVED
TODAY*
I arrived on site and met with Jason who directed me to areas observed today.
Lot 47&48 Deck footings
I observed areas of deck footings of lots 47&48 that had been undermined during the process of the excavation for
new footings below preexisting footings. I was informed that crew would be backfilling undermined area with
concrete ting newly formed footing into preexisting deck footing, as well as backfilling preexisting deck footings
ting into continuous footings of the building. We understand that footing can be backfilled in the orientation.
I observed base rock that on site crew had placed in the preparation of concrete backfill of undermined footings. I
was informed that there was approx. 2"of crushed rock on the surface of the footing subgrade. Using a1/2"diameter
steel foundation rod I probed the base rock. Probing indicated loose base rock. I recommended that base rock be
compacted tell rock is well keyed before backfilling.
Lot 31 Subgrade
While on site I observed the subgrade for lot 31. Crew had place approx. 3"of crushed rock the surface of the
subgrade. Using a'/2"diameter steel foundation rod I probe the base rock. Probing indicated area of dense and loose
base rock. I recommended that base-rock be compacted-telt crushed-rock is well keyed.
I observed areas of silt that approx. 6" (or thicker) in depth that fell underneath what is to be a footing. I
recommended that crew remove silt for area before pouring footing.
Based on our observation and probing, in area observed today and indicated on attached site plan, expect areas of
undermined dock footings which are going to be backfill, were prepared in general acrodance with or geotechnical
recommendations.
Distribution:
Attachments: Site Plan (1), Photo(2)
Reviewed by:
This report presents opinions formed as a result of our observation of activities relating to geotechnical engineering or environmental services.We rely on the contracts to comply with the plans and
specifications throughout the duration of the project irrespective of the presence of our representative. Our work does not Include supervision or direction of the contractor,the contractor's employees
or agents.Our firm is not responsible for site safety.This field report is a DRAFT representation of our field observations,testing,and preliminary recommendations.The report can only be
considered final upon review of the GeoDesign project manager,as indicated by Initials In the"Reviewed By'section.
9450 SW Commerce Circle,Suite 300 I Wilsonville,Oregon 97070.1 Off 503.968.8787 1 Fax 503.968.3068
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ODESIGN= FIELD REPORT
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Example of undermined dock footing in Lot 47
9450 SW Commerce Circle,Suite 300 i Wilsonville,Oregon 97070.1 Off 503.968.8787 1 Fax 503.968.3068
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DESIGNS FIELD REPORT
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Example of undermined deck footing In lot 48
9450 SW Commerce Circle,Suite 300 C Wilsonville,Oregon 97070.1 Off 503.968.8787 I Fax 503.968.3068
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