Report (8) GODES IGN`.-' FIELD REPORT
Shawn Page 2 of 3
retaining walls stepping the grade down. After speaking with Seery Dimke (GeoDesign), it is our opinion that there is
a low risk in pouring the slab as it is. It is recommended that prior to any loading on the slab the adjacent slope be
filled to an average slope of 2H:1V (horizontal: vertical) or flatter.
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Observed Damage GeoGrid- Lot 72 Retaining Wal
While onsite, crews directed me to a section of geogrid that had been damaged during trench construction. Crews
had damaged the top layer of the geogrid.The section damaged is approximately 10' in length.The exposed wall
height in the location is approximately 5' and the trench behind ranges from approximately 2.5' to 4' depth from
east to west. There appears to be approximately 2.5' to 3' of undamaged geogrid and backfill directly adjacent to
the wall (see images below). GeoDesign will confirm the numbers, but it is our preliminary opinion that damaged
geogrid will need to be removed and replaced back to its original condition.
Distribution:
Attachments: Site Plan (2), Photo(5)
Reviewed by: smD
This report presents opinions formed as a result of our observation of activities relating to geotechnical engineering or environmental services. We rely on the contractor to comply with the plans and
specifications throughout the duration of the project irrespective of the presence of our representative. Our work does not indude supervision or direction of the contractor,the contractor's employees
or agents,Ow-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.
Signature: ��,s,,
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Slope in Lot 69 from base of slope
15575 SW Sequoia Parkway,Suite 100 I Portland,OR 97224 I Off 503.968.8787 I fax 503.968.3068
GEODES IGNLi FIELD REPORT
Page 3 of 3
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"POLYGON AT WEST RIVER TERRACE" q
LOTS 129-133 L. T 1 2
HUB AND TACK CERTIFICATION �^ i f p
NE & SE 1/4 SEC. 6, T 2 S, R 1 W, W.M. �s/ zo`� _ 0O 3J o
CITY OF TIGARD, WASHINGTON COUNTY, OREGON
SURVEYED SEPTEMBER 28, 2016
— -" — — PREPARED FOR:
POLYGON NORTHWEST COMPANY I
109 E. 13TH ST.
SW JEAN LOUSE ROAD VANCOUVER, WA. 98660
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