Report (86) "RIVER TERRACE EAST
LOT 178
HUB AND TACK CERTIFICATION
NE & SE 1/4 SEC. 6, T 2 S. R 1 W, W.M.
CITY OF TIGARD, WASHINGTON COUNTY, OREGON
SURVEYED FEBRUARY 6, 2018
PREPARED FOR:
POLYGON NORTHWEST COMPANY
703 BROADWAY ST., SUITE 510
VANCOUVER, WA. 98660
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25' I LOT
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, 179 8' PUBLIC UT1ITY }
6 PUBLIC UTiUTY
EASEMENT EASEMENT CE
REGIS ,. .� _'.__
PROFESSIONAL
LAND SURVEYOR
SW FRIENDLY LANE
x OREGON °3
JULY 9,2002
TRAVIS C.JANSEN
67751
RENEWS:6130/2019 n.... — _. ED .
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II, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND 20 SCALE 100 20.
SURVEYOR IN THE STATE OF OREGON, HEREBY CERTIFY THAT
I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS
S TO THE FOUNDATION ENVELOPE FOR LOT 178 OF THE PLAT 1 INCH 20 FEET
OF "RIVER TERRACE EAST".
i DRAWN BY: T2 DATE: 2/28/18 PACIFIC COMMUNITY DESIGN
• REVIEWED BY: TCJ DATE:2/28/18 PLANING - ENGINEERING -SURVEYING
PROJECT NO.: 395-041
(503) 941- _
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•
A
EDESIGNz FIELD REPORT
Page 1 of 2
GDI Protect: Polygon-129-03 Prepared By: Bret Moskal
Project Name River Terrace East Date: 3/13/18
Location: SW Scholls Ferry&Roy Rogers,Bvrtn. Report#: 212
Arrival 0815; 1150 Departure: 0840; 1215
Weather: Rain, 50's Permit#: TBD
Site Visit Requested By Ken (Polygon) Met With (on site): Ken, CCS crew
Purpose: Observe soft spot repair lots 177-179
Outstanding Issues: Proof roll road and curb base rock and repair as needed before paving
FR-58 (12/06) Decommission temporary storm and sewer lines through Tract E
FR-177 soft fill from slope cut in lots 153, 154 and 155
FR-20842/2.8) y, . •` .: ' ..: *Resolved 3/13/18*
excavating
During the day, I observed CCS crew in the process of repai44ng soft subgrade, noted in field report 208 and 209 per
our geotechnical recommendations, utilizing an Air Knife system (see field report 208 and 209 for details).
Recommended that east side perimeter footings be additional excavated by approx. 1' to provide 5-feet of
horizontal offset between the edge of the footing and free face of the slope. Based on probe resistance,we
recommended additional excavations of soft subgrade areas ranging from 6"to 12"BGS today(see site plan and
below for details). After additional excavation, I re-evaluated the subgrade and observed the subgrade to generally
be stiff to medium stiff.
Lot 179
Additional excavation observed today;
• 7'x2'x6"
• 15'x2'xl0"
Lot 178
Additional excavation observed today;
• 13'x2'x12"
• 10'x2'x6"
• 20'x2'x12"
Lot 177
Additional excavation observed today; which caves into
• 16'x2'xi 2" overexcavated footing
• 10'x2'x8" subgrades
• 20'x2'x6"
I observed that due to wet weather,there was free standing water n the surface of the footing subgrade.
Recommend footings be de-watered and any saturated/loose soil a removed f before pouring
footing. Recommend that time be limited in which footing subgrade is left exposed.
Based on our observations and probing, it is our opinion that subgrade observed today(contingent on following
recommendations noted above),where observed today and indicated on attached site plan, have been prepared in
general accordance with our geotechnical recommendations.
9450 SW Commerce Circle,Suite 300 I Wilsonville,OR 97070 1503.968.8787 I www.geodesigninc.com
EO'' ESIGN= FIELD REPORT
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Page 2 of 2
Distribution:
Attachments: Site Plan (1); Picture (1)
Reviewed by: SMD
oro ronin.ntai sonricos.we rely on the contractor to comply with the plans and
Jtris report hour ons ratio are proje our tku a e pi t7t os tellatt gesent Ou wor i irchxtfo Vision or direction of the contractor,the contractor's employees
hpeati t urfir Is nor r r durstb efar the pts lrros$ ,-, the t o of rr sentatotnn aridt smrnondatio e.report can only be
agents Sur firm is nett for l'eSsite salty.'flus f re of In ix a t�fIlm raptesentatl®n axlf lust hold observations,testing,
considered final upon review of the GeoDesign•pto tct manager,as indicated by initials ht the"Revleviod
Signature. •✓',of sectioti - .+:+i
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Example of free standing water on footing subgrade
9450 SW Commerce Circle,Suite 300 I Wilsonville,OR 97070 1503.968.8787 I www.geodesigninc.com