Plans (95) /11 Sr P-o/7 — 0 c,c)76 l&? `-(Ce SC& Virc
'RIVER TERRACE NORTHWEST' \ "
LOT 206, 207, 208, 209 AND 210
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 MARCH 14, 2017
PREPARED FOR: -4 \
\
POLYGON NORTHWEST COMPANY TRACT \ .eP:
109 E. 13TH ST. L % 7.50' PUBUC UTILITY
VANCOUVER, WA. 98660 \ EASEMENT
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T ' 210 ..., , \
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C. REGISTERED
Ira ' PROFESSIONAL IIt \ 0:1- ),,*"
LAND SURVEYOR
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LOT
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OREGON \ \
f JULY 9,2002 \ '
TRAVIS C.JANSEN \ AIL
57751 LOT
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212 FA
. ., RENEWS:6/30/2017
P I, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE
ISURVEYOR IN THE STATE OF OREGON, HEREBY CERTIFY THAT 20 0 10 20
c.. I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS 11111iiill.iiiilaltiii=11111111111.1
THE FOUNDATION ENVELOPE FOR LOT 206, 207, 208, 209 1 INCH =20 FEET
...-_ TO
g AND 210 OF THE PLAT OF "RIVER TERRACE NORTHWEST".
,.,
-}. DRAWN BY: T2 DATE: 3/20/17
TCJ DATE:
st.7. ‘ PACIFIC COMMUNITY DESIGN
REVIEWED 8Y. 3/20/17
. PLANNING -ENGINEERING- SURVEYING
4 PROJECT NO.: 395-037
(503)941-9484
...)
INIIDESIGNN FIELD REPORT
Page 1of1
GDI Project: Polygon-130-05 Prepared By: Jim Guenther
Project Name: River Terrace Northwest Date: 3/31/17
Location: Scholls Ferry Road and Roy Rogers _Report#: 165
Arrival: 1000 Departure: 1030
Weather, Cloudy, 50's Permit#: TBA
Site Visit Requested By: Sam (Polygon) Met With (on site): Sam
Purpose: Evaluate Subgrade
Outstanding Issues: FR 51 (01/14/16) Lot 122 to 123 retaining wall
FR-136(9/14) Low density pavement
i* a 'A, e -
Upon arrival, I spoke on the phone with Sam and was directed to the area indicated on attached site plan for the
foundation subgrade for building 12, lot 206-210.When I arrived the crew had finished excavating the building to
subgrade and had placed between 1"-6"of crushed rock over the subgrade (generally thicker on the west half of the
building and thinner on the east half).The subgrade appeared to step down approximately 1'-2' between lots 207
and 208,and again between lots 209 and 210.The rock was generally loose except for the thicker area on the west
half. Ponding and saturated rock was observed on the surface of lot 210. We recommended that the water be
drained or pumped out, and the material be allowed to dry prior to compaction of the rock in this area. Based on the
excavation walls, I observed the subgrade to primarily consist of brown silt with sand and trace organics (native). I
used a Y2"diameter steel foundation probe to evaluate the relative consistency of the foundation subgrade. Based on
the probing,the subgrade appeared to be generally very stiff to medium stiff.There was an approximately 4'x4'
area that appeared to be soft based on probing in lot 209 (see attached site plan).We recommended that the soft
area be over excavated approximately 1' and the material be replaced with crushed rock and compacted.
Based on our observation and probing, the building foundation subgrade where observed today and indicated on
the attached site plan, has been prepared in general accordance with our geotechnical recommendations.
Distribution: 1
Attachments:Site Plan(1);
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•. •'to comply with the plans and
specifications throughout the duration of the project irrespective of the presence of our representatives Our work does not include su.. • or direction of nira tor.the contractor's employees
or agents.Our firm Is not responsible for site safety.This field report is a DRAFT representation of our field obsery+ . ,"'"ti"`, ream • Si The report can only be
considered final upon review of the GeoDesign project manager;as indicated by initials in the"Reviewed By`section iips
r
Signature: '
15575 SW Sequoia Parkway,Suite 100 I Portland,OR 97224 I Off 503.968.8787 I Fax 503.968.3068
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A . roxiniate location of evaluated subs rade