Report GEODESIGN. FIELD REPORT
Page 1 of 1
CD! Project: Polygon-129-03 Prepared By: Erika Ellison
Project Name: River Terrace East Date: 1/21/19
Location: SW Scholls Ferry&Roy Rogers,Bvrtn. Report#: 275
Arrival 1345 Departure 1430
Weather: Clear, 40's Permit#: TBD
Site Visit Requested By: Angela(Polygon) Met With (on site): Angela(phone)
Purpose: Observation of Lot 154& 155 subgrade
Outstanding Issues: I FR252B(7/10)-Vertical cut at base of retaining walls on lot 119 a, 26*PARTIALLY
RESOLVED FR274*
} FR275 (1/21/19)-soft subgrade lots 154&155
Lot 154 Subarade
I observed subgrade to consist of brown silt fill with varying amounts of gravel. I used a Y2"diameter steel
foundation probe to evaluate consistency of the subgrade. Resistance to penetration indicated generally stiff to very
stiff material.The slope of the lot on the east side probed soft(see area indicated on attached site plan). We
recommend over-excavating this slope to stiff subgrade material (approx. 1')and backfilling with crushed rock.
Lot 155 Subgrade
I observed subgrade to consist of brown silt fill with varying amounts of gravel. Resistance to penetration indicated
medium stiff material, however material was saturated and soft underfoot.We recommend over-excavating Lot 155
by approx. 6"and backfilling with crushed rock ensuring that it is dense and well-keyed.
Conclusion
Based on observations, it is our opinion that subgrade for Lots 154& 155, provided recommendations are
implemented, is being prepared in general accordance with our geotechnical recommendations.
Distribution:
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 contractor to comply wits 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 c. tractor,the contractor's employees
or agents:Our firm is not responsible for site safety.This field report is a DRAFT representation of our field observation Ing and preliminary recrsnsmend•• report'can only be
considered final upon review of the GeoDesign project manager,as indicated try initials in the"Reviewed BY section.
A.Signature: ,iw+
9450 SW Commerce Circle,Suite 300 I Wilsonville,OR 97070 1503.968.8787 I www.geodesigninc.com
/PI sr 2orb-ocas9 . . (26m0 so 16StkAvc-
1-- "RIVER TERRACE EAsr
LOT 154
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 DECEMBER 6, 2018
PREPARED FOR: LOT
POLYGON NORTHWEST COMPANY 155
703 BROADWAY ST., SUITE 510
VANCOUVER, WA, 98660 -1-,
go
7545' 1 i 589.58'43"E 106.08'
----....._
, 2315
i I
I I
1 I
0.1 1 0
0
ch a
r--i r--
c•.4 1 4,73*-0.1
I LOT J-1
g
< si 154 1.1
ic pi
01 1 I 26.52' li• 0
r.
.°2 a j 0
.0
,...: > (n :z
U < I I I
.tu
o = I
.v. I-
41 u)
4=w (.0 -.1r...____
= 25'
w 26,92,
-----ai.
0) C.0 61 S89'58'43"E t 105.72'
N5.
2II I.)
a ui
...r.
8 6' PUBLIC UTILITY
C REGISTERED .'4‘ EASEMENT
PROFESSIONAL
(.)
,-- LAND SURVEYOR
=
U)
LOT.., LOT
OREGON 753
0..'" JULY 9,2002
.5: TRAVIS C.JANSEN
C;
0
z ' 57751
6`0 RENEWS:6/3012019
a
g I, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE
o SURVEYOR IN THE STATE OF OREGON, HEREBY CERTIFY THAT 20 0 10 20
cl I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS 62%-tr1
5' TO THE FOUNDATION ENVELOPE FOR LOT 154 OF THE PLAT 1 INCH = 20 FEET
:TS OF "RIVER TERRACE EAST".
us
'..": DRAWN BY: FAA D ATE::12/06/18,
16: PACIFIC COMMUNITY DESIGN
REVIEWED BY: T2 DATE:12/06/18
Z PLANNING - ENGINEERING - SURVEYING
PROJECT NO.; 395-041 (503) 941-9484
-r�oZcvs -}.-�0% I'm '? + - (2 -.Ab -X0A(Sci 7'-
01
. ... r. �.• O .. Y? ca -.
nor-sr 'ON 3713 t. os�zwis i70.7 No�ax��seM � � .�� sz'ar+Sa'ivn Lr�ro raoudn3r�"
1.111.33H5 33s
f ....,..,,._ ..,,...,.... 50.91-31-153 ._
cow rots
g( V-11.1.331-15 335
P 4� j
t.11.1_33145�s
t:t'
mrm.nsaru, € P i
[N!/YSa 3Prinloaa MG ' � I u. ` ( °' v & N w xt w £ a w E —,,,,..-E
ilan,rf 3tR1 Jos
awn. uazoora
fasrua,m : � ' -
1./IN -artsa�t
i.
E } "'. 3
f
• rY. "1.
i
areal Jan� �
l
WOONWAYLP € i
�'
I „, • , i . , ,.. itilr..; ‘ '; , .
rr j
e
1
I. - _: 1 S
I
_
Iii _
SIRE > a ra y t x "
666 -
_ :wns. d n/y*p„ nrv.
Wit ,
..ocoffiosxuei
111111d i — .
i -
1
16a0lS...04F aiV'432H3CalS?MQi k4%'3eF#i s 51
C f}} 73LON -_""'>.a M1"3WL[8ES A!
-fr� i4 .k ^ ^'a ..-
a w xae:
� w��
S M;" t
b _7 A 1,,,,:i
c®- 621 _uQ Q