Plans (16) rr, ST 6i7 -- oao go
'RIVER TERRACE NORTHWEST"
LOT 21 1, 212, 213,, 214, AND 215
---., HUB AND TACK CERTIFICATION
NE QC SE1.f4SEC. 6. T2 S. R1 W. W.M.
CITY OF TIGARD, WASHINGTON CCS;Nre, OREGON
SURVEYED MARCH 31, 2017
PREPARED FOR:, \\,.....,..,--".--
POLYGON NORTHWEST COMPANY\\ 4\,•
109 E. 13TH ST.
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VANCOUVER. WA. 98660 LOT co
210 ` iN, ' \ ota
'.`� p8 " �,, 1072.'8
9'
,.- , ,' L 27.10
1 _r -c. LOT '14A
ti'I' 203�' ` 211 n, \ R=1072.89'
L=15.34'
2 6' PUBUCU TY \�' 0.14 �1� \ �4 .1i
esMEN1 9.y$ \1 LOT R=1072.89'
- R=1+t 01.501 212 * 1 * 1 La15.33
tiii L=21.85' ii‘• � " 4.4
z�
U l
cr ' R=1 001.:"./ 213 1 -+
yVv L=15.34' ,�.... 1 ., '�' x,°`` 89 Al,2.
1 \ LOT 1'
Rawl 001.5o' \ 214 ,► . 1'
�„, L=15.33' a , l� .esE;#19
R 't Q72.8fl l .,-.5.61
R1 lue \ QtN.5Q' Z 1 L=27.16'
TRACT 1
N L=15.33' R=1001.50' LOT ``,
REGISTER 2G
2$ L=24.01` 215 f,.» i 15 62.
t
PROFESSIONAL 1`,, ,
1 . ,5Q'
LAS SUI EYOR 6%.. 1 �,,�'' 'O1 " .- 1`
, Y9.2002 .-'' 1
TRAVIS C.JANSEN
-� TRACT 1
RENEWS:X017 r-
-- 0
I, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE
SURVEYOR IN. THE STATE OF OREGON, HEREBY CERTIFY THAT 20 0 10 20
I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS
TO THE FOUNDATION ENVELOPE FOR LOT 211, 212, 213, 214, 1 INCH= 20 FEET
AND 215 OF THE PLAT OF "RIVER TERRACE NORTHWEST".
DRAV*" BY: JAP DATE: 3/31/17
REVIEWEDBY. ICJ; DATE. 4/3/17 PACIFIC COMMUNITY DESIGN
2NG -ENGINEERING-SURVEYING
PROJECT NO.: 395-037
(503) 941-9484
MIDESIGNI FIELD REPORT
,Page 1 of 1
GEN Project:_ Polygon-130-05 Prepared By; Daniel Stan
_
•
Project Name:. River Terrace Northwest Date: 4/7/17
_.. ,..
Location;. Schoiis Ferry Road.and Roy Rogers Report#: 166
Arrival: 1235 Departure; 1320
Weather: Cloudy,50's Permit#: TBA
Site Visit Requested l Sam(Polygon) Met With(on site): Gary(Strauss)
Purpose: : Evaluate Subgrade of Building 13(Lots 211 to 215)
Outstanding Issues: FR 51 (01/14/16)Lot 122 to 123 retaining wall
FR-136(9/14) Low density pment
MON 13 Minn&
Upon arrival,I observed the excavator was still in the process of cutting subgrade to finish grade for.building 13.
Subgrade soil appeared to consist of brown silt. Contractor informed me that areas covered by crushed rock were at
footing subgrade elevation. About half of the site was cut to grade with the remaining needing an additional 12
inches or less of excavation, except the southernmost half(see site plan for approximate locations).
I used a s inch diameter steel"T'probe to evaluate relative consistency of the silt subgrade. Subgrade was
generally stiff with probe penetrations under full body weight under 12 inches. I observed a wet area in the
subgrade that had been covered by a few inches of 1 '6 inch minus crushed rock. Gary said the water is from seepage
and is not in footing area. Area generally probed medium stiff with penetrations deeper than 12 inches,which
is acceptable for the building slab. Gary said he would remove any soft soil and replace with crushed
rock if the area worsens. Shawn Dimke called and discussed the seepage with Sam on 4/11/17. We understand the seepage is very slow and
the area will receive-18-inches of crushed rock fill for the slab.
Gary indicated that some areas of the site were below subgrade elevation and that he had placed 1 to 2 feet of
crushed rock to fill areas on the north side of the building pad. Crushed rock areas were generally not dense and I
recommended compaction before concrete forms area placed. Gary said that he would roll the areas using a Bornag
BW 120 AD-3 that is onsite.
I also recommended that any areas of exposed subgrade at finish grade be covered with crushed rock and"keyed in"
with a small plate compactor to prevent disturbance from rain.
Based on our observations, Building 13 subgrade evaluated today is being prepared in general accordance with
project requirements and our geotechnical recommendations.
Distribution:
Attachments:Site Plan (1);
Reviewed by: SMD
This report presents opinions formed as a result of our observation of activities relating to geotedmkal engineering or `We relyto comply with the plans and
spdpudons tltroughoutthe duration of the project Irrespective of the presence of our representable,Our work does notSupervision or• °• -.. the contractors employees
or agents.Our flan Is not respontible for site safety,This Said report is a DRAFT representation of our field•• • iVir
and ' The report can only be
considered Mal upon inview of the GeoDesign project manager,as Indicated by initials In tile'Reviewed By'section.:
Signature : 401.• .
15575 SW Sequoia Parkway,Suite 100 I Portland,OR 97224 I Off 503.968.8787 1 Fax 503.968.3068
pot_tc,(7m- 1-. cPs ti /7//7-- F-1/4. 166
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