Plans (17) mST2of7 - OCPO 82 6-7 k) YA l//-
At
"RIVER TERRACE NORTHv EST"'
LOT 211, 212213, 214, AND 215
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 31, 2017
PREPARED FOR:
POLYGON NORTHWEST COMPANY \ 4.'s
109 E. 13TH ST.
VANCOUVER, WA. 98660
LOT
210 14054- \ 0.6Z
\ .040 1072.891
\ T'. ►``' " l \ L 27.10
4A1
�. �,,..,..,. LOT \ R=1072.89"
20 \ 211 i, .51 L=15.34'
Xa. 6' Pt181JECASUE.�MENT \ . ' 114 \ '14k• l
, 05
2.0. \ LOT X50' R=1072.89'
R 10CM. 3' 212 ,�,, 1 11, \ L=15.33
L=24.85' 4S, S Sok'
.4' A tp \ t3" \ -4\
,-�,•; '��p��n R L '3,3�. � \ r�g"� R�1t�?289 ‘7.7)‘.44.2,S
f!, 07 \ o13 \ L=15.
\ \
LOT \
-a R-1001.50' \ 214 , '1'1.5
%I, C'. =15.33' \\ , r;2`1 R=1072.89' \ A$.2.41\
2 L=27.16'
TRACT Ra fl01.50' \ \
N L=15.33' \ R=1001.50' LOT "`yl' \
_ L=2401' 215 ••••• i 15.62.
0 02.Ir PROFESSIONAL E REGISTERED 2-- \ ik '
1
LANSURVEYOR, 1\ ' ,so \jt*W 1
ti.I
JULY 9,2032 ,, t-''
r 1
TtVIS C.-JAN1+1.- .-'
57751 --'` . TRACT ifi) \
1 RENEWS:61342017
I. TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE
SURVEYOR IN THE STATE OF OREGON, HEREBY CERTIFY THAT 24 0 10 20
I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETSIIIINIII•�
TO THE FOUNDATION ENVELOPE FOR LOT 211, 212, 213, 214, INCH =20 FEET
AND 215 Of THE PLAT OF "RIVER TERRACE NORTHWEST".
DRAWN BY: JAP DATE: 3/31/17
REVIEWED BY: ICJ._ DATE4_1.,1,4Z,_17
PACIFIC CO P4UNITY DESIGN
•
PROJECT NO •• . 95-037 P�LAI+iNIN�G -ENGINEERING•SllR1fE1(IwG
(503)9414484
DESIGN FIELD REPORT
Page of 1
GM Project: Polygon-130-05 Prepared By Date:
Daniel Stas
4/7/17
Project Name: River Terrace Northwest
^_Location; Scholls FerryRoad.and Roy Rogers Report#:
166
...
Arrivals 1235 Departure: 1320
Cloudy,50's Permit#: TSA
Weather;
Met With(on site): Gary(Strauss)
Site Visit iiested�, Sam(Polygon)
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;pavement
lidisling 13
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 Va 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 Va 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 Bomag
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
We rely� to comply with the Plans and
This report presentsopinions formed as a result of our observation of acuities relating to geotechnical ergineetinq or • or• s employees
tchnI our work does not so the contractor
n▪ s. O rInn is
the duration the safety,
inesibis felthe Pam or our representative.of our field• and The report an only be
or . Our Inn k not responsible for site safety,Tfds field report Is a GRAFT representation
03otede ed final upon meow of the Geooeslgn Prole mom°r.as indicated by Initials in the"Reviewed By'section.
Signature:. - '
15575 SW Sequoia Parkway,Suite 100 1 Portland,OR 97224 I Off 503.968.8787 t Fax 503.968.3068