Plans (19) rn ST aol7 - 0o0 83. ! 5S() �/Q,
1r4
LOT211, 212, 213, 214, AND 215
HUB AND TACK CERTIFICATION
NE do SE 1,/4 SEC, 6, T 2 S, R 1 W, W#d,
CITY OF T1GARD, WASHINGTON COUNTY, OREGON
SURVEYED MARCH 31, 2017
PREPARED FOR ,,s'
POLYGON NORTHWEST COMPANY �''` *off'
109 E. 13TH ST.
VANCOUVER, WA. 9866(} LOT °' 1
1 210 - 14k \ N %
\ * 1072:89'
t�6a` L 27.10.
\ _. .�" LOT4,t
y�' 20.-75' t 211 151: R•1072.89'
s, 6' PUBLIC UTIUTY \ 44 11. \
1I=15.34'
EASEMENT
e 2G� \44 LOT ,5p' R=1072.139'
R1t3p1.54' 212 i„s*sN1%4 L=15.33'
L2125 s 006 1 ��
.a t 2 . LOT
213 TI�
� to R=1GfJL54' 1� cs�
'�, ' ?3 L 01.50' 1 tg' R=10?2.89` .2
Ivo t 2a 1 1 « L=15.33'
1 y l 1 LOT '
R-1001.50' 1 214_0* -11+c�1 r\
=15.33' zo , \1 t+y9 R=1 072.89' t .�3 g2
2� L=27.16'
FACT RoO1.5�3' \ 1
N L�15.33' R=1001.50' LOT `"",� 1
u , 2g L=2401' 215 .r'' ,15.62'
t PROFESSIONALRED1 ad 1
LANDSURVEYOR �fl$i: \ ,,,,• �,.r,�. r 1v
r
_I $ t.i �\
JULY 9,2002 -'
......._e ..........,
TRAVIS G.JANfEN , .,-
--" TI?ACT
X51 i"' 0
8 RENEWS'•
6/30/2017 - r-�
I, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE
SURVEYOR IN THE STATEOF OREGON, HEREBY CER11FY THAT 0 10 20
S I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS lI1N IIIM ��
2: TO THE FOUNDATION ENVELOPE FOR LOT 211, 212, 213, 214, 1 INCH= 20 FEET
AND 215 OF THE PLAT OF `RIVER TERRACE NORTHWEST".
DRAM N BY JAP DATE: 3/31/17
Eu1EWE e : ICJ DATE: 4/3/17PACIFICCOMMUNITY DESIGN
piANNING ENGINEERING_S1 ING
PROJECT NO.: 395-037 9
MIDDESIGN FIELD REPORT
Page 1 of 1
GDl Project PolY9on-130-05 Prepared By, Daniel Stai
Project Name,: River Terrace Northwest Date: 4/7/17
Scholls Ferry RRad.and RoyRogers ogers Report#: 166
Location; . ._.._ , . .
Arrival: 1 235 Departure: 1320
Weather: ; Cloudy, 50's Permit#: TRA
Site Visit Requested::By 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 pavement
molllaboada
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 36 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 r4 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
This repot presents opinions fanned as a result of our observation of activities relating to geoted+nlal engineering or We rely to comply with the plans and
spedfatlons throughout the duration of the project impactive of the presence of our rep esentrtM.Our work does not supervision or• lacrthe contractor's employees
or agents. °orbit,'Is not responsible for site safety Na fieldreport is a DRAFT representation of our bald•, .;and s The report can only be
considered Sinai upon review of the Geopeslgn prcieatnwger,as indicated byInitials In the section.. 7p
Signature; ..001(
15575 SW Sequoia Parkway,Suite 100 I Portland,OR 97224 I Off 503.968.8787 1 Fax 503.968.3068