Plans 9�e/fir
;o�
���t�� / N 8827'45" W 113.48' t 1-----Th
Gil' 0N) Ah of
J• Cj y / 11' PUBLIC UTILITY PUBLIC BICYCLE
7 f >s- / EASEMENT ACCESS EASEMENT
3' PUBLIC V �f /
SIDEWALK 'n
EASEMENT oN 'C,� // j p
U <0
41$
b6•
48 , 3 p.2� a io.00' $ 20.00' h
�� h ,
10.00' ;,
29.6'
-- 10.0'
()%_a70/ 7- -:vim *,04
o I- 11)
Cri -0
k
0
�N�' N
to
ES
rsi
----- 10.0' O
W
t 4) 40.00' y (i)
29.6
w
O
•
ZS
Qt O N u'-,,).5
'
' '45 O
V N .
• Z N
•
/ i 'ir.'i i
o
mi- \\Nt
4- N 8871'4r W 79.66'
SIGNED ON: j0-/j- Z cj 7
REGISTERED
PROFESSIONAL
"- LAND SURVEYOR
< N >
Y , _.
N0VEM FG9P 2007
JAMES U Og BROWN
L
RENEWS: DECEMBER 31, 2017
CLIENT: MISSION HMS NW STAKEOUT ,I
ORIG.DATE: 9-20-17 LOT 6, MISSION MEADOWS CENTERLINE CONCEPTS
LAND SURVEYING,INC.
DRAWN BY: SEC
CITY OF TIGARD, WASHINGTON COUNTY,OREGON 19376 MOLAL'+AVE-. SUITE 120
OREGON an. OREGON 97045
SHEET No. 7 OF 7
SCALE ls ' PHONE 503.650.0188 FAX 503.650.0189}
Plotted.: 10/12/2017— 8:56am, M:\BUILDER SERVICES\Stokeout Drawing\LOT 6, MISSION MEADOWS\dwg\STAKEOUT.dwg, Layout: Layoutl
GeoP ; L
INEE=Tom
Real-World Geotechnical Solutions
•Investigation
•Design
•Construction Support
October 10, 2017
Project No. 17-4481
Kurt Dalbey
Mission Homes NW, LLC
PO Box 1689
Lake Oswego, OR 97035
FOUNDATION SUBGRADE REVIEW
LOT 6 MISSION MEADOWS
TIGARD,OREGON
GeoPacific Engineering Inc. visited the site to review the single-family home foundation subgrade at
the above referenced lot. In our opinion, the observed subgrade is generally adequate for support to
an allowable bearing pressure of 1,500 psf.
The expected maximum anticipated total and differential footing movements (generally from soil
expansion and/or settlement) are 1 inch and 3/4 inch, respectively, over a span of 20 feet. At the time
of our site visit, the excavations were complete, between 0.5 to 1 foot in depth, which exposed dry,
medium stiff, native clayey-silt and stiff engineered fill. These materials probed 1/2 to 4 inches and
are considered adequate to support the planned foundation loads. Footing-to-slope or footing-to-
wall setbacks appeared adequate.
Lots 2 and 5 had large roots that needed to be removed. They may require compacted rock
backfill in the removal area
Due to relatively impervious soils encountered throughout the site, all foundations should incorporate
appropriate drainage measures in accordance with the International Residential Code. Adequate
crawlspace drainage is not something that geotechnical consultants can verify; the purpose of our
visit is for observations of foundation bearing conditions only.
Care should be taken to avoid saturation or disturbance of footing subgrade soils during and after
excavation. We observed some placement of crushed aggregate to protect the subgrade from wet
weather. If footing bearing soils become saturated or disturbed, any softened soil or slough should
be removed and replaced with crushed aggregate or additional concrete. In general, footing
excavations should be cleaned such that no more than about 1/2 inch of loose soils is present prior to
pouring concrete.
14835 SW 72nd Avenue Tel(503)598-8445
Portland,Oregon 97224 Fax{503)941-9281
GeoPacific Engineering, Inc.
Job No. 17-4481
Lot 6 Mission Meadows
Our work scope pertains to a geotechnical engineer's foundation excavation review only and the
conditions existing and exposed at the time of our site visit. Within the limitations of scope, schedule
and budget, GeoPacific attempted to execute these services in accordance with generally accepted
professional principles and practices in the fields of geotechnical engineering and engineering
geology at the time the report was prepared. No warranty, express or implied, is made. If you have
any questions, please call.
Sincerely,
GeoPacific Engineering,.Inc.
1474
v OREGO
ES a Os
EXPIRES:06/30/20j1
James D. Imbrie, G.E.
Geotechnical Engineer