Report (9) -4; PERMIT NO. N\ 2b ,; Ok t
CleanWater Services to
LOT
S
EROSION CONTROL INSPECTION REPORT
DATE 5 INSPECTOR C. t1S e c,cr SUBDIVISION 1`..." 1 L f c e C(es%
OWNER/PERMITEE cb^&-
SITE ADDRESS c"ct, LA.Ic c4 Lr)•.N
APPROVED
FOR THIS SITE TO REMAIN IN COMPLIANCE WITH CLEAN
WATER SERVICES EXISTING RESOLUTION AND ORDER FOR
DURATION OF CONSTRUCTION, THE OWNER/PERMITEE MUST:
• MAINTAIN CLEAN STREET (S) -FREE OF ANY VISIBLE OR MEASURABLE AMOUNT OF DIRT,
GRAVEL OR DEBRIS. GRAVEL ACCESS RAMPS STRICTLY PROHIBITED.
• TO PREVENT TRACKING, RESTRICT ALL CONSTRUCTION VEHICLE TRAFFIC TO GRAVEL
CONSTRUCTION ENTRANCE OR STREET ONLY.
• MAINTAIN ALL EROSION CONTROL MEASURES TO CLEAN WATER SERVICES INSTALLATION
STANDARDS.
• PROVIDE MAINTENANCE OF ANY SEDIMENTATION BARRIERS/FILTERS AT STORM DRAIN
STRUCTURES OR DRAINAGE AREAS WHICH ARE SITE SPECIFIC.
• PROVIDE ADDITIONAL EROSION CONTROL MEASURES AT ANY TIME DURING CONSTRUCTION
WHEN SITE CONDITIONS CHANGE.
• OTHER
NOTE: FAILURE OF THIS SITE TO REMAIN IN COMPLIANCE WITH
CLEAN WATER SERVICES RESOLUTION AND ORDER CAN RESULT IN THE
ISSUANCE OF A CIVIL CITATION, STOP WORK, OR SUSPENSION OF PERMITS AS
DEFINED IN CLEAN WATER SERVICES RESOLUTION AND ORDER 90-63 AS AMENDED.
INSPECTOR L PHONE col c6'-t\ 01S-13
33 2 RTC._ ,
GEDPPCIFIC
Real-World Geotechnical Solutions
Investigation• Design•Construction Support
May 11, 2023
Project No. 16-4108
Stonebridge Job No. 3262
Attention: Andy Thomas
Stonebridge Homes NW LLC
4230 SW Galewood St., Ste. 100 �` Ii ?c 2 7---
Lake Oswego, OR 97035
Fax 503-387-7615 00 1 I
Email Andvc stonebridgehomesnw.com; JimD c(�stonebridgehomesnw.com;
kristendmhholdinqsco.com
FOUNDATION SUBGRADE REVIEW
LOT 95 RIVER TERRACE CROSSING
15094 S.W. FLAT CREEK DRIVE
WASHINGTON COUNTY, OREGON
GeoPacific Engineering Inc. visited the site today to review the single-family home foundation
subgrade at the above address. We understand that the proposed building is a two-story daylight
basement home. In our opinion, the observed subgrade is adequate for support to an allowable
bearing pressure of 1,500 psf.
At the time of our site visit, the excavation was complete, and soils exposed in foundation excavation
consisted of predominantly stiff fill soils at the front that could be probed about 2 to 4 inches with
moderate pressure using a steel "T" bar probe and medium stiff native soils at the rear that probed 6
to 12 inches. 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.
The lot is gently sloped to the south. Footing-to-wall setbacks at the southeast corner of the home
required were located over the geogrid on a 5-foot MSE wall but were outside of a 2H:1 V plane
extending from the blockface.
Due to relatively impervious silty and clayey 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.
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.
14835 SW 72nd Avenue Tel(503)598-8445
Portland,Oregon 97224 Fax(503)941-9281
GEOPACIFIC
Job No. 16-4108
Lot 95 River Terrace Crossing
Sincerely,
GeoPacific Engineering, Inc.
CoL p PRop
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OREGON
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EXPIRES:06I30I20�:
James D. Imbrie, G.E.
Geotechnical Engineer 73
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A r .
FOUNDATION CERTIFICATION
LOT 95 OF "CROSSING AT BULL MOUNTAIN",
CITY OF TIGARD, WASHINGTON COUNTY, OREGON
PREPARED FOR _icocilsue- =t c-4;- J , (Ail 5iz02.7 -60 '/4 I
STONE BRIDGE HOMES NW, LLC
4230 GALEWOOD ST., SUITE 100
LAKE OSWEGO, OR 97035 N SW FLATCREEK LANE
7:1Ia, 7.
N89'55'53"E 52.00' C:c3r
rn - L ...... ..,
PUE PUBLIC UTILITY EASEMENT
o I
{ 20.17' $ 25'
5.83
12.00' 25.0'
N o 200' >
.` o
LOT o g 95 � 8 V
,r 96 W a
§ 1.00'
5.00'z o a
SCALE: 1 =20 FEET 4 6.00' 1.00' -- $
III I 8cn
IIII1 .00' 6.00' 16.00' 8 25.0' .
20 0 4 10 20 i
14 00'
o c 05/12/2023 1 i 6.0'
PUE
REGISTERED LOT LOT S89'55'53"W 67.00'
PROFESSIONAL 93 94
LAND SURVEYOR •
0/;ix_
L OREGON j CURVE TABLE
JANUARY 11, 2005
ROBERT D. RETTIG CURVE RADIUS DELTA LENGTH CHORD
60124LS
RENEWS: 12/31/24 C24 15.00' 90'00'00. 23.56' 545'04'07"E 21.21'
I, ROBERT D. RETTIG, A REGISTERED LOT
PROFESSIONAL LAND SURVEYOR IN THE STATE CROSSING AT BULL MOUNTAIN 95
OF OREGON, HEREBY CERTIFY THAT I HAVE
STAKED THE FOUNDATION FOR LOT 95 OF AKS ENGINEERING & FORESTRY, LLC . GWS
"CROSSING AT BULL MOUNTAIN" WITH 12965 SW HERMAN RD, STE 100SC cHKO: PMR
HUBS AND TACKS ON MAY 12, 2023. TUALATIN, OR 97062 AKS JOB:
P:503.563.6151 F:503.563.6152 aks—eng.comA 9531
DWG:9531CSTK I LOT 95 FC