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RITTENHOUSE-ZEMAN & ASSOC.
GEOLOGY & SOILS ENGINEERING
8050 S.W.rARRUS DRIVE•BEAVERTON,OkEGON 97 005•(503)644-9141
13837 N.E.8th STREET•B LLEVUE,WASHINGTON 98005•(206) 746-801C
May 23 1983 W-2797
Severn Properties
2101 Wembley Park Road
Lake Oswego, Or. 97034
Attr;: Kevin Poling
Subject: Fxcavation Inspection l -J
Lot 29, Windmill Subdivision <� � �
Tigard, Oregon +'
(ientlemen:
We visited the site on May 21 , 1983, to make a visual reconnaissance of the
foundation excavation.
The sLbsurface zonditions were as we anticipated in our letter o'F May 13, 1983.
Near the entryway area, water ! egan flr-ling in at the base of the fiI . soft-
ening the ground in that area. We felt that the two-inch minus material u�,d
for structural backfill woulc, not properly stabilize 0is area and recomnendcd
using four-inch qua-ry rock in the lower 12 to lit inches of the fill . This
was done and the -emai,Aer of the filling proceeded without incident. We feel
that the work was performed in a conscientious and workmanlike manner and
foresee no difficulties with the foundation.
During a second visit, on May 20, 1983, we approved the use of a continuous,
steel-reinforced, footing on the existing fill for supporting interior floor
loads. Each strip footinq wit ; support three(-) interior piers.
If y,)u have any questions or desire further inform tion, please contact the
und-rsigned.
Respectfully submitted,
RITTENNOJSE-ZEMAN R A,, rTATES
Richard W. Rinne, C.F.G. Terry N.� _
4 4 3
BUILDIIJG PERMIT APPLICATION TIGARD
THE UNDERSIGNED HEREBY APPLIES FOR A PERMIT FOR TAE WORK HEREIN INDICATED BUILDER PHONE 635—`t-
OR AS SHOWN AND APPROVED IN THE ACCr)MPANYING PLANS AND SPECIFI%,ATIOWS. OWNER PHONE
LOT
OWNER r ;teVarn<rOB ADDRESS V Kat11C lne Wit`• - -------
- (.•00 ARCHITECT
ENGINEER PterC sarcla
N�elvin i'nlirt:°. 2101 'ta�hley V., Rd. DESIGNER Y r
BUILDER _ ADDRESS � — — — — — ---
ST9UCTURE I NEW REMODEL _ F1 ADDITION_--Cj REPAIR ❑ PENEWAL U FIREDAMAGE ❑ DEMOLITION
F RES!DENCE ❑ COMM C; �l jOATIONAL Ll GOV'T_D RELIGIOUS ❑ PATIO ❑ CARPORT ❑ GARAGE Cl STORAGE ❑ SLAB❑ FENCE
OCCUPANCY R-1 LAND USE ZONE_ R"'' HLDG.TYPE 5 ;_FIRE ZONE__._.. PLAN CHECK BY -11 EAT
Construct sinile f8r.11y d'0011i"v w, Att'Rcn" naroslc? ---
�� goo correction aliw1 .t avtaclled, tooils report rrq'd 3 bedrooms
2 bntlls
SEWED PERMIT# M'25 4 7 {
OCC.LOAD FLOOR LOAD �' HEIGHT 1 _NO_.STORIES-- i AREA !332 N0.BED^ODMS VALUE �'
! 20
_BUE
BUILDING D_PARS MEN_-i. � � SETBACKS FRONT — '1,11 _ rILA FCONINTHE BUILDING CODE
DI RIGHT r3inE
Permit 32 a• THIS PERMIT IS ISSU, .j SUPJFCI TOTE REGULATIONS CONTAINED ZONING
2U REGULATIONS AND ALL APPLICABLE CODES AND ORDINANCES, AND IT IS HEREBY AGREED THAT THE
{ •
Plan Check _ WORK WILL BE DONE IN ACf'ORDANCE WITH THE PLANS AND SPECIFICATIONS AND IN COMPLIANCE
WITH ALL APPLICABLE CODES AND ORDINANCES. THE ISSUANCE OF THIS PERMIT DOES NOT WAIVE
Sub-total ^41.217 RESTRICTIVE COVENANTS. CONTRACTOR AND SUB CONTRACTons 10 HAVE CURRE14T CITY BUSINESS
- 11. 12
LICENSE.SEPARATE PERMITS REQUIRED FOR SEWER,PLUMBING AND HEATING.
State Tax
Total ' 1 10060� APPLICANTO AGEN
B �u+ dwtl Receipt No. u.4 �, S
Approved — ADDRESS
DATE INSP.1 TYPE INSPECTION PENIARKS PLUMBING I DATE
fContract
Permit No.
—I _:
flough-in
71f C, :Zo'
Fixture
Fin.
HEATING
Contractor 777-3,961
Permit No.
2 f07 16,& .4 -2Y-0.3
Gas or Oil
Rough-in
Final
9EW9R
Final
DRIVEWAY
Final
Storm Drainage
(Rain Drain)Final
Sidewalk
Curb&Street Final
Appioech
TEMPORARY CERTIFICATE OCCUPANCY
—ERTIFICATE OCCUPANCY Final
Landscaping
Zoning Final
RITTENHOUSE-Z_EMAN & ASSOC.
GEOLOGY& SOILS ENGINEERING
8050 S.W.CIRRUS DRIVE•BEAVERTON,OREGON 97005•(503)644-9141
11837 N.E.8th STREET BELLEVUE,WASHINGTON 98005•(2G6) 746-8020
May 13, 1983 W-2797
12 310 540 ku a�vN Q Ssf.
Severn Properties LIA Zq -
2101 Wembley Park Road
Lake Oswego, Or. 97034
Attn: Kevin Poling
Subject: Residential Site Inspection
Lot 29, Windmill Subdivision
Dear Kevin:
In accordance with your verbal authorization on May 12, 1983 we have per-
formed a surface reconnaissance at the subject site. The site is scheduled
for construction of a single-story, wood-frame residence.
The site is generally level with no evidence of surface instability. The
west side of the site borders on a small creek. It appears that the site
has been covered with a thin layer of fill that varies from four to five
feet thick at the west property line to less than one foot at the east pro-
perty line. Fill soils appear to consist of sandy silt with occasional de-
bris. We anticipate that the old topsoil layer was not removed prior to
filling.
Despite several days of dry weather preceeding our visit, we observed stand-
ing water at the toe of existing fills. This appears to be representative
of the regional groundwater table.
CONCLUSIONS AND RECOMMENDATIONS
With Lroper foundation prgpa .uu the site is suitable for conventional
residential construction. Since the existing fills were installed in an
uncontrolled manner and may contain organics or other debris, we do not
I
II
Severn Properties W-2797
May 13, 1983 Page 2
recommend supporting column or wall loads on the existing fills. Foundation
excavat;ons should extend through the fill as well as through any underly nnc
topsoil layer. We anticipate that some foundation excavations will encounter
groundwater, which can cause detrimental softening of excavation bottoms .
In areas where groundwater or soft saturated soils are encountered, we re-
commend that a minimum one foot thick ead of cam acted crushed rock be in-
stalled beneath footings. The rock pad should extend six inches (horizontally)
beyond all footing sides. Interior pad foundations that support only floor
loads may be established directly err existing fills. Although some settlement
of pad foundations may occur, it should be within normal expectations for
residential construction and can be easily corrected by shi"riinQ.
As we discussed, we understand that we will be contacted to inspect footing
excavations for suitability before the crushes' rock n's a i .__..u.. �
_----M.•.-�-M�--. pad i s i n s t,�11 ed.
If you have any questions or desire further information, please contact the
undersigned.
Respectfully submitted,
RITTENHOusF-ZEMAN R ASSOCIATFS
i \ 81.0
Terry Nr��--- ` OREGON
RITTENHOUSE-ZEMAN & ASSOC.
FOUNDATION AND SOILS ENGINEERING,GEOLOGY