BLD2023-0601_Applicant_Response_6.29.2023_8.02.09_AM_3638921NORTHWEST
ENGINEERING GROUP
Mr. Steve Abdo June 28, 2023
22022 92nd Ave W
Edmonds. WA
Re: Foundation Inspection
Permit Number: CRA2023-0092
22022 921d Ave W
Edmonds, WA
Dear Mr. Abdo.
A final pile inspection was performed by Northwest Engineering Group. The purpose of the pile
inspection was to verify the foundation underpinning work recommended in the Foundation & Elevation
Assessment Plan on May 16, 2023 had been performed. The underpinning work was completed by
Ram Jack West on June 16, 2022. Northwest Engineering Group reviewed the drive log and project
information provided by Ram Jack West.
A total of eight (8) 2 7/8" helical piles were installed. Due To obstructions encountered in the field, Pile
03 was shifted from its location shown on the Foundation and Elevation Assessment Plan. Refer to
the attached As -Built Plan (SK-1 R) for pile location. This change was approved by engineering. Based
on the pile installation log provided, the pile embedment depths ranged from 7 to 10 feet. The reported
minimum installation torque was 7,245 ft-lb. Based on this torque and a factor of safety of 2.5, the
allowable capacity is 26.0 kips, which exceeds the 12.0 kips required.
The underpinning piles appear to have been properly installed in accordance with a method typical of
the industry. In addition, the piles are laterally braced in accordance with section 1810.2.2 of the 2018
IBC and compliant with section 1810.2.1.
This concludes this report. Observations made in this report pertain to the condition of the residence
on the date of the inspection which is subject to change. No foundation warranty is expressed or
implied by this report other than the warranty provided by the foundation repair contractor. If we can
be of further assistance or should you have any questions about this report, please do not hesitate to
contact us.
Sincerely,
r d' Y01r,, Atv
Andrew Van Meter, E.I.T.
Engineering Technician
OPT OF WA o�J`
0 5748V3
ERE \�
FSS NA\_
Darin Willis, P.E.
Managing Principal
P.O. Box 10393/ Eugene, OR, 97440 / 541.393.7363 / WWW.NWENGGROUP.COM
ADDITION
(PIER & BEAM)
WINDOW
(TYP)
—
CHIPPED
FOUNDATION
---------
I
/s" GRADE
I
BEAM CRACK
LIVING AREA
I W / 2ND STORY
8
I (SLAB -ON -GRADE)
WOODEN FENCE
I
o
-/4"
LIVING AREA
& BEAM)
I
(PIER
7
/" GRADE
001,
�/„ I
BEAM CRACK
0"
06
2-CAR GARAGE
W / 2ND STORY
I (SLAB -ON -GRADE)
„ ®5 �
=3
y6" GRADE
ENTRY
®
o
BEAM CRACK
2-CAR GARAGE
PONDING
EXTENT OF
(SLAB -ON -GRADE)
4
WATER (TYP)
2ND STORY
-3" 2 y4„
-6 y2"
� 03 -'
BRICK FACADE
(TYP)
®01 ®02 `-
10'-0"
�N L. Wl,
WASy7No%
n F y
57483
T GISE \�
FSS A',
1'-0 OBSTRUCTION
(E) TREE STUMP
AS -BUILT PLAN
LEGEND NORTH
SLAB ELEVATIONS TAKEN BY NW ENG GROUP ON 05/03/2023
® - - - - HELICAL STEEL PILE (12.0 KIP CAPACITY)
a - - - - HELICAL STEEL PILE THROUGH
ASPHALT / CONCRETE (12.0 KIP CAPACITY)
- - - - L6x6x3/8" x 3'-0" STEEL ANGLE
- - - - L6x6x3/4" x 4'-0" STEEL ANGLE
."""""""""" - - - - C7x11.5 x 10'-0" STEEL CHANNEL (INSTALLED ON EXTERIOR)