2018.05.30 Iguchi Final Summary Letter.pdfC
sfa i
May 3 0, 2018
SFA Elo�ign GrOLIP, LLE:
STRUCTURAL I CIVIL I GEOTECHNICAL I LAND USE PLANNING
9020 SW Washington Square Drive, Suite 505, Portland, Oregon 97223
1813 Rutan Drive, Suite C, Livermore, California 94551
1912 S 146th Street, Seattle, Washington 98168
p: 503-641-8311 www.sfadg.com
Special Inspection
FINAL SUMMARY REPORT
City of Edmonds
Development Services Department
ATTN: Special Inspections
RE: Project Name: Iguchi Residence Underpinning
Project No.: MFR18-007
Permit No.: BLD2018-0417
Address: 19230 94th Avenue W, Edmonds, WA 98020
Dear Building Inspection Division:
This letter serves to certify that in accordance with Chapter 17 of the International Building Code requirements
outlined in the General Structural Notes on S 1. 1 of the approved permit drawings, SFA Design Group, LLC has
performed special inspection as detailed below.
The inspector observed the installation of (4) FSI Pin Piles, verifying pile locations, installation depth, drive,
bracket type, pile type, pile diameter and thickness. To confirm pile capacity, load tests were observed following
installation and the results were within approved allowances. Please see attached field installation logs and load
test data dated, 05/22/2018. All piles were installed per the intent of the design and any installation deviations
were reviewed and approved by this office with no outstanding non-compliance items.
Our inspection and testing services do not constitute a warranty or guarantee of any type and were provided and
intended to help reduce the risk of construction defects, deficiencies or omissions that may arise during and after
construction. It is the contractor's responsibility to perform their work in accordance with the approved
construction documents. All inspections and tests were performed and reported according to the requirements of
the City Building Regulations and these Administrative Rules and, to the best of my knowledge, the work was in
conformance with the applicable workmanship provisions of the State Building Code and Standards.
Sincerely,
Dusti Huddleston
Engineer Technician — SFA Design Group
Cc: Tara Todd, Matvey Foundation Repair
Reviewed by: Jeff Fitch, PE, P.Eng, SFA Design Group, LLC
MFA Manign 6MLAP. LLE
STRUCTURAL I CIVIL I LAND USE PLANNING I SURVEYING
Portland, Oregon 97223 1 Livermore, CA 94551
P: (503) 641-8311 F: (503) 643-7905
-1 www.sfadg.com
fa 9020 SW Washington Square Dr., Suite 505/1813 Rutan Dr, Suite C
Mf
FIELD INSTALLATION LOG
Project Name:
Contractor:
Site Address:
0
Project Foreman:
Install Date:
572,1 A9
Contractor Arrival:
Inspector Arrival:
Inspector Departure:
Permit Number:
�BLb 2101
Inspector Name:
C3 W(Awrr""
Jurisdiction:
(,/j
Location
Part Description
Pier CID, in
Pier Wall
Thickness, in
Pier Segmeht
Length, ft
Installation
Pressure, psi
57
VQ coil-, (n-
-Fs(
26�
(Z
Non -Compliance Items:
Inspector Signature:
Rev 2016.01.25
SFA 13liamigra 153111-0111-111p, LLE
STRUCTURAL I CIVIL I LAND USE PLANNING I SURVEYING
9020 SW Washington Square Dr., Suite 50 1813 Rutan Dr, Suite C
Portland, Oregon 97223 Y Livermore, CA 94551
P: (503) 641-8311 F: (503) 643-7905
www.sfadg.com
LOAD TEST LOG
Project Name:
Contractor:
Site Address:
Project Foreman:
Test Date:
Ll te)
Permit Number:
Inspector Name:
Jurisdiction:
Pier Tested:
Test Pressure, psi:
Working Load, kips:
Total Creep, in:
Test Load, kips:
1 min: 5 min: 15 min:
40 min:
2 min: 6 min: 20 min:
50 min:
a)
3 min: 10 min: 30 min:
60 min:
4 min:
Pier Tested: Z'_
Test Pressure, psi:
Working Load, kips:
Total Creep, in:
Test Load, kips:
1 min: 5 min: 15 min:
40 min:
2 min: 6 min: 20 min:
50 min:
CL
3 min: 10 min: 30 min:
60 min:
4 min:
Continuous special inspection is required during installation per 2012 IBC section 1810.4.12. Load testing shall be performed in
accordance with ASTM Method D1 143 (Quick Method). 20 percent of piers shall be tested to 150 percent of design load. Load
testing creep acceptance criteria shall be no greater than 0.04 inches within a 10 minute period. If movement is observed greater
than 0.04 inches within the 10 minute period the load test shall be held for an additional 50 minutes, the pier is to be deepened
and re -tested, or the pier is to be abandoned and replaced with a new pier.
If the load test is to be held the pier movements shall
be measured at 15, 20, 30, 40, 50, and 60 minutes. The creep versus the
logarithm of time shall be plotted. If the creep rate is
less than 0.080 inches between 6 and 60 minutes, the load test shall be considered successful.
Non -Compliance Items:
Note:
Load test performed utilizes a hydraulic load cylinder
with an effective bore diameter of 3.5" which
equates to an operating hydraulic area of 9.62 in 2.
Pier Test Pressure (psi)= [Design Load] X 1.5
9.62in 2
Inspector Signature:
Rev 2013.01.31
SFA Iliesign Bruzip. LLr_
STRUCTURAL I CIVIL I LAND USE PLANNING I SURVEYING
Portland, Oregon 97223 Livermore, CA 94551
P: (503) 641-8311 F: (503) 643-7905
-1 www.sfadg.com
9020 SW Washington Square Dr., Suite 505/1813 Rutan Dr, Suite C
LOAD TEST LOG
Project Name:
�4
Contractor:
Foreman:
Site Address:
qqO&CAl"OZC�0Jp�Project
Test Date:
Permit Number:
Inspector Name:
Jurisdiction:
Pier Tested: Test Pressure, psi:
Working Load, kips: Total Creep, in:
Test Load, kips:
1 min: 01A___
5 min: 15 min: 40 min:
2 min: 6 min: 20 min: 50 min:
L) 3 min: 10 min: 30 min: 60 min:
4 min:
Pier Tested: Test Pressure, psi:
Working Load, kips: Total Creep, in:
Test Load, kips:
1 min: 5 min: 15 min: 40 min:
2 min: 6 min: 20 min: 50 min:
Q
3 min: 10 min: 30 min: 60 min:
4 min:
Continuous special inspection is required during installation per 2012 IBC section 1810.4.12. Load testing shall be performed in
accordance with ASTM Method D1 143 (Quick Method). 20 percent of piers shall be tested to 150 percent of design load. Load
testing creep acceptance criteria shall be no greater than 0.04 inches within a 10 minute period. If movement is observed greater
than 0.04 inches within the 10 minute period the load test shall be held for an additional 50 minutes, the pier is to be deepened
and re -tested, or the pier is to be abandoned and replaced with a new pier. If the load test is to be held the pier movements shall
be measured at 15, 20, 30, 40, 50, and 60 minutes. The creep versus the logarithm of time shall be plotted. If the creep rate is
less than 0.080 inches between 6 and 60 minutes, the load test shall be considered successful.
Non -Compliance Items: Note:
I Load test performed utilizes a hydraulic load cylinder
i with an effective bore diameter of 3.5" which
equates to an operating hydraulic area of 9.62 in 2
Pier Test Pressure (psi)= [Design Load] X 1.5
9.62in2
Inspector Signature:
Rev 2013.01.31