SI Field Report+2.6.2023_9.57.19_AM+3352660SFA Design Group, LLC
sfa
April 6, 2022,
City of Edmonds, WA
Building Permit
ATTN: Special Inspections
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
RE: Project Name: Miller Residence Underpinning
Project No.: MFR21-201
Permit#: BLD2022-0133
Address: 8822 216th St SW, Edmonds, WA 98133
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 (9) SafeBase 288 push piers with Safebase-LD foundation bracket,
verifying pier locations, installation depth, installation pressure, bracket type, pier type, pier diameter and
thickness. To confirm pier 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, 4/4/2022 and 4/5/2022.
All anchors 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,
Mohamed El Katrani, EIT
SFA Design Group, LLC
Cc: Olga Ticot, Matvey Foundation Repair, Inc
Reviewed by: Jeff Fitch, PE, P.Eng, SFA Design Group, LLC
5FA Design 6r-oup, LLC
STRUCTURAL t CIVIL I GEOTECHNICAL I LAND USE PLANNING
9020 SW Washington Square Drive, Suite S05, Portland, Oregon 97223
1813 Rutan Drive, Suite C, Livermore, Calffomla 94551
1912 S 146th Street, SeaMe, WastriVon 98168
707 County Line Road, Unit B. Palmer Lake, CO 80133
p:503-641-8311 www.sfadg.com
FIELD INSTALLATION LOG
Project Name:
Contractor:
Site Address:
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Project Foreman:
Install Date:
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Permit Number:
Inspector Arrival:
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Contractor Arrival:
Inspector Name:
4 Jurisdiction:���
Location
; Part Description
Pier OD, in
s Pier Wall
Thickness, in
Pier Segment
Length, ft
Installation
Pressure, psi
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Non -Compliance Items:
Inspector Signatu 7
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5FA Design Group, LLr
STRUCTURAL I CML I GEOTECHN1CAL I LAND USE PLANNING
MO SW YYastskigton Square Drive, Stfe SOS, Portland, Oregon 9M3
1813 Rutan Drive, Sutte C, Uvennom CaAfomla 9MI
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1912 S 146ti Skeet, Seattle, Washbigion 9816S
707 C+wntlr une Road, UnFt% Palmer Lake, CO 80133
p:5O3.641-8f11 wwwsfadgZ�ai ;
.com
LOAD TEST LOG
Project Name: Contractor 6
Site Address: I
Project Foreman:
Test Date:` Permit Number. 1 J
Inspector Name:> Jurisdiction:
F,
C
a.
ID
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Pier Tested:
Working Load, kips: '7� �' j
/ Test Load, kips:
i min: 0
2 min:
3 min:
4 min:
5 min:
6 min:
C
10 min:
Piet Tested:
Working Load, kips:
Test Load, kips:
1 min:
2 min:
4
3 min-
4 min:
5 min: 6)
6 min:
10 min:
Test Pressure, psi. -
Total Creep, in:
15 min:
40 min:
20 min:
50 min:
30 min:
60 min:
Test Pressure, psi:
`
Total Creep, in:
�
15 min:
40 min:
20 min:
50 min:
30 min:
60 min:
Continuous special inspection is required during installation per 2015 IBC section 1810.4.12. Load testing shall be performed in
accordance with ASTM Method D1143 (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.
Items:
I Load test performed utilizes a hydraulic load cylindc
with an effective bore diameter of 3.5" which
equates to an operating hydraulic area of 9.62 in2.
f Pier Test Pressure (psi)= [Design Wadi X 1.51
9.62in2
I Inspector