Foundation repair SI Report 20509 78th Pl WNORTHWEST
ENGINEERING GROUP
Mr. Evan Nelson June 10, 2022
20509 7811 PI W
Edmonds, WA, 98026
Re: Foundation Inspection
Permit Number: BLD2022-0131
20509 78'h PI W
Edmonds, WA
Dear Mr. Nelson,
A pile inspection was performed at your residence on May 27, 2022 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 January 27, 2022 had been
performed. The underpinning work was completed by Ram Jack West on May 27, 2022. The
inspection was strictly visual and limited to documents provided by Ram Jack West.
A total of four (4) 2 7/8" helical piles were installed in accordance with the Foundation & Elevation
Assessment Plan. Based on the pile installation log provided, the pile embedment depths ranged
from 6 to 8 feet. The reported minimum installation torque was 7,245 ft-lb. Based on this torque
and a factor of safety of 2, the allowable capacity is 32.6 kips, which exceeds the 12 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 lateral braced in accordance with section 1810.2.2
of the 2015 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 I can be of further assistance or should you have any questions about this report,
please do not hesitate to contact me.
Sincerely,
Sean Morrison, E.I.T.
Engineering Technician
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Darin Willis, P.E.
Managing Principal
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