SI REPORT 2021-07-20 - Alobaidi Residence - GEO430165OTTO ROSENAU & ASSOCIATES, INC.
Geotechnical Engineering, Construction Inspection & Materials Testing
GEOTECHNICAL INSPECTION REPORT
Report Number: 430165
Description: Pin Piling Installation
Project: Alobaidi Residence Permit Number: BLD2021-0428
Address: 18416 Olympic View Drive, Edmonds, WA Job Number: 21-0528
Client: RK Builders, LLC (Robert Kirkman LLC) Client Address: 14050 SE 10t" Street, Bellevue, WA
Inspector Remarks
and Date
Scott Hoobler, Arrived onsite as requested to observe the installation of 2-inch diameter steel, Schedule 80, ASTM
PE ASME, pipe piles for new deck located at the southwest corner of the existing residence. Six (6) piles
And were driven to refusal depth. Refusal is defined as one (1) inch of penetration in sixty (60) seconds of
Chris Smith continuous driving using a 140-pound pneumatic Rhino hammer. Listed below are the pile locations
07/20/2021 (based on the approved project plans), the refusal depths (in feet and inches), and the final driving
rate. The refusal depth is measured from bottom of footing elevation.
Pin Pile Location
Refusal Depth (feet-
inches)
Final Driving Rate
Driven to Refusal
P1**
14'
'/2 inch per minute
Yes
P2**
13'-8"
'/2 inch per minute
Yes
P3
13'-6"
'/2 inch per minute
Yes
P4
18'
'/2 inch per minute
Yes
P5**
12'-3"
t/4 inch per minute
Yes
P6**
16'-4"
t/4 inch per minute
Yes
*Denotes: Battered piles at approximate inclination of 1 H:5V (horizontal to vertical)
The installation of the pin piles was done in accordance with the project plans.
Copies to:
Owner Contractor
Architect Building Dept. Technical Responsibility:
Engineer Scott Hoobler, Geotechnical Engineer
This report applies only to the items tested or reported and is the exclusive property of Otto Rosenau & Associates, Inc. Reproduction of this report,
except in full, without written permission from our firm is strictly prohibited.
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