Field Report 20161536.pdfFIELD REPORT
NELSON
Project:
Kollet Deck Underpinning
GEOTECHNICAL
Client:
Grant Kollet
ASSOCIATES, INC
Location:
622 7 h Avenue South
Edmonds, WA
17311 - 135b Ave_ NE #A-500
Weather:
Clear, 40's
Woodinville, WA 98072
Purpose of
(425) 486-1669 FAX 481-2510
Visit:
Construction Monitoring
3LO 201(o % 6 3 &
File No.: 1026218
Date: 2/10/18
Report No: 01
Page 1 of 2
By: DPN
We visited the site today at the request of Howard Clark with Helical Supply LLC. on behalf of the
client Grant Kollet to observe the installation of the pin piles for the Kollet Deck Underpinning project
located at 622 7"' Avenue South in Edmonds, Washington.
Upon arrival to the site, we met with the underpinning crew members. The pin piles consisted of 2-inch,
schedule 80, galvanized steel cut into lengths of 5.3 feet. We watched as the pin piles were driven with a
140-pound hammer to a refusal criterion of one inch or less of vertical movement in sixty seconds of
continuous driving. Out of three planned piles, all three were installed today. The depths to refusal and
pile number are listed in the table below. The depths are measured from subgrade.
Pin Pile Number Depth (Feet)
_ 1 19.2
2 20.0
3 19.5
Pin pile locations can be found on the attached Site Plan.
Our findings and conclusions are based on specific observations made while on site. It is our opinion
that the pin piles we observed today were installed in general accordance with the project plans and
should support the planned loads.
Attachment: Site Plan
Distribution:
Signed:
Daniel P. Nelson