HomeMy WebLinkAbout20160674E002 Bethany Corner 2021-03-25 FR 002.pdf
Kirkland | Tacoma | Mount Vernon
425-827-7701| www.aesgeo.com
Date Mailed:
Principal / PM: Matthew A. Miller, P.E.
This document is considered a DRAFT until signed or initialed by an AESI Principal or Project Manager
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v.7.20
FIELD REPORT
Date Project Name Project No. Report No.
2021-03-25 Bethany Corner 20160674E002 002
Location Municipality AESI Project Manager AESI Field Rep
16451 111th Ave SE Renton
Matthew A. Miller, P.E. Alex Ybarra, Staff
Geologist
Permit No. Client/Owner Attn Requested By
Mark Seek (Tiger Mountain Homes) Mark Seek Client
Engineer/Architect General Contractor Grading Contractor Weather
D.R. Strong Tiger Mountain Homes / Mark Fury Site Works P. Cloudy 50’s
THE FOLLOWING WAS NOTED:
Associated Earth Sciences, Inc. (AESI) arrived on site part-time in order to observed earthwork activities. Upon arrival we
met with representatives of Fury Site Works
AESI was onsite in order to collect soil samples for proctor analysis. Two samples were collected one of native gray silty
sand with gravel (till) and another imported gravelly sand with some silt.
Sewer Trench Backfill:
Prior to our arrival Fury had backfilled for sewer trench connecting to EX SSMH-1381-1 (Fig 1). Were informed that trench
backfill was approximately 6-8’ thick comprised of imported gravelly sand for the bottom portion of trench backfill and
covered in 1’ thick of site derived silty sand with gravel. We were informed that backfill was placed in multiple lifts and
compacted utilizing a vibratory ho-pac. We were also informed that top of trench was still approximately 4-5’ below
finished grade. AESI completed a compaction test on the surface of trench backfill (5’ below final grade). Test appeared to
within suitable range for moisture conditions yet low for dry density value expected with silty sand with gravel. AESI
recommended to Fury to re-compact the area utilizing a vibratory ho-pac. Fury confirmed and informed that they will re-
compact the area tomorrow (3/26/2021).
AESI departed the site in the PM and will return upon request.
Date Project Name Project No. Report No.
2021-03-25 Bethany Corner 20160674E002 002
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FIELD REPORT
Figure 1: Red outlined area shows the approximate location of sewer trench backfill observed.
Date Project Name Project No. Report No.
2021-03-25 Bethany Corner 20160674E002 002
Page 3 of 3
FIELD REPORT
Figure 1: Grading Plan with Observed Area
N
Area excavated 5-7 feet to firm and unyielding
subgrade. Contractor plans to place 1 foot of
imported recycled concrete spalls.