HomeMy WebLinkAbout20160674E002 Bethany Corner 2022-04-22 FR 034.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.
2022-04-22 Bethany Corner 20160674E002 034
Location Municipality AESI Project Manager AESI Field Rep
10955 SE 165th St. Renton Matthew A. Miller, P.E. Scott R. Hannah, L.G., L.E.G.
Permit No. Client/Owner Attn Requested By
B22000536 Mark Seek (Tiger Mountain Homes) Mark Seek Contractor
Engineer/Architect General Contractor Earthwork Contractor Weather
D.R. Strong Tiger Mountain Homes / Mark Tiger Mountain Sunny, 55 deg
THE FOLLOWING WAS NOTED:
Lot 7 ADU Building Foundation Subgrade, Permit #B22000536:
AESI was onsite at 2:30pm today to observe the finished backfill for the Lot 7, ADU building foundation. Upon our arrival,
we met with Mark Seek of Tiger Mountain Homes. Earlier this week on 4/19 we observed the over-excavated area that
exposed suitably firm, native soil 3 to 6 feet deep below the proposed foundation (Field Report 33). Like the other
excavations, the backfill extended outside the proposed footing lines enough to provide additional width of backfill
materials to meet a minimum 1/2H:1V (Horizontal:Vertical) inclination. The contractor also planned to compact the 2 to
4- inch concrete recycle (spalls) via excavator bucket in 2- to 3-foot-thick lifts. A large stockpile of spalls had been staged
next to the excavation. AESI did not witness the spall placement or compaction.
We observed the surface of the compacted 1-1/4” minus concrete recycle to be in a firm and unyielding condition, based
on our observations visually and with a ½ inch diameter, steel soil probe. Indentations left by a hand-operated jumping
jack were observed on the surface and according to the contractor they placed the top portion of the material in two lifts
of no more than 12 inches thick before compacting each lift. Footing corner stakes were not installed.
In our opinion, the compacted concrete recycled materials placed over the firm, native soil will provide suitable
foundation support of 1,500 psf, per plan.
Lot 7 ADU Foundation SG looking W.