Site Field ReportGroup Northwest, Inc.
Geotedinical Engineers, Geologists, &
Environmental Sciertists
DAILY FIELD REPORT
Job # Date Page # Report #
G-5362 1 9/16/2021 1 of 2 1
Project Name & Location
13705 Bel -Red Rd Bellevue, WA 98005 1 Jenkins Addition, 18914 - 94th Ave W, Edmonds, WA
Phone 425-649-8757 Fax 425-649-8758 1 Permit #
BLD2021-0869
Per the request of the contractor, Adam Gaston of GEO Group Northwest visited the subject site twice
on 9/15/21 for geotechnical special inspections. The contractor representative, Mr. Glen Conway,
requested that we check the excavated areas at the southeast corner of the building for footing bearing
and also comment on the condition at proposed slab subgrade areas (SE).
Footing Bearinq Conditions & Slab Sub -grade - SE Work Area
The contractor has excavated at the proposed new perimeter footings subgrade areas at the southeast
corner of the building (excluding column location) including at one location (as shown on pg 2) where
an un-planned footing will be necessary (change order). At the time of our first visit in the morning,
we observed that there were some areas of loose overlvina soils at the excavated footinas subarades.
Based upon probing at the subgrade areas we recommended over -excavation at the apparent
(change order) footing area of up to 1-ft and that all new footing areas be compacted to a firm and
unyielding condition. Upon our return in the afternoon, we verified that over -excavation had
occurred and that compaction was by jumping jack. Based upon probing at the areas "approved"
as shown on page 2 we observed that these footing subgrade areas consist of compacted firm and
unyielding medium dense to dense site soils acceptable for foundation support. Additionally the
currently excavated subgrade areas for the new slab -on -grades at the southeast corner have been
compacted to a firm and unyielding condition acceptable for slab support. We note however, that
there is one area at the proposed perimeter footing where the footing meets the existing footing
(southwest connection point) where we observed loose soils at the subgrade for a width of 1.5-feet
apparently due to the oriainal backfill for the existina buildina foundation. We did recommend over -
excavation and compaction at this area. However, the existing wood framing hangs over this area
preventing compaction. The contractor over -excavated up to 16-inches below the proposed footing
subgrade at this loose soil area but was not able to expose the assumed underlying native competent
soils. We note that the new footing is to have reinforcement dowled/epoxied into existing footing which
may aid the footing in 'bridging' over this loose area. However, the owner/contractor should verify
with the structural engineer that this is sufficient to support the structure and mitigate risks.
Alternatively, the framing may be removed allowing for the loose soils to be further over -excavated,
compacted and approved for spread footing foundation support. Please contact to re -check this area
if and when this is necessarv/readv.
Distribution:
Edmonds, Jenkins, Conway, OG Engineering
JContinued
on next page
EXISTING FTG.
kCTOR LOCATED
)OTING AREA (DASHED)
:NDING CHANGE ORDER FOOTING
[YIELDING
V V 111 V V �7 V 1J V 1\ALli �J (HATCHED AREAS)
NOTE: CONTRACTOR LOCATED APPX.
BASED UPON THE SHEET S3 BY OG ENGINEERING, 6-22-21.