Sum of Field Reports_BLD20190610_7415 Braemar Dr_20190813.pdfVr
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Description of Activity:
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
7/22/2019
TGG Job #
2025-3
Client: Mirel Sinclair
Contractor: Somerset Gardens
Field Rep: Paul Stoltenberg
Disassembly of Walls, Excavation
Somerset Gardens has been disassembling existing block walls to prepare for geogrid installation. TGG
engineer visited site to verify that excavation was to appropriate depths for geogrid installation according
to plan. Contractor has excavated to geogrid depth on both levels. Exposed soil consists of compacted
crushed rock overlying native silty SAND with gravel. Existing foundation blocks and leveling course appear
to be founded in native medium dense silty SAND as required.
Contractor has installed straw wattles on downslope side of of working area and disturbed soils. TESC
measures appear to be appropriate and functioning adequately. No sediment transport evident on the site.
TGG engineer discussed geogrid placement with contractor and treatment of corner geogrid placement.
Discussed location and discharge point for back of wall drainage collection system. Contractor will contact
TGG when ready for inspection of subdrainage and to verify bearing for new wall section within lowermost
terrace.
Prior to commencing ground disturbance, TGG engineer and contractor met with Building Division inspector
(Milton) and Engineering Division inspector (Jennifer) for preconstruction meeting and erosion control
discussion. Inspectors indicated TGG to provide field reports. Bldg division to see as geogrid placed;
engineering wants to see discharge and spreader pipe, and final erosion. Send field reports to building
division.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Back Wall Subdrainage
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
7/26/2019
TGG Job #
2025-3
Client:
Mirel Sinclair
Contractor:
Somerset Gardens
Field Rep:
Paul Stoltenberg
Description of Activity:
Contractor has installed wall drains in general accordance with approved plans. Drains consisted of 4-inch
PVC perforated pipe surrounded with clean crushed rock (Seattle Type 22, 5/8" chip rock), enveloped in
filter fabric. Diagram of back wall subdrains to uncompleted outlet and discharge is shown on attached
figure. TGG gave OK to backfill and continue drain rock to within 18 inches of surface.
TESC measures are still in place and functioning. All activity is upslope from straw wattles. Stockpiled soil
excavated to place geogrids has been stockpiled against east side of the property.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Description of Activity:
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
7/30/2019
TGG Job #
2025-3
Client: Mirel Sinclair
Contractor: Somerset Gardens
Field Rep: Paul Stoltenberg
Bearing Verification and Geogrid Placement
Contractor has completed subdrainage installation behind retaining walls. Contractor excavated for placing
consecutive layers of geogrid in accordance with plan and geotechnical engineer recommendations.
Contractor had correctly laid out the geogrid in the strength direction at the grades indicated on the plans
and was reading to cover the first layer of geogrid. TGG engineer reminded contractor to place thin layer of
rock between geogrid layers at corners.
TGG engineer verified compaction method (3 or 4 passes with the plate compactor) on loose lifts no more
than 4 inches to achieve the recommended compaction of the reinforced zone. Contractor has compaction
equipment on site and began compacting lowermost geogrid layer on lower terrace.
Contractor had prepared leveling course for the new wall north of the planter area at the south end of the
lower terrace. Exposed soil consisted of native, undisturbed, medium dense, silty SAND with gravel, and
leveling course of 5/8"-0" crushed rock was placed to support first row of block per plan.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Description of Activity:
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
8/1/2019
TGG Job #
2025-3
Client: Mirel Sinclair
Contractor: Somerset Gardens
Field Rep: Paul Stoltenberg
Geogrid placement and Backfill of Reinforced Zone
Contractor continued to place Miragrid 3XT every two blocks high per approved plan. TGG verified strength
direction, length of geogrid. Backfill consisted of recycled concrete and native sand material placed in fl-
inch loose lifts and compacted in placed with vibratory plate compactor per geotechnical engineer
recommendations. At end of day contractor had finished placing geogrid and backfill in upper terrace level,
allowing for drainage zone behind blocks. Lower terrace was placed up to second layer of geogrid from
bottom layer.
TGG engineer verified compaction method (3 or 4 passes with the plate compactor) on loose lifts no more
than 4 inches to achieve the recommended compaction of the reinforced zone. Contractor has compaction
equipment on site and is using to compact backfill according to geotechnical engineer recommendations.
Contractor has completed wall construction except for capstone on upper and lower terrace by 8/2/2019.
Once material is removed from east side of walls, TGG engineer should visit site again to verify final
embedment and height of walls for the planter areas on east side of terraces.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Dispersion Trench
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
8/6/2019
TGG Job #
2025-3
Client: Mirel Sinclair
Contractor: Somerset Gardens
Field Rep: Paul Stoltenberg
Description of Activity:
Contractor completed installation of back of wall drains per plan and connected stubout south of
lowermost planter to dispersion trench. Dispersion trench constructed in general accordance with the
attached sheet as recommended by the geotechnical engineer and called out on the plan. Trench consists
of 18-inch wide trench filled with 3/4-inch clean crushed aggregate, with 4-inch perforated spreader pipe
capped at both ends laid level within the upper portion of the trench. Pipe covered with fabric to separate
the topsoil from the drainage zone. TGG engineer verified that spreader trench was constructed per
recommendations. Asked contractor to leave pipe visible with fabric for inspection by City Engineer.
Contractor excavating behind block wall on east side to install drainage zone which will weep through the
wall face of the planters. All walls less than 3 feet in retained height per city requirement.
Contractor will need to reshape the grade and amend the soils with mulch per City engineer requirements
prior to final inspection. Contact TGG Engineer when all soils have been amended with compost and
planting is completed for final nspection.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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Install Straw Wattle
on downslope side until
vegetation established
t
Notes:
Dispersion Trench for Wall
and Footing Drains
No Scale
Existing Slope
Construct trench along contour of hill 20 feet from toe
of slope so that pipe does not emit concentrated
discharge at any one location and trench disperses
overflow evenly along trench line.
4" dia. PVC
pert pipe, cap
ends of pipe.
20' min.
vegetated path
in
4-oz geotextil
cover dram
3/4"clean crushed gravel
Layout for dispersion trench must be verified by geotechnical engineer prior to commencing excavation
Dispersion trench must be inspected by geotechnical engineer prior to covering pipe
and after installation of straw wattle with erosion control apron.
For footing drains, dispersion trench does not need a catch basin. Top of trench may be topped with
thin layer of topsoil (less than 8") provided that Mirafi 140N Filter fabric is used to separate drainage
rock from soil. Trench should be at least 10 feet in length.
Connect footing or wall drains to dispersion trench by means of 4-inch PVC (non perforated) with min. slope
of 1/4" per foot of pipe length.
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THE GALLI GROUP
Geotechnical Consulting
PO Box 30759
Seattle, WA 98113
206.525.5097
Construction Operations
Final Erosion Control
DAILY FIELD REPORT
Permit:
BLD 20190610
Address:
7415 Braemar Dr
Date:
812/2019
TGG Job #
2025-3
Client: Mirel Sinclair
Contractor: Somerset Gardens
Field Rep: Paul Stoltenberg
Description of Activity:
Contractor completed restoration and grading of final slope conditions including amending the soil with
compost. All disturbed soils have been amended and mulched adequately for final erosion control. Jute
netting and wattles added to steep slope areas. Contractor will complete landscape planting in September
when the rains return. Wattles should remain in place until new vegetation has been established and can
be removed next Spring.
The site appears adequately stabilized for final erosion control and for winter conditions. SRW elements
and wall drainage have been constructed in general accordance with geotechnical recommendations and
approved project plans.
Future improvements, other than flagstone pavers and landscaping are beyond the scope of this permit.
Prior to commencing additional work on the hillside, the owner should consult with the City planners to
evaluate permit requirements.
cc mbsincinc@comcast.net Submitted by: Paul L Stoltenberg, P.E.
ken@somersetgarden.com Project Geotechnical Engineer
milton.thompson@edmondswa.gov
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-------------------1 ---y----------------4-
o 287.0
289.0 Recently Constructed Walls
Without permit
Existing Terrace
T.O.W. 289.5
B.O.WA 284.5
21'-6"
A.C. DRIVEWAY (Existing)
Existing Non -conforming Condition
1 Scale: 114" = 1'-0"
- - - - - - - - - - - - - - - - - - - - - - oao�
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283.0
I
Recently Constructed Walls
without permit
I
I
T.O. W 283.5
ml
431 B.O.W. 278.5
T.O.W. 287.5
B.O.W. 281.5 ml
cl Existing Rockery4' High
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LL
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Im
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15'-6"
amended soil
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290
nPlanter
T.O.W. 289..E
B.O.W. 287.5
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Existing Terrace
289.0
M N 8 T.O. W. 284.8
B.O.W 284
T.O.W. 289.8 T.O. W 282.83
B.O.W. 287 B.O.W. 281
--------------------
287.0
T.O.W. 289.5
......................................
TO.W. 287.5
B.O.W. 284.5
21'-6"
AC. DRIVEWAY (Existing)
T.O.W. 286.5 Planter
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8 5
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T.Q.W. 280.8
B.iD.W. 280.5
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stairs
Dispersion Trench
amended s0--
reader jute netting, and
Slub out
r s
283.0
280.0 .
wattles
I Planter
5'min.
_
4'
I.O.W. 280..E-\
'
---------------'
B.O.W. 278.5
T.O.W. 283.5
280.8
B.O.W.281.
T.O.W. 287.5
B.O.W
I B.O.W. 2
15'-6"
�
Basting Rockery4 High
UI
11
T.O.W.
83.5
@1 B.O.W.
79.5
>I
Qlm
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Proposed Patio and Planter Walls
2 Scale: OIA = 1'-0"
CO
QM 00
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0"5�
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L O N CO
CD
F-11(nN
Sheet:
Install Straw Wattle
on downslope side until
vegetation established
t
Notes:
Dispersion Trench for Wall
and Footing Drains
No Scale
Existing Slope
Construct trench along contour of hill 20 feet from toe
of slope so that pipe does not emit concentrated
discharge at any one location and trench disperses
overflow evenly along trench line.
4" dia. PVC
pert pipe, cap
ends of pipe.
20' min.
vegetated path
in
4-oz geotextil
cover dram
3/4"clean crushed gravel
Layout for dispersion trench must be verified by geotechnical engineer prior to commencing excavation
Dispersion trench must be inspected by geotechnical engineer prior to covering pipe
and after installation of straw wattle with erosion control apron.
For footing drains, dispersion trench does not need a catch basin. Top of trench may be topped with
thin layer of topsoil (less than 8") provided that Mirafi 140N Filter fabric is used to separate drainage
rock from soil. Trench should be at least 10 feet in length.
Connect footing or wall drains to dispersion trench by means of 4-inch PVC (non perforated) with min. slope
of 1/4" per foot of pipe length.
Final Geotechnical
Inspections Report
Permit BLD 2019 0610
THE GALLI GROUP
Geotechnical Consulting
To: City of Edmonds Building Services Department
Building Division
1221 Fifth Ave N
Edmonds, WA 98020
Subject: FINAL GEOTECHNICAL INSPECTIONS REPORT
7415 Braemar Drive
Edmonds, Washington
Permit No. BLD 20190610
TGG Project: 2025-3
Date: August 12, 2019
The Galli Group performed geotechnical special inspections for the above project. The project
consisted of disassembling an unpermitted segmental retaining wall (SRW), to install reinforcing
geogrids, and reducing the lower terrace to create a planting bed in order to bring the work
within compliance with height and setback restrictions and to construct an engineered and
permitted SRW. The Galli Group provided the design drawings and the following geotechnical
special inspections.
1. Erosion Control Temporary: The erosion control devices appear to have functioned
adequately throughout the project.
2. Observe and Monitor excavation: Temporary excavation for geogrid reinforced zone
was accomplished using hand equipment and maintained stability throughout the
project.
3. Subsurface drainage installation: The contractor installed wall drains consisting of
4-inch perforated pipe, surrounded by 3/4 inch clean crushed aggregate, enveloped in
nonwoven filter fabric. Zone above the pipe was also backfilled with clean crushed
aggregate per plan. All perforated pipe connects to a lateral spreader or dispersion
trench 4 feet downslope from the southernmost planter wall. Any collected water will
disperse from the trench into the slope.
PO Box 30759, Seattle, WA 98113 - Phone: 206-525-5097
FINAL GEOTEC14NICAL INSPECTION REPORT
Page 2 of 2
4. Geogrid Inspection: TGG verified the geogrid strength direction, length, and layout.
Geogrid place was placed according to approved plan.
S. Verify fill and compaction: The backfill consisted of native sand and gravel and
recycled concrete. Backfill was compacted per geotechnical engineer approved
method consisting of multiple passes of vibratory compactor on 4-inch loose lifts to a
firm non -yielding condition.
6. Permanent Erosion Control: TGG Engineer visited the site today. The project area
has been permanently stabilized against erosion. All disturbed soils are amended and
mulched. Slope areas are covered with jute netting and straw wattles to protect the
slope while the planting gets established. Area appeared adequately stabilized for
winter conditions.
7. Verify design constraints: All planters constructed within the setbacks were restricted
to maximum of 3 feet retained height. The south terrace wall was constructed outside
of the setback area per plan.
To the best of our knowledge the above improvements were constructed in general accordance
with the approved plans. The SRW and geotechnical elements were completed as of this date.
Landscaping is scheduled for this fall, and straw wattles for erosion control will be removed next
spring when the plantings have become established.
Sincerely,
THE GALLI GROUP
Paul L. Stoltenberg, P.E.
Project Geotechnical Engineer
-2019
2025 GEO FINAL SPECIAL INSPECTION REPORT 7415 Braemar Dr BLD 20190610_20190812 The Galli Group