D. Bruce Geotech Field Report 5-30-07.pdfDennis -M. Bruce, P.E.
May 30, 2007
City of Edmonds
Development Services Division
121 5#h Ave. N
Edmonds, WA 98020
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Geotechnical /Civil
Subject: Field Report Summary - Geotechnical Inspections
Hadfield New Single -Family Residence
506 a Ave. S, Edmonds, Washington
City of Edmonds No. 2006 - 0619
RECEIVED
JUN 0 5 2007
BUILDING DEPARTMENT
r,ITY OF EDMONDS
This engineering report presents the results of ongoing geotechnical inspections
for the Hadfield new single-family residence at 506 6th Ave. S, Edmonds, Washington.
These inspections were required as .a condition of permit by City of Edmonds.
REFERENCES:
• City of .Edmonds approved .Project Plans
• Geotechnical Report by PanGeo
• Site photographs
INSPECTIONS:
This engineer continues to perform on-site geotechnical inspections for the
Hadfield residence. These inspections occur daily during active excavation, foundation
preparation, backfill, and drainage work. At a minimum, one inspection visit per week is
performed.
City of Edmonds Inspection Items:
• Excavation: As previously discussed, temporary Eco -Block shoring was required
it Pr er to prevent excessive open cut that would jeopardize the existing Hadfield
residence to the east. All excavation encountered extremely dense, stable, sub -
grade sands. The excavation. was stable, in conjunction with the effective
temporary Eco -Block shoring.
• Temporary Shoring: As previously reported, all temporary Eco -Block shoring was
installed with proper base block embedment, .linkage, batter and "blending in".
The temporary Eco -Block shoring performed properly with no bulging or
movement.
SOILS + FOUAIDA77ONS * WE DEVELOPMENT • INSPEC'nON • DRAINAGE • DESIGN & PERMCr • LEGAL
P.O. Box 55502 • Shoreline, WA 98155 . (206) 545-9217 • FAX (206) 546-8442
r.
Seattle D.P. D.
Re: Hadfield
May 30, 2007
Page 2
Subsequently, the temporary Eco -Block shoring has been properly backfilled.
• Foundation Bearing: Previously verified to provide 3,000 p.s.f. bearing capacity.
The residence foundation footings have been properly placed.
• Subsurface Drainage: This engineer worked with site superintendent (Keith
Launders) to install the subsurface drains, footing drains, and a "dry well" at the
southwest portion of the site.
All subsurface drainage is geotechnically approved.
• Retaining Wall Rockery: Not yet.
• Backfill: This engineer verified the proper placement of backfill against the
foundation stem walls. The clean native sands were placed in compacted lifts
under this engineer's inspections.
• Erosion Control: Contractor continues to properly maintain the rocked
construction entrance, as well as the perimeter siltation fencing (see
photographs).
All work is confined within property lines and no adverse erosional impacts have
been observed to date (May 30, 2007).
SUMMARY:
• Ongoing geotechnical inspections have verified proper completion of items to
date (May 30, 2007)_
Geotechnical inspections continue, as required.
If there are any questions, do not hesitate to call.
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Dennis M. Bruce, P.E.
Geotechnical 1 Civil Enyt, mv,
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