20100310140416385.pdfRobert M. Pride, LLC
October 31, 2006
Mr. Jon Kvernmo
Hillcrest Construction
P. O. Box 3121
Everett, WA 98213-1121
Re: Report on Wall Inspection
Single Family Residence
�*,17009 77t" Place West — Lot 7 MICROFILM
Edmonds, Washington
RMP Project No. 05-125-01
Dear Mr. Kvernmo,
Consulting
Engineer
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CG OF 69�40N NS'
At your request and as requested by the City of Edmonds, this letter summarizes my
field inspection of the block retaining wall located on Lot #7 at 17009 77th Place West. It
is understood that a separate permit will be required to cover this wall construction due
to its location within the Edmonds Critical Area.
A site inspection was performed to document existing wall conditions, and to confirm
the adequacy of foundation conditions for support of this interlocking block retaining
wall. The block wall was constructed along the ten foot setback line adjacent to 77th
Place for support of the higher ground surface within the utility easement. Maximum
height of this wall is 30 inches, except where the low end of the wall converges to the
sidewalk. A plan has been submitted showing the wall location with top/toe elevations.
Based on my previous site inspections during excavation for the building pad, this
portion of the wall was placed on competent native soils. Each layer of interlocking
block is offset one inch with a total of about 4 to 5 inches ofbackslope into the filial
compacted backfill. Granular soils were used as a drainage medium behind this wall.
Based on my recent site inspection this wall is approved as constructed. Stability
calculations are not considered necessary due to the limited wall height. Please call me
if there are any questions.
�spectfully,
Robert M. Pride, P. E.
Principal Geotechnical Engi
dist: (2) addressee
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rmp: Hillerestwal1#7
13203 Holmes Point Drive NE Kirkland, WA 98034
Phone: 425-814-3970 Fax: 425-814-5672