HomeMy WebLinkAbout821103009 Geotech Assessment BLUFF EVALUATION AND SETBACK RECOMMENDATIONS
FOR LOT 7, TALA POINT ESTATES
Jefferson County, Washington
GENERAL
On September 30, 1989, a geological evaluation of Lot 7 in Tala
Point Estates (Section 10, Township 28 North, Range 1 East,
W.M., Jefferson County, Washington) was made by Norman A.
Dixon, Engineering Geologist at Northwestern Territories, Inc.
This study was performed for prospective purchasers who were
concerned about the high steep bluff and the associated safe
setDack distance from the bluff edge required for safe building
construction.
CONCLUSIONS AND RECOMMENDATIONS
1. Lot 7 is considered to have the most vulnerable bluff areas
of all the Tala Point Estates properties. The reasons for
this are as follows:
a. The bluff at this location has the greatest height and
steepness and is in an active state of erosion.
b. The lot has a peninsula shape with consequent
vulnerability from shoreline erosion on two partial
sides as well as the outer point of land.
2. For the above reasons, a minimum setback distance from the
outer point bluff edge of 175 feet is recommended for all
permanent type building construction. This requirement
will result in having the building site rather close to the
cul-de-sac street entrance.
3. A less permanent type structure which could be moved, if
necessary in future years, might be constructed within 100
feet of the outer point bluff.
4. A safety fence is recommended approximately 15 feet
landward of all steep bluff edges to prevent accidental
falls by children or vulnerable adults.
STANDARD DISCLOSURE STATEMENT
This report is based on a limited budget investigation. Only
visual inspection of the existing site conditions and/or
facility was conducted. No scientific measurements, tests or
calculations were performed. The findings and report are
limited to the normal standard of care of the industry for a
limited budget investigation without benefit of scientific data
and calculations. Unless foundation plans are reviewed and the
construction work is inspected by the Engineer, no warranty is
made by the Engineer concerning confox~nity of the construction
to the conclusions and recommendations of this report.
! ~ ~-~- ~-~ ~'~- ~ Princi~al ~gineer
t'i'~ D-~>~~- Norman A. Dixon, PEG
~-" ~"~%%~%~ Engineering ~ologist
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