HomeMy WebLinkAboutBLD2000-00114 Geotechnical Report , .Au01'TO1l'r *Mc
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Wbeo recorded return to: ' 0:6151:p V� N ..1. • •
Jon Rose 406 C fv�
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Olympic Resource 1
PO Box 1780 ' �P' s
Poulsbo, WA 98370 di • o j�
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a Y EPUT r
Revised Report Addendum
To Supplement GeoEaglne s Gevtechnleal Report
For Port Ludlow No. I
Reference to Related Documents:
A Geotechnical Report dated April 5, 1995, covering Port Ludlow No. 7 recorded at Volume
557, Pages 933 through 964, records of Jefferson County, Washington, under Jefferson County
Auditor's File No. 393727.
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Grantor: Pope Resources, A Delaware Limited Partacbip
Grantee: Pope Resources,A Delaware Limited Partnership
Abbreviated Legal Description: •
Portions of SE 1/4 of Section 8, SW 1/4 of Section 9 NW 1/4 of Section 16, and NE 1/4 of
Section 17, Township 28 North, Range 1 East, W.M., Jefferson County, Washington.
Assessor's Property Tax Parcel/Account Numbers:
82 1 11 62 00 t_
821171 002
821 084 005
821 093 002
321 171 010
e nhe a inn
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February 11, 1997jigt .
Ceaseldeg
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a.r Oseeeiselist
Pope Resources. Inc. vision is%itag
P.O. Box 1780 Oregon,and slut
Poulsbo. Wuhington 98370
Attention: Mr. Jon Rose, P.E.
Revised Report Addendum
Port Ludlow Division 7
Port Ludlow, Washington
File No. 2378-041-03
INTRODUCTION
This letter supplements Geognglnectrs'April 3. 1995
to include criteria for on-site 8e0 l report for the subject site
and infiltration trenches for roof drab and clarify building
setbacks from steep slopes. We understand individual lot dispersal numbers 14 through 22. The dispersal trenched will be constructein ng��are proposed
for Lot
the WDOE Stows Manual (Wes accordance with
(Washington State Department of Ecology Storrnwater
Managanerst Manual for the Puget Sound Basin) criteria and the attached drawing prepared by
WestSourd Ems. Individual lot infiltration trenches are proposed for Lot numbers 1
through 7, also to be constructed in general accordance with WDOE Stormwater Manual criteria.
Clarification Is requested regarding building setbacks from steep slopes for Lots 14 through 22.
DISPERSAL TRENCHES
Dispersal trenches are In our opinion acceptable for d of roof
drainage lots 14 through 22 and lots 1 through 7. The trenches should beconstructedcon individual
contours. Care anus be taken so that the parallel to the slope
system Is properly constructed and that flow is evenly
dispersed on vegetated slopes. We recommend dispersal trenches be setback a horizontal distance
of at least 25 feet front slopes steeper than 3:1 (horizontal to vertical), or the roof drains may be
tightiined to a dispersal trench located at the base of the slope.
d•etrons.a lac
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INFILTRATION TRENCHES
tithe edon Mocha constructed in meal accordance with
criteria and tlel designpevpatb by Weems w1�oe stotmwatu Manual
155 throesf4lN of die J as recorded In Volume 563, pea
dfspoeei of root el�sao County Auditor an in our opinion generally appropriate be
dlspopann a the on Individual lob I through 7. The trenches should be coos
excavated. We recommendandinstalled in native ground which has ours as been filled or
motion trenches be set beck a
slopes steeper din 4:1 (horizontal to vortical). or the roof drainsof at least 25 feet from
trenches at the base of the slope. may be ti�tetlloed to Infiltration
BUILDING SETBACKS
A distinct setback line, to be shown on the Anal plat, was not
We raoomuhs�ded s setbech dtstaoo�from theIn our report.
ont level fine. Foeedge of du footing to the ground surface measured
slopes between 15 and 30 percent, the setback distance is 8 feet, we
rtroamead this distance be increased to 12 feet for slopes inclined between 30 percent and 50
peperccent, and 20 test for slopes steeper than 50 percent. The suck can be shown only after the
use footprint has been located,
4 0 to
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VOL 595 4S4
We trust the foregoing fall your mune needs, should you hays auy questions or poed
additional Information, plass Cry.
Yours very truly,
GcoEtylmars, Inc.
• /,^ � 1 I�/'V • / V •
14-.f�0 A.EM4 Senior Engineer ..
j Exprses 1Q/23/1 7- I
4• Ito,
• Gsry W. Henderson, P.B.
Principal
OHSSGWK.-rc
Drwwrn ID: 2371041 A.A4DD
Attachment
cc: westaouttd Engine dei
Attention: Mr. Craig Baldwin
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VOL 59519..485