19-105850-SU-Geotechnical (Soils) Report-08-6-2021-V2EarthSolutionsNWLLC
EarthSolutions
NW LLC
Geotechnical Engineering
Geology
Environmental Services
Construction Observation/Testing
1805 -136th Place N.E.,Suite 201 Bellevue,WA 98005
(425)449-4704 Fax (425)449-4711
www.earthsolutionsnw.com
GEOTECHNICAL ENGINEERING STUDY
PROPOSED RESIDENTIAL DEVELOPMENT
34402 -24 PLACE SOUTHWEST
FEDERAL WAY,WASHINGTON
ES-5791
TH
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction
EarthSolutionsNWLLC
EarthSolutions
NW LLC Observation/Testing and Environmental Services
Vicinity Map
34402 –24th Place S.W.
Federal Way,Washington
MRS
SES
04/20/2018
April 2018
5791
1
NORTH
NOTE:This plate may contain areas of color.ESNW cannot be
responsible for any subsequent misinterpretation of the information
resulting from black &white reproductions of this plate.
Reference:
King County,Washington
Map 744
By The Thomas Guide
Rand McNally
32nd Edition
SITE
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction
EarthSolutionsNWLLC
EarthSolutions
NW LLC Observation/Testing and Environmental Services
Test Pit Location Plan
34402 –24th Place S.W.
Federal Way,Washington
MRS
SES
04/20/2018
April 2018
5791
2
NORTH
NOTE:This plate may contain areas of color.ESNW cannot be
responsible for any subsequent misinterpretation of the information
resulting from black &white reproductions of this plate.
NOTE:The graphics shown on this plate are not intended for design
purposes or precise scale measurements,but only to illustrate the
approximate test locations relative to the approximate locations of
existing and /or proposed site features.The information illustrated
is largely based on data provided by the client at the time of our
study.ESNW cannot be responsible for subsequent design changes
or interpretation of the data by others.
0 3 0 6 0 1 2 0
Sc ale in Feet1"=6 0 '
LEGEND
Approximate Location of
ESNW Test Pit,Proj.No.
ES-5791,April 2018
Subject Site
Existing Building
Proposed Lot Number
TP-1
TP-2
TP-3
TP-4
TP-1
Sheds
Shed
House
420
410 400 390 380420
410 400 390 380 22NDPLACES.W.S.W.344TH
COURT
S.W. 344TH STREET
24TH PLACE S.W.1 32
4
5
6
Tract A
5
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLCEarthSolutionsNWLLC
EarthSolutions
NW LLC Geotechnical Engineer ing,C onstr uction
Observation/Testing and Environmental Services
34402 –24th Place S.W.
Federal Way,Washington
MRS
SES
04/20/2018
April 2018
5791
3
RETAINING WALL DRAINAGE DETAIL
NOTES:
Free-draining Backfill should consist
of soil having less than 5 percent fines.
Percent passing No.4 sieve should be
25 to 75 percent.
Sheet Drain may be feasible in lieu
of Free-draining Backfill,per ESNW
recommendations.
Drain Pipe should consist of perforated,
rigid PVC Pipe surrounded with 1-inch
Drain Rock.
LEGEND:
Free-draining Structural Backfill
1-inch Drain Rock
18"Min.
Structural
Fill
Perforated Rigid Drain Pipe
(Surround in Drain Rock)
SCHEMATIC ONLY -NOT TO SCALE
NOT A CONSTRUCTION DRAWING
Drwn.
Checked Date
Date Proj.No.
Plate
Earth Solutions NWLLC
Geotechnical Engineering,Construction
Observation/Testing and Environmental Services
EarthSolutionsNWLLC
EarthSolutions
NW LLC
34402 –24th Place S.W.
Federal Way,Washington
MRS
SES
04/20/2018
April 2018
5791
4
FOOTING DRAIN DETAIL
Slope
Perforated Rigid Drain Pipe
(Surround in Drain Rock)
18"Min.
NOTES:
Do NOT tie roof downspouts
to Footing Drain.
Surface Seal to consist of
12"of less permeable,suitable
soil.Slope away from building.
LEGEND:
Surface Seal:native soil or
other low-permeability material.
1-inch Drain Rock
SCHEMATIC ONLY -NOT TO SCALE
NOT A CONSTRUCTION DRAW ING