2019.0052 MU Tahoma Terra - Retaining Wall Plans ApprovedREINFORCED SOIL 32°0 PSF 120 PCF SILTY SAND
RETAINED SOIL 32°0 PSF 120 PCF SILTY SAND
FOUNDATION SOIL 32°0 PSF 120 PCF SILTY SAND
Tahoma Terra Phase II, Div II
Yelm, WA
SUGGESTED QUALITY ASSURANCE PROVISIONS:
1.WALL CONSTRUCTION SHALL BE SUPERVISED BY A QUALIFIED ENGINEER OR TECHNICIAN TO VERIFY FIELD AND SITE SOIL
CONDITIONS. IF THIS WORK IS NOT PERFORMED BY THE SITE GEOTECHNICAL ENGINEER, A QUALIFIED GEOTECHNICAL
ENGINEER/TECHNICIAN SHALL BE CONSULTED IN THOSE MATTERS PERTAINING TO THE SOIL CONDITIONS AND WALL
PERFORMANCE.
2.THE FOUNDATION SOILS AT THE BASE OF THE WALL(S) SHALL BE INSPECTED BY THE GEOTECHNICAL ENGINEER. ANY
UNSUITABLE SOILS OR IMPROPERLY COMPACTED EMBANKMENT MATERIAL SHALL BE REMOVED AND REPLACED AS
DIRECTED BY THE ENGINEER PRIOR TO WALL CONSTRUCTION TO PROVIDE ADEQUATE BEARING CAPACITY AND MINIMIZE
SETTLEMENT.
3.ALL WALL EXCAVATION AND RETAINED SOILS SHALL BE INSPECTED FOR GROUNDWATER CONDITIONS. ANY ADDITIONAL
DRAINAGE PROVISIONS REQUIRED IN THE FIELD SHALL BE INCORPORATED INTO THE WALL CONSTRUCTION AS DIRECTED
BY THE GEOTECHNICAL ENGINEER.
4.WALL BACKFILL MATERIAL SHALL BE TESTED AND APPROVED BY THE ENGINEER, MEETING THE MINIMUM REQUIREMENTS
OF THE APPROVED DESIGN PLANS OR SPECIFICATIONS.
5.ALL SOIL BACKFILL SHALL BE TESTED BY THE GEOTECHNICAL ENGINEER FOR MOISTURE, DENSITY, AND COMPACTION
PERIODICALLY (EVERY 2' VERTICALLY, 100'-200' C/C) MEETING THE MINIMUM REQUIREMENTS OF THE APPROVED DESIGN
PLANS OR SPECIFICATIONS.
6.THE CONTRACTOR SHALL ESTABLISH AND MAINTAIN QUALITY CONTROL FOR THE CONSTRUCTION OF THE WALL TO ASSURE
COMPLIANCE WITH CONTRACT REQUIREMENTS AND MAINTAIN RECORDS OF ITS QUALITY CONTROL.
7.ALL WALL ELEVATIONS, GRADES, AND BACK SLOPE CONDITIONS SHALL BE VERIFIED BY THE ENGINEER IN THE FIELD FOR
CONFORMANCE WITH APPROVED DESIGN PLANS. ANY REVISIONS TO THE STRUCTURE GEOMETRY OR DESIGN CRITERIA
SHALL REQUIRE DESIGN MODIFICATIONS PRIOR TO PROCEEDING WITH CONSTRUCTION.
8.SURFACE WATER SHALL BE DIVERTED AWAY FROM THE RETAINING WALL AND WALL REINFORCED ZONE. WHERE
WATER CANNOT BE DIVERTED, NOTIFY THE ENGINEER FOR DESIGN OF A SWALE TO DIVERT THE FLOW OR A DROP
BOX TO DRAIN THE WATER THROUGH THE WALL.
DESIGN PROVISIONS:
1.THE FOLLOWING EFFECTIVE STRENGTH PARAMETERS WERE ASSUMED IN THE
PREPARATION OF THE STRUCTURAL CALCULATIONS FOR THE RETAINING WALL
SYSTEM:
SOIL TYPES AND DESIGN PROPERTIES SHALL BE CONFIRMED BY THE SITE
GEOTECHNICAL ENGINEER PRIOR TO WALL CONSTRUCTION.
2.THE WALL(S) ARE DESIGNED TO SUPPORT THE FOLLOWING MAXIMUM SURCHARGE
LOADINGS:
LIVE LOAD: NONE
DEAD LOAD: NONE
BACK SLOPE: NONE
SEISMIC: 0.33g
3.HYDROSTATIC: NOT APPLICABLE
4.THE FOUNDATION SOILS AT WALL LOCATIONS SHALL BE CAPABLE OF SAFELY
SUPPORTING THE MAXIMUM APPLIED BEARING PRESSURE, AS SHOWN ON THE WALL
PROFILES, WITHOUT FAILURE OR EXCESSIVE SETTLEMENT. LOCAL BEARING
CAPACITY SHALL BE CONFIRMED BY THE SITE GEOTECHNICAL ENGINEER AFTER
FOUNDATION EXCAVATION AND PRIOR TO WALL CONSTRUCTION.
5.REFERENCES:
5.1.GEOTECHNICAL REPORT
5.1.1.Geologic Assessment, Proposed Tahoma Terra Residential Development 2-9, Yelm, WA,
Insight Geologic, PLLC, March 4, 2005.
SHEET DESCRIPTION
T-1 TITLE PAGE/SPECIFICATIONS
P-1 OVERALL PLAN VIEW
P-2 ENLARGED PLAN VIEW
1-1 WALL 1
2-1 WALL 2
3-1 TO 3-2 WALL 3
4-1 TO 4-2 WALL 4
D-1 GRAVITYSTONE EDGE DETAILS
D-2 FENCE POST DETAIL
GravityStone Edge Retaining Wall
PART 1: GENERAL
1.01 Description
A.The work to be performed includes sourcing, providing and installing concrete retaining wall blocks to the lines and grades as specified on the project
construction drawings and as may be further specified herein.
B.Work includes preparing foundation soil, furnishing and installing leveling pad, unit fill and backfill to the lines and grades shown on the construction
drawings.
C.Work includes furnishing and installing all related materials required for construction of the retaining wall as shown on the construction shop drawings.
1.02 Reference Standards
A.ASTM D448 Sizes of Aggregate for Road and Bridge Construction.
ASTM D698 Laboratory Compaction Characteristics using Standard Effort.
1.03 Quality Assurance
A.Owner shall be responsible for soil testing and inspection quality control during earthwork operations.
PART 2: MATERIALS
2.01 Definitions
A.Retaining Wall Unit - A segmental concrete facing block that is able to be arranged, stacked, placed, combined, or interchanged easily into an assembled
wall system.
B.Leveling Pad - A compacted crushed stone pad which serves as a flat surface for placing the initial course of precast units.
C.Granular Aggregate - Clean 1" minus crushed angular rock located within and immediately behind the retaining wall units to facilitate drainage and avoid
compaction in close proximity to the retaining wall units.
D.Joint Geotextile - A filter fabric installed to prevent infill and/or backfill material from migrating through the joints.
E.Foundation Soil - Soil zone immediately beneath the retaining wall facing units, the wall leveling pad and the reinforced soil zone.
F.Retained Soil - Soil immediately behind the retaining wall facing drainage aggregate or reinforced backfill if present.
G.Subsurface Drainage System - A system for removing water from behind the wall and channeling it to a point of positive drainage.
2.02 GravityStone Edge Units
A.GravityStone Edge wall units shall have a minimum 28-day compressive strength of 3,000 psi.
B.Texture on the face of the block shall be specified. Other surfaces to be smooth form type.
2.03 Base Leveling Pad Material
A.Material shall consist of compacted crushed stone as shown on the construction drawing.
2.04 Gravel Layer
A.Gravel layer shall consist of clean 1" minus crushed stone or crushed gravel meeting the following gradation:
Sieve Size % Passing
1"100
3/4"100-75
No. 4 0-10
No. 50 0-5
2.05 Retained Backfill
A.Backfill shall be free of debris or organic material.
Plasticity Index (PI)<20 and Liquid Limits (LL)<40
B.Material can be site excavated material when the above requirements are met. Unsuitable soils for backfill (high plastic clays or organic materials) shall not
be used in the retained soil mass.
PART 3: EXECUTION
3.01 Excavation
A.Contractor shall excavate to the lines and grades shown on the construction drawings. Contractor shall be careful not to disturb embankment and foundation
materials beyond lines shown.
3.02 Foundation Soil Preparation
A.Foundation soil shall be excavated as required for leveling pad dimensions shown on the construction drawings, or as directed by the Geotechnical Engineer.
B.Unsuitable soils shall be removed and replaced with acceptable material.
C.Over-excavated areas shall be backfilled with approved compacted backfill material.
3.03 Base Leveling Pad
A.Leveling pad materials shall be placed upon approved foundation as shown on the construction drawings to a minimum thickness of 6".
B.Aggregate material shall be compacted to provide a dense, level surface on which to place the first course of modular units. Compaction shall be to 95% of
Standard Proctor Density as determined in accordance with ASTM D698. For crushed rock, material shall be densely compacted as determined by visual
observation.
3.04 Unit Installation
A.The first course of concrete modular wall units shall be carefully placed on the base leveling pad. Each unit shall be checked for level and alignment.
B.Units are placed side by side for full length of wall alignment. Alignment may be done by means of a string line or offset from a base line.
C.Sweep excess material from top of units and install next course. Ensure that each course is completely unit filled between and 12" behind block. Backfill and
compact prior to proceeding to next course.
3.05 Fill Placement
A.Backfill material shall be placed with a maximum of 8" lifts and compacted to 95% of Standard Proctor Density. As determined in accordance with ASTM
D698. The in place moisture content shall not exceed the optimum moisture content as determined in accordance with ASTM D698 and be no lower than
2% below optimum moisture content.
B.Only hand-operated compaction equipment shall be allowed within 3' of the back surface of the concrete units.
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
T-1
TITLE PAGE / SPECIFICATION
2/5/2020 12:35:10 PM
BEGIN WALL 1
NW WALL
BEGIN WALL 2
N MIDDLE WALL
BEGIN WALL 3
NE WALL
BEGIN WALL 4
SW WALL
GRAPHIC SCALE IN FEET
0 100 200 300
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
P-1
PLAN VIEW
GENERAL DESIGN NOTES:
THE SITE PLAN IS FOR ILLUSTRATION ONLY. IT WAS
REPRODUCED FROM:
Grading Plan, Tahoma Terra Phase II, Div II, Phase 2, Yelm, WA.,
KPFF, Job No. 406030.06, Sheets R1, R2, 11/8/2019.
2/5/2020 12:35:11 PM
BEGIN WALL 1
NW WALL
BEGIN WALL 2
N MIDDLE WALL
BEGIN WALL 3
NE WALL
GRAPHIC SCALE IN FEET
0 40 80 120
GENERAL DESIGN NOTES:
THE SITE PLAN IS FOR ILLUSTRATION ONLY. IT WAS
REPRODUCED FROM:
Grading Plan, Tahoma Terra Phase II, Div II, Phase 2, Yelm, WA.,
KPFF, Job No. 406030.06, Sheets R1, R2, 11/8/2019.
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
P-1
PLAN VIEW
NORTH WALLS
SOUTH WALL
2/5/2020 12:35:18 PM
Outside CnrSta 930 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
376.5
374.83
373.5
371.5
369.5
367.5
365.5
364.17
362.17
360.17
358.17
356.17
355.5
354.83
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
L=14ft
2600psf
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
L=14ft
2500psf
SG200- L=6
SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
1100psf
SG200- L=4
SG200- L=4
L=4ft
600psf
CAP
MATCH LINEEL AT BASE OF UNIT
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
L=12ft
2300psf
SG200- L=10
SG200- L=10
SG200- L=10
SG200- L=10
SG200- L=10
SG200- L=10
SG200- L=10
L=10ft
1900psf
SG200- L=8
SG200- L=8
SG200- L=8
SG200- L=8
SG200- L=8
L=8ft
1500psf
GS EDGE SG200 GEOGRID
REINFORCING
355
360
365
370
375
380
Rein
Bearing(psf)
Wall No: 00001
NW
355
360
365
370
375
380
Rein
Bearing(psf)
Wall No: 00001
NW
DETAIL
120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215
376.5
354.83
354.17
354.83
356.83
358.83
360.83
362.83
364.83
366.83
368.83
370.83
372.83
374.83SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
900psf
SG200- L=6
L=6ft
500psf
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
L=14ft
2700psf
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
L=14ft
2700psfMATCH LINECAP SG200 GEOGRID
REINFORCING
GS EDGE
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
L=12ft
1700psf
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
SG200- L=12
L=12ft
1300psf
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
SG200- L=14
L=14ft
2400psf
EL AT BASE OF UNIT
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
1-1
WALL 1
2/5/2020 12:35:30 PM
Inside CnrSta 360 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
378.33
379.66
380.33
381
380.33
379.66
379
378.33
377.66
377.33
376.66
376
SG200- L=4
L=4ft
SG200- L=4
L=4ft
SG200- L=4
L=4ft
SG200- L=4
L=4ft
200psf
L=0.88ft
200psf
L=0.88ft
300psf 400psf 500psf 500psf 200psf
L=0.88ft
200psf
L=0.88ft
SG200- L=4
SG200- L=4
L=4ft
500psf
SG200- L=4
L=4ft
400psf
SG200- L=4
L=4ft
300psf
CAP
GS EDGE
SG200 GEOGRID
REINFORCING
MATCH LINEEL AT BASE OF UNIT
375
380
Rein
Bearing(psf)
Wall No: 2
N MIDDLE
375
380
Rein
Bearing(psf)
Wall No: 2
N MIDDLE
120 125 130
377
200psf
L=0.88ft
200psf
L=0.88ftMATCH LINERACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
2-1
WALL 2
2/5/2020 12:35:32 PM
370
375
380
Rein
Bearing(psf)
Wall No: 3
NE Outside CnrSta 910 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
377.67
378.33
379
379.67
380.33
381
376 376.67 377.33 376.67 376
SG200- L=4
L=4ft
SG200- L=4
L=4ft
200psf
L=0.88ft
300psf 500psf
SG200- L=4
L=4ft
600psf
SG200- L=4
L=4ft
600psf
SG200- L=4
L=4ft
500psf
SG200- L=4
L=4ft
500psf
SG200- L=4
L=4ft
400psf MATCH LINESG200- L=4
L=4ft
300psf
CAP
GS EDGE SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240
380.33
375.33 374.67 374 373.33 372.67 373.33
SG200- L=5
SG200- L=5
SG200- L=5
L=5ft
900psf
SG200- L=4
SG200- L=4
L=4ft
600psfMATCH LINEMATCH LINEDETAIL
SG200- L=5
SG200- L=5
SG200- L=5
SG200- L=5
L=5ft
900psf
SG200- L=5
SG200- L=5
SG200- L=5
SG200- L=5
L=5ft
900psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=5
SG200- L=5
SG200- L=5
L=5ft
800psf
CAP
GS EDGE SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 3
NE
240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325 330 335 340 345 350 355 360
379.67
379
373.33MATCH LINEMATCH LINESG200- L=4
SG200- L=4
SG200- L=4
L=4ft
800psf
SG200- L=4
SG200- L=4
L=4ft
700psf
CAP
GS EDGE
SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 3
NE
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
3-1
WALL 3
2/5/2020 12:35:33 PM
360 365 370 375 380 385 390 395 400 405 410 415 420 425 430 435 440 445 450 455 460 465 470 475 480
378.33
374
SG200- L=4
SG200- L=4
L=4ft
600psfMATCH LINEMATCH LINESG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
L=4ft
600psf
GS EDGECAP
SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 3
NE
480 485 490 495 500 505 510 515 520 525 530 535 540 545 550
377.67
377
376.33
375.67
375 375
374
200psf
L=0.88ft
200psf
L=0.88ft
SG200- L=4
L=4ft
400psf
SG200- L=4
L=4ft
300psf
SG200- L=4
L=4ft
500psfMATCH LINECAP
SG200 GEOGRID
REINFORCING GS EDGE
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 3
NE
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
3-2
WALL 3
2/5/2020 12:35:35 PM
370
375
380
Rein
Bearing(psf)
Wall No: 4
SOUTH
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
375.33
376
376.67
377.33
378
378.67
379.33
374.33
373.67
SG200- L=4
L=4ft
SG200- L=4
SG200- L=4
L=4ft
200psf
L=0.88ft
200psf
L=0.88ft
300psf 600psf
SG200- L=4
SG200- L=4
L=4ft
600psf
SG200- L=4
SG200- L=4
L=4ft
500psf
SG200- L=4
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
L=4ft
600psf
CAP
GS EDGE
MATCH LINESG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 4
SOUTH
120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240
380
379.33
373 372.33
SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
1000psf
SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
900psf
SG200- L=4
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
900psf
GS EDGE
MATCH LINEMATCH LINECAP
SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
4-1
WALL 4
2/5/2020 12:35:37 PM
370
375
380
Rein
Bearing(psf)
Wall No: 4
SOUTH
240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325 330 335 340 345 350 355 360
378.67
378
377.33
376.67
376
371.67 371
SG200- L=6
SG200- L=6
SG200- L=6
L=6ft
900psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
SG200- L=4
SG200- L=4
L=4ft
800psf
SG200- L=4
SG200- L=4
SG200- L=4
L=4ft
800psf
SG200- L=4
SG200- L=4
L=4ft
800psfMATCH LINEMATCH LINECAP
GS EDGE
SG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
Outside CnrSta 438Outside Cnr360 365 370 375 380 385 390 395 400 405 410 415 420 425 430 435 440 445 450 455 460 465 470 475 480
376
375.33
374.67
374 374
373.33
370.33
369.67
369
SG200- L=4
SG200- L=4
L=4ft
500psf
SG200- L=4
SG200- L=4
L=4ft
600psf
SG200- L=4
L=4ft
500psf
SG200- L=4
L=4ft
600psf
SG200- L=4
SG200- L=4
L=4ft
600psf
SG200- L=4
SG200- L=4
L=4ft
700psf
SG200- L=4
L=4ft
500psf
CAP
GS EDGE
MATCH LINEMATCH LINESG200 GEOGRID
REINFORCING
EL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 4
SOUTH
Outside CnrSta 483Inside CnrSta 540480 485 490 495 500 505 510 515 520 525 530 535 540 545 550 555 560 565 570
372.67 372 372.67 372.67
369.67
370.33
371SG200- L=4
L=4ft
400psf 200psf
L=0.88ft
200psf
L=0.88ft
300psf
L=0.88ft
200psf
L=0.88ft
200psf
L=0.88ft
SG200- L=4
SG200- L=4
L=4ft
600psf
CAP SG200 GEOGRID
REINFORCING
GS EDGE
MATCH LINEEL AT BASE OF UNIT
370
375
380
Rein
Bearing(psf)
Wall No: 4
SOUTH
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
4-1
WALL 2
2/5/2020 12:35:38 PM
8"24
"
10.5"
18
"
10"4"24
10"4"24
"8"10.5"
Drainage Fill
Place Additional Pieces of Geogrid
When Angle Exceeds 20degs.
3'' of Soil Fill is Required
Between Overlapping
Geogrid for Proper
Anchorage. (Typ.)
Additional Drainage
Fill Extend Wall
Height/2
Geogrid Installation at Corners
14'
CAP FILTER FABRIC OVER
GRAVEL ZONE
12" CRUSHED STONE
4" PERFORATED
DRAINAGE PIPE
OUTLET 50' C/C
6" CRUSHED STONE
LEVELING PAD
SG200
GEOGRID
REINFORCING
WALL 1 NW STA 153
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
D-1
DETAILS
2/5/2020 12:35:40 PM
CAP FILTER FABRIC OVER
GRAVEL ZONE
12" CRUSHED STONE
40°
FENCE
POST
SLEEVE-IT NOTE: WHERE POST OF 2' OR MORE
AWAY FROM THE WALL, A
SONO-TUBE MAY BE USED.
RACE ENGINEERING ASSOC.
4851 Four Seasons Ct
Eagan, MN 55122
e: rrace@rea-llc.com
t: 612-670-7009
Tahoma Terra Phase II, Div II
Yelm, WA
19-013-01
1/11/20
DESIGN INFORMATION PROVIDED FOR
INTERNAL STABILITY ONLY. EXTERNAL
STABILITY, INCLUDING BUT NOT LIMITED TO
FOUNDATION SETTLEMENT, GLOBAL
STABILITY AND SLOPE STABILITY IS THE
RESPONSIBILITY OF THE OWNER AND OWNER'S
ENGINEER.
D-2
HANDRAIL DETAILS
2/5/2020 12:35:41 PM