HomeMy WebLinkAboutSDP202200035 Other 2022-12-29YV
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DRAWING INDEX
Sheet
1
Site Plan
2
General Notes/ Design Parameters
3-4
Details
5-6
Wall A - Sta. 0 to Sta.
237
7-8
Wall B - Sta. 0 to Sta.
249
9 - 10
Wall C - Sta. 0 to Sta.
187.5
11
Wall D - Sta. 0 to Sta.
111
12
Wall E - Sta. 0 to Sta.
66
WALLA' ✓
Anchor Diamond Pro Segmental Retaining Walls
Pleasant Green - Phase IIB/III
Albemarle County, Virginia
Site Plan Adapted From The Grading & Drainage Plan, Sheet No. 12 and Sheet No. 13,
Dated May 14, 2021, Prepared By Collins Engineering.
Site Plan For Illustrative Purpose. Approx. Scale: V = 100 FT
SITE PLAN
���iH AFL
o�
u MICHAEL R.
b Uc. No. 021245
�o� /Z�2zrZZ
WALL E--------
0
LOT LOT
Scale: 1" = 100 FT
050 100
Circeo 5956 Buckland Mill Road
Geotechnical Roanoke, Virginia 24019
_ Engineering, P.C. 9
FA I Phone: (540) 366-2379
Project No. I RW-2897
NOTES:
1.0 STRIP VEGETATIVE AND ORGANIC SOIL FROM THE WALL
AND GEOGRID ALIGNMENT.
2.0 BENCH CUT ALL EXCAVATED SLOPES.
3.0 DO NOT EXCAVATE BEYOND EXCAVATION LINES SHOWN
ON PLAN UNLESS DIRECTED BY THE GEOTECHNICAL
ENGINEER TO REMOVE UNSUITABLE SOIL.
4.0 CONTRACTOR SHALL ENSURE TEMPORARY EXCAVATIONS ARE STABLE
AND PROVIDE EXCAVATION SUPPORT IF NEEDED.
5.0 GEOTECHNICAL ENGINEER SHALL VERIFY FOUNDATION
SOILS AS BEING COMPETENT PER THE DESIGN PARAMETERS.
6.0 LEVELING PAD SHALL CONSIST OF COMPACTED SAND, GRAVEL,
OR COMBINATION AND SHALL BE A MINIMUM 6-INCH THICK
LAYER WITH A MINIMUM WIDTH OF 24 INCHES.
7.0 A 4-INCH-DIAMETER SLOTTED DRAINAGE PIPE SHALL BE INSTALLED
BEHIND THE WALL AND CONNECT TO WEEPHOLES INSTALLED AT
THE BASE OF THE WALL (40 FEET ON CENTER) AND EXTEND BEYOND
THE FINAL GRADE TO DAYLIGHT (SEE DRAIN DETAIL).
8.0 DRAINAGE AGGREGATE AND UNIT (CORE) FILL SHALL CONSIST OF
CLEAN ANGULAR GRAVEL (VDOT NO. 57 STONE), MEETING THE FOLLOWING
GRADATION AS DETERMINED IN ACCORDANCE WITH ASTM D-422.
SIEVE SIZE PERCENTAGEPA55ING
1-112 INCH 100
1 INCH 95-100
1/2 INCH 25 - 60
NO.4 0-10
NO. 8 0-5
9.0 GEOGRIDS SHALL BE LAID HORIZONTALLY ON COMPACTED
BACKFILL FOR THE REQUIRED GEOGRID LENGTH (GL) IN THE
TENSILE STRENGTH DIRECTION (PERPENDICULAR TO WALL FACE)
NOTED ON THE WALL PROFILE. THE GEOGRID SHALL BE
PLACED WITHIN ONE INCH OF THE FRONT FACE OF
THE UNIT BELOW AND EXTEND HORIZONTALLY
OVER COMPACTED FILL.
10.0 ANCHOR DIAMOND PRO UNITS MOLDED DIMENSIONS
SHALL BE 8 INCHES HIGH BY 18 INCHES LONG BY
12 INCHES DEEP AND SHALL NOT DIFFER MORE THAN
+ 1/8 INCH IN ANY DIMENSION.
11.0 A 1-INCH SETBACK PER UNIT (REAR LIP) SHALL BE MAINTAINED FOR
PROPER BATTER (I.E. 7 DEGREE CANT FROM VERTICAL).
12.0 GEOGRIDS SHALL BE PLACED WITHIN 1 INCH OF THE FRONT FACE
OF THE UNITS AND GEOGRID5 PULLED TIGHT (AFTER PLACEMENT
OF THE NEXT COURSE OF BLOCK UNITS) TO REMOVE SLACK
AND TO INTEGRATE GEOGRIDS AND UNITS.
13.0 FIELD ADJUSTMENTS OF BLOCK ALIGNMENT MAY BE MADE
ON NON -REINFORCEMENT LAYERS WITH THE USE OF SHIMS
OR ASPHALT SHINGLES TO RAISE ONE COURSE OF BLOCK BY
A MAXIMUM OF 1/4 INCH VERTICAL HEIGHT.
14.0 REINFORCED FILL SHALL CONSIST OF GRANULAR SOIL FILL
WITH U5C5 SOIL TYPES GP, GW, GM, GC, 5W, SP, SM OR 5C
WITH A MINIMUM ANGLE OF INTERNAL FRICTION, OF 28 DEGREES
AS OUTLINED IN DESIGN PARAMETERS - NOTE 5.
LOW PLASTICITY CLAYEY SAND (SC), SILT OR CLAY (ML-CL) CAN BE USED
SUBJECT TO APPROVAL BY THE GEOTECHNICAL ENGINEER.
MAXIMUM PARTICLE SHALL BE LIMITED TO 4INCHES IN DIAMETER.
THE FINE FRACTION (MINUS NO. 40 SIEVE) SHALL HAVE A MAXIMUM
LIQUID LIMIT (LL) OF 40 AND A MAXIMUM PLASTICITY INDEX (PI)
OF 20. THE BACKFILL SHALL BE FREE OF DEBRIS AND ORGANIC MATTER.
HIGHLY EXPANSIVE SOILS (MH-CH) SHALL NOT BE USED IN THE
REINFORCED FILL ZONE.
15.0 REINFORCED FILL SHALL BE PLACED IN 8-INCH LIFTS AND
COMPACTED TO A MINIMUM OF 95% OF MAXIMUM STANDARD
PROCTOR DENSITY (A5TM D-698) AND WITHIN + 3 PERCENTAGE
POINTS OF OPTIMUM MOISTURE CONTENT. COMPACTION TESTS SHALL
BE PERFORMED AS THE WALL I5 INSTALLED. COMPACTION WITHIN
3 FEET OF THE WALL SHALL BE LIMITED TO HAND -OPERATED EQUIPMENT.
DESIGN PARAMETERS:
1 BUILDING CODES: 2018 VIRGINIA UNIFORM STATEWIDE BUILDING CODE (USBC)
AND 2018 INTERNATIONAL BUILDING CODE (IBC).
2 THE WALL PROFILES ARE BASED ON THE GRADING & DRAINAGE PLAN,
SHEET NO. 12 AND SHEET NO. 13, DATED MAY 14, 2021,
PREPARED BY COLLINS ENGINEERING.
3 WALL DETAILS SHOWN ON THIS PLAN ARE FOR ANCHOR DIAMOND PRO
SEGMENTAL RETAINING WALL (SRW) UNITS MEETING THE NATIONAL
CONCRETE MASONRY ASSOCIATION (NCMA) CRITERIA FOR SRW WALL SYSTEMS.
4 ENGINEERING ANALYSIS BASED ON USE OF STRATAGRID 5GU60 AND 5GU80
GEOGRID5. OTHER COMPATIBLE GEOGRIDS MAY BE SUBSTITUTED
WITH THE APPROVAL OF THE WALL DESIGN ENGINEER.
5 THE DESIGN OF THE SEGMENTAL RETAINING WALL (SRW)
ASSUMES THE FOLLOWING PARAMETERS:
Ym, Moist
FRICTION
SOIL
SOIL
UNIT WEIGHT
ANGLE
COHESION
CONDITIONS
Type
(PCF)
0, (DEG)
(PSF)
REINFORCED FILL
Granular or Low Plasticity Soil 120
28
0
RETAINED SOIL
On -Site Soil
120
28
0
FOUNDATION SOIL
On -Site Soil
120
28
100
16.0 A VIBRATORY PLATE TAMPER SHALL BE USED TO DEN5IFY
NO. 57 STONE. COMPACTION TESTS CAN BE WAIVED
WHERE NO. 57 STONE I5 USED AS REINFORCED FILL.
17.0 CONTRACTOR SHALL SLOPE SITE GRADES TO DIRECT SURFACE
RUNOFF AWAY FROM WALL AT END OF EACH DAY TO AVOID
WATER DAMAGING THE WALL WHILE UNDER CONSTRUCTION.
18.0 ANY SURFACE DRAINAGE FEATURES, FINISH GRADING, PAVEMENT,
OR TURF SHALL BE INSTALLED IMMEDIATELY AFTER THE WALL I5 COMPLETED.
19.0 IF SITE AND SOIL CONDITIONS, WALL GEOMETRY, OR WALL
LOADING ARE DIFFERENT THAN THE DRAWINGS AND THE DESIGN
PARAMETERS, THE CONTRACTOR MUST CONTACT THE WALL DESIGN
ENGINEER PRIOR TO PROCEEDING WITH THE CONSTRUCTION OF THE WALL.
20.0 DETAIL FOR HANDRAIL POSTS AT THE TOP OF THE WALL IS PROVIDED
FOR PLACEMENT OF P05T5 BEHIND THE WALL.
V Setba6
7pen Cells
Filled With Stone)
V Rear Lip
UNIT CONNECTION DETAIL
(Not to Scale)
6 SOIL STRENGTH PARAMETERS ARE BASED ON USE OF GRANULAR OR LOW
PLASTICITY SOIL IN THE REINFORCED FILL ZONE. ALL SOIL FILL SHALL BE
PLACED IN MAXIMUM 8-INCH LIFTS AND EACH LIFT IS COMPACTED TO
A MINIMUM OF 95% OF MAX. STANDARD PROCTOR DENSITY, AND
WITHIN + 3 PERCENTAGE POINTS OF OPTIMUM MOISTURE CONTENT,
USING PORTABLE COMPACTION EQUIPMENT.
DO NOT USE HIGH PLASTICITY CLAY (CH-MH), ROOTS OR TOPSOIL IN REINFO
ZONE. ANY SOFT, SATURATED SOIL ENCOUNTERED IN 5UBGRADE SHALL BE
UNDERCUT AND REPLACED WITH CRUSHED STONE TO STABILIZE THE
FOUNDATION 5UB6RADE OR AS DIRECTED BY THE GEOTECHNICAL ENGINEER.
WALL A - MAX. WALL HEIGHT = 7.33 FEET (INCLUDING EMBEDMENT)
WALL B - MAX. WALL HEIGHT = 6.67 FEET (INCLUDING EMBEDMENT)
WALL C - MAX. WALL HEIGHT = 6.67 FEET (INCLUDING EMBEDMENT)
WALL D - MAX. WALL HEIGHT = 6.67 FEET (INCLUDING EMBEDMENT)
WALL E - MAX. WALL HEIGHT = 5.33 FEET (INCLUDING EMBEDMENT)
FRONT SLOPE = LEVEL TO MAX 3H:IV
BACKSLOPE BEHIND THE WALL = LEVEL TO MAX 3H:IV
EQUIVALENT BUILDING SURCHARGE AT TOP OF WALL = 350 PSF
MIN FACTOR OF SAFETY (SLIDING) = 1.5
MIN FACTOR OF SAFETY (OVERTURNING) = 2.0
MIN FACTOR OF SAFETY (BEARING CAPACITY) = 2.0
q = DESIGN SOIL BEARING PRESSURE = 750 PSF TO 2,250 PSF
MICHAEL
Lic. No. 021245
% /Zl�22
AL
AiU'11 wi..rl 111u.. LlW
Albemarle County, Virqinia
Circeo
Geotechnical
Engineering, P.C.
Scale: N/A
Date: 12/22/22
Revision: ---
5956 Buckland Mill Road
Roanoke, Virginia 24019
Phone:(540) 366-2379
Fax: (540) 904-6200
Project No. I RW-2897
Alternate Geogrid Placement on
Subsequent Geogrid Elevations to
Eliminate Gaps \
Overlap Geogrids and Place 3" Soil Fill
Between Overlapping Geogrids for Proper
Anchorage
SRW Units
CONVEX CURVE DETAIL
(Not to Scale)
D---- —A G.....1.. ,.a o..aa..... -4 \AI-11
rvun o 1 ripuK R cY Yviue Crusher Run or Similar
Foundation Soil
BASE STEPPING DETAIL
(Not to Scale)
42" Tall Safety Handrail or Fence Non -Woven Filter Fabric
w/ Sleeve -It SDI Fence -Post Anchoring System Mirafi 140N or Equivalent
Geogrid Reinforcement (Typical)
Cop Unit
Refer to Wall Profile for Geogrid Type,
Secure t
Geogrid Length (GL) and Location
o Top Unit
w/ Concrete Adhesive
Anchor Diamond Pro Units
Drainage Aggregate`'""'"`'
Min 12" Thick
VDOT No. 57 Stone
Weephole w/Wall Drain Pro
— — — —� 24" Vertical Spacing (Typ.)
Daylight Pipe
Through Wall
Retained Soil
40' OC Spacing (TypJ
— —
Reinforced Fill
Dia. Drain Pipe Granular or Low Plasticity Soil
Compacted Backfill
T. (See Drain Detail) Compact To Min 95 % Standard
Stone Leveling Pod
GL Proctor Density
Crushed Stone or and
6" Min Thick x 24" Wide
See Wall Profile
TYPICAL
RETAINING WALL CROSS SECTION
(Not to Scale)
j f 12-1/2" i
Ell 0 1-
l 15trai ht
1 9
Rear Lip Split Face
18 w 1" Setback
8-1/2"
8" { 8"
/ y1
1 I
ANCHOR DIAMOND PRO UNIT
(Not to Scale)
,x`:', API TH 01;'i
s
MICHAEL R. I
Uc, No. 021245
AL
Circeo
Geotechnical
Engineering, P.C.
5956 Buckland Mill Road
Roanoke, Virginia 24019
Phone:(540) 366-2379
Project No. I RW-2897
42" Tall Pedestrian Guard
w/ Sleeve -It Fence -Post Anchoring Systemm\
Typ. 6'-0" O.C. Post Spacing \l.`
Pedestrian Guard Note:
The handrail/fence post has been designed for a 200 Ibs concentrated horizontal load
acting at the top of the post with a factor of safety of 1.5 againt overturning.
The railing shall be designed for 50 Ibs per linear foot uniform load.
The railing design is not included in the engineering, but the forces applied to the railing
have been considered in the wall design
Sleeve -It SD1
Fence -Post Anchor System
Landscape Buffer
Min 3 FT
Bushes/Shrubs
/— Non -Woven Filter
12" Soil Cover
Reinforced Fill
LANDSCAPE BUFFER DETAIL
(Not to Scale)
Sleeve -It SDI Fence -Post
Anchor System - Top Dia. 7.4"
Grout Fill After Post Installation
w/ Min 3.000 Dsi Grout
Bottom Dia. 9.4"
Filter Fabric - 4 FT Wide
Mirofi 140N or Equivalent
cantilever Base 30.6"L x 15.3"W
Soil Cover
23.4"
Note: Shrubs can be planted behind the wall.
The top geogrid layer can be cut using a utility knife
for placement of the root bulbs.
G
YVQImf ILQi\�I�YR]iLf �
�Si�M�SA4iB�1
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li•^�
�� YM -fN�
Start Geogrid Approx. 1"
From Front of Units
SRW Unit
GEOGRID PLACEMENT DETAIL
(Not to Scale)
Reinforced Fill
4" Dia. Perforated Drain Pipe
12" Thick VDOT No. 57 Stone
oO OO oO 00 00
Retained Soil
If— 30.6u�ryvv'.r
r~r:r1r1 Reinforced Fill / O
rrr�r�r'r.
r1r`rtir1r' O MICHAEL R. I
y.titiyti
•: •r.r.r r r
' "• ' �•• ' '' *�. �Lic. No.o021245
SLEEVE -IT FENCE POST DETAIL
(Not to Scale) �tRrONAL E1
�aaaat
V8" W r L Anchor Diamond Pro Units
Wall Drain Pro (Weephole) at Max. 40' O.C.
Drain to Daylight
WALL DRAIN PRO DETAIL
(Not to Scale)
Circeo
Geotechnical
Engineering, P.C.
5956 Buckland Mill Road
Roanoke, Virginia 24019
Phone:(540) 366-2379
Project No. I RW-2897
WALL A
75
75
75
75
74
O
o
}
74
74
N
o
74
Q
j
d
74
—
C
3
W
73
73
t
O
73
N
73
73
72
72
Mill
MHMMMMIMMMEMMN
IMMIN
ME
—42" Tall Pedestrian Guard
----I�MI
—■--------------•------•------��-------•------•--------------•---rMMIMM�—
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GL=4.5FT I a=6FT I
q = 750 psf •I �q = 1,000 psf I
LEGEND
®
Cap Unit (4" Height)
0
Anchor Diamond Pro Units (8" Height x 18" Width)
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone)
TOC
Top of Cap Unit
TOW
Top of Wall (Excluding Cap Unit)
BOW
Bottom of Wall (Including Embedment)
— 60 • —
• StrataGrid SGU60
0 4" Drain Pipe to
5'
VgNlcE
Fqg,
PG.
Ste. 0
Station (ft)
ENLARGED SITE PLAN
Use Granular or Low Plasticity Soil
in Reinforced Fill Zone
RETAINING WALL A
Sta. 0 to Sta. 120
Viewed From Front Face of Wall
= Design Soil Bearing Pressure
GL = 8 FT
q = 1,250 p:
WALL A
w/ 42" Tall Pedestrian Guard
Al
7
Scale: 1" = 30 FT
0 15 30
Circeo 5956 Buckland Mill Road
Geotechnical
Engineering, P.C. Roanoke, Virginia 24019
Lic. MICRR. I 9 Phone: (540) 366-2379
NNoo. 021245
a
k+ 1"= loft.
ZZ�v Scale: H'
Sys G� V: 1"= loft. Project No. RW-2897
NAL ti� Date: 12/22/22
""•• Revision: --- Sheet 5 of 12
WALL A
756
754
752
750
748
O
746
o
t
tt
744
t
Cp
742
e
740
d
738
0
Iu
736
J
s
734
u
0
732
730
728
726
TOC = 742,33
TOW = 742.00
6L=8FT
6L=8FT
ii 1
Tall Pedestrian Guard
Max. 3H:1V Backslope
TOC = 742.33
TOW = 742.00
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6" Thick Stone
Proposed Grade at Bottom of Wall Leveling Pad BOW = 736.00 i
BOW = 734.67 (Low Point) Drain Pipe to Daylight - 40 FT O.C. (Typical) BOW = 734.67 (Low Point)
101 20 130 140 150 160 170 180 190 2210 21 2230 237
1 I I
Station (ft) I I I
I I I
I GL=8FT I GL=6FT I GL=4.5FT
q = 1,250 psf IN I go q = 1,000 psf IN I q = 750 psf
LEGEND
®
Cap Unit (4" Height)
0
Anchor Diamond Pro Units (8" Height x 18" Width)
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone)
TOC
Top of Cap Unit
TOW
Top of Wall (Excluding Cap Unit)
BOW
Bottom of Wall (Including Embedment)
60 ' —
' StratoGrid SGU60
GL
0 4" Drain Pipe to
Use Granular or Low Plasticity Soil
in Reinforced Fill Zone
RETAINING WALL A
Sta. 120 to Sta. 237
Viewed From Front Face of Wall
= Design Soil Bearing Pressure
lsant Green -
Albemarle Coui
O '�PA Circeo 5956 Buckland Mill Road
�� C✓ s Geot ineerial Roanoke, Virginia 24019
O MICHAEL R. I y _ Engineering, P.C. r9
C: � Phone: (540) 366-2379
Lic. No. 021245
1"= loft.
FReVIC111sleon
V: 1"= loft. Project No. RW-2897
A NAL �� 12/22/22
...�a>�
: --- Sheet 6 of 12
WALL B
75
TOC = 737.00
7
TOW = 736.67
74
0
7
6
o
74
7
co
-
73
ruO
3
73
73
73
73
72
)0
1.67
0
SWTaTion
GIL = 6 FT I GL = 8 FT
0.1
q = 1,000 psf q = 1,250 psf
r-T �Ii LVI �-7 7i
SMT;748'117 Hit
IJFFE=759-3$ FAdLr '6 Sif
.7 1 LOT 85 .- , :
-C
33 SMT=A%x EASEMENT
FF =76o.
DIWAL"
7
.1 LOT
;rD V
(MAX. HT. - 6')
rFE=759. •88 WALLMAINTENANCE
87
.0, EAStmew';
BSMT=74 81, PG. ... ... :
`15 .67 D.S.
GARI LOT
-FFE116
'go Ste. 2
BSMI= .50 1. ..
5 8. 74
LOT
..... .....
0�
.00 91 sta. 10
7" —sta. leo LOT ....... . 150 5 .60,
... ...sta5t �00§NiW_
92 20
sta. 0
LOT
Ste. go A' ROPOSED WALL
93 (MAX. HT. - 6') WALL b
t 60 " ' r
PROPOSEdWALIL PROPOSib UNDERGROUND STC
(MAX. HIT. z: 61 FACILrrYC'- SEI
sta. 3 "JMIT�'O'F SUNNY
74 P U WALL C
DAY DAM BREACH Scale: 1" 30 FT
WALL B
w/ 42" Tell Pedestrian Guard
ENLARGED S PLAN to 0 0 15 30
LEGEND Pleasant Green - Phase IIB/III
Use Granular or Low Plasticity Soil P.LTn 0 Albemarle County, Virginia
Gum= Cap Unit (4" Height) in Reinforced Fill Zone CIRCE0 GEOTECH
Anchor Diamond Pro Units (8'* Height x 18" Width) 0 eo 5956 Buckland Mill Road
C✓ Geotechnical
Lewling Pad (Min. 6" Thick x 24" Wide Crushed Stone) Engineering, p C Roanoke, Virginia 24019
TOC Top of Cap Unit RETAINING WALL B MICHAEL R. I > Phone: (540) 366-2379
TOW Top of Wall (Excluding Cap Unit) (�o Lic. No. 021245
BOW Sta. 0 to Sta. 120 HI: 1"= loft.
Bottom of Wall (Including Embedment) �6 /Z/2z/z.P' Scale:
60 'StrataGrid SGU60 Viewed From Front Face of Wall S'r 11P IV: 1"=Ioft. Project No. RW-2897
80 StrataGrid SGU80 10NAL '1-7 Date: 12/22/22
GI. Geogrid Length (ft) 0 4" brain Pipe to Daylight q Design Soil Bearing Pressure (psf)— 0'1,44�401 Revision: I --- Sheet 7 of 12
FA
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•
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-MMMEMM==
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Proposed Grade at Bottom of Wall BOW 734.00 (Low Point
brain Pipe to Daylight - 40 FT O.C. (Typical)
NNN .......
10
F na 1
30 40 50 60 70 80 90 100 110 q
WALL B 756
Max. 3HAV Backslope
754
752
750
748
..
746
d
744
0
742
a
740
m
w
738
d
W
736
J
s
734
U
0
732
730
728
726
120
I
I
I�
TOC = 741,00
TOW = 740.67
GL=8 FT
GL=8FT
6L=8 FT
_'BOW = 734.00 (Low Paint)
130 140
LEGEND
®
Cap Vnit (4" Height)
Anchor Diamond Pro Vnits (8" Height x 18" Width)
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone)
TOC
Top of Cap Unit
TOW
Top of Wall (Excluding Cap Unit)
BOW
Bottom of Wall (Including Embedment)
60 • —
' Strato&rid SGV60
0 4" Drain Pipe to
GL=8 FT
FT
FT
6" Thick Stone Proposed Grade at Bottom of Wall
Leveling Pad Drain Pipe to Daylight - 40 FT O.C. (Typical)
150 160 170 I80 190 200 207
I
Station (ft) I
TOC = 738.33
TOW = 738.00
220 225 230
I
1
GL = 8 FT _ I GL = 6 FT
No I
q = 1,250 psf - 9 = 1,000 psf
Use Granular or Low Plasticity Soil
in Reinforced Fill Zone
RETAINING WALL B
Sta. 120 to Sta. 249
Viewed From Front Face of Wall
= Design Soil Bearing Pressure
x• EA1i OF
MICHAEL R.�
Lic. No. 021245
/2�/2zf22
tk7ONAL O
,L44H44�
35.67
TOW - 735.33
TOC = 736.33 /
TOW = 736.00
M01111111110rr•BOW 734.00 (Low Point)co
r. r�rrr• r•rrr•
�s�rrr.r•rrr.
240 LT
I
GL=4.5FT
I
q = 750 psf
neuounr vrcerr - rnuae aaoi iia
Albemarle County, Virginia
CIRCEO GEOTECH
Circeo 5956 Buckland Mill Road
Geotechnical Roanoke, Virginia 24019
L Engineering, P.C. 9
Phone:(540) 366-2379
Scale: H' I"= 10 ft,
V: 1"= 10 ft. Project No. RW-2897
Date: 12/22/22
Revision: --- Sheet 8 of 12
WALL C
746
744
74z
740
738
0
736
a
+
734-4
0)
0
732
�
730 '
V
o
d
W
728
3
726 L
L
724
}
U)
722
720
718
716
I
I
TOC = 733.00
TOW = 732,67
OW = 730.67
Max. 3H:1V Backslope
Wall B Above
BOW 730.00 BOW = 728.00
=
Proposed Grade at Bottom of Wall
Drain Pipe to Daylight - 40 FT O.C. (Typical) �1
10 20 30
1
am
40 50 60 70
Station (ft)
GL=10FT
q = 1,500 psf
54• �I_7� �BSMT=74 zS �_ 851.83
=74.00
LOT
LOT .-7 4-
LOT —746 85._.- Ir 8WM iu1,v$
86 ' EASEMENT - Daft
AINTENANCE EASE
D.B. PG.
744
PROPOSED WALL--- �+
(MAX.MAHT = V)
AEN 0 G . c
-5ta.
Max. 3H:1V Backslope
Tall Pedestrian Guard
6L=10FT
6L=10FT
1
I
I
BOW = 726.00 (Low Point)
80
T
83..
PG.
0
6" Thick Stone
Leveling Pad
GL=8FT
q = 1,250 p:
5ta, 61%r k WALL D
Sta. 30 - , . �, {� .,,
Sta. 0 .��.._ �� 5ta. 0`� r ' r�c>,�->
WALL B �`P OPOSSEDD 'WALL r WALL C F�_. *+
(MAX. HT. = 6') w/ 42" Tall Pedestrian Guard ��
DOSED WALL PROPOSED UNDERGROUND STORMWATER MANAGEMENT ' v
HT. = 6'1 _ FACILITY'C' - SEE VSMP PLAN FOR DETAILS) I
ENLARGED SITE PLAN (WP0202000053)
110
30
TOC = 733.00
TOW = 732.67
L-WALL E
LSL( r
Wn I6ol
120
I
I
Scale: 1" = 30 FT
015 30
LEGEND Pleasant Green - Phase IIB/III
Use Granular or Low Plasticity Soil pLTH OF Albemarle County, Virginia
® cap Vnit (4Height) in Reinforced Fill Zone " O L CIRCEO GEOTECH
ght � J
Anchor Diamond Pro Vnits (8" Height x 18" Width) �. �Ci CGeotechnicalirceo 5956 Buckland Mill Road
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone) F Engineering, P.C. Roanoke, Virginia 24019
TOC Top of Cap Unit RETAINING WALL C �; MICHAEL R. I > � 021245 No. Phone: (540) 366-2379
TOW Top of Wall (Excluding Cap Unit) •o Lic. cr
80W Bottom of Wall (Including Embedment) Sta. t0 Sta. 120 O� ��ZZ �L� H: A--
60 ' Strato&rid SGV60 Viewed From Front Face of Wall �s Gti2 Scale: V: Project No. RW-2897
}'/ONAL tiDate: = Desi n Soil Bearin Pressure sf ' """`GL Geogrid Length (ft) O 4" Drain Pipe to Daylight q g g (p �Revision: Sheet 9 of 12
WALL C 746 Max. 3H:1V Backslope
744TOC = 733.00
742 TOC = 733.00 42" Tall Pedestrian Guard
740TOW = 732.67 TOW = 732.67
73$ GL=6 FT
736
t
t .'�., 736 U u'f
0 732 o a^o
6L=8FT GL=8FT
e 730
V N 6L=8FT 6L=8FT W a
y W 728 6L=8FT 6L=8FT
C
726
s 724 i BOW = 729.33
a 722 6" Thick Stone I
720 Leveling Pad — Proposed Grade at Bottom of Wall
BOW = 726.67
718 BOW = 726.00 (Low Point) Drain Pipe to Daylight - 40 FT O.C. (Typical)
716
120 130 140 150 160 170 181.5 187.5
I l 6L=6FT
Station (ft) I l q = 1,000 psf
I _I
I� 6L=8FT
I q = 1,250 psf
LEGEND Pleasant Green - Phase IIB/III
Use Granular or Low Plasticity Soil EpLTH OF Albemarle County, Virginia
® Cap Unit (4" Height) in Reinforced Fill Zone p�� Lf,,P CIRCEO GEOTECH
Anchor Diamond Pro Units Circeo
0 (8" Hight x 1a" Width) G'� 5956 Buckland Mill Road
Geotechnical
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone) O MICHAEL R. I y Engineering, P.C. Roanoke, Virginia 24019
roc Top of Cap Unit RETAINING WALL C
A Lic. No. 021245 cc
Phone: (540) 366-2379
TOW Top of Wall (Excluding Cap Unit)
BOW Bottom of Wall g ) Sta. 120 to Sta. 187.5
'P �l�/ W
(Including Embedment O� � ZC_�Q+ Scald. H' 1"= loft.
60 ' — ' StrataGrid SGU60 Viewed From Front Face of Wall �'s G� V: 1"= 10 ft. Project No. RW-2897
s L�ONAL ti� Date: 12/22/22
- Desi n Soil Bearing Pressure (psf) �``*6}g4
GI. G¢ogrid Length (ft) 0 4" Drain Pipe to Daylight q g g (p � Revision: --- I Sheet 10 of 12
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706
10 20 30 39 50 60 70 80 90 1100 111
I I I
I i Station (ft) I I
1 6L = 14 FT GL = 1T I GL - 14 FT
I 6 FI
q = . I q = 2,250 psf I� q = 2,000 psf► I
GAR=75 .00 1 - BS =T ao 6 FE=746.3 GAR
=743•
4,1--f FE=751. 7 74o BSMT=73 .So I ; FFE744 =742.83.•�� 74��BSMT=734.5(
LEGEND
®
Cap Unit (4" Height)
0
Anchor Diamond Pro Units (8" Height x 18" Width)
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone)
TOC
Top of Cap Unit
TOW
Top of Wall (Excluding Cap Unit)
BOW
Bottom of Wall (Including Embedment)
80 —
StrataGrid SGU80
GL
Geogrid Length (ft) 0 4" Drain Pipe to Dayli
`—' LOT
LOT 8 0' 7 .is.
3
EASEMENT - D.B. PG.
D WALL 1 "I
HT. = 69X--o�5t,<
7
f7/ I ;-
30
PG. —
to. 9u
Sta 3�0
5to. 60
Z
5ta, 60 1� _
-- '; WALL
�`Sta. o ° ° -+� _
""
WALL
\ 'PROPOSED WALL %
E
PROPOSED WA L
WALL
(MAX. HT. = 6')J ,,
WALL C
B
I
�! II ,I
MAX. HT. = 4')
SLOPES 3:1
0 O
';I
STEE R THAN S ALH L BE PL,
ENLARGED SITE PLAN STORMWATER MANAGEMENTS {�
WITH ANNUAL RYEGRASS BY ERNST C01
Use Granular or Low Plasticity Soil
in Reinforced Fill Zone
RETAINING WALL D
Sta.0 to Sta. III
Viewed From Front Face of Wall
= Design Soil Bearing Pressure
��pLTH pF Albemarle
Circeo
✓ Geotechnical
MICHAEL R. I y Engineering, P.C.
UI)Lic. No. 021245
0� 1MWz_e__ w Scale: H: 1"= 10 ft.
XJ` G� V: 1"= 10 ft.
s"70NAL b� Date: 12/22/22
Revision: ---
Scale: I" = 30 FT
o15 30
5956 Buckland Mill Road
Roanoke, Virginia 24019
Phone:(540) 366-2379
Project No. I RW-2897
WALL E
744
742
740
738
736
o
734
6
}
732
0
730
i
728
w
-U
p
W
726
3
724
722
a
720
718
716
714
i
• C •
..
y
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: • � • •
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Proposed Grade at Bottam
� • • - • � • • � �
n0 10.5 20
I I
I I
GL=4.5FT I
qq�I�
6L=45FT
TOC = 729.00
TOW = 728.67
w
o `o
3 }
U)
w
— BOW = 726.67
= 726.00
of Wall
O.C. (Typical)
30 40 50 60 66
I GL = 4.5 FT
Station (ft) I I q = 750 psf
GL=6FT I I
�I F►► If
q = 1,000 psf
F�—
EASEMENT - D.B.
Sta. 60
(MAX. HT. = 6'r v '„` `
ENLARGED SITE PLAN STORMWATERMANAGEMENT
I FFE=7
`742— BSMT
PG. _
I�SLOPE5 STEE4R THAN 3a SQL BE PL,
WITH ANNUAL RYEGRASS BY ERNST C01
Scale: V = 30 FT
015 30
LEGEND ricuau.,i UFMCF1 - rr.ua.a ��Pf�
Use Granular or Low Plasticity Soil �Ir, O Albemarle County, Virginia
in Reinforced Fill Zone
® Cap Unit (4" Height) FG CIRCEO GEOTECH
[� !
0 Anchor Diamond Pro Units (8" Height x 18" Width) %C = CGe-ot 5956 Buckland Mill Road
✓ GeotCeoechnical
Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone) '� LW En ineerin , P.C. Roanoke, Virginia 24019
roc Top of Cap Unit RETAINING WALL E C' MICHAEL R. I a ® 9 9 Phone: (540) 366-2379
TOW Top of Wolf (Excluding Cap Unit) Lic. No. 021245
BOW Bottom of Wall g ) Sta. 0 to Stu. 66 'P g �.��/ �V
(Includin Embedment O ZZ Q H: 1"= loft.
60 — ' StratoGrid SGU60 Viewed From Front Face of Wall �s Gti? Scale. V: 1"= 10 ft. Project No. RW-2897
}R70NAL b� Date: 12/22/22
- Desi n Soil Bearing Pressure (psf) """'`
GI. G¢ogrid Length (ft) 0 4" Drain Pipe to Daylight q g g (p � Revision: --- I Sheet 12 of 12