SWA000201_Plansheet C306-C308- SCM Detail_20230417

0
HEADWALL
INVERT: "� > Z
388' b LiJ
1 >
RISER STRUCTURE SHALL BE REINFORCED PRECAST CONCRETE, 6"
r�
/ > THICK. CONCRETE SHALL CONFORM TO LATEST C-913 SPECIFICATIONS O
� AND HAVE A MINIMUM COMPRESSIVE STRENGTH OF 4000 PSI � �
A
� ` ` -RISER STRUCTURES CONSTRUCTED WITH MULTIPLE BARREL SECTIONS
X`. > TRASH RACK (REFER TO DETAIL) o
'y SHALL HAVE WATERTIGHT JOINTS AND EACH SECTION SHALL BE BOLTED N
�
I 427 LF 42" RC PIPE ALL HARDWARE SHALL BE STAINLESS STEEL TO ADJACENT SECTION WITH STAINLESS STEEL HARDWARE. r~y o Z
HINGE ON NORTH SIDE FOR J m
MANWAY ACCESS wLLI
Y a
--- W of Lj rn o_j
_j
CAI > H J (O
IS & 5' X 5' (INSIDE DIMENSION
CONCRETE RISER (6" THICK WALLS
6' X 6' (OUTSIDE DIMENSION CL
SCM ACCESS AND ', TOP OF RISER 191 Lo
I �A9 \ MAINTENANCE CONSEAL CONCRETE SEALANT Lo
EASEMENT b CS102 OR EQUAL THAT r rt
MEETS ASTM C-990-91
. . .
. . . . .
-
�9 OPEN AT TOP
,�. WQ ELEV = 188.7
N IN 15 RC OUTLET PIPE
3" PVC TEE 9" 3' OUTLET PIPE INVERT 188'
PERMANANT POOL = 188
FOREBAY
. .
N CD
\ 6" ORIFICE i
` ----------- INV: 188' TTOM OF BASE 186 N V)
BO oc a
12' WIDE 9sr,"� 6' I� J
ACCESS PATH PRECAST RISER SHALL BE PROVIDED a U
AT TOP OF "�, OPEN AT BOTTOM Z
POND: 1OF S 38 LF 42" RC PIPE
ELEV. 187 WITH WITH 2' THICK SOLID BASE a a
30' WIDE FOREBAY
VEGETATED a O a
SETBACK
6" STAINLESS STEEL PIPE
STUBBED INTO RISER
MAIN Pool `.M. RISER DETAIL �'�"�
I
o
/ o O F
I V/
c�
NORMAL WATER 0
SURFACE HEADWALL Z U
ELEVATION: 188' INVERT: Z O (n
�cp 388' PROVIDE A KEYWAY TRENCH UNDERTHE CENTELINE M O W
~
i OF THE DAM. REFER TO PLAN VIEW, NOTES AND Q Z
KEYWAY TRENCF DETAIL. 17 �
3:1 SIDE TKO L Q
SLOPES
(TYPICAL) `s ALL RIP
RAP SHALL BE
KEYWAY TRENCH CLASS B RIP PER NCDOT
SECTION 1042
/ --- -- -_.
__"_.------- _-
-- _ ...
'A 10' WIDE VEGETATIVE TOP CF POND 194.5'
i SHELF. REFER TO ------_
i PLANTING SCHEDULE
CON CRETE RISER
_ REFER TO DETAIL
SCM ACCESS AND
MAINTENANCE ______ 100-YEAR HGL = 191.93
10' WIDE INIMUM ACCESS PATH
EASEMENT 8 WIDE BERM 10% MAXIMUM CROSS SLOPE
TOP OF RIP RAP AT 174'
2-YEAR HGL = 189.88 10-YENR HGL = 191.01
°0 1' THICK: d50: 1 1-YEAR HGL = 189.49
I
=
WQ ELEV 88.7
\ PER ANANT POOL = 188'
\ II!
ENDWA L WITH 18" 3 3 3 IN 187'
CURTAIN WALL 3 ANTI-SEEP COL R
�1 1 ENDWAL WITH 18"
T: REFER TO DETAIL
CURTAIN WALL
RIP-RAP o
\� 2' THICK BOTTOM OF POND = 175' 10' WIDE VEGETATIVE SHELF FROM RIP-RAP AT OUTLET PIPE 0
I' Ld
173.5' TO 174.5' AROUND PERIMETER REFER TO D AIL >
! d50: 1' OF POND AS SH WN ON PLANS AND
VEGETATIVE SHELF SECTION
\ 0TTOM OF FOREB =177'-179' a,
\ 106 LF OF 15" RCP A 0.94% cq 00
NDS \ �1 PIPE SH LL USE L ,�
0-RING ASKETS N a
U
X I
Lj W O Cj
v \I ' d C" Z
Ld
Ld
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I v n W LXL. Z
V/ c0
00
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w 0o J
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_ (n O H
Q N U
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175 Z
�-
N OU
SEAL
C A R CMill
wr
9
CONCRETE �i �F, .�. •�� ��
OUTLET /��< �p MA
STRUCTURE /III I I
N \--
y L/14/2O23
ANTI-SEEP !r' ;
DATE
COLLAR (TYP 2)
I 1g2 2/24/2023
' -CL
I1 15 LF OF ISSUED FOR
15" RCP REVIEW
I 790 SHEET NO.
I I ,
I
\ 15" FES AND
RIP-RAP
C306
0 40 80 %120 CONSTRUCTION DRAWINGS
ISSUED FOR:
Q i
❑ MU PRELIMINARY MUNICIPAL REVIEW
SCALE: 1 " = 40' '
❑ BID SET
❑ CONSTRUCTION DOCUMENTS
/

dM dM dM dM M dM dM dM dM dM dM dM F1M' dM
4.5
C ~= 114
-—
4 t0 Z
Lu
e e
te w
a `;
HI
- _ L X_ w Lo
> � Z
- 192 ISM r-
192 192 ❑
cn -
- -
- -
z
_ CL
6O-, v) U-
- 188 Lo
-
•`` 184 SOUTH FES 1
�1.84 184•.,
_ __ 184
- -
'HEADWALL
INVERT:T.`- - - - -- 180
178------------- 478
374'
ANTI-SEEP 172
-------------- - --
------ COLLAR (TYP 4) 168
i
----- 163
- 163 .14- O
CONCRETE` SCM ACCESS AND �}' M O
STRUCTURE 00
MAINTENANCE
OUTLET NORMAL WATER' d N a
EASEMENT = rn
G 12' WIDE SURFACE - --- 4. a, 24" RCP J
} KEYWAY
ELEVATION: 194' LA
ACCESS PATH HEADWALL
TRENCH AT TOP OF = INVERT: a Z I a
POND: 184.5' �1 374' Z J
---- ' 'MAIN POOL FOREBAY
- -- - �A —AN fTI J Z
Al
a
N
_s �. 3:1 SIDE
- F 1
1 10 LF 0 0' WIDE VEGETATIVE
30" RCP 1 SHELF. REFER TO SLOPES �,
F ---
= 63 (TYPICAL)
PLANTING SCHEDULE CC
F �6� 163 O C
30" FES AND >>2 Z F_ Z
RIP-RAP
------------
171 is (n O Z
18
185
----------------------
i
- -- -- 184
S -
--
SCM ACCESS AND �-
— �1
MA
INTENANCE
-
____ EASEMENT -
-
(99
- /
- - -
r
- - -��
_--
/ - -
---• -------------------
------------
' =-
-- -- - /
- - _ -----
--- _- / _ /
v - - - -
p --- - - - - - /
- - -
- - - - ---- ---------- - -___ ____ __ __ __ __------- ------- --- - - _- /
V - ---- -- = _---_ _ ---_ -__- _ _ - - - ---- -----
= - ____________________ ___ ___ _ __ - - - - - /
-- -- ___ ___ _ _-__- _ -— __ - - /
- - -
_--
- - ----- - - - /
------------------ ------. --___ ------ /
= _ ---------
-----
0 40 80 120 6
z
uj
SCALE: 1 " = 40'
0
L5 0 o
r
�ry+ N d
1.� Z � J
u
Li
PROVIDE A KEYNAY TRENCH UNDER THE CENTELINE
RISER STRUCTURE SHALL BE REINFORCED PRECAST CONCRETE, 6" a 0 Z
THICK. CONCRETE SHALL CONFORM TO LATEST C-913 SPECIFICATIONS OF THE DAM. EFER TO PLAN VIE NOTES AND rn w
KEYWAY TRENCF DETAIL.
AND HAVE A MINIMUM COMPRESSIVE STRENGTH OF 4000 PSI 1 N 0) z_
TRASH RACK (REFER TO DETAIL)
-RISER STRUCTURES CONSTRUCTED WITH MULTIPLE BARREL SECTIONS N x o
ALL HARDWARE SHALL BE STAINLESS STEEL SHALL HAVE WATERTIGHT JOINTS AND EACH SECTION SHALL BE BOLTED u` w
TO ADJACENT SECTION WITH STAINLESS STEEL HARDWARE. ALL RIP-RAP SHALL BE W 0 -1HINGE ON WEST SIDE FOR CLASS B RIP PER NCDOT
MANWAY ACCESS SECTION 1042 w i, 0
00
U) 0 �
Ll w � a
J _J CN
TOP F POND 184.5' < a, N
5' X 5' (INSIDE DIMENSION) a, o
CONCRETE RISER (6" THICK WALLS) CO CRETE RISER N
6' X 6' (OUTSIDE DIMENSION) TOP OF RISER 180' REFER TO DETAIL IL o a =
z o
100-YEAR HGL = 152.77 rn
8 WIDE BERM 10' WIDE INIMUM ACCESS P TH N o
TOP OF RIP RAP AT 174' 10-Y R HGL = 180.43 10% MAXI UM CROSS SLOPE +
5' CONSEAL CONCRETE SEALANT 2-YEAR HGL = 179.1
CS102 OR EQUAL THAT 1' THICK: d50: 1' 1-YEAR HGL = 1 8.02 SEAL
OPEN AT TOP MEETS ASTM C-990-91 60" RCP - WQ ELEV = 76 �C A o
WQ ELEV = 176 8'
PER ANANT POOL 174' i
2
3 16' 12' 12' 12' IN 170'
3" PVC TEE 9" 3'
ENDWA L WITH 18" 3 -
PERMANANT POOL = 174 30" RC OUTLET PIPE CURTAIN WALL �1 11 3 11 _� 9
OUTLET PIPE INVERT 172'2- _41SIVERT �1 ANTI-SEEP COL R ENDWAL WITH 18" G A
REFER TO DETAILCURTAIN WALL F k�
RIP-RA
2' THICK BOTTOM OF POND 163'
3" ORIFICE 10' WIDE VEGETATVE SHELF FROM RI -RAP AT OUT IPE ���F< • • •INV: 174' = DETAIL P M
d50: 1.5 173.5' TO 174.5' AROUND PERIMETE REFER TO / LI \\--
-< - - - OF POND AS SHOWN ON PLANS AND 1� 4/2023
BOTTOM OF FORE Y=163'-165 VEGETATIVE SHELF SECTION
OPEN AT BOTTOM ELEV. 173 BOTTOM OF BASE 170' DATE
6, 11 LF OF 30" RCP T 0.5� 2/24/2023
PIPE SH LL USE
PRECAST RISER SHALL BE PROVIDED 0-RING ASKETS
WITH WITH 2' THICK SOLID BASE ISSUED FOR
3" STAINLESS STEEL PIPE REVIEW
STUBBED INTO RISER
SHEET NO.
RISER DETAIL
CONSTRUCTION DRAWINGS
ISSUED FOR: C307
■ PRELIMINARY
❑ MUNICIPAL REVIEW
❑ BID SET
❑ CONSTRUCTION DOCUMENTS

2' TYPICAL Z
C7 m p O HINGE ONE QUAGRAVT FDR 18"THICK EACH SIDE
r H MANIlVAY ACCESS
zo NOTES: Q<< I I�5"TYP (14 SPACES) W
H O=O W1 FT. p 6" * THIS PRECAST ENDWALL MAY BE USED FOR THE FOLLOWING H 0= U - 2"X 2"X t"ALUMINUMA O
m O -I STANDARDS: 838.01, 838.11, 838.21, 838.27, 838.33, LL J 01 H z ANGLES @ EACH
H z => 838.39, 838.51, 838.57, 838.63 AND 838.69. O 0 Cn= CORNER LLI O
=Om>>m * INSTALL PRECAST ENDWALLS WITH WINGS AND PAY LU Q z LL s
Z= FOR IN ACCORDANCE WITH SPECIFICATION SECTION 838. ~V O C=D • #"DIA-MTG HOLES(12 2' TYPICAL TOP D 5 04
z= a o 1-o" 1'-°" CD
USE 4000 PSI CONCRETE. F= z LU }"xi, RECI'D)NTH j"SST KEY TRENCH SHALL BE PROVIDED & BOTTOM ■� � co o z
• O H * PROVIDE ALL REINFORCING STEEL WHICH MEETS ASTM A615 Cn�LL O J HORIZONTAL 1NEDGEANCHORS UNDER THE DIRECTION OF J Ld
C7 S Z FOR GRADE 60 AND WELDED WIRE FABRIC CONFORMING �O~< ALUMINUM , THE GEOTECHNICAL ENGINEER OUTLET PIPE FROM LJ Y M DIII O TO ASTM A185 WITH 2" MIN. CLEARANCE. Z F-I eAR5 ARE MDT EMBANKMENT W I Oti Of HOLES TD OE 4" PRINCIPLE SPILLWAY W a rnAG H2 H2 PLACE LIFT HOLES OR PINS IN ACCORDANCE WITH N SHOWN FOR FROM OUTSIDE EDGE 1 r �'-' CLARITY STRUCTURE REBAR SQUARE Cn a >
Z ' on H1 H1 I OSHA STANDARD 1926.704. 0 * ❑F FRAME
* PIPE TO BE GROUTED INTO HEADWALL AT JOB SITE BY r O RING CENTERED IN J O
CONTRACTOR 7i n EXISTING GROUND COLLAR, 9"FROM W LO > 00 Z
ALL ELEMENTS PRECAST TO MEET ASTM C913. �-' OUTLET PIPE r LJ
WELDED WIRE FABRIC MAY BE SUBSTITUTED FOR REBAR
1 -0 AS LONG AS THE SAME AREA OF STEEL IS PROVIDE°. ' NOTES: � < Z
* CHAMFER ALL CORNERS 1" OR HAVE A RADIUS OF 1".
8" O.C.(TYP.) ]6- 8" O.C.(TYP.) BACKFILLED WITH COMPACTED REFER TO PLANS FOR LOCATIONS OF COLLARS ,n LL
REFER TO CHART
11 REFER TO CHART LU 2"X;'ALUMINUM OARS EMBANKMENT MATERIAL FOR BAR SIZE Lu USE 3000 sI CONCRETE FOR LO
COLLAR
m FOR BAR SIZE NOTE: THE MINIMUM BAR SIZE SHALL BE #5 BARS J Y SPACED+/_S"O C @ 13ASF p r
AT 8 CTS.THE CONTRACTOR WILL HAVE THE OPTION U) �•.-
CO m ELEVATION SIDE TO INCREASE THIS BAR SIZE AS NEEDED. LL 4 " - FRAME(4j'oPENINC,) 3' DEEP (MINIMUM) KEY TRENCH �� 6' f~ BOTTOM OF COLLAR TO BE IMBEDDED 6"INTO FIRM UNDISTURBED EARTH.
Z CENTERED UNDER FILL EXTEND BEYOND 18"MIN SHOWN ON DETAIL IF REQUIRED
0 n 3 �°ALUMINUM-F ATF FFRAVIF 3:1 SLOPE TYPICAL
ma to z - 72'x z2"x�„v.�nF
t/� _ Z COLLARS SHALL FORM A WATERTIGHT CONNECTION WITH THE PRINCIPAL SPILLWAY BARREL S_
N ENDWALL DIMENSIONS ¢ W 0. ��� �� z ALUMINUM
°; ��'-- -- ALUMINUM COLLARS SHALL BE PLACED A MINIMUM OF 2'FROM PIPE JOINTS
> W2 (FT.) FT. MINIMUM MIN./MAX. MIN./MAX. MIN./MAX. MIN./MAX. MIN./MAX. 0 W a ANGLE @ EAUH
= p z (- : CORNER
x Z O PIPE DIA. BAR SIZE H1(FT.) H2(FT.) D (FT.) W1 W2 0 W N
0 C cc PLAN VIEW CONCRETE ANTISEEP COLLAR
y Cl) o _ a 1.0 #5 @ 8" 1.25/2.00 2.00/3.75 1.25/1.75 3.00/3.75 5.50/6.00 0 �„ KEY TRENCH DETAIL
Ni m I tO 1.25 #5 @ 8" 1.25/2.00 3.00/3.75 1.25/2.00 3.50/3.75 6.50/6.75 z Z' _�
0 4 p NOT TO SCALE NOT TO SCALE
m D 1.50 #5 @ 8" 1.25/2.00 3.00/4.25 1.50/2.50 3.50/3.75 6.50/6.75 � U"
2.0 #5 @ 8" 1.50/2.50 4.00/4.75 1.75/2.50 4.00/4.25 7.50/8.25 N �UUfiRE
m m � 3"SST"U"e3[7LT LIFT LUG
D 2.5 #5 @ 8" 2.50/3.50 4.00/6.00 2.00/3.00 4.50/5.50 10.00/11.50 H y J 1O"x 16"x "ALL ALUMINUM TOP
Cp 1 3.0 #5 @ 8" 3.00/3.50 5.00/6.00 2.75/3.50 5.25/5.75 11.50/11.75 J 'Q C7 -PLATE WITH 3"U BOLT LIFT
0 a O yQ 3.5 #5 @ 8" 3.25/4.50 6.00/6.75 3.25/3.50 6.00/6.75 12.00/13.25 W W N LUG O
O
4.0 #5 @ 8" 3.50/4.50 6.50/7.00 3.25/3.50 6.50/6.75 13.00/13.25 ix 1 1`10 Ile) O
gr PLAN 4.5 #5 @ 8" 4.00/5.00 6.50/8.50 3.25/4.00 7.00/9.25 13.50/15.75 0. LLO 'X71"ALUMINUM BARS 00 J
5.0 #5 @ 8„ 4.50/5.00 7.00/8.50 3.25/4.00 7.25/9.25 13.75/15.75 SPACED HORIZONTALLY
5.5 #5 @ 8" 4.50/5.00 7.50/8.50 3.25/4.00 7.25/9.25 14.00/15.75 a w A$SHOWN 40 Q U Ln Q
6.0 1 #5 @ 8" 4.50/5.00 7.50/8.50 3.25/4.00 7.75/9.25 14.75/16.75 N (9) PO CO a Z I I-
(6) PE VI 9 SA LA (3) PE VI J Z r1_ W
SHEET 1 2E-1-i ISHEET 1 OF 1
Q z
838.801 1838.80 ACCOMMODATES A MIX A
BO"X B0"I.D.FOR
-L-A \\n�� BOTH A 4"AN©5"
10' W� O
LWALL (9) SA LA 2.5' 2.5 2.5 2.5'
(3) IR VI Q
MIX B (6) N QZ IR VI MIX AIMIX BIMIX CIMIX DI 3 Z Q
d '
4 GG'LD. (9) JU EF +0.5' 4" TOPSOIL LAYER FOR = O
sntLAlzE (5) AS IN 0' GROUNDCOVER CD
u 4 -0.5' W
CONSEAL CONCRETE SEALANT Z O z
3000 PSI CONCRETE CURTAIN WALL s°WALL sLCTIOH 4' Aroau sEcrlaN MIX C (4) AS IN 1 FINISHED GRADE D O
CS102 OR EQUAL THAT GENERAL NOTES: SECTION VIEW
#4 REBAR DOWEL Z (n U Z
MEETS ASTM C-990-91 (9) CH CL 9 CA TE p
PERMANANT POOL �
(5 TOTAL) RIP-RAP DISSIPATOR 1. PERMANENT BASINS AREA TO BE USED FOR
ELEVATION
TEMPORARY SEDIMENT BASIN DURING CONSTRUCTION. 4" TOPSOIL LAYER FOR
o n m z o A °'a STANDARD ALUM BAR AND ANGLE MIX X D 6 CA TE 3 CA TE O ~
SEDIMENT BASIN IS REQUIRED TO BE CLEANED OUT �_ -Q� m O O WELAND PLANTINGS W V
P PaMONA z
AND THE SITE MUST BE 90% STABALIZED PRIOR TO �' z-M - n z PEAKED ROOF TRASH RACK WITH
USE AS WETLAND BASINS. SEE APPROVED EROSION a ➢z b;b v ONE QUADRANT YACCESS
TO FIT
FOR I r�
CONTROL PLANS FOR ADDITIONAL INFORMATION. z In" N m PIPE MA AWAY ACCESS TO FIT R 60"X 9 (9) LO SI (9) LO CA L0 Q
Z z o PRODUCTS 60"I Q_GOIVGRETE RISER WITH �
0 "' Q EITHER 4"OF"6"THICK WALLS
ENDWALL °d 2. SCMS SHALL BE STABILIZED WITHIN 14 DAYS OF POMONA SUPPLY COMPANY
OR FES 6" CONSTRUCTION. VEGETATIVE SHELF SECTION
0 0 o TYPICAL PLANTING LAYOUT
3, POND SHALL NOT BE PROVIDED WITH A DRAIN AND NOT TO SCALE
WILL REQUIRED TO BE PUMPED OUT FOR NOT TO SCALE
MAINTENANCE - REFER TO APPROVED OPERATIONS
NOTE: AND MAINTENANCE MANUAL. THIS INCLUDES THE
�1 6"f~ FOREBAY AND MAIN POOL. TRASH RACK DETAIL
4. IF THE PERMANANT POOL AND / OR FOREBAY
REQUIRE DEWATERING FOR MAINTENANCE PURPOSES, NOT TO SCALE
A PUMP WITH THE CAPACITY OF 10 GPM AT A
18" IS THE MINIMUM CURTAIN WALL DEPTH, THE CURTAIN WALL 20-FOOT HEAD DEPTH SHOULD BE USED. FLOW
SHALL EXTENT TO THE BOTTOM OF THE RIP-RAP ENERGY DISSIPATOR IF SHALL BE PUMPED OUT AND DISCHARGED THROUGH
THEY ARE DEEPER. REFER TO RIP-RAP CHART FOR DISSIPATOR DEPTH. A SEDIMENT BAG WET POND CONSTRUCTION SEQUENCE: PLANTING SUMMARY
1. PRIOR TO CONSTRUCTION, OWNER SHALL OBTAIN A LAND DISTURBING PERMIT AND CONSTRUCTION DRAWING APPROVAL. CODE BOT. NAME / COMMON NAME SIZE COND SPACING
2. INSTALL SEDIMENT AND EROSION CONTROL MEASURES PER THE APPROVED LAND DISTURBING PERMIT. THE SCMS SHALL BE USED AS SEDIMENT BASINS DURING INITIAL
CURTAIN WALL DETAIL CLEARING AND GRADING. MIX A EMERGENT DEEP (6"-3" BELOW WATER LEVEL)
NOT TO SCALE 3. CLEAR AND GRUB ALL AREAS LOCATED WITHIN THE LIMITS OF DISTURBANCE. THE ENTIRE ROOT SYSTEMS OF TREES SHALL BE REMOVED DURING THIS PROCESS WITHIN
THE AREAS OF THE SCMS PE VI Peltandra virginica 18 plug 30" o.c.
4. ANY BACKFILL AREAS SHALL BE COMPACTED WITH THE SAME REQUIREMENTS AS THE DAM EMBANKMENT UNDER THE SUPERVISION OF THE GEOTECHNICAL ENGINEER.
Arrow Arum Field Locate
5. EXCAVATE FOR THE KEYWAY TRENCH ALONG THE CENTERLINE OF THE EMBANKMENT. THE KEYWAY TRENCH SHALL BE COMPACTED IN ACCORDANCE WITH 'BERM AND SOIL
COMPACTION SPECIFICATIONS'. KEYWAY TRENCH INSTALLATION SHALL BE PERFORMED UNDER THE DIRECTION OF THE GEOTECHNICAL ENGINEER. SA LA Sagittaria Iatifolia 9 plug 30" o.c. o
6. SUBGRADE CONDITIONS UNDER THE SPILLWAY PIPE SHALL BE EVALUATED BY THE GEOTECHNICAL ENGINEER AND AMENDED PER THIER REQUIREMENTS. Duck Potato Field Locate Ln
>
Uj
7. INSTALL THE NEW EMBANKMENT IN ACCORANCE WITH 'BERM AND SOIL COMPACTION SPECIFICATIONS. PO CO Pontederia cordata 9" plug 30" o.c.
8. INSTALL RISER STRUCTURE, OUTLET PIPES, JUNCTION BOX, CONCRETE COLLARS, FES AND RIP-RAP. Pickerel Weed rn
Field Locate O
9. CONTRACTOR SHALL TAKE PHOTOGRAPHS OF ALL AREAS OF THE SCM THAT WILL NOT BE VISIBLE AT COMPLETION OF THE CONSTRUCTION, INCLUDING BUT NOT LIMITED N 00
TO: RISER BASE, CONCRETE SPILLWAY PIPE, RIP-RAP LOCATED UNDER PERMANENT POOL ELEVATION, CURTAIN WALL, CONCRETE COLLAR, ETC. MIX B EMERGENT SHALLOW (3"-0" BELOW WATER LEVEL) L3 0 01
r o_
IR VI Iris 18"
vir inica - N
9 plug 30" o.c. z 00 J
BERM AND SOIL COMPACTION SPECIFICATIONS: Blue Flag Iris Field Locate W cO �
A A 1. ALL EARTHEN FILL SHALL BE CLEARED, GRUBBED AND STRIPPED OF ALL VEGETATIVE MATERIAL, TOPSOIL AND ORGANIC MATTER PRIOR TO CONSTRUCTION. JU EF Juncus effusus 9" plug 30" o.c. a C" z
° a 0
2. ALL FILL MATERIALS FOR THE EMBANKMENT SHALL BE APPROVED AND PERFORMEND UNDER THE DIRECT SUPERVISION OF THE OWNERS ON-SITE GEOTECHNICAL Soft Rush Field Locate N 0) z
PIPE ENGINEER. THE FILL MATERIAL SHALL BE FREE OF ROOTS, STUMPS, STONES GREATER THAN 6" OR OTHER QUESTIONABLE MATERIAL. 1
W1 p VV2 SA LA Sagittaria Iatifolia 9" plug 30" o.c. N x
3. PLACEMENT OF FILL FOR THE EMBANKMENT SHALL NOT EXCEED LIFTS OF MORE THAN 8" UNCOMPACTED AND SHALL BE PLACED CONTINUOUSLY ALONG THE LENGTH I- a W
OF THE EMBANKMENT. PLACEMENT OF FILL ADJACENT TO THE SPILLWAY AND ANY DRAINAGE STRUCTURES SHALL NOT EXCEED LIFTS OF MORE THAN 4". Duck Potato Field Locate W W
MIX C EDGE (0"-3" ABOVE WATER LEVEL) 5 w r 0
4. EMBANKMENT FILL SHALL BE METHODICALLY BACK-FILLED WITH HIGHLY IMPERMEABLE MATERIAL AND COMPACTED TO AT LEAST 95% OF THE STANDARD PROCTOR w 00
MAXIMUM DRY DENSITY (ASTM-698). COMPACTION SHALL BE PERFORMED SUCH THAT MOISTURE CONTENT SHLL BE WITH 1% TO 3% OF OPTIMUM MOISTURE CONTENT. LO a
AS IN Asclepias incarnata 24" plug 30" D.C. - cn o0 1-
5. COMPACTION TESTS SHALL BE PERFORMED BY THE ON-SITE GEOTECHNICAL ENGINEER DURING CONSTRUCTION TO ENSURE THAT PROPER COMPACTION LEVELS HAVE Swamp Milkweed L1 m 0 a
PLAN VIEW BEEN REACHED. Field Locate a C4 c�
CA TE Carex tenera 18M N
6. COMPACTION REPORTS SHALL ME MAINTAINED BY THE CONTRACTOR TO BE AVAILABLE TO THE DESIGN ENGINEER AND LOCAL MUNICIPALITY. plug 30" o.c. 11­- _ N
Quill sedge Field Locate - CC = I-
L 7. SOIL MATERIAL USE FOR EARTH FILL WHICH ARE CONSIDERED PERMEABLE OR WHICH EXHIBIT SIGNIFICANT SHRINK/SWELL SHALL NOT BE USED IN THE EMBANKMENT. IL z a-
-PIPE _ CH GL Chelonw glabra 18"
8. THE MINIMUM TOP WIDTH OF THE DAM SHALL BE 10' SO UNIMPEDED ACCESS AROUND THE FACILITY CAN BE OBTAINED. plug 30" o.c. o }
o �c as White turtlehead 04 a_
° _ _ _ Field Locate p
-III=III=III=III=111�11- 111�11=11�111=III- 9. REFER TO THIS SHEET FOR RIP-RAP DIMENSIONS INTO EACH POND. RIP-RAP FROM THE END OF THESE PIPES SHALL EXTEND TO THE BOTTOM OF THE FOREBAY. c�
-III-III-III-III-III- 1=III�IF=III-1 MIX D SATURATED (3"-6" ABOVE WATER LEVEL)
-III-III-III-I I I�Ti T I I I�11=1 I�I�
-III-III-III-III- 1=III�IF=111 10. KEY TRENCH SHALL BE INSTALLED UNDER THE DIRECTION OF THE GEOTECHNICAL ENGINEER. THE KEY TRENCH SHALL EXTEND A MINIMUM OF THREE FEET DEEP,
° )I� HOWEVER IT SHALL EXTEND INTO SUITABLE SOILD FOR EMBANKMENT FOUNDATIONS. KEY TRENCH MINIMUM WIDTH IS 6', REFER TO DETAIL. CA TE Carex tenera 18" plug 30" o.c. SEAL
VA C A
II II II II Quill sedge Field Locate �� -F ROB
SECTION 'A-A' FILTER CONCRETE RISER AND SPILLWAY PIPE SPECIFICATIONS: LO CA Lobelia cardinalis 18"
�' L
FABRIC Plug 30" O.C.
1. REINFORCED CONCRETE SPILLWAY PIPES SHALL HAVE A MINIMIM PIPE STRENGTH CONFORMING TO AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) C-76, Cardinal Flower Field Locate L
CLASS III STANDARDS. _ 9 .9
LO SI Lobelia siphilitica 24" Plug
2. THE REINFORCED CONCRETE SPILLWAY PIPES FROM THE RISER TO THE NEW JUCTION BOX SHALL HAVE GASKETTED JOINTS AND EACH SECTION SHALL BE BOLTED P 9 30" o.c. F\ G .V \
SUMMARY CHART FOR TO ADJACENT SECTIONS WITH STAINLESS STEEL STRAPS AND HARDWARE. Great Blue Lobelia Field Locate
STORM DRAIN CUTLET PROTECTION NOTES: 3. ALL REINFORCED PIPE SECTIONS SHALL BE PROVIDED WITH GASKETTED JOINTS AND WRAPPED WITH A LAYER OF GEOTEXIILE FILTER FABRIC ON THE OUTSIDE OF NOTES: ALL WET DETENTION BASIN PLANT PLUGS SHOULD BE PLANTED INILLIM\-��
THE PIPE. THE FABRIC SHALL MEET NCDOT SPECIFICATIONS FOR TYPE II FILTER FABRIC. REFER TO SECTION 1056 IN THE NCDOT 2012 EDITION OF THE EDITION GROUPINGS OF 5-12 OF THE SAME SPECIES. L 14 2023
( 1 ( ) 2 ( ( ( ) ( \ 1. L THE LENGTH OF THE RIPRAP APRON. OF THE STANDARD SPECIFCATIONS FOR ROADS AND STRUCTURES. THE FABRIC WRAP SHALL BE BETWEEN TWO AND THREE FEET WIDE, CENTERED OVER EACH DATE / /
D FT W FT W FT T FT L FT d50 (IN) PIPE JOINT AND COVER A MINIMUM ON ONE-FOOT LENGTH OF EACH PIPE SEGMENT.
OUT OF WEST SCM 1.25 4 9 1.5 $ 9 2. d50 = AVERAGE RIP RAP SIZE (DIAMETER) 2 24 2023
4. CONTRACTOR SHALL TAKE PHOTGRAPHS OF ALL ITEMS DESCRIBED IN THIS SECTION PRIOR TO BACKFILLING. PHOTOGRAPHS SHALL BE PROVIDED TO THE CIVIL
OUT OF SOUTH SCM 2.5 7.5 22 1.6 20 12 3. d MAX = MAXIMUM RIP RAP SIZE SHOULD NOT EXCEED ENGINEER AND GEOTECHNICAL ENGINEER.
1.5 TIMES d50 STONE DIAMETER
ISSUED FOR
4. A FILTER BLANKET OR FILTER FABRIC SHOULD BE LANDSCAPING AND PLANTING NOTES: REVIEW
INSTALLED BETWEEN THE RIPRAP AND SOIL
FOUNDATION. 1. CONTRACTOR SHALL PROVIDE A ONE YEAR WARRANTY ON ALL SCM VEGETATION THAT IS TRANSFERABLE TO SUBSEQUENT OWNERS. SHEET NO.
5. ALL RIP RAP TO BE CLASS B 2. IF A MINIMUM OF 70% COVERAGE IS NOT ACHIEVED IN THE PLANTING AREAS BY THE SECOND GROWING SEASON, SUPPLEMENT PLANTINGS SHALL
6. PROVIDE CURTAIN WALLS ON ALL STRUCTURES BE INSTALLED PER THE PLANTING CHART ABOVE.
ENTERING AND EXITING A SCM
3. RECOMMEND INSTALLING ELEVATED FISHING LINE NETTING, TREE PROTECTION FENCE OR OTHER MEANS TO PROTECT SCM VEGETATION FROM C308
DAMAGE BY GEESE OR OTHER WILDLIFE. CONSTRUCTION DRAWINGS
STANDARD PIPE OUTLET TO FLAT AREA ISSUED FOR:
4. ALL DISTURBED GROUND AREAS SURROUNDING THE WETLAND POND SHALL HAVE PERMANENT GROUND COVER ESTABLISHED PRIOR TO FINAL ■ PRELIMINARY
NO WELL-DEFINED CHANNEL ACCEPTANCE. SERICEA LESPEDEZA, WEEPING LOVEGRASS AND CROWN VETCH SHALL NOT BE INCORPORATED INTO THE GROUND COVER FOR DAM El MUNICIPAL REVIEW
EMBANKMENT, AS THESE TYPES OF VEGETATION ARE DIFFICULT TO MAINTAIN, ENCOURAGE BURROWING ANIMAL HABITATS AND PREVENT A THOROUGH ❑ BID SET
INSPECTION OF THE DAM EMBANKMENT. ❑ CONSTRUCTION DOCUMENTS