SW6231107_Plansheet - SCM Detail_20240813 (2)

WETLANDS
_)k drawn by LS
- --------------------- WETLANDS 41 checked
KINGSTON VILLAGE POND B --------
4� reviewed
------------- 248
date MAY 202 3
SEDIMENT BASIN NOTES 49
NOTE: ---------------------- ------------- job no. 20-1035-02
------ ANT] Z----------
POND IS TO USED AS A SEDIMENT BASIN DURING THE Persuant to G.S. 113A-57(2), the angle for graded slopes and fills shall be -SEEP 4
CONSTRUCTION OF THE SITE, not greater than the angle that can be retained by vegetative cover or other EMERGENCY------ COLLARS
adequate erosion-control devices or structures. In any event, slopes left SPILLWAY @ 250.5 -a
ONCE THE SITE IS STABILIZED THE POND IS TO BE CLEARED OF **SEE DETAIL 61 PVC
ALL SEDIMENT AND ANY NECESSARY REPAIRS ARE TO BE exposed will, within 7 calendar days of completion of any phase of grading, be THIS SHEET Umwdown Pipe
MADE. planted or otherwise provided with temporary or permanent ground cover,
devices, or structures ---
SEE SHEETS 12A & 128 FOR EROSION CONTROL INFORMATION. sufficient to restrain erosion. Persuant to G.S.113A(3), 18"HW
provisions for permanent ground cover sufficient to restain erosion must be INV. 247.64 6'Concrete
wall
accomplished for all disturbed areas within 15 working days or 90 calendar 48. 5 --------Z__
days (whichever is shorter) following completion of construction or Permanent Pool
Eleva on 2413.50 development.
4
.........J
245
,
***Effective October 1, 2010,the NCDENR implemented the self inspection 2 Flange
i4
y
I I Drawdowri Orifice Pipe
program for both new and old projects. This inspection program must be BAX� ELEVATION 24B 50
conducted by either: the financially responsible party, landowner or their GA131 0 -242 Cn r---4
agent. The goal is to make sure that the approved erosion and sedimentation 82'LONG(voT -f EL PrJON 24B.5 ---------- Blind Flange w� M
5;ONS A MAIN POOL J I Drilled Orifice LJ 6"DRAWDOWN DETAIL > 7-
rop or-GA a)control plan is being followed, including the installation and maintenance of 4'x4'INTERIOR DIM.CONCRETE RISER W/TRASH RACK Orifice Diameter N.T.S.
measures and the provision of ground cover in a timely manner.The FOP OF CONCRETE RISER 250.00
CONSTRUCTION SEQUENCE STORMWATER POND CONVERSION X TOP OF TRASH RACK 252.00 0
inspections report, unlike the NPIDES Self-Monitoring Report which is done
weekly, must be completed after each "phase"of the approved erosion and 1 Permanently stabilize all contributing areas draining to the stormwater pond. % INV. 18"0-RING OUT @ 247.91 1::) O
0 R 0
= -+-a _J
sedimentation control plan is complete. Not every project will have all possible 2. Remove skimmer assembly and plug hole in riser. 6"PVC PIPE W/1.5"DRAWDOWN ORIFICE @ 248.50 LLJ
OUTER BOTTOM OF BOX ELE. @ 247.41 >
phases, but a list of probable phases includes the following: 3. Remove sediment deposited during the erosion control phase of the pond. W
Regrade any pond bottom and side slopes to design elevations prior to placement of topsoil. ATTACH 6'X 6'X 2.50'ANTI FLOTATION BLOCK FROM ELE.
4. 244.91 TO ELE.247.41
Installation of perimeter erosion and sediment control measures 5. Place topsoil at depths indicated on pond section and grade. Z 0
--- --- 8"BOTTOM DRAIN ELEV.247.91 (ATTACH SKIMMER FOR
Completion of any phase of grading of slopes or fills 6. Begin planting wetlands plants along 6' shelf. ------ oe�EROSION CONTROL W1 FLEXIBLE BOOT) P-4
Installation of storm drainage facilities
7. Begin sodding all areas above the top of shelf after wetlands plants are installed.Completion of construction development ------
Establishment of permanent ground cover sufficient to restrain erosion 8. Wetlands planting shall be done between April 15th and June 30th to allow at least four
------------
months growth prior to the average first frost. --------------------------
The entire self-inspection program guide and forms can be obtained from the Land
Quality web site at: 24"HW
http://www.dlr.enr.state.nc.us/pages/sedimentation-new.htm] ----------- -- G,' OUT @ 248.26 GABION BASKET FOREBAY WEIR DETAIL
NO ------ ---------------- TOP OF WALL ELEV 25220 NOT TO SCALE TOP OF WALL ELEV.252.20
-----------------
SWIMMING ------
WADING
DO NOT -------- ---
OR STORMWATER PERMANENT POOL EL 24850
AUTHORIZED ENTER FISHING . . .......
PERSONN LONLY
0ABION GABTON
WS2 BASKETS
BASKFTS
I I I I I I I I I
W83 BASKET BASKET
WS1 TURNF.I)
TURNED
SIMILAR SPECIES OF PLANTS
OR BLOCK STRUCTURE LONGNVAYS LONGWAYS
4'x 4'PRECAST CONCRETE BOX
W
(TYP) SEE NOTE 4 POND WARNING SIGNS 181i R
20'
- NOT TO SCALE
POOL ELEV+0.5' _J -1
9
SHALLOW
ow
SH RACK NOTE:
LAND N
PERMANENT POOL E 'a
SHALL WATER TOP ci 1.LAP CONCRETE UP ON SIDES AROUND THE ID
TRASH0 RACK . m
,Id
ow cli BASE OF BOX MIN.OF 6"
2n 52.0 2.ANCHOR 6'X6'X2.50'THICK CONCRETE Ui c
RISER OVERFLOW 1i
-FLOTATION BLOCK TO RISER WITH REBAR,POOL ELEV-0.51 ANTI !''.
ELEV. 250.00 0 00- IN
AND ANCHORING SYSTEM.ANCHORING SYSTEM '0_0
2' 4'-0- ALL ASPECTS OF THE OUTLET SHALL BE SUBMITTED TO THE ENGINEER FOR 0.
- -1 CONTROL STRUCTURE SHALL C 61
Typ. PLAN BE NONCORROSIVE. APPROVAL.
3.POUR INVERT IN BOX TO ALLOW FLOW FROM rn 6- DRAWDOWN TEE W/ 1.5- ORIFICE TRASH RACK TRASH RACK > 0-
INV 248.50- MODEL#144----,, GATE TO GO TO PIPE.
0
7� t-o MCAL 120 SOFT. PLANTING DIAGRAM 6-1 Slope 4'X4' PRECAST CONCRETE
(INSIDE DIMENSIONS) 4' TOP EL.
NOT TO SCALE 6* WALL 250,00 TOP CONCRETE EL. 250.00 4E1
4'x 4'PRECAST rn
FOR ANTI FLOTATION
1. THE DAM STRUCTURE, INCLUDING FRONT AND BACK EMBANKMENT SLOPES, OF THE POND SHALL BE VEGETATED WITH ATTACH A 6'X6'X2.50' CONCRETE BOX OR FLOATING SKIMMER C3 E E
NON-CLUMPING TURF GRASS; TREES AND WOODY SHRUBS SHALL NOT BE ALLOWED. CONCRETE BLOCK APPROVED EQUAL
26.50' 18- (0-RING) RCP BARREL DISCHARGE PIPE BASE UNDER RISER. 4'
247.91 IN FROM ELEVATION -WATER SURFACE VARIES IE C11
2. ALL PLANT SPECIES SHALL BE FROM THE NCDENR-DEQ APPROVED PLANT LIST FOR SHALLOW WATER AND SHALLOW 247.41 TO 244.91,
LAND HERBACEOUS PLANTS AND AS RECOMMENDED BY A CERTIFIED LANDSCAPER OR SUPPLY NURSERY FOR THE • 6" DRAVDDVN
6" DRAVD9WN TEE V/ 1,5' ORIFICE 248,50 TEE W/ 1.5'
APPLICABLE PLANTING ZONE OR REGION. INV. 24&50
CONCRETE ANCHOR 7 ORIFICE
41 ... A
3. THE VEGETATED SHELF SHALL BE PLANTED WITH A MINIMUM OF THREE DIVERSE SPECIES OF HERBACEOUS, NATIVE 18"RCP
------- TOP OF MARKER 252.00
VEGETATION AT A MINIMUM DENSITY OF 50 PLANTS PER 200 SQUARE FEET OF SHELF AREA."
THE VEGETATED SHELF FOR POND B INV,EL 247.91
113' RCP INV. 247.91
DRAWDOWN ASSEMBLIES (RISER MOUNTED) ICE
L11111i 247.91 . Q _J
4. SIMILAR SPECIES OF PLANTS ARE TO BE GROUPED TOGETHER. IS APPROXIMATELY 1,870 SF. AT 50 1IRIF 1�cn
PLANTS PER 200 SF, 468 PLANTS FRONT VIEW S
5. PLANTS SHALL COME FROM THE NURSERY IN AT LEAST A 4 CUBIC-INCH CONTAINER. ARE REQUIRED. N.T.S. 25 <
LLJ
BOTTOM
6. THE PLANTING DENSITY SHALL BE 24" ON CENTER, WITH A MINIMUM OF 50 TOTAL PLANTS PER 200SF OF VEGETATED NOTE:CONTINUOUS 8"GATE VALVE 4 EL. 247.41
SHELF AREA. RUBBER WATER STOP AT FOR DRAINING POND PWV NN= AND LOOCAlLE ■ c/
ALL CONSTRUCTION JOINTS FOR MAINTENANCE ROD FM 94'X84# ACCESS HLE (�/O..,
CONCRETE ANCHOR VERTICAL DRAWDOWN PIPE 4' PVC (SDR 35)
7, THE FOLLOWING PLANTS ARE TO BE UTILIZED ON THE SHELF OF THE POND. OTHER PLANTS MAY BE SUBSTITUTED AT (IF LSING POURED SLAB BASE) WITH SLOTS AND GATE VALVE. CAPPED ON TOP /V
THE PROFESSIONAL DISCRETION OF THE LANDSCAPER BUT ONLY WITH APPROVAL OF ENGINEER 111,11,01111
AND NCDEQ: Ill
SECTION NOTE: TRASH RACK TO INCLUDE toll
HERBACEOUS SPECIES FOR COMPACTED EARTHEN OVERFLOW STENIMEE t THE FLOATING SKIMMER IS FOR EROSION CONTROL ANTI-VORTEX PLATES
VEGETATED SHELF COMMON NAME DAM(GRASS LINED) AND IS TO REMAIN IN PLACE DURING THE RAT ANIRE SEE DETAIL THIS SHEET PERMANENT
A.Sdepias incamata Swamp milkweed TOP OF BERM 252.20 NOT TO SCALE CONSTRUCTION OF THE PROJECT. XLTED M COW- -■
-----------
Crest of Weir
Eupatoriadelphus dubius Dwarf Joe Pye Weed 2.ONCE THE SITL IS STABILIZED THE FLOATING SKIMMER
Spillway Elev. IS TO BE REMOVED.THE 8"DRAIN ORIFICE TEE AND CAPS
25015 CAN THEN BE INSTALLED. DIMENSION& M6TERIALSi ■
Hibiscus caccineus Scaiiet rosernallow �x " LO
72'A, FLAT PLATEt 1/4'
■
RED DUCT TAPE
Lobelia Cardinalis Cardinal flower EXCAVATE POND 3 OR FLATTER AROUND CIRCUMFERENCE C)
TO THE ELEV OUTLET TO EX.GRADE ■
-ANTI-VORTEX 1911 72' FLAT ANGLE, --1/4' ■ OF PVC PIPE
SHOWN ON THE 48" PRECAST CONCRETE I I I I H­-i-r-n PLATES
GRAMINOI D51 POND SLOPES COMMON NAME ....... JUNCTION BOX C, 6' C-C. BAR STOCK, #4 (DWO)SEDIMENT CLEANOUT EL 242.50 ■ 00 0)
PLANS
DI 6' C-C HOLE SIM 318 Pi 242-00 1 N
Eremochloa ophiurodes Centipede grass LO (0
Cynodon dactylon Bermuda grass Ei 69, COATING N/A >
Ll I i:" 1111 1 11 r=1 I
F, 24' HINGED, NZA
< o 4 0
o 4-1 00
Bentonite-Soil Pond Liner 0
ALLAN"TRASH RACK DEAU 0 Z _15 I
1.The bentonite shall be a sodium bentonite with a free NOT To SCALE ■■ co - 6 LL
EXIST.GROUND/ COMPACTED EARTHEN NOTES: LO TOP OF DAM 2_5';�_20 DAM(GRASS LINED) swell of ot least 22 milliliters as measured by ASTM BOTTOM OF MARKER 236.00-EL---
ANTI-VDRTEX Standard Test Method D5890.1. COMPACT EARTHEN DAM TO 98%
4 4 TRASH RACK PLATE
SEDIMENT MARKER DETAIL
0 0 (D
2. REMOVE ACCUMULATED 2.Install and compact liner in lifts of maximum 6".
LENGTH OF WEIR 20' MAX DENSITY(ASTM D-698).
SPILLWAY EL 250. NOT TO SCALE (1) 0)
SEDIMENT FROM THE POND
Ul I I I I C C WHEN SEDIMENT REACHES A 12.:0' 3.1-iner to be minimum 9" thickness.
SOD ALL SLOPES ABOVE PERMANENT POOL EL. DEPTH OF 1.0'. RISER OVERFLOW L0 Q 0 (1)
EMERGENCY SELLWAY 3. USE REINFORCED TURF FABRIC ELEV. 250.00 4.Minirnum application of finely ground bentonite per 1-inch _r_ L)
NOT TO SCALE ON EMERGENCY SPILLWAY. thickness of constructed liner shall be 0.515 lb/sf. LL C_
TDP OF BERM 611 SHELF BELOW PERMANENT POOL 5.Geotextile filter fabric to be placed above and below the
PLANTED WITH SUITABLE WETLAND bentonite liner.
SPECIES OR VEGETATION,
RISER IS PRECAST CONCRETE BOX, BARREL RCP AND TRASH RACK
SHALL BE PLASTIC PRECAST BOX OR APPROVED EQUAL- 6.A protective compacted soil cover (minimum 6-inch) to ❑ Z
6 be placed above the bentonite liner. L
WEE DETENTION POND PLANTING 13"1 V PERMANENT POOL
CONTRACTOR TO INSTALL ON THE 6:1 SLOPED SHELF, MIF 6. 7.1-iner to be protected from drying and desiccation prior to
�3 cl
EQUAL NUMBERS OF EACH OF THE LISTED SUITABLE L4 Z W C� filling pond with water. L,
t 0 � �3 C)
C,
PLANTS. DURING INSTALLATION, GROUP SIMILAR SPECIES SEE PLAN X W u� W W W
Z " ym V) �T V �t V) M ' M
OF PLANTS TOGETHER. INSTALL PLANTS 24' O.C. IN A PLACE ANTI-SEEP COLLAR AS M � W�. U W Uj LO W
LU t AW 9 LU POND (FOREBAY AND MAIN POND) To BE - W N
CHECKERBOARD PATTERN. 8" THICK SHOWN IN PROFILE OR NO MORE M -1 7 -1 9 _J Ui n
, W W Uj C?
ul Uj U.1 M
W 3: tu CONSTRUCTED WITH BENTONITE-SOIL LINER. THIS Iz _J _1 3; 2 _J
THAN 10' UP-STREAM & DOWN- U_ W UJ Lij ,0 0J
STREAM OF THE CENTERLINE OF LINER IS TO EXTEND TO MINIMUM 24" BEYOND tG
THE EMBANKMENT. a d 0 6:1 SHELF BELOW PERMANENT POOL 0
0 2 PLANTED WITH SUITABLE WETLAND THE PFRIMETER OF THE PERMANENT POOL. 0 a
TOP OF BERM EL.252.20 F - a-
-SPECIES OR VEGETATION.
0 LL
POND SECTION 18* RCP 13ARREL 10, 3' 3' TOP OF TRASH RACK 252.00 0
NOT TO SCALE DISCHARGE PIPE 2V SLOPED 18.75' 1 3' 3' 9. 10,
EMBANKMENT
18" -SQUARE CONCRETE ANTI-SEEP TOP OF RISER 250.00 TOP OF FOREBAY HEADWALL
COLLAR. MINIMUM 2500 PSI FL 248.50 24"INV.OUT 248.26
CONCRETE DIMENSIONS 2D OeFJ I 1I1_1 I F_=I I 177�71 I
SQUARE X 8" THICK.
F-91 1=1 I 1=l I Il I 1E1 I la I 1�qLi:= 49 PERMANENT POOL EL.248.50 188.72'-24"RCP @ 0.42%
PERMANENT POOL EL,248.50
TYPICAL ANTI-SEEP COLLARS 1 0 11,--. DRAWDOWN
1 E7�-J-i-=-r T
NOTES: NTS =1 I F11 I 1-=. �I F�j I 1-�il I E_�:]I F� F-1 I I-II�1 1 F:� 6' PVC DRAWDOWN TEE W/ 1.5" DLk ORIFICE 0 248.50 1 - � 0
Il ]I= HEM 11--ill I
t-:_-i I I=_1 FEI I iEEI I E�l I 1-=-!I FE-1 I IE�Ei I F�i I F_.�I F_�. I F=_�,I 1E1 1 15 UA
I IEI F9 I i=i I F�l I FEE1 I I Fri WALL Z
:9 1 iEl I IEE l I E__";
1. CONTRACTOR SHALL VERIFY THE LOCATIONS OF ALL EXISTING BETWEEN
a =
UTILITIES PRIOR TO BEGINNING CONSTRUCTION. 1=1 I E51 lEi I 1E1 I F=_I I IEEi 1 1= FOREBAY EL.242.00
AND
24"HEADWALL D�WDOWN PTPE WITH EL 240 00 EL.242.00 < Z
< MAJN PL.241.75-\
2. ALL SITE CONSTRUCTION TO BE IN ACCORDANCE WITH ALL 18"INV.OUT 247.64 SLOTS AND GATE VALVE In IL (0)
HOKE COUNTY,NCDEQ,AND NCDOT STANDARDS AND 0 !1. U
26.6-111"RCP @ 1.00%
ff
1 -1 1 1=1 I - =�, [= - .. "I'll" _­ 1�1-=1 I!=i!
SPECIFICATIONS.
-7FF==T I
scale
t=�I I i IH71 IE�i I I I F=-1 1 f�l I ZI I F_=I 1
F-- 1:20
F��il gi -=11�1 I Ed 1 F-91 FEI I E�d I
I IH�l I El 1 F�Tl
.. ..... .. I r Field Book No.
_=J I FH�.i i 1=1 I F=_I I F_=1 I F;=-1 I F=l`­ 1111
E�!I I
Note: All construction to be in accordance with all
IE 11 H , Ill
I I Q II I F;::;l I r iHNl1=1? Dill GRAPHIC SCALE
FOR RISER ANTI FLOTATION ATTACH A -`I 1=1 I I
20 0 20 20 40 80
2.5'X6'xr.' CONCRETE BLOCK BASE SEDIMENT MARKER PIPE SHEET N/A
NCDOT AND NCDEQ Standards and Specifications. O-RING GASKET RC UNDER RISER. FROM ELEVATION itl - I I I I I
ON PIPE DISCHARGE CONCRET 247.41 TO 244.91. WET QUAIL (SEE DETAIL THIS SHEET) kml"
ANTI-SEEP COLLAR POINT_ ( IN FEET 230F23
I inch = 20 ft.
POND"B"DETAIL SHEET