C301A EC Plan

FLOATING SKIMMER t
STONE OUTLET
r / O f \ DEVICE (TYP.)
.r
LEGEND
EXISTING PROPERTY LINE
- -
PROPOSED PROPERTY LINE
- -
EXISTING BUILDING
L_J
PROPOSED BUILDING
MINE PERIMETER
PROPOSED SECURITY FENCE
—x—x—x—x—
TEMPORARY DIVERSION DITCH
TDB
TEMPORARY SILT FENCE
PROPOSED ENERGY DISSIPATOR
TEMPORARY CHECK DAM
v
MINE HAUL ROAD
DISTURBED AREA
F J
STONE OUTLET
p
TEMP. SLOPE DRAIN
STONE INLET PROTECTION
r,
S.D.O
STORM DRAINAGE OUTLET
F✓ /
"�,� / -7 o T ' \ SKIMMER BASIN #15/ SEE DETAIL
TEMP. SEDIMENT r f _ I I / / S.D.O. #15 " 17/C502
- - - b FENCE (TYP.) r'' Ev
\ f l w f ,
SEE DETAIL 2/C501 ,.- �- ,i \ / -►�-"
LIMITS OF r
/ ,r
/ f DISTURBANCE �..-
CLASS I RIP RAP\" s
�_ 2'Wx6'Lx2'W \ \\ ,J^-"
11�21' THICK F
t�/(� ICLASS I RIP RAP
(1^�FLOATING SKIMMER N ® \ \� v 2'W x 6'L x 2'W
lJ T 8' WIDE SPILLWAY SI
/ DEVICE \Q ® \ I \ \ I ( k \ 21" THICK
STONE OUTLET (TYP,) ,'
SEE DETAIL 7/C502 SKIMMER BASIN #14/ \ ► ` Y -' __ T \ ` % ` 1 590 POROUS BAFFLES
INV.=597.31
S.D.O. #14,,,,, .. �"• ✓ ✓ 64.00 LF (TYP)
O 1 v PR �y STONE OUTLET (TYP.) / ' I OF 15" RCP
SEE DETAIL 7/C502
12' WIDE SPILLWAY r -- -�" / ' LIMITS OF `
/ r DISTURBANCE \
POROUS BAFFLES
f
SKIMMER BASIN #14 ` f-7
BOTTOM ELEVATION: 604.00 FES 12 �j "WATER LEVEL ELEVATION: 607.00 / INV.=608 / CLASS I RIPRAPTOP DAM ELEVATION: 608.50 /' STONE INLET 3.75'Wx10.5'Lx14.25'W 27"
'
TOP OF DAM WIDTH: 5PROTECTION i
I(( y WEIR LENGTH: 12' l / THICK WITH NCDOT TYPE
2 FABRIC UNDERNEATH
MIN SURFACE AREA: 3,924 SQFT
MIN VOLUME: 9,360 CUFT FES 3 \
r ORIFICE DIA: 1.50" i' o s ,....."� \ -. INV.=600.. \ \t
r \ SKIMMER SIZE: 3.00" r CLASS I RIPRAP ......�� _ i - SKIMMER BASIN 1BOTTOM ELEVATION:
15 59
3.75'Wx9'Lx10.25'W 27" \® "S x \ 3..50 THICK WITH NCDOT TYPE WATER LEVEL ELEVATION: 590 \
III 2 FABRIC UNDERNEATH \ \ -- -- TOP DAM ELEVATION: 595.50
TOP OF DAM WIDTH: 5' \
�4 WEIR LENGTH: 8'
__.. MIN SURFACE AREA: 7,800 SQFT
- MIN VOLUME: 21,016 CUFT
' / 1 STONE INLET 64.00 LF \ \ ~~J
OF 15' RCPORIFICE DIA: 1.75" \ \
PROTECTION FES 11 l I \ SKIMMER SIZE: 5.00"
�\
f F INV609_ .., ....._,,
� .=�.60
LIMITS OF
LIMITS OF �' _ DISTURBANCE \ \
I i DISTURBANCE
CHANNEL FROM EXISTING 18' RCP TO FES 2 �` `� /' ^•.,� ''
NTS
SKIMMER
8' WIDTH OF CURLEX I 1 / \ 1 \ BASIN
S.D.O. EXCELSIOR MATTING OR / / — _
APPROVED EQUIVALENT
(� FES 2 TO STA. 6+50 AND ACCESS ROAD ST SIDEI FROM STA 7+00 TO 14+oo--
' 2 2 \AND \ '" �'~ �''
f / - DITCH #3 -SEE
,�-�-1I � \ / / �"� �,, "' DETAILS FOR
` 8' WIDTH OF CURLEX I -` ""- �"`� -.,, STABILIZATION
Z EXCELSIOR MATTING OR \
W, 1
EXIST. 12" RCP APPROVED EQUIVALENT o
/ BOTH ENDS BURIED
\ \ \ INV. 610.89
(BURIED) ( ` o
�\
3 3 _630 PROP. LOCATION OF
0
\T SEPTIC TANKS ` o /�
t 1 EXIST. 18" RCP �® `
\ / } INV. = 610.89 z
` #57 WASHED STONE &
INV. = 610.49 f I 1 WIRE INLET PROECTION o O ',
DITCH #8 -SEE (BURIED) /r ' STONE OUTLET r - o
DETAILS FOR �� (TYP.) I SKIMMER BASIN #18 r
/ STABILIZATION SEE DETAIL BOTTOM ELEVATION: 614.50 / r` CLASS I RIPRAP
7 C502 WATER LEVEL ELEVATION: 617.50 ' 3.75'Wx9'Lx10.25W 27"
CLASS I RIPRAP / TOP DAM ELEVATION: 619.00 - PROP. LOCATION OF \ THICK WITH NCDOT TYPE D
/r 6'Wx14'Lx2O'W 27" THICK I TOP OF DAM WIDTH: 5' ,, WELL AREA 2 FABRIC UNDERNEATH`
WITH NCDOT TYPE 2 19.7 7' WIDE WEIR LENGTH: 7'
FABRIC UNDERNEATH / \
FES 2 SPILLWAY \ MIN SURFACE AREA: 2,345 SQFT
\ INV. = 611.79 ` MIN VOLUME: 1.25" CUFT ! f, / dp o FES 13 ' ` F_
o ORIFICE DIA: 1.00" DITCH 1 -SEE , —
# ,✓ `�`, INV.=624.48
CLASS TRIP RAP SKIMMER SIZE: 2.00" DETAILS FOR \
J /STABILIZATION \
r 2'W x 6'L x 2'W FLOATING SKIMMER \ ` 48.03 LF ' f
\ 21" THICK DEVICE t f r ~ OF 15" RCP 1
SKIMMER BASIN #18/
EX. EOP / S.D.O. #18 DI 2 (�
ELEV. = 616.09 i ( ( - o \ \ GRATE- 629.20 z
\ o \ 1 - o s33.as q 1 INV.=626.95 % f
POROUS BAFFLES ( Low-
- __ 0 4
10, X 70' �~ o (TYP) �---/ rO s33 1 \ #57WIRE
WASHED STONE & I--I-�
SIGHT TRIANGLE ! -;33pi ` WIRE INLET PROECTION ` r r �/ I
rr„ / o c0 g36
DI 1 ` _ SEE STONE
DETAIL 7/C502) rr" r n
✓ ROCK PIPE 630 GRATE=632.50 , \ / CA
f INTLET , x 80' OF 24" RCP o INV.=630.25 TEMP. SEDIMENT 0
/ PROTECTION 01.0% k / f \ FENCE (TYP.) \
g n 126.9I LF \
✓I 2p ® " _> SEE DETAIL 2/C501
CLASS I RIP RAP OF 15RCP ( r \ , FlowCD
2'W x 6'L x 2'W
FES 1 1 / / \ \ `\ �' 40 - LIMITS OF
~ \ \
E BASIN 21" THICK INV. = 612.5 O / / // J 1 l \ \ \ N DISTURBANCE
SK
IMMER R#17 5' WIDE
BOTTOM ELEVATION: 614.00 r SPILLWAY
WATER
TOP LEVEL
ELEVATION: 61
ELEVATION:
7.00 LIMITS OF
TOP OF DAM WIDTH: 5' C` / DISTURBANCE WEIR LENGTH: 5'
„r /,% DITCH #4 - SEES , 0 � \
/ r f f f \DETAILS FOR `.
MIN SURFACE AREA: 4,072 CUFF / SKIMMER BASIN #17 / d / STABILIZATION STONE OUTLET TYP.
DITCH 2 - SEE r (TYP.) TEMP. SEDIMENT }
MIN VOLUME: 9,072 CUFF \ FLOATING SKIMMER /S.D.O #17 f DETAILS FOR ( It SEE DETAIL 7/C502
STABILIZATION ORIFICE DIA: 1.50" DEVICE POROUS BAFFLES r ! r" FENCE (TYPJ
SKIMMER SIZE: 3.00" o (NP) " r / l
,f i `( I ' � ( ` M \ SEE DETAIL 2/C501
71
f/ d C%
f / i R / \ r f ` TEMP. SEDIMENT \ \
Channel Side Sloe Bottom Width Discharge Bottom Stabilization ' FENCE TYP.
Description Max. Bed Slope p B Otto Stabl 1 atlon Side Stabilization r // / ( )
Number (H:V) (ft) (cfs) Method Method �✓ , ,,i / \/ � SEE DETAIL 2/C501 20' \
1 FES 2 to STA. 6+50 2.90% FMS 1 TO STA- 6+50 AND A .. �� ROA E0.S SIDE) FROM SSA 8+50 TO 14+00 /r /
3:1 2 7.05 Curlex I Curlex I \
2 FES 1 to Sta. 6+50 2.96% 3:1 2 12.66 Curlex I Curlex I \ AND (A-- / �% �/ 1 r ` \ \ .
3 West Side Access Road Sta. 7+00 to 14+00 4.10% 3:1 2 3.5 Curlex I Curlex I
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AGGREGATES, LL
Mr. Chad Threatt, VP
1
3131(11
NCDEMLR COMMENTS
N0:
OATE:
DESCRIPTION:
REVISIONS
PROJECT NUMBER:
2190335
DRAWN BY:
KCG/ATC/BWS
REVIEWED BY:
PAS
ISSUED FOR:
CONSTRUCTION
DATE:
4/8/20
DRAWING NAME