C401 Site Details_20190718

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L.CaGeRa
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�— 615 St. George Square
;: .. NOTES:
Suite 300
• MEASUREMENTS ARE TO THE INSIDE Winston-Salem, NC 27103
CRESTS OF THE CORRUGATION
336-842-4065
r • DIMENSIONS ARE SUBJECT TO C#0430
MANUFACTURING TOLERANCES labellapc.com
'f NOTE:
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THE SETTLING PONDS WILL BE REMOVED WHEN THE
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C .. _ .. Q RECLAMATION PLAN IS COMPLETED IN THE FIELD.
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1Go' WIDTH 1. SKIMMER IS TO BE A SURFACE DEWATERING DEVICE $ °
10' SUCH AS BMP SKIMMER OR APPROVED DEVICE.
TOP OF BERM 22052 ti
•,I , v ':I FouNBnnoN WWATER1 SURFACE ELEVATIONELEVATION - 595 FT •
0 2. SKIMMER SHOULD RISE TO LEVEL OF WEIR HEIGHT IN ,•
BY OTHERS 2.5 11T .19 Fr 1 . TEMPORARY BASIN OR TO RISER INLET. �� A' '1'GIN6�
BorroM VENT ORIFICE ACCESSIBLE �i�9G� Q�O``'�
` ELEVATION 3. ROPE ATTACHED TO SKIMMER TO HELP KEEP CLEAN. THROUGH DOOR q•STIM �
. .. ,. 21'-,0.,. t
4. SIZING OF ORIFICE TO ALLOW FOR DEWATERING TIME
24'-0"ARCH SPAN
TAILING POND F1 OF 24-72 HOURS.
10' 100' WIDTH Y TOP OF BERM
t, I ELEVATION 591 FT T
WATER SURFACE I
•. r 111- T71 1
2.
BOTTOM
ELEVATION
HEABWALL
BY OTHERS
TAILING POND J2
BRIDGE PLAN SCHEDULE 40 PVC
RIGID FLEXIBLE JOINT FLOAT
NOTE
T/GRADE EACH ACH L
E TAILING POND SHALLHAYS A MINIMUM FREEBOARD OF RETRIEVAL ROPE
1.0 FEET AND SHALL HAVEVE DIMENSIONS AT THE SURFACE OF OUTLET END: CONNECTION
PRELIMINARY FOUNDATION DESIGN NOTES: 500 FEET LONG BY 100 FEET WIDE. TO OUTLET PIPE OR RISER
• PRELIMINARY SIZING BASED ON THE SLOPES OF THE OUTER SIDES OF THE TAIUNG PONDS
ASSUMED 8000 PSF BEARING CAPACITY, WILL VARY DEPENDING ON THE SURROUNDING SURFACE. ©2019 LaBella Associates
T 4'-1" OF COVER, AND CAT 773 LIVE BARREL PIPE LONGER THAN SHOWN.
y LOADING NOT INCLUDED WITH SKIMMER SUPPLIED BY USER.
+ SCOUR NOT CONSIDERED IN THIS
v PRELIMINARY DESIGN
4 FLOW
LOW
LNE FINAL DESIGN MAY VARY ALAMANCE
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24-D"ARCH SPAN a SKIMMER DETAIL Mr. Chad Threatt, VP
CROSS SECTION A-A 4 TAILING POND DETAIL c�01 NTS
C 401 NTS
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a CONTECH METAL ARCH BRIDGE CULVERT j
C 401 NTS
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BAFFLES WITH METAL T-POST, WOVEN WIRE NOTES:
5'-0. RETRIEVAL BAFFLES WITH METAL T-POST, FABRIC BACKING AND COIR FIBER NETTING 1. DRIVE STEEL FENCE POST AT LEAST 18 �n�Ey Mine
ROPE SKIMMER WOVEN WIRE FABRIC BACKING INCHES INTO SOLID GROUND.
OF DAM AND COIR FIBER NETTING SEE BAFFLE DETAIL SF-F' r
2. WOOD POST ARE NOT ACCEPTABLE,
PROTECT WEIR WITH FILTER C '- (THIS SHEET) �,O�,VF,�� 3. DIRECT WATER TO TOP OF BASIN USING
12" _ i-{R-I �O STABILIZED DITCH, SLOPE DRAIN PIPE
FABRIC AND RIPRAP ry'� z � w�OSTAPLESORED OR OTHER APPROVED METHOD.
FILTER FABRIC
4" OR 6" PVC n I SKIMMER WITH RETRIEVAL ROPE
m ' TOP OF
;AD WIN i ' WO r" -' - - a0 - - _ DAM 5'-0" •'"�
5'x3'xi8"
6" STONE APRON
WITH FILTER FABRIC LENGTHNOTE
1 USE FOR DRAINAGE AREAS NOT EXCEEDING FIVE ACRES. SKIMMER BASIN CROSS SECTION
2. EARTH BERM SHALL BE STABILIZED W/SEEDING ACCORDING TO -- o BAFFLE DETAIL
TOWN SPECIFICATIONS. -- -- --
LINE WEIR WITH RIPRAP NO: DATE: DESCRIPTION:
TOP OF DAM _ TOP_ OF DAM REVISIONS
DESIGN OF SPILLWAYS _ _ CORR FIBER MATTING.
� _ - - ZIP T1ES.SECURE WITH NYLON
DRAINAGE AREA WEIR LENGTH 1 WEIR J1L-iTL I! [U�T "'I '--
(ACRES) (FT) LENGTH q Ill=ill--IL [L�, WEIR PROJECT NUMBER: 2190335
1 4.0
2 6.0 I=� u� W fl-i ��. 36„
s DRCH AND BURY KCG/ATC
FILTER FABRIC ��'� m � WITH Fl�ER FABRIC �, MIN.
-� _ T = - �_ III—ID-TIT- -{SNP- FILTER FABRIC EDGE ZIP TIES DRAWN BY:
3 8.0 - (MIN. 12" OF FABRIC) i
4 1 ll.0 �I 2 `1ll= mP'
REVIEWED 8Y:
DIMENSIONS SHOWN ARE MINIMUM P PE [--[L� FLOW DIRECTION MAPLES PAS
m{ll�m _GROUND _
-11I I LI III=1I I III I I1=1I{—III LI I I 1(=III'__ ISSUED FOR:
WEIR CROSS SECTION _
� CONSTRUCTION
-"'- T I I1=1I�i I I III-T-1Zi-I NI I I1 III_
T—Iu Iii_iIITTLI III-I ](1 ]Z�I
MAINTENANCE " ITN LII-IT MIN. DATE:
PERSPECTIVE VIEW WOVEN WIRE FABRIC. it=T�
• INSPECT TEMPORARY SKIMMER BASIN AND EMPTY SKIMMER OF ALL DEBRIS AFTER EACH PERIOD OF SIGNIFICANT RAINFALL REMOVE SECURE WITH NYLON ZIP TIES. I F 7/18/19
SEDIMENT AND RESTORE BASIN TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN II I I I-�
DEPTH OF THE BASIN. PLACE THE SEDIMENT THAT IS REMOVED IN A DESIGNATED DISPOSAL AREA. REPAIR BAFFLES.
• CHECK THE STRUCTURE FOR DAMAGE FROM EROSION OR PIPING. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY TO ENSURE IT S(lrTt DRAWING NAME:
IS A MINIMUM OF 1.5 FEET BELOW THE LOW POINT OF THE EMBANKMENT. IMMEDIATELY FILL ANY SETTLEMENT OF THE EMBANKMENT T-POST
m TO SLIGHTLY ABOVE DESIGN GRADE. ANY RIPRAP DISPLACED FROM THE SPILLWAY MUST BE REPLACED IMMEDIATELY.
o • STABILIZE THE EMBANKMENT AND ALL DISTURBED AREAS ABOVE THE SEDIMENT POOL AND DOWNSTREAM FROM THE BASIN IMMEDIATELY
AFTER CONSTRUCTION WITH SEEDING AND MATTING, AS NEEDED.
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SITE DETAILS
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E 2 TEMPORARY SKIMMER BASIN 2 OF 2 1 TEMPORARY SKIMMER BASIN 1 OF 2 DRAWING NUMBER:
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