SW3220302_Plansheet C09 - Misc. Detail_20220601

SKIMMER SEDIMENT BASIN
DESIGN CRITERIA
DRAINAGE
AREA < 10 AC.
ACRES)
IN.
LENGTH TO 2:1
WIDTH RATIO
MAX.
LENGTH TO 6.1
WIDTH RATIO
PLAN VIEW NOTES:
1. REFER TO NCESCPDM
SECTION #6.64 FOR
ADDITIONAL DESIGN
EMBANKMENT SPECIFICATIONS
LENGTH REGARDING SKIMMER
SEDIMENT BASINS.
2. REFER TO STD. #30.19
INFLOW 10, FOR BAFFLE SPACING
MIN. AND INSTALLATION
3. TURBIDITY CURTAIN
(CLDS #30.23) MAY BE
USED IN LIEU OF
SKIMMER POROUS BAFFLES (CLDS
DEWATERING #30.19).
MIN.
1800
AVERAGE AREA*
DEVICE
VOLUME
= 4. SKIMMER INVERT
WIDTH LENGTH
REQUIRED
PER C.
PER AC.
EMERGENCY ELEVATION = BASIN
DISTURBED)
* AREA OF BASIN WATER SPILLWAY BOTTOM FE V MIN.
SURFACE AT TOP OF PRIMARY
SPILLWAY L 5. H = SPILLWAY
325
ELEVATION - SKIMMER
SURFACE
(gQ_ FT.
INVERT ELEVATION
AREA
PER CFS
REQUIRED
Q10)
CROSS-SECTION VIEW BAFFLES
(GI
DATA BLOCK
L
BASIN
DRAINAGE
AREA
ACRES)
DENUDED
AREA
(ACRES)
QTo
BASIN
VOLUME
BASIN SURFACE
AREA
CLEANOUT
DEPTH (FT.)
H/2
H
(FEET)
Z
(FEET)
(FEET)(FEET)
LA(Fl)
W
SKIMMER
DIAMETER
SKIMMER
DIAMETER
REQUIRED
(CUBIC FT.)
PROVIDED
(CUBIC FT.)
REQUIRED
(SQ FT.)
PROVIDED
(SQ FT.)
2.34
2.03
6.6
3,654
5,679
2,157
3,538
1.25
3.5
5
10
10
2
1.4
N-1
SKIMMER SEDIMENT BASIN
ARM ASSEMBLY
"C" ENCLOSURE
WATER ENTRY UNIT
PERSPECTIVE VIEW
PVC VENT SCHEDULE 40
PVC ELBOW PIPE PVC PIPE
PVC END CAP-,
WATER SURFACE o
PVC END CAP
PVC PIPE X 1
112" HOLES IN N
PVC TEE UNDERSIDE 51 PVC TEE PLATE ORIFICE
FLEXIBLE f
HOSE SCHEDULE 40
0 PVC PIPE
END VIEW FRONT VIEW
SCHEMATIC OF SKIMMER TAKEN FROM PENNSYLVANIA EROSION AND SEDIMENT POLLUTION CONTROL MANUAL, MARCH 2O00.
"I" REFERS TO THE HEIGHT FROM INVERT OF FLEXIBLE HOSE ON SKIMMER TO THE INVERT OF THE PRIMARY SPILLWAY.
NOT TO SCALE
SKIMMER STD. N0. REV.
30.02E 12
STEEL POST 4' MAX.
I
WIRE FENCING
WASHED STONE HARDWARE CLOTH
(NCDOT #5 OR #57) BETWEEN POSTS
ZZ
/
(IF APPLICABLE)
AND COVERED BY
STONE
STEEL POST
°<G
C
f0^>
HARDWARE CLOTH
WOVEN FILTER FABRIC `tit
2�
WASHED STONE
GENERAL NOTES:
\
/
WASHED SrQNe
/
(NCDOT #5 OR #57)
1.
SEDIMENT SHALL BE REMOVED AND TRAP
#5
RESTORED TO ITS ORIGINAL DIMENSIONS
- - - - - - - - - - - - - - -
__ - III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=1
=
_
SLOW
WHEN THE SEDIMENT HAS ACCUMULATED
\
A
1 III III
=1I 1=1I 1=1I1=1I
-III II III III III -III -III -III -III -III III III III III III -III II
1=1I 1=1I1=1I1=1 I1=1 I1=1 1=1 1=1 1=1 1=1 1=1 1=1I 1=1I 1=1I1=1
-III -III-
1=1 1=ll -
- p--
TO 1/2 THE DESIGN DEPTH OF THE TRAP.
sroRAGE
AREA A
= I -III
-III I -III -III -III -III -III -III -III -III -III -III -III -III -III -III I
III=III Ill III=III=III=III=III=III=1�1=1�1=1�1=III=III=III=III=III=1 -1�1=III=_I
-III -III- w
uo
-
II ITI-I ' LL
2
REMOVED SEDIMENT SHALL BE DEPOSITED
„III
- -�I-ICI - -III-III=III=III-1' -III-III-III=III=III=III=III-III=
-III-'
IN A SUITABLE AREA AND IN SUCH A
00
-III-III-III -IiI-III-� L=1�1-' -
MANNER THAT IT WILL NOT ERODE.
ANCHOR SKIRT;
o 0
EXCAVATE TRENCH
AND COMPACT
3.
THE STRUCTURE SHALL BE INSPECTED BY
o 0
o 0
SACKFUL
THE FINANCIALLY RESPONSIBLE PARTY OR
STORAGE
AREA
o
HIS AGENT AFTER EACH STORM EVENT
R.
CATCH
AND REPAIRS MADE AS NECESSARY.
BASIN
4.
CONSTRUCTION OPERATIONS SHALL BE CARRIED
\J
OUT IN SUCH A MANNER THAT EROSION AND
Cf
WATER POLLUTION ARE MINIMIZED.
GENERAL NOTES:
MAINTENANCE NOTES:
5.
THE SEDIMENT TRAP SHALL BE REMOVED AND
THE AREA STABILIZED WHEN THE DRAINAGE
1. SEDIMENT FILTER OUTLET AND HARDWARE CLOTH SHALL BE 16 INCHES HIGH BUT NO
1. FILTER OUTLETS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR
HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND LEAST DAILY DURING
BASIN HAS BEEN PROPERLY STABILIZED.
TALLER THAN 18 INCHES.
B
PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY.
PLAN VIEW
2. HARDWARE CLOTH SHALL BE ANCHORED TO THE STEEL POSTS SECURELY USING
6.
ON LARGER DRAINAGE AREAS RIP RAP MAY
APPROPRIATE ANCHORS. HARDWARE CLOTH SHALL BE KEYED IN A MINIMUM OF 12 INCHES
2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY EVENT THAT HAS CLOGGED
BE REQUIRED UNDER THE WASHED STONE.
/
I
1
IN LENGTH AND BACKFILLED PROPERLY AS SHOWN IN ABOVE DETAIL. HARDWARE CLOTH TO
OR REMOVED IT.
BE SAME AS STD. #30.09 (19 GAUGE, 1/4" SPACING).
3. POSTS SHALL BE NO MORE THAN 4 FEET APART.
3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH HALF THE HEIGHT
OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT
$5 WASHED
STONE
a Q
4. SITE OUTLETS AT ANY POINT SMALL CONCENTRATED FLOWS ARE ANTICIPATED AND AT THE
FENCE OUTLET IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING
GRADE, PREPARED AND SEEDED.
_
FLOW
Dc ly
DIRECTION OF THE INSPECTOR.
Alm
12"
MIN.
LIP"
IIFIII='
":y�l
CATCH
BASIN
3'-4'
SECTION
A -A
SILT FENCE
OUTLET
INLET ZONE 25%
OF SURFACE AREA
30.06C
INLET ZONE 25%
GENERAL NOTES:
T
OF SURFACE AREA
1.
DRIVE 5' STEEL POST AT LEAST
y
OUTLET ZONE 25%
24" INTO SOLID GROUND.
OF SURFACE AREA
2.
USE STAPLES 1' APART
HORIZONTALLY AND VERTICALLY
TO ATTACH THE FILTER FABRIC
\
�'V\Q
/ X
TO THE WIRE FENCE.
1
3.
MINIMUM BAFFLE SPACING IS 10'.
FLOW
\ X
4.
THE FLOOR OF THE BASIN IN
THE OUTLET ZONE AND BERMS
\ '
SHOULD BE SEEDED
o
IMMEDIATELY AFTER THE BASIN
i
o
IS CONSTRUCTED.
/ eAR%/1
5.
REFER TO NCESCPDM SECTION
l / BERM
X
#6.65 FOR
SPECIFIATIONSDITION AL
/x
4'-0" MAX. SPACING X =x
(TYPICAL)
700 g/m' 5' STEEL
COIR FABRIC
OR EQUIVALENT
FL
8" X 6' TRENCH
BACKFILL AND COMPAC
FENCE AND FABRIC
BURIED IN TRENCH
LENGTH AS NECESSARY
TO GO THRU DIKE
4' MIN. PIPE
1.5' MIN. 12
FLEXIBLE PIPE
TIE DOWN 10' MAX. SPACING
TIE DOWN AT END _ _I
DIAMETER (D)
PROFILE
* AT LESS THAN 1% SLOPE
RIP -RAP
-� 0I ToH
NOT TO SCALE
BAFFLE INSTALLATION STD REV.
30.19 115
RIP RAP & WASHED STONE
FILTER BERM
(OLDS 30A 2) =
)IMENT PIT
* * * I, I EA
I'
RTH DIKE
NOT TO SCALE
STONE INLET PROTECTION STD NG REV.
30.08
KEY/ANCHOR MATERIAL AT
TOP OF SLOPE.
JERAL NOTES:
LAY BLANKETS LOOSELY AND
STAKE OR STAPLE TO MAINTAIN
DIRECT CONTACT WITH THE SOIL
DO NOT STRETCH.
* DIMENSIONS SHOWN ARE
MINIMUM, MANUFACTURED
PRODUCTS MAY HAVE ADDITIONAL
REQUIREMENTS THAT MUST BE
M ET.
SLOPE SURFACE SHALL BE FREE
OF ROCKS, SOIL CLODS, STICKS,
GRASS. MAT/BLANKETS SHALL
HAVE GOOD SOIL CONTACT.
THE DETAIL SHOWN IS FOR SLOPE
MATTING. FOR CHANNEL OR PIPE
OUTFALL MATTING SPECIFICATIONS,
PLEASE REFER TO NCESCPDM
STANDARD #6.17 AND
MANUFACTURER'S GUIDELINES.
I
FABRIC 4' ABOVE SOURCE WATER.
KEY/ANCHOR MATERIAL TO TOE OF SLOPE.
EMBANKMENT MATTING DETAIL
NOTES:
1. CLASS OR MEDIAN SIZE OF RIPRAP AND LENGTH, WIDTH AND DEPTH OF APRON TO BE
DESIGNED BY THE ENGINEER.
SEDIMENT PIT
NOT REQUIRED IF BASIN
2. REFER TO THE CHARLOTTE MECKLENBURG STORM WATER DESIGN MANUAL FOR RIPRAP
IS LOCATED DOWNSTREAM
APRON DESIGN STANDARDS.
OF PIPE OUTLET.
(VOLUME PER OLDS 30.12)
3. RIPRAP SHOULD EXTEND UP BOTH SIDES OF THE APRON AND AROUND THE END OF THE
PIPE OR CULVERT AT THE DISCHARGE OUTLET AT A MAXIMUM SLOPE OF 2:1 AND A
HEIGHT NOT LESS THAN TWO THIRDS THE PIPE DIAMETER OR CULVERT HEIGHT.
4. THERE SHALL BE NO OVERFLOW FROM THE END OF THE APRON TO THE SURFACE OF THE
RECEIVING CHANNEL. THE AREA TO BE PAVED OR RIPRAPPED SHALL BE UNDERCUT SO
THAT THE INVERT OF THE APRON SHALL BE AT THE SAME GRADE (FLUSH) WITH THE
SURFACE OF THE RECEIVING CHANNEL. THE APRON SHALL HAVE A CUTOFF OR TOE WALL
AT THE DOWNSTREAM END.
5. THE WIDTH OF THE END OF THE APRON SHALL BE EQUAL TO THE BOTTOM WIDTH OF THE
RECEIVING CHANNEL. MAXIMUM TAPER TO RECEIVING CHANNEL 5:1.
6. ALL SUBGRADE FOR STRUCTURE TO BE COMPACTED TO 95% OR GREATER.
7. THE PLACING OF FILL, EITHER LOOSE OR COMPACTED IN THE RECEIVING CHANNEL SHALL
NOT BE ALLOWED.
EXTEND TO EDGE OF DISTURBANCE -
CONSTRUCTION SPECIFICATIONS:
1. THE TOP OF THE EARTH DIKE OVER THE INLET PIPE AND THOSE 4. THE SOIL AROUND AND UNDER THE INLET PIPE AND ENTRANCE
DIKES CARRYING WATER TO THE PIPE SHALL BE AT LEAST 1.5 FEET SECTION SHALL BE HAND TAMPED IN 4" LIFTS TO THE TOP OF
HIGHER AT ALL POINTS THAN THE TOP OF THE INLET PIPE. THE EARTH DIKE.
2. THE PIPE SHALL BE FLEXIBLE WITH WATER TIGHT CONNECTING 5. FOLLOW-UP INSPECTION AND ANY NEEDED MAINTENANCE SHALL
BANDS. FLEXIBLE PIPE SHOULD BE STAKED ON EITHER SIDE. BE PERFORMED AFTER EACH STORM BY THE FINANCIALLY RESPONSIBLE
3. A RIP RAP APRON SHALL BE PROVIDED AT THE OUTLET, IF PARTY OR HIS AGENT.
EMPTYING INTO A DISTURBED AREA. 6. OUTLET PIPE SHOULD BE TAKEN OVER OR THROUGH ANY SILT FENCE,
TAKING CARE NOT TO VOID THE EFFECTIVENESS OF THE SILT FENCE.
NOT TO SCALE
FLEXIBLE PIPE SLOPE DRAIN
30.04
► olm[emay-11■1
30.20
8. NO BENDS OR CURVES IN THE HORIZONTAL ALIGNMENT OF THE APRON WILL BE PERMITTED. PLAN
9. FILTER FABRIC SHALL BE INSTALLED ON COMPACTED SUBSTAGE PRIOR TO PLACEMENT OF
RIP RAP.
10. ANY DISTURBED AREA FROM END OF APRON TO RECIEVING CHANNEL MUST BE STABILIZED. D'e sLDPE_
II®II®II®III®II®II®II�IIF_illl==1111=
USE USDA NOMOGRAPH FROM NO SEDIMENT AND EROSION CONTROL MANUAL OR CHARLOTTE
MECKLENBURG STORM WATER DESIGN MANUAL FOR DESIGN DATA. _ _ -
--IRIIII II®LIE IN_
®II€
RIP RAP SUMMARY CHART
OUTLET
La
W1
W2
T*
H
EX. FES
10
11.25
3.75
0.9
0.9
1 -6 FILTER FABRIC LAP
(IF NEEDED)
ELEVATION
NATURAL GRADE
m
�I M RIP RAP A=_
I
H 13II �I � ITS
null 1 T (THICKNESS)
NOTE: LAYER OF FILTER FABRIC
MINIMUM H-2/3 PIPE DIAMETER
* d50 (see fig 8.06 a&b "NC SEDIMENT AND EROSION CONTROL MANUAL"
dmax = 1.5 = d50 APPROVED DATE I 02/2007 SECTION B-B
T = 1.5 X dmax.
RIP RAP APRON AT PIPE OUTEALES
OTHER THAN AT SWIM STD. REV.
20.23
GENERAL NOTES:
1. AREA UNDER EMBANKMENT SHALL BE CLEARED, GRUBBED, AND STRIPPED OF ANY VEGETATION AND ROOT MATERIAL. THE BASIN AREA SHALL BE CLEARED.
2. THE FILL MATERIAL FOR THE EMBANKMENT SHALL BE FREE OF ROOTS OR OTHER WOODY VEGETATION AS WELL AS OVERSIZED STONES ROCKS
ORGANIC MATERIAL OR OTHER OBJECTIONABLE MATERIAL. THE EMBANKMENT SHALL BE COMPACTED BY TRAVERSING WITH EQUIPMENT WHILE BEING
CONSTRUCTED. SPILLWAYS SHOULD NOT BE CONSTRUCTED THROUGH FILL SECTIONS. ALL SPILLWAYS SHOULD BE LINED AND/OR RIPRAPPED.
3. SEDIMENT SHALL BE REMOVED AND TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO DEPTH SHOWN ON STANDARD.
REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA IN SUCH A MANNER THAT IT WILL NOT ERODE.
4. THE TRAP SHALL BE INSPECTED AFTER EACH RAIN AND REPAIRS MADE AS NECESSARY.
5. CONSTRUCTION OPERATION SHALL BE CARRIED OUT IN SUCH A MANNER THAT EROSION AND WATER POLLUTION IS MINIMIZED.
6. ALL CUT AND FILL SLOPES SHALL BE 2:1 OR FLATTER, UNLESS CERTIFIED BY REGISTERED GEOTECHICAL ENGINEER.
7. SEDIMENT BASIN EMBANKMENTS SHOULD BE PROVIDED WITH EROSION CONTROL AND STABILIZATION.
8. STORAGE AREA MAY BE CONSTRUCTED IN ANY SHAPE PROVIDED THE MINIMUM STORAGE VOLUME REQUIREMENT IS MET. THE BASIN SHOULD
ALSO BE ORIENTED SUCH THAT THE FILTER AND THE MAIN FLOW OF WATER AND SEDIMENT ARE ON OPPOSITE ENDS ON THE LONGER BASIN
DIMENSIONS.
9. THE LENGTH OF THE STONE OUTLET (SPILLWAY) IS TO BE BASED ON A 10 YEAR STORM.
10. WHENEVER TOPOGRAPHY ALLOWS, THE BASIN LENGTH SHOULD BE TWICE (2X) THE BASIN WIDTH, TO ALLOW FOR SETTLING.
BAFFLES SHALL BE INSTALLED IN ALL BASINS.
IT.
CLEANOUT STAKES SHALL BE PLACED IN ALL SEDIMENT BASINS AT THE LOW POINT IN THE BASIN. THE STAKES SHALL BE MARKED
SHOWING THE HALF FULL, CLEANOUT POINT, OF THE BASIN.
12. SAFETY FENCING 3' HIGH SHOULD BE PLACED AROUND ALL SEDIMENT BASINS.
13. FOR DESIGN OF SEDIMENT BASINS, REFER TO THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES,
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
14. FOR SLOPES GREATER THAN 10' IN LENGTH AND PROTECTED BY SILT FENCE AT THE TOE OF THE SLOPE, SLOPE TERRACING WILL BE REQUIRED.
15. THE BERM ON SEDIMENT BASINS SHALL BE SEEDED ONCE FINAL GRADE HAS BEEN REACHED. THE SILT FENCE MAY BE REMOVED IF PERMISSION
HAS BEEN GRANTED BY THE CITY LAND DEVELOPMENT INSPECTOR AFTER THE GRASS HAS GERMINATED AND STABLE GROUND HAS BEEN
ESTABLISHED.
16. WASHED STONE AND WIRE BACKING SHALL BE USED WITH SILT FENCE WHENEVER SILT FENCE IS PLACED AT
THE TOE OF A SLOPE >10' VERTICAL OR ALONG ANY CHANNEL OR WATER COURSE
GENERAL_ NOTES -SEDIMENT BASINS
GENERAL NOTES:
1. RIPRAP SIZE TO BE DESIGNED BY ENGINEER.
2. CHECK DAMS MAY BE USED IN SLOPING DITCHES
OR CHANNELS TO SLOW VELOCITY OR TO CREATE
SEDIMENT TRAPS.
3. ENSURE THAT MAXIMUM SPACING BETWEEN DAMS PLACES THE
TOE OF THE UPSTREAM DAM AT THE SAME ELEVATION AS THE
DOWNSTREAM DAM (SEE DIAGRAM BELOW).
CLASS B RIP
nI-III_ = A� MAXIMUM SPACING _ B
III_III]II_III_III= _
- JI_IIL111=III=III=III_IIL _11=III_III_
11L111_III=III=
A AND B ARE AT EQUAL ELEVATIONS
PLAN
CROSS SECTION
1
30.03E3
ONE
IAX
NTER
NOT TO SCALE
TEMPORARY ROCK CHECK DAM STD. NQ REV.
30.10A 115
NOTES:
1. A STABILIZED ENTRANCE PAD OF 2-3" OF WASHED STONE AND/OR RAILROAD BALLAST SHALL BE LOCATED WHERE TRAFFIC WILL ENTER OR LEAVE THE CONSTRUCTION SITE ONTO
A PUBLIC STREET.
2. FILTER FABRIC OR COMPACTED CRUSHER RUN STONE SHALL BE USED AS A BASE FOR THE CONSTRUCTION ENTRANCE.
3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC STREETS OR EXISTING PAVEMENT. THIS MAY
REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AS CONDITIONS WARRANT AND REPAIR OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT.
4. ANY SEDIMENT SPILLED, DROPPED, WASHED, OR TRACKED ONTO PUBLIC STREETS MUST BE REMOVED IMMEDIATELY. ANY AGGREGATE TRACKED INTO THE ROADWAY MUST BE
SWEPT BACK ONSITE ON A NIGHTLY BASIS.
5. WHEN APPROPRIATE, WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A PUBLIC STREET. WHEN WASHING IS REQUIRED, IT SHALL BE DONE IN AN AREA
STABILIZED WITH CRUSHED STONE WHICH DRAINS INTO AN APPROVED SEDIMENT BASIN SEE STD. NO. 30.11B.
6. CDOT MAY REQUIRE A STANDARD COMMERCIAL DRIVEWAY (STD. 10.24 & 10.25) TO ACCESS THE CONSTRUCTION SITE IF THE DRIVEWAY IS ON A THOROUGHFARE, OR ON ANY
STREET WITH AN EXISTING SIDEWALK TO REMAIN OPEN DURING CONSTRUCTION.
7. FOLLOW WORK AREA TRAFFIC CONTROL HANDBOOK (WATCH) FOR SIDEWALK CLOSURE OR DETOUR/DIVERSION.
0
EXISTING GROUND
SOIL STABILIZATION FABRIC
UNDER 2-3" OF WASHED STONE
PUBLIC STREET
Ex. CONC.
DRIVEWAY APRON
WITH SIDEWALK AT
BACK OF CURB
(IF RETAINED DURING
CONSTRUCTION.)
w
U
m
d
NOT TO SCALE
STABILIZED CONSTRUCTION ENTRANCE STD NO REV.
30.11A 115,
6' MAX.
WOVEN FILTER FABRIC
,o
STEEL POST
FFLOWILTER FABRIC
u=Q
C
O
S
F
4"
ANCHOR SKIRT;
EXCAVATE
TRENCH AND
COMPACT
BACKFILL
GENERAL NOTES:
1. WOVEN FILTER FABRIC BE USED WHERE SILT FENCE IS TO REMAIN FOR A PERIOD OF
MORE THAN 30 DAYS.
2. STEEL POSTS SHALL BE 5'-0" IN HEIGHT AND BE OF THE SELF -FASTENER ANGLE STEEL
TYPE.
MAINTENANCE NOTES:
3. TURN SILT FENCE UP SLOPE AT ENDS. 1. FILTER BARRIERS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY
4. ORANGE SAFETY FENCE IS REQUIRED AT BACK OF SILT FENCE WHEN GRADING IS OR HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING
PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY.
ADJACENT TO SWIM BUFFERS, STREAMS OR WETLANDS (REFER TO SWIM BUFFER
GUIDELINES). THE COLOR ORANGE IS RESERVED FOR VISUAL IDENTIFICATION OF 2. SHOULD THE FABRIC DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END
ENVIRONMENTALLY SENSITIVE AREAS. OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL IS NECESSARY, THE
FABRIC SHALL BE REPLACED PROMPTLY.
5. DRAINAGE AREA CAN NOT BE GREATER THAN 1/4 ACRE PER 100 FT OF FENCE.
3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH APPROX. HALF
6. SLOPE LENGTHS CAN NOT EXCEED CRITERIA SHOWN IN TABLE 6.62A NORTH CAROLINA THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL. AFTER THE SILT FENCE IS REMOVED SHALL BE DRESSED TO CONFORM TO THE
EXISTING GRADE, PREPARED AND SEEDED.
7. DO NOT INSTALL SEDIMENT FENCE ACROSS STREAMS, DITCHES, WATERWAYS OR OTHER
AREAS OF CONCENTRATED FLOW.
NOT TO SCALE
TEMPORARY SILT FENCE STD. NO. REV.
30.06A 1 5
FOR LATE WINTER AND
SOIL AMENDMENTS:
EARLY S P R N O:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 750 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
MULCH:
RYE (GRAIN) - 120 LB/ACRE
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
ANNUAL LESPEDEZA (KOBE) - 50 LB/ACRE
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
(OMIT ANNUAL LESPEDEZA WHEN DURATION
TOOL
OF TEMPORARY COVER IS NOT TO EXTEND
BEYOND JUNE)
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING
SEEDING DATES:
EROSION OR OTHER DAMAGE
JAN. 1 - MAY 1
FOR SUMMER,
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 750 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
GERMAN MILLET - 40 LB/ACRE
MULCH:
(A SMALL -STEMMED SUDANGRASS MAY BE
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
SUBSTITUTED AT A RATE OF 50 LB/ACRE)
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
TOOL
SEEDING DATES:
MAY 1 - AUG. 15
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING
EROSION OR OTHER DAMAGE
r
FOR ALL:
SOIL AMENDMENTS:
/-1
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE
AND 1,000 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE:
RYE (GRAIN) - 120 LB/ACRE
MULCH:
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A MULCH
SEEDING DATES:
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
AUG. 15 - DEC 30
TOOL
MAINTENANCE:
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH 50 LB/ACRE OF NITROGEN IN
MARCH. IF IT IS NECESSARY TO EXTEND TEMPORARY COVER BEYOND JUNE 15, OVERSEED WITH 50
LB/ACRE KOBE LESPEDEZA IN LATE FEBRUARY OR EARLY MARCH.
FOR ADDITIONAL INFORMATION, REFER TO NCDENR
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL (ESCPDM), SECTION 6.10.
FOR PERMANENT SEEDING SPECIFICATIONS, INCLUDING
SEED BED PREP, SEASONAL LIMITATIONS FOR SEEDING OPERATIONS, THE KINDS OF GRADES OF
FERTILIZERS, THE KINDS OF SEED, AND THE RATES
OF APPLICATION OF LIMESTONE, FERTILIZER, AND SEED, REFER TO NCDENR ESCPDM SECTION 6.11 AND
THE CHARLOTTE LANDSCAPE CONSTRUCTION STANDARDS SECTION 04200 SEEDING AND SODDING OF TURFGRASS.
TEMPORARY SEEDING SCHEDULE
STD N0 REV.
11
30.17 9
1" REBAR FOR BA -
REMOVAL FROM INLI
(REBAR NOT INCLUDE[
OPTIONAL OVERFLOW
SILTSACK
DUMP LOOPS
(REBAR NOT INCLUDED)
CF�cTti, a a o 4
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d
a a
v 0
USE SILT SACKS ON ALL INLETS
CURB OPENING
EXPAI
R ES
WIDTH = W
SIDE VIEW INSTALLED
SILTSACK® SPECIFICATIONS
NOTE: THE SILTSACK@ WILL BE MANUFACTURED FROM A WOVEN POLYPROPYLENE
FABRIC THAT MEETS OR EXCEEDS THE FOLLOWING SPECIFICATIONS.
HI -FLOW SILTSACK®
(FOR AREAS OF MODERATE TO HEAVY PRECIPITATION AND RUN-OFF)
PROPERTIES TEST METHOD UNITS
GRAB TENSILE STRENGTH ASTM D-4632 265 LBS
GRAB TENSILE ELONGATION ASTM D-4632 20 %
PUNCTURE ASTM D-4833 135 LBS
MULLEN BURST ASTM D-3786 420 PSI
TRAPEZOID TEAR ASTM D-4533 45LBS
UV RESISTANCE ASTM D-4355 90 %
APPARENT OPENING SIZE ASTM D-4751 20 US SIEVE
FLOW RATE ASTM D-4491 200 GAL/MIN/SQ FT
PERMITTIVITY ASTM D-4491 1.5 SEC -1
DETAIL OF INLET SEDIMENT CONTROL DEVICE
WITH CURB DEFLECTOR
OIL-ABSORBANT SILTSACK®
(FOR AREAS WHERE THERE IS A CONCERN FOR OIL RUN-OFF OR SPILLS)
DEPENDING ON YOUR PARTICULAR APPLICATION, THE SILTSACK& CAN BE MADE FROM
EITHER ONE OF THE ABOVE FABRICS WITH AN OIL-ABSORBANT PILLOW INSERT OR,
MADE COMPLETELY FROM AN OIL-ABSORBANT SILTSACK, WITH A WOVEN PILLOW INSERT.
SILTSACK - INLET PROTECTION
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REVISIONS:
A2022-3-29 1ST EC REVIEW
-5-13 NCDEQ COMMENTS
a2022
C09 - DETAILS.DWG
PROJECT NUMBER: 221011
DATE: 2/4/2022 DRAWN BY: KIW
12
SHEET C09 OF
C09 - DETAILS.DWG - PLOT: Kennedy - TUE. 5-24-2022 3:11 PM