20210825_ADI_Received_Maps

SITE DATA TABLE
OWNER, CHARLES DAVID ANDREWS
2700 NC HWY 72 WEST
LUMBERTON, NC 26358
PIN:035500316187
DEED BOOK: 0696
PAGE #: 061
TOTAL PARCEL. AREA: 48.0 AC +1-
EXISTING ZONING: RA
PROPOSED USE: BORROW SOURCE
INTIAL PIT
7.2 AC
PIT EXPANSIONS
11.3 AC
PLANT SITE
3.3 AC
UNDISTURBED BUFFER
11.7 AC
OTHER MISC. AREA
9.3 AC
(BERMS: TEMP. DIVERSIONS, ETC.)
TOTAL PROJECT AREA
42.8 AC
LEGEND
CONDITIONAL USE
PERMIT BOUNDARY
-
WETLAND
PROPOSED PIT
BUFFER
PLANT SITE
AFFECTED AREA
CREEK
BERM
+ + + + + + + +
*+++++•++
it
j 4GENERAL NOTES:
SIN LETARY M as4s IT 9L1E r �oR�°� CCUffD RESIDENCE 1. EXISTING TOPO IS STATE LIDAR FROM BLADEN COUNTY GIS DATA.
/ zON€NG: RA r ,, s\ e\r> �o��\� 652 LT iJz FROM PErzmtlr BOUNDARY 2. BOUNDARY PER BLADEN COUNTY GIS.
3. STREAM LOCATION BASED ON USGS MAPPING AND AERIAL VERIFICATION,
5. SITE TO BE RECLAMATOD TO MEET THE NCDEQ MINE PERMIT RECLAMATION BOND REQUIREMENTS.
SEE PHASE RECLAMATION PLANS.
6, AS PART OF THE NCDEQ MINE PERMIT THE OWNER IS REQUIRED TO BOND THE RECLAMATION OF
✓" 398OUP+FD REST EN r9LT BOUN6HRY THE AFFECTED AREA OF PROJECT BASED ON THE STATE MINING PROGRAM REQUIRED AMOUNTS.
/ } 7, THE TEMPORARY ERECTION AND OPERATION OF PLANTS AND EQUIPMENT SHALL COMPLYIWITH THE
z16 Oo� DISTRICT DIMENSIONAL REQUIREMENTS OF THE RA ZONING DISTRICT.
' ,; •`` o �5 ��� 0��.� ���° g� 8. DUST SUPPRESSION ON ACCESS ROADS AND PLANT SITE SHALL MEET THE STANDARDS SET FORTH
% i\ Q\�✓p�\�\�� o�\�� IN THE NCDEQ MINE PERMIT.
y\�
A PROPOSED 50 FOOT WIDE MINIMUM UNDISTURBED BUFFER WITH AN ADDITIONAL 50 FT WIDE x 6.25
FT HIGH VEGETATED BERM FOR A TOTAL OF 100 FOOT MINIMUM BUFFER WILL BE MAINTAINED
BETWEEN THE EXCAVATION AND ANY ADJOINING PROPERTY BOUNDARY.
EXISTING SI FE ACCESS (TYP r 10. WETLAND AND STREAM LOCATIONS PER WETLAND SOLUTIONS, LLC,
EDGE MARY BETLi 'Ar;GATF a oC2\-ICCUPIED RESIDENCE
PIN#: 036500227319 a 'q / 5 FT +;- FROM PERMIT BOUNDARY
ZONING - RA
C.p�tb\
+ + pY 5• 30' ACCESS ROAD (TYP
+ +
® + +
J t + + Vo
{ + + +
++*+ ` a .�++++++++ ++++ r n + + 0 VEGETATIVE BERM (rYP)
\
++++++
�
� H 6.25 FT++ +++ 51DESLOPE=a:9
+++ + +
++++ I+++
MTATIVE BUFFER (iYP)
I ++
+++++ € +
++++
r +++++++++++2 VEGETAT€E BERM (TYPr
S€NGLETARY KODEY L
* *H=6.0 FT I ++++ P!N# 035500424055++ +++SIDE SLOPE= 21 ++ +++ I I I ! l I I I I I I I I I I ! ++ ZONING: RA
i
,\ e 2 �'� e' ••t• \ ++++*++++ � /
y� \ FUTURE ++ 11 I€ I I I I I i I I I I I!+++
f + + + RECYCLE
AREA DEBRIS BINS
COMMERCIAL DEVELOPMENT ++++ I i L I I I � I! I I I I I I!!++ +� RECYCLE AREA (TYP)
\++++++ I f 19 PLAN SIT i i I++++ OCCUPIED RESIDENCE /,
CCUPIED RESIDENCE 02i 5.2 AC "+'I- + + +++++ � 1101 FT +1- FROM PERMIT BOUNDARY / �.
® ++ I I I I I=iIT�IRE I I
\G �O 877Fr+1;,�?tJIv1PERMITEICkUNUARY y y'� S s+++++ I I I! I I I ++++++
as Asa +++++ ! I I PIT EKPANSION i I 1 ++++ /
f- I i 1
! I I 3 + +
CaOOp^ 2Co�i�G ++k++ i I I I l I I¢I I I I ++++++� D'VLIDE F /
o �� \+++ I {
OCCUPIED RESIDENCE 2 0° w9 + + PIT ROAD (TYPj
47D,(T tl- FROM PERMIT BOUNDARY r y C +++ I I I I I I I I 1 1 I I I ++++
A `*+ *+ I l l l l l l l l l i l I I+++
+*++++++ t ROMERO HEEUI
\ q ° +++! 1€ I I I I I I l I€ I I I ++++ PiNZONING: RA
51186s �`
ccuo'IE17RESiDENCE, 0 r 9 iii
Ag6 FT+1- FROM I,F-; MIT BOUNDARY y p2p i +++ + *+ /
/ ++
AFFECTED AREA (TYPE, ++�++ I I i 1 L I I I I I
+ + + + + + + + + + ++++++� PROPOSED OCCUPIED RE51 r NCE /
O \ �� s+ + + + + + I I I i I I I I + + + DARY TYP
• ; ,4`` G� o, y ,, , \ 31.8 AC +I- �_ + + + + + + + I 1 ! ! I I I + + + MI�JE PERMIT BOUII. ( } 916 FT+I- FROM PERMIT BO,U�ARY
\ \ P \ y + + + + + +' + + PER BLADEN COUIIrY GIS
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y y + ++++++ + ++++ E I I ++++++++ ++*+{+ 42.8 AC +!- It OCCUPIED RESIDENCE
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�+ + + + + + + + + + + + /. \74 FT+/- FROM PERMIT BOUNDARYi
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700 FT+I, FROPv1 PERM IF 84CJNDARY + + + PER 4!) TL.ANDS SOLUTIONS, LLC-
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CCUPIED RESIDENCE \ \ t {+*+} +++++ R MIDI P OF BANK FER fiYP) PIN#: 03INGGR4444
Z � 375FT+J- FROM PERMITBOUNIJARY + + FROM 1. ZONING: RA
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��� r + + { *+++++++++r 50 Mlil WETLAND BUFFER (TYP}FT rf FROM FERj,Ur BOUNDARY
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477 FT +I- FROM.ERMIT BOUN ARY r + + + .+ { + + NE
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Q\�0355 Gxr OGCI PIED ftE510CIfG y v�.4�' O + + + + + + + + + + + JOHNSON TEitESSA925 J
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164 FT+I-:'FROM PERMIT BOUNDARY �� Os0 . "' W / + + I, +
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OCCUPIED REgIDENG l p F� / ,JVILKINS BARBARA MONROE
330 r+!- FROM PERMIT00UNDARY \,;:� nS.�7%� \ PIN#:035400496257
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................. ..... - --------
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale:
1 "=150'
Drawn by:
MTL3
Sheet:
C2 of 3
Designed by:
MTB
Reviewed by:
MTB
Project Number:
DDS ,JOB #; 2021-10
Date:
MAR 2021
,

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120 0 120 240 360
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CONSTRUCTION SEQUENCE MINING ACTIVITY
PHASE 1 - INITIAL PIT
1. PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITIES CONTACT NCDEQ LAND QUALITY SECTION [phone].
2. INSTALL CONSTRUCTION ENTRANCE ON TARHEEL ROAD.
3. INSTALL SILT FENCE PER PLAN BELOW ALL BERMS, PERMANENT/TEMPORARY D1VER�lONS, AND BASIN/TRAPS WI SILT FENCE OUTLETS IN LOW
AREAS PER PLAN.
4. INSTALL SEDIMENT BASIN #1. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL BASINS. MAINTAIN SILT
FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL GOOD GROUND COVER IS E s'FABLISHED.
5. INSTALL TEMPORARY DIVERSIONS. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL DIVERSIONS. MAINTAIN
SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARYIPERMANENT LINING, AND GOOD GROUND COVER ON FILL SLOPES IS
ESTABLISHED.
6. INSTALL PLANT SITE WI BERMS AND BEGIN REMOVAL OF OVERBURDEN FROM PIT.
7. NO CONSTRUCTION DEBRIS WILL BE BROUGHT ONTO THE SITE FOR RECYCLING AND SALE UNTIL FIRST APPROVED BY BOTH DEMLR AND DWM.
DEBRIS BINS WILL BE INSTALLED IN COMFORMANCE WITH SUCH APPROVALS. SUCH [DEBRIS WILL BE PROCESSED AND STORED ON TOP OF THE
GROUND UNTIL SOLD. ANY UNSOLD DEBRIS WILL BE REMOVED AND PROPERLY DISPOSED OFFSITE. NO DEBRIS WILL BE DISPOSED IN THE MINE
EXCAVATIONS NOR BURIED WITHIN THE MINING PERMIT BOUNDARY.
8. INSTALL PERMANENT AND TEMPORARY BERMS AROUND PIT.
9. MAINTAIN SILT FENCE UNTIL BERMS ARE STABILIZED AND SEEDED AROUND PLANT SITE AND EXCAVATION AREA. REMOVE TEMPORARY DIVERSIONS
AND TEMPORARY SKIMMER BASINS ONCE POSITIVE DRAINAGE IS ACHIEVED TO THE PIT. MAINTAIN ALL DOWNSTREAM DIVERSIONS AND SILT FENCE
UNTIL GOOD GROUND COVER IS ESTABLISHED.
10. ONCE GOOD GROUND COVER IS ESTABLISHED AND NO RUTTING OF SLOPES IS OCCLtRR1NG REMOVE ALL EROSION CONTROL MEASURES WHILE
MAINTAINING SILT FENCE ON DOWNSTREAM SIDE.
11. BEGIN MINING ACTIVITIES.
PHASE 2 - PIT EXPANSION
1. THE EXISTING STREAM CROSSING WITH 30" CULVERT TO REMAIN FOR RECLAMATION MAINTENANCE,
2. INSTALL TEMPORARY BRIDGE ACROSS STREAM WITH APPROPRIATE EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON SHEET C11.
3. INSTALL SILT FENCE PER PLAN BELOW ALL BERMS. PERMANENT/TEMPORARY DIVERSIONS, AND BASIN/TRAPS WI SILT FENCE OUTLETS IN LOW
AREAS PER PLAN.
4, INSTALL SKIMMER BASIN #2&3. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL BASINS. MAINTAIN SILT
FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL GOOD GROUND COVER IS ESTABLISHED.
5, INSTALL TEMPORRRY DIVERSIONS. STABILIZE AND SEED ALL SLOPES IMMEDIATELY. ONLY CLEAR AS NECESSARY TO INSTALL DIVERSIONS. MAINTAIN
SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING, AND LOUD GROUND COVER ON FILL SLOPES IS
ESTABLISHED,
6. INSTALL PERMANENT AND TEMPORARY BERMS AROUND PIT.
7. MAINTAIN SILT FENCE UNTIL BERMS ARE STABILIZED AND SEEDED AROUND EXCAVATION AREA. REMOVE TEMPORARY DIVERSIONS AND
TEMPORARY SKIMMER BASINS ONCE POSITIVE DRAINAGE IS ACHIEVED TO THE PIT, PAINTAIN ALL DOWNSTREAM DIVERSIONS AND SILT FENCE UNTIL
GOOD GROUND COVER IS ESTABLISHED.
8. ONCE GOOD GROUND COVER IS ESTABLISHED AND NO RUTTING OF SLOPES IS OCCURRING REMOVE ALL EROSION CONTROL MEASURES WHILE
MAINTAINING SILT FENCE ON DOWNSTREAM SIDE.
9. BEGIN MINING ACTIVITIES.
PHASE 3 - MINING PLANT SITE
1. ALL DEBRIS AND DEBRIS BINS WILL BE REMOVED AND PROPERLY DISPOSED OFFSITE PRIOR TO MINING THE PLANT AREA. NO DEBRIS WILL BE
PLACED IN THE MINE EXCAVATION. IF THE PLANT AREA IS NOT MINED, THE DEBRIS AND DEBRIS BINS WILL BE REMOVED FROM THE SITE AND ALL
AFFECTED AREAS IN AND AROUND THE PLANT SITE WILL BE PROPERLY GRADED AND PERMANENTLY STABILIZED WITH GROUNDCOVER.
2, ALL MATERIAL WILL BE EXCAVATED AND REMOVED WITH MINIMUM STOCKPILE AREAS.
ALL PHASES
1. AS EXCAVATION AREA IS EXPANDED POSITIVE DRAINAGE TO BE MAINTAINED TO EXCAVATION PIT.
2. TEMPORARY SEED STOCKPILE AREAS THAT WILL BE DENUDED FOR 30 DAYS OR MOVE-
3. MAINTAIN SILT FENCE AFTER MAJOR RAIN EVENTS.
4. STABILIZE AND SEED ALL DENUDED AREAS IN WHICH WORK WILL NOT RECOMMENCE WITHIN 7 WORKING DAYS OR 14 CALENDAR
5. MAINTAIN ALL EROSION CONTROL DEVICES WEEKLY AND AFTER MAJOR STORM EVENTS
6. DEWATER ALL SEDIMENT BASINS AND SKIMMER BASINS FOR MAINTANANCE AND REMOVAL WITH SILT BAG
PER DETAIL, IF NEEDED.
7. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION [phone]. %'.//%//jj/ T�%Li/�CjKILT
DISTURBED AREAS
TAILINGS/SEDIMENT PONDS
1 A AC
STOCKPILES
0.9 AC
PROCESSING AREA/HAUL ROADS
1.0 AC
MINE EXCAVATION
19.2 AC
OTHER MISC EXCAVATION
9.3 AC
(BERMS, DIVERSIONS, ETC.)
TOTAL AFFECTED AREA
31.8 AC
INTERNAL DRAINAGE = 26.2 AC
EXTERNAL DRAINAGE= 5.6 AC
LEGEND
PERMIT BOUNDARY
EXISTING CONTOUR
WETLAND w y W
BUFFER ry. ., . . ° -
AFFECTED AREA
CREEK
BERM +..�,++++
+ 4µ++ + + +
POND
- SILTFENCE (TYP)
SF SF SF SF SF
�30'x`IOY CONSTRUCTION ENT
/
FUTURE
\ COMMERCIAL DEVELOPMENT
5.2 AC +/-
PROPOSED BASIN TABLE
WIER RISER BARREL RISER SKIMMER SKIMMER BAFFLES
BASIN ID TOP WEIR BOTTOM POOL TOP WEIR BOTTOM VOLUME VOLUME WEIR WEIR
DIM DIM DIM DEPTH EL. EL. EL, REQUIRED PROPOSED LENGTH DEPTH LINING SIZE SIZE BASE ORFICE SIZE
SS#1 189x366 177X354 147x324 5 130.0 128,0 125.0 79920 CF 275715 CF NO OUTLET - NO DISCHARGE
\. SK#2 67x122 55X110 37x92 3 129.0 127.0 125.0 10080 CF 14181 CF 10.0 2.0 CLASS A NA NA NA 4" 1.4" 3
SK#3 70x128 58X116 40x98 3 132.0 130.0 129.0 11160 CF 15972 CF 10.0 2.0 CLASS A NA NA NA 4" 1.5" ! 3
SB SEDIMENT DASIN
SKB - SKIMMER BASIN
STABILIZE AND SEED ALL SLOPES IMMEDIATELY
EMERGENCY SF'I�LWAY TO 2E CONSTRUCTED IN CUT ONLY
PROPOSED DIVERSION TABLE
\} CHANNEL ID CHANNEL SLOPE SIDE SLOPES CHANNEL DEPTH BOTTOM WIDTH TEMPORARY LINING PERMANENT LINING LINING DEPTH
/ TD#1 0.5 % 11 1,5 FT 2.0 FT STRAW W1 NETTING BERMUDAGRASS
\ TD#2 1.0 % 3:1 2.0 FT 0.0 FT STRAWWI NETTING BERMUDAGRASS -
AGRAS
/" SILT FENCE (TYP
'32
2:1 MAX SIDE SLOPES (TYP) \ .. Y +++ ; }
/ ++++++++T
+,,+ i
1,a F f+*++ TEMPORARY DkVERS10
+ + ; CLASS A RIP RAP
+ +
d=12„
+ +
+ ,+ /
{ + +
+ + +
+ +
+ +
2 FT SAFETY BERM (TYP)
Tj o ++++++ '
TOPSOIL STOCKPILE (TYP)
® +
4 + +
r
t+
+ +\+
"js is is
NOTES:
STABILIZE AND SEED ALL SLOPES PER NCDEQ STANDARDS -
r 12-
FOR TIME FRAMES FOR DENUDED SLOPES '! -- 127 -
- 1 6.
INSTALL SILT FENCE PER SILT FENCE DETAIL / j' - 12 -
f 123
122
TOPSOIL SHALL BE PLACED WITH 3:1 MAX SLOPES
51LT FENCE,OUTLET (TYP}
ALL SLOPES SHALL BE STABILIZED AND PERMANENTLY SEEDED AT 10 FT HEIGHT
( ! COMPLE E BERM ATf SKIMN OUTLET
STOCKPILE ` ONC SKIMME IS DECQMINI SIGNED
/- P� TO DRAIN WITHIN NO b TTLFT
NTS 'i ', I �'- ` t �0.(1TLET PROTES
j ! k� i SON 0=\CLASS A'RI
;SP
ell
TOP OF BERM
SEDIMENT BASIN
1 '
1
WIER
BAFFLES
y'4 , .'I
i, If
ROCK CHECK DAMS
f
........
SILT FENCE SF
r;
TEMPORARY DIVERSION DITCH
i
OUTLET PROTECTION _{��
`. '
; f'iI
`
J-HOOK WI SILT FENCE OUTLET
SILT FENCE OUTLET
f
i
i
TD#3 0.5 % 3:1 1.5 FT 3.0 FT STRAW WI NETTING BERMUD S
TD#4 0,5 % 3:1 1.5 FT 2.0 FT STRAW W/ NETTING BERMUDAGRASS
TD#5 0.5 % 3:1 1.5 FT 0.0 FT STRAW WI NETTING BERMUDAGRASS
TD#6 0.3 % 3:1 1.5 FT 3.0 FT STRAW WI NETTING BERMUDAGRASS -
TD#7 0.5 % 3:1 1.5 FT 0.0 FT STRAW Wl NETTING BERMUDAGRASS
- INSTALL CHECK DAMS IN CHANNELS WITH STRAW WI NETTING
w
+ U VEGETATIVE 611W (TYP) i
* ® H=6.25 FT /
+ SIDE SLOPE= 4:1
++++ 50' MIN UNDISTURBED VEGETATIVE BUFFER (TYP)
+
+ + + /
`++ + AFFECTED AREA (TYP) 1. /..
t + +
+ + � 31.E AC +1-
+ +
+ +
* +++++ -CONSTRUCTION DEB
tIS BINS
+ + + ` RECYCLE AREA (TYP)
ITE+ �
+
+ + i {
E + + /
SION
+ +
+ + $ 3
+ l + +
+ +
+ + + +. ,
+ +; + + + + . 30' HAUL ROAD (TYP)
++++++ +{+ / TO REMAIN UNTIL;
+ + k+ + , PIT EXPANSION RECLAMATION r' /
__..._
+ + + + /
+ + +
+ +
+ + + + +
+ + +
_.-
1
M
j +++++ '^ rJ / ,ROPOSED
/ "TEMPORARY BRIDGE
X. STRE�M CRQPSING���'
28 LF.30 PIPE
REMAIP
} +TO
w�
- �k
-
-
+ + + +
l"
rD#3
DIVERSION r
RAP + +++�+++ �f �� �_ I
+
f/
+
+_-r tl a,k y*- +++`+ ILT FENCE (TYP)
+ + + „} \\++}++ ; 0` VEGETATIVE BERM (TYP),-,
+++TD#4 I + +\ H�6.25FT `
+' t�+ �/ ++++ SIDE S'-OPE= 4:1 !`
+ + :+
s + + ,+ + , + + !s
+ -50' MIN UNDISTURBED VEGETATIVE BUFFER (TYP)
t,VERSIO +.
FEMPORFI(2Y DIVERSION CLASS A IP RAP +++ SKIMMER
TEMPORARY D�..-_
A F IP RAP...._.., \ cf=12" + + I +�
OUTLET PROT CTION�\
\ + +. La=7.5' / \
(3) BAFFLES YP +++ ,+ d=12"
SK#2 /' + +,
STONE !a= CLASS A RIP RAPT
(3)BAFFLES(TYP) +++
K#
r 5 +
® OMPLETE BERfvI AT SKIMMER OUTLET
+ + +
r TEMPORARY DIVERSION + + ONCE SKIISAMER IS DECOMMISSIONED `
CLASS A FLIP RAP \ TEMPORARY DIVERSIO + �- PIT TO iiRAIN WITHIN NO OUTLETS ✓
d=12" CLASS A RIP RAP + t\ /
PIT EXPANSION d=12" �� +++ +'.
11+ TD # 5 - 11.3 AC +I- ++++++
r
TD # 7- A +,*+ L
F + + +
+'" ++�
+ +; + + + +
+ + + + +
+ + } + +
+ ..T . + + + SKIMMER \ ,
+ + +
1 }+ + + + 1
F + + + + i 7�
\ _ + _+ + .-
( .7
d_
Scale: 1" = 120'

i
.t
NOTES:
1, EXISTING TOPO IS STATE LIDAR FROM CUMBERLAND COUNTY GIS DATA.
2, STREAM AND WETLAND LOCATIONS BASED ON SITE DETERMINATION BY vvETLANDS SOLUTIONS, LLC.
3, SITE TO BE RECLAMATOD TO MEET CUMBERLAND COUNTY SECTION 919 QUARRY AND THE NCDEQ MINE PERMIT
RECLAMATION BOND REQUIREMENTS,
4. AS PART OF THE NCDEQ MINE: PERMIT THE OWNER IS REQUIRED TO BOND'FHE RECLAMATION OF THE TOTAL
PROJECT BASED ON THE STATE MINING PROGRAM REQUIRED AMOUNTS.
6. TOPSOIL STOCKPILE MATERIAL SHALL BE USED TO PROVIDE FERTILE SOIL DURING RECLAMATION TO AID IN THE
ESTABLISHMENT OF PERMANENT GROUND COVER. UNUSED TOPSOIL MATERIAL IN THE STOCKPILE AREAS SHALL
BE REGRADED PER DETAIL TO PROVIDE STABLE SLOPES. ALL SLOPES SHALL BE PERMANENTLY STABILIZED AND
SEEDED.
6. ANY DEBRIS AND DEBRIS BINS WILL BE REMOVED AND PROPERLY DISPOSED OFFSITE PRIOR TO MINING PLANT
AREA. IF THE PLANT AREA IS NOT MINED, THE DEBRIS AND DEBRIS BINS WILL BE REMOVED FROM THE SITE AND
ALL AFFECTED AREAS IN AND AROUND THE PLANT SITE WILL BE PROPERLY GRADED AND PERMANENTLY
STABILIZED WITH GROUNDCOVER. NO DEBRIS WILL BE DISPOSED IN THE T�1E MINE EXCAVATIONS NOR BURIED
WITHIN THE MINING PERMIT BOUNDARY.
4 BERM 4
WATER LEVEL (APPROX.) V
///�" //////.//�'' % D �P ,` / %/////%j j% ' /%//j%�
/', i%�%%//j/ //j/z// j�/ ,/!////////// �;"V/ ;%//
///%' '' j//%%�%%� /` /`%Z./%%// - /%// j//% i/%,/ /. .
/ ///�/'/// jai//`j///�/' //�////,�/.
//� - / ////%//%/ i/j/fj�I/ //, /:,
'�/i/, //,if/
NOTES:
3:1 MAX SLOPE ABOVE WATER LINE
3:1 MAX SLOPE BELOW WATER LINE AT MIN 20'
HORT, AND 10' VERTICAL DISTANCE
ALL DENUDED AREAS ABOVE WATER LINE TO
BE VEGETATED
DE WALL RECLAMAT100N (TYP)
INTIAL PIT
7.2 AC
PIT EXPANSIONS
11.3 AC
PLANT SITE
3.3 AC
UNDISTURBED BUFFER
11.7 AC
OTHER MISC. AREA
9,3 AC
(BERMS, TEMP. AVERSIONS, ETC.)
TOTAL PROJECT AREA
42.8 AC
DISTURBED AREAS
TAILINGS/SEDIMENT PONDS 1.4 AC
STOCKPILES 0.9 AC
PROCESSING AREA/HAUL ROADS 1.0 AC
MINE EXCAVATION 19.2 AC
OTHER MISC EXCAVATION 9.3 AC
(BERMS, DIVERSIONS, FTC.)
TOTAL AFFECTED AREA 31.8 AC
LEGEND
PERMIT BOUNDARY
EXISTING CONTOUR
PROPOSED BUFFER
AFFECTED AREA
POND
w w w
w w
® ® m=
e
+ + + + + +
+ } } } } } } }
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+ + + +
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i
+ + + + + + ® EI t i!
+ + + .� + + ;
," � � \ + + + + + .
f +- + + + + 12' WIDE ACCESS ROAD ALONG PIT if
'" ` + ++ ++ +: + ++ t+++ TO PIT EXPANSION AREA
_.._: /' ++++,..+ + * +++ ++� FOR RECLAMATION MAINTENDANCE. \ ` ?
IF PLANT SITE AREA IS MINE ii
+ + + + + :r
+ + + + : /
/ + +
/ \ + . + f,
} + + +
I + + /
..,/
\ + + + + / F
11 FUTURE , + + ) + + t � /
t'
`w' ` "; COIIflJIERGIAL DEVELOPMENT + f++ PLANT SITE +++ + 3:1 MAXSLOPE/ ,/ r'I
�- m t+*+ ++ r+ ABOVE WATER LINE i i
5.2 AC I
\� 1, ® +++ FUTURE : + ++ ® TO BE VEGETATED / +' .
\ !
\`
I + PIT EXPANSION r+ ++ V
\ E ++ +++ + + r' �' .
1, I \I \
� \' + + 3 3 AG l- + + I
\ + + �
+ + / ; r!
11
I + + ` ++ +++0 /
I\ + ;
\ " \ � + + : � , N + +
+ +
: O
r
E + + _
-. ,/ + + .:' �'
%' `
� + + +++ +
` � i . + + + + + ® 12' WIDE ACCESS ROAD ALONG PIT
\ _ ..._ ® /" /'I ,'' + ++ ++ r { ,+'' ++ ++ ' / 9 TO PIT EXPANSION AREA .. f.r' 1
/ + + , + + r*:*+*. +t + + FOR RECLAMATION MAINTENANCE _-...
y, i
\ + + + + + + I iNE._.... - W
A i + + + t + APP L 124
+ } ASSUMED W \
+ + + + + _
\ t + + + + + + + - +. RX.
\ ASS WATER
_.
+ + f
T
n s
+ + V �+ + + _ ++ ++ / -
\ - + + ` \` .
j q * + + ,�` .:. ii'' ... LAKE ACREf\GE= + + ` , `
\ +++{+ ++ TEiv1PC]RPRY DIRslo�ls :TOP OF -.WATER EL=12' (AI'PRX ). + ��
\, \ + + ++ + - : REMOVED, bURING : � + + 1a , \ j
,I.I�.... ­, ". "/.,�,.
+T+ + M}NING ACTIVITIES ( YP):STABI.L12 E AN©S E� ALL SLOPES ++ ++ % ,;
\ + + I I,F /� PIT SEEDED r1REA—.1A AC \ +++ j r, _I_ _ '.
,'' ++ ++ .E y'! . oRs � X. 30" C0LVERT, Ji.
+ + G INITIAL PIT : / `�" TO REA!(AIN\ -, .
/ fE / " , A + r ++ '� / -FOR RECLAMATION MAINT�ENAN ' /
� \
` �'I
L: /
/'it 7.2 A� '9'I— _ � + t r / - I\
. -`
, t + :. . I . + + + + .; RAY
+ + `� h.'.�'. :'. TO BEREMOVIDD` %
f + + I + + + + ,' , E �i / �"
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/ �� �I, �[ - l - - 2l
\ T+ + / /�.
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'.
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r
SEDIMENT�BA51N,
/ \. --' �.
/ t . ,, " ' . . - ::' : i ::TO BE,REMOVED DURING + , / 4 SI RAND BARBED WIRE FENCE (TYP) .ti I
'� s + +�/ + �..�� / � WARNIN'I•SIGNS ALONG FENCE `
'" i. + \ !/ ": . ... . ... OPERATION + + i // - /' l 7�� /
�+ /
- \ .r +' via• '..r! „-^/ + ++ +++ S, fY; `�
k + / / //
}
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s V' + +
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\ } + + + + ice!
+ + + / r'
+ + + + + + / +
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\ \ iI
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\ \! -� , r / _.r '_'I i _ .:._� �'f / + + ` wi +++++ 5KIMMER BAS1N + + i ?I `4
i` \, I,. �� / , j r'" r_ r } + TO:BE R�MbVEI.f)URIN + + e
\ _ + + + ,
` } j r �_ f / ''. + �' { + ++ : MINING OPERATION +++.++ ,­__.
,� �\ ) m I
. / '� '1 �11 �1 ER , � � ; \,1 i \ % \ .-. ^- -' f i / die. - + /s1 + + SK fUIM BAST + + + / r
/I-,- . . .
I , �. f - LL =l; y / . t + + TO BE' REPROVED, DUR1Nf� t + �` ,,f '\.
E ' i r�� / ; °e I ,+ :MINING. QRERATION : .\ ++++ ` .
! I: g + +T t{ + + \ /
/11 _ +
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11 1 4 _-- 1 r''i ___~ PIT EXPANSION
+ +
- 63
fl, 1, / . \ , I \
`\ t If1 - ,I • ++ +++op
\ �.'\ , I I + + LAKE. ACREAGE 'I0.2 AC + + +
( t + OP OF VIfATER E�124'' APPR I
r . \i T TE PORARY DIVERSI N5\
4 _k i f i i � ', + + + M O 6 + + +
i
+ + + f2EMOVED DU iNG - STA I�LlZE �Nd:SE D LL SL PES R / 111' B A E A G
f ! f ,x / / /;' ; r / \ 1 { . ! ---.,` ! ++++ I�IT SEEDED AREA ;1 .:2 A , :MINING ACTIVITIES (TYP) = + + + S
1 ++ +
, / + + + + + +
! or
f/ f ,r' �� /\,i ' / i \ i, f 1, r i / y t + + t +,
i ./1 \ .. / / / i i I�, I� / 1® + + + + +
f, j + + + +
/ f " �. - , �� I I I 4�I 1, 1 I i + + + + + f
r = r j/ / /'' E , 1. ( I �\ /� , _._�`y +++}+ + + + � f
, I I, , ---- . 1 v � 3 1 � ��-/ . I . . : . . . . .,:r . . .:: : 1 "�:: : :,r , : " r -
\ _ + + + +
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\\ ' -_ ,
}
i
f
I; / / \� / ;' �' > r + + + i + ASSUMED WATER LINE
1
;' ;
/
/ '�� 1 32
/f, , \ / 1 / / + + + + + APPRX. EL=124'
- ;
++ +
\ /If ti
` �, ,!, t / +++++ ++++ .
f
,I 11
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MAINTENANCE PLAN
THE OPERATOR IS RESPONSIBLE FOR MAINTAINING EROSION CONTROL DEVICES THROUGHOUT THE PROJECT DURATION.
ALL EROSION AND SEDIMENT CONTROL DEVICES SHALL BE CHECKED FOR STABILITY AND 0PERATION FOLLOWING EVERY RUNOFF -PRODUCING
RAINFALL BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN ALL DEVICES AS
DESIGNED.
SKIMMER BASINS:
1. BASINS ARE TO BE CLEANED OF SEDIMENT WHEN ITS STORAGE CAPACITY IS REDUCED BY 50%. PLACE SEDIMENT REMOVED FROM THE
BASIN IN A STOCKPILE AREA AS SHOWN ON THE PLAN OR AN AREA THAI' HAS ADEQUATE EROSION CONTROL MEASURES,
2, CHECK BERM STRUCTURE, SPILLWAYS, AND SKIMMER PIPE EVERY WEEP FOR EROSICN AND PIPING.
3, MAINTAIN BAFFLES AS DIRECTED BELOW.
4. ANY RIP RAP DISPLACED FROM SPILLWAY MUST BE REPLACED IMMEDIATELY.
5, AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE BASIN (PHASE 2 OF CONSTRUCTION SEQUENCE) AND ALL UNSTABLE
SEDIMENT, GRADE ACCORDING TO GRADING PLAN OR BLEND IN WITH ADJACENT GRADES - ADDITIONAL COMPACTION EFFORTS MAY BE
REQUIRED IF STRUCTURE IS PROPOSED FOR THAT AREA. STABILIZE AREA.
BAFFLES:
1. MAINTAIN ACCESS TO BAFFLES. SHOULD THE FABRIC COLLAPSE, DECOMPOSE, TEAR, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
2. REMOVE BUILDUP SEDIMENT WHEN IT REACHES ONE-HALF FULL TAKE CARE NOT TO DISTURB BAFFLES DURING CLEANOUT.
SILT FENCE:
1. SEDIMENT SHALL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES ABOUT 0.5 FT DEEP AT THE FENCE. THE FENCE
SHALL BE REPAJRED AS REQUIRED TO MAINTAIN A SUFFICIENT BARRIER.
2. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, DECOMPOSE, TEAR, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
3. AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT. GRADE AREA
TO GRADING PLAN OR BLEND WITH ADJACENT GRADES. STABILIZE AREA,
TEMPORARY DIVERSIONS:
1. IMMEDIATELY REMOVE EXCESS SEDIMENT FROM FLOWAREA AND REPAIR DIVERSION RIDGE.
2. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED.
3. AFTER ALL AREAS HAVE BEEN STABILIZED REMOVE THE RIDGE AND THE CHANNEL AND GRADE ACCORDING TO GRADING PLAN OR
BLEND WITH ADJACENT GRADES, STABILIZE AREA.
RIP RAP LINED DITCHESICHANNELSIOUTLETS:
1, PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS.
2. INSPECT FOR INDICATIONS OF PIPING, SCOUR HOLES, OR BANK FAILURES. MAKE REPAIRS IMMEDIATELY.
3. MAINTAIN VEGETATION ADJACENT TO THE ROCK LINING !N A HEALTHY, VIGOROUS CONDITION TO PROTECT THE AREA FROM EROSION
AND SCOUR.
GRASS LINED DITCH ESICHANNELSISWALES:
1. DURING GRASS ESTABLISHMENT PERIOD, INSPECT AFTER EVERY RAINFALL.
2. AFTER GRASS HAS ESTABLISHED, INSPECT PERIODICALLY AND AFTER FIFAVY RAINFALL. IMMEDIATELY MAKE REPAIRS.
3. PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS.
4. GRASS SHOULD BE MAINTAINED IN A HEALTHY VIGOROUS CONDITION A r ALL TIMES, SINCE IT IS THE PRIMARY EROSION PROTECTION,
TEMPORARY SEEDING SCHEDULE
WINTER & EARLY SPRING
.................
Seeding mixture
Species Rate (lblacre)
Rye (grain) 120
Annual lespedeza (Kobe in
Piedmont and Coastal Plain,
Korean in Mountains) 50
Omit annual lespedeza when duration of temporary cover is not to
extend beyond June.
Seeding dates
Mountains —Above 2500 feet: Feb. 15 - May 15
Below 2500 feet: Feb. 1- May 1
Piedmont —.Jan. 1 - May 1
Coastal Plain —Dec. 1 -Apr. 15
Soil amendments
Follow recommendations of soil tests or apply 2,000 lblacre ground
agricultural limestone and 750 lb/acre 10-10-10 fertilizer.
Mulch
Apply 4,000 lblacre straw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
TEMPORARY SEEDING SCHEDULE
FALL
Seeding mixture ure
Species Rate (lblacre)
Rye (grain) 120
A
Scaecting dates I
iMountairts-Arug_15-D c..).
Cuastal Plain and ied''Amt--Agug. 15 - Dec, 30
Soil amendinants
Fallow soil tests or apply 2,0Q,0 lblacre ground agricultural lirnestane
and 1,000 Iblacre 10-1 -10 fertilizer.
E
Mulch
Apply 4,0001bla1,re straw.'�Anoho r straw by to kifig with aspha11, netting, 1
or a mulch anchoring took, . A disk with blades set nearly straight can be
I
used as a mulch anchoring tool.
Maillterlar�co
Repair and refertilize damaged areas immediately. Topdress With 50
Iblacre of nitrogen in Mafch. if it i5 necessary to exlerst teaalporar'}
cover beyond June 15, overseed with 50 lblacre Kobe (Piedrr ant arid
Co ;stal Plain) or Korean (Plelountains) lespedeza in late: February or
early March,
•
Maintenance
Refertilize if growth is not fully adequate. Reseed, refertilize and mulch
immediately following erosion or other damage.
PERMANENT SEEDING SCHEDULE
SOURCE: NCDEQ EROSION CONTROL MANUAL 6.11b
HERBACEOUS PLANTS -Seeding recommendations W primary stabilization
Successful development depends on planting Efate (effectiveness goal: 6 mo. - 3 yrs, without an ongoing maintenance program)
3
I Pientin Dates
:cy,7a2r
1 - Slt
rotq
I'[ans
10I1 -4 Y
Sun/Shade
tcferant
Sun
4Vetiands
NR
Riparian
H.ulers
NR
Invasive
YeS or tjo
Yes
lnsEaAation/Maintenance
Corisideretiens
Responds well to covft1ed
burns
Other information, aomrnenta
Severe Threat
Invasve species
i
NR
Sun
NR
NR
1',nm at hs.
Prefers reutrsi sa€Is
not recommended urle5s
anacce tablaaltamaliva -
--------'---_.—._.._�
is not available.
stem
Al l - 111
Surf
_ .NR -
KR _
:- -
__- No
Significant maintenance _
Dces ot tcterata high tragic.
n
Acceptable for sodding —
---
rrla Na re urged to obtain
desired cover
-
15
9l30 - 3 15
Sun!
NR y
w NR
Yes
if til'zad, ii is im orative
Acre ia64e far saddin-
ntod. Shads
a
_
hat rnain;enance includes
a containment 0an
t -
NR�
Sun
- NR _
Yes -
If utilized, it is imperative _
Prefers nutml
NR
that maintenance includes
a c-�ntainrrtant plan
conj2eNve, nat recomrended__,_
unless an acceptable alternative
{'
is not ava aNBe.
I
Aacnplahla br sudding
_
NR
---
Shane
— -
NR
_. _-
NR --
No
Not recom:.nerdedfor __-
slopes groator than 5%
Low ,bunch_grass
15�130
�It 5.6130
Sun -
NR
NR i'
Yes
if utilized ii is imcarative _
Extreme a f ssiue, not
that maintenance Includes
recommended and shauld be
a cortainmePL an —
avoided unless an ac abla
adernadve is not available.
Y
A
May be soddad ar sprirged._T,
t
TEMPORARY SEEDING
PROVIDE TEMPORARY SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN THE FOLLOWING SCHEDULE:
PERMANENT DITCHES - IMMEDIATELY (ROCK LINED)
SLOPES 4:1 OR STEEPER --> 7 DAYS
ALL OTHER AREAS --> 14 DAYS
IF SOILS BECOME COMPACTED DURING GRADING, LOOSEN THEM TO A DEPTH OF 5-8 INCHES.
SEEDBED PREPARATION:
PERMANENT SEEDING
SEE SEEDING SCHEDULE FOR SEED TYPE AND RATE.
PROVIDE PERMANENT SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE COVERED BY PAVING, BUILDINGS, OR OTHER LANDSCAPING. AREAS
RECEIVING PERMANENT VEGETATION MUST BE STABILIZED WITHIN THE FOLLOWING TIMEFRAMES AFTER FINAL GRADE IS REACHED, UNLESS
TEMPORARY STABILIZATION IS APPLIED.
PERMANENT DITCHES — IMMEDIATELY (ROCK LINED)
SLOPES 4:1 OR STEEPER --> 7 DAYS
ALL OTHER AREAS --> 14 DAYS
LIME: APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. IF THE SOIL PH IS NOT KNOWN, APPLY AT A RATE OF 1 TO 112 TONS PER
COMPLETE GRADING BEFORE PREPARING SEEDBEDS. IF SOILS BECOME COMPACTS© DURING GRADING, LOOSEN THEM TO A DEPTH OF 6 8
ACRE ON COARSE -TEXTURED SOILS AND 2-3 TONS PER ACRE OF FINE -TEXTURED SOILS. APPLY LIME UNIFORMLY AND INCORPORATE INTO
INCHES.
THE TOP 4-6 INCHES OF SOIL. SOILS WITH PH HIGHER THAN 6 DO NOT NEED LIME,
SEEDBED REQUIREMENTS:
FERTILIZER; FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS. WHERE SOIL TESTS ARE NOT AVAILABLE, APPLY A 10-10-10 GRADE
FERTILIZER AT 700-1,000 LBIACRE. INCORPORATE FERTILIZER INTO THE TOP 4-6 INCHES OF SOIL. IF A HYDRAULIC SEEDER IS USED, DO NOT
THE SOIL SHOULD MEET THE FOLLOWING ,MINIMUM CRITERIA FOR VEGETATION ESTABLISHMENT:
MIX SEED AND FERTILIZER MORE THAN 30 MINUTES BEFORE APPLICATION.
ENOUGH FINE-GRAINED (SILT AND CLAY) MATERIAL TO MAINTAIN ADEQUATE MOISTURE AND NUTRIENT SUPPLY (AVAILABLE WATER
CAPACITY OF LEAST INCHES WATER T1 INCH SOIL
SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED, SEALED; OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY
SUFFICIENT POORR E SPACEE T TO PERMIT ROOT PENETT RATION..
DISKING, RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR FURROW SLOPES STEEPER THAN 3:1 ON THE CONTOUR
• SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE. ROOT ZONE, THE DEPTH OF ROCK OR IMPERMEABLE LAYERS SUCH AS
BEFORE SEEDING,
HARDPANS SHOULD BE 12 INCHES OR MORE, EXCEPT ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE.
A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0-6.5.
PLANT SELECTION:
• NO LARGE ROOTS, BRANCHES, STONES, LARGE CLODS OF EARTH, AND TRASH, CLODS AND STONES MAY BE LEFT ON SLOPES
STEEPER THAN 3:1 IF THEY ARE TO BE HYDROSEEDED.
SELECT THE APPROPRIATE SPECIES BASED ON THE PLANTING SEASON.
IF THE ABOVE CRITERIA CANNOT BE MET, SPECIAL SOIL CONDITIONERS OR TOPSOIL MAY BE APPLIED.
SEEDING:
APPLY SEED WITH A BROADCAST SEEDER, GRILL, CULTIPACKER SEEDER, OR HYDROSEEDER. USE SEEDING RATES GIVEN IN TABLES.
SEEDBED PREPARATION -
BROADCAST SEEDING AND HYDROSEEDING 15 ACCEPTABLE ON STEEP SLOPES WHERE EQUIPMENT CANNOT BE DRIVEN. HAND
LIME: APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. IF THE SOIL PH IS NOT KNOWN, FOLLOW RATES ON THE SEEDING SPEC
BROADCASTING IS NO r RECOMMENDED.
TABLE
SMALL GRAINS SI IOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND LEGUMES ON MORE THAN Y2 INCH, BROADCAST
FERTILIZER: FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS. WHERE SOIL TESTS ARE NOT AVAILABLE, FOLLOW RATES ON THE
SEED MUST BE COVERED BY RAKING OR CHAIN DRAGGING, AND THEN UCHTLY FIRMED WITH A ROLLER OR CULTIPACKER, HYDROSEEDED
SEEDING SPEC TABLE.
MIXTURES SHOULD NOT INCLUDE A WOOD FIBER MULCH.
SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED, SEALED, OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY
MULCHING:
DISKING, RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR FURROW SLOPES STEEPER THAN 11 ON THE CONTOUR
I
BEFORE SEEDING
MULCHING IS REQUIRED FOR ALL TEMPORARY SEEDING AT A MIN RATE OF 2 TONSIACRE
WITH ASPHALT TACK.
PLANT SELECTION:
MAINTENANCE:
SELECT THE APPROPRIATE SPECIES BASED ON THE PLANTING SEASON, SOIL TYPE, SLOPES, AND LAND USES. SEE SEEDING SPEC TABLES
CONTRACTOR TO MONITOR GRASS ESTABLISHMENT. PROMPTLY RESEEED AREAS WHERE A HEALTHY, DENSE GROWTH DOES NOT
IN PLANS FOR RECOMMENDED PERMANENT SEEDING MIXTURE.
ESTABLISH. CON I`RACTOR MAY NEED TO PROVIDE NETTING OR TEMPORARY LINERS
TO AREAS WHERE GRASS CANNOT BE ESTABLISHED
DUE TO EROSION,
TEMPORARY SEEDING SCHEDULE
SUMMER
Seeding mixture
ure
Species Rate (iblacre)
Gecn-iarl mrl Ilet 40
In the Piednznt and Mountains, a snail -stemmed Su€failgr:as . may ne
Substituted at a rate of 50 lblacre:.
Seeding dates
1 rruntains.µ..day 15 - Aug. 15
Medtnont—May 1 -Aug, 1.5
Coastal Plain ---Apr. 15 -Aug. 15
Soil amendments
F'ollovr recornf-nendations of soil tests or apply 2,00 lblacre ground
agricultural 4mestone and 750 Iblacre 10-10-10 fertilizer.
Mulch
Apply 4,1'.)00 lblacre straw Anchor aatraw by tacking with asphalt, netting;
or a mulch anchoring tool. A dish With blades set nearly straight can be
used as a rwAch anrJiofirag tool
Maintenance
FZefertifiza if gro°vAh is not fully ad�lquate. Reseed, refertilize and mud ch III
irnmodiately following erosion or other damage,
HERBACEOUS PLANT,5•Seeding recommendations for primary stabilization
Successf ld deveIvment rrcpends on plarfing date (effectiveness goal: 6 me. - 3 yrs-ra@huut an mtdcing maintenance V1 ogr�n)
NATV,r SPECIES .
Table 5.1i.c
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SEEDING.
USE CERTIFIED SEED (INSPECTED BY THE NORTH CAROLINA CROP IMPROVEMENT ASSOCIATION).
APPLY SEED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER, OR HYDROSEEDER ON A FIRM, FRIABLE SEEDBED. USE SEEDING
RATES GIVEN IN TABLES.
WHEN USING A DRILL OR CULTIPACKER SEEDER, SMALL GRAINS SHOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND
LEGUMES ON MORE THAN t2 INCH.
WHEN BROADCAST SEEDING, SUBDIVIDE AREA INTO WORKABLE SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH
SECTION. APPLY ONE-HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA AND APPLY THE REMAINING SEED IN THE SAME
MANNER BUT AT RIGHT ANGLES TO THE FIRST PASS, COVER SEED BY RAKING OR CHAIN DRAGGING, AND THEN LIGHTLY FIRM WITH A
ROLLER OR CULTIPACKER.
MULCH AREAS IMMEDIATELY AFTER SEEDING IN ACCORDANCE WITH RATES GIVEN IN.TABLES. ANCHOR MULCH WITH NETTING OR LIQUID
ASPHALT AT A RATE OF 0.10 GALLON PER SQUARE YARD (10 GAL 11000 SQ FT)
HYDROSEEDING:
SURFACE ROUGHENING IS REQUIRED. FINE SEEDBED PREPARATION IS NOT NECESSARY_
RATE OF WOOD FIBER APPLICATION SHOULD BE AT LEAST 4,000-6,000 LBIACRE. i
APPLY LEGUME INOCULANTS AT FOUR TIMES THE RECOMMENDED RATE WHEN r4DDING INOCULANT TO HYDROSEEDER SLURRY.
APPLY LIME IN DRY FORM. ?�
APPLICATION
STEP 1 -113 MULCH RATE, ALL SEEDING AND ALL INOCULANT SPREAD IN Q_IE DIRECTION
STEP 2 - 213 MULCH RATE APPLIED IN OPPOSING DIRECTION,, r t r•
MAINTENANCE.
IF STAND IS INADEQUATE, RE-EVALUATE PLANT CHOICE AND QUANTITIES OF LIME AND FERTILIZER, REESTABLISH THE STAND AFTER
SEEDBED PREPARATION OR OVER -SEED THE STAND. CONSIDER SEEDING TEMPORARY, ANNUAL SPECIES IF THE TIME OF YEAR IS NOT
APPROPRIATE FOR PERMANENT SEEDING.
c
0
i
ii

NCG01 PERMIT PROVISIONS HAVE SEEN PROVIDED AS GENERAL GUIDE
WITH MINING OPERATIONS DURING THE CONSTRUCTION PORTION OF
THE PROJECT AS A BEST MANAGEMENT PRACTICE.
HOWEVER, MINING OPERATIONS ARE CURRENTLY EXEMPT FROM THESE
REQUIREMENTS UNDER THE NCG02 PERMIT.
I.,
i
1
i
b
f
i. ......... ........ ..................... ----------
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH EQUIPMENT AND VEHICLE MAINTENANCE ON' CONCRETE WASHOUT
THE NCG01 CONSTRUCTION GENERAL PERMIT STRUCTURE WITH LINER
1. Maintain vehicles and equipment to prevent discharge of fluids.
Implementing the details and specifications on this plan sheet will result in the construction
2. Provide drip pans under any stared equipment. o o a
activity being considered compliant with the Ground Stabilization and Materials Handling -a
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the o a
sections of the NCGO1 Construction General Permit (Sections E and F, respectively), 'the 4. Collect all spent fluids, stare in separate containers and properly dispose as
o „f= "' o c
permittee shall comply with the Erosion and Sediment Control plan approved by the protect'
delegated authority having jurisdiction. All details and specifications shown on this sheet
' C
may not apply depending on site conditions and the delegated authority having jurisdiction. hazardous Waste (recycle when passible).
Y pp Y p g g Y n 5. Remove leaking vehicles and construction equipment from service until the problern
SECTION E: GROUND STABILIZATION has been corrected. , Fs
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW 'Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
6. Bring used fuels, lubricants, coolants, hydraulic fluids, and Other petroleum products
at s
to a recycling or disposal center that handles these materiais.�
'""` " '""' `" """"` f" "' `
FEtill:`A BOVE G R A c E W kSHO U F S T R U C LLRE
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
CONCRETE WASHOUTS
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
1. Do not discharge concrete or cement slurry from the site.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
2, Dispose of, or recycle settled, hardened concrete residue in accordance with local
waters unless no other alternatives are reasonably available.
and state solid wi ste regulations and at an approved facility.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
3. Manage washout from mortar mixers in accordance with the above item and in
from upland areas and does not drain directly to a storm drain, stream or wetland.
addition place tht mixer and associated materials on impervious barrier and within
5. Cover waste containers at the end of each workday and before storm events or
lot perimeter silt fence.
provide secondary containment. Repair or replace damaged waste containers.
4. Install temporary concrete washouts per local requirements, where applicable. If an
6. Anchor all lightweight items in waste containers during times of high winds.
alternate method or product is to be used, contact your approval authority for
7, Empty waste containers as needed to prevent overflow. Clean up immediately if
review and approval. If local standard details are not available, use one of tite two
containers overflow.
types of temporary concrete washouts provided on this detail.
8. Dispose waste off -site at an approved disposal facility.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
9. On business days, clean up and dispose of waste in designated waste containers.
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
PAINT AND OTHER LIQUID WASTE
be pumped out and removed from project.
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
2. La paint washouts at least feet away from storm drain inlets and surface
install protection of storm drain inlet(s) closest to the washout which could receive
waters unless no other alternativiv es are reasonably available,
spills or overflow.
Note: After the permanent cessation of construction activities, any areas with temporary 3. Contain liquid wastes in a controlled area. 1 1.
7. Locate washouts in an easily accessible area, on level ground and install a stone
ground stabilization shall be converted to permanent ground stabilization as soon as 4. Containment must be labeled, sized and placed appropriately for the needs of site. entrance pad in front of the washout. Additional controls may be required by the
practicable but in no case longer than 90 calendar days after the last land disturbing 5. Prevent the discharge of soaps, solvents, deterge'nts and other liquid wastes from approving authority.
activity. Temporary ground stabilization shalt be maintained in a manner to render the construction sites. 8. Install at least one sign directing concrete trucks to the washout within the project
surface stable against accelerated erosion until permanent ground stabilization is achieved. limits. post signage on the washout itself to identify this location.
PORTABLE TOILETS 9. Remove leavings from the washout when at approximately 75% capacity to limit
GROUND STABILIZATION SPECIFICATION I g pp y p Y
1. Install portable toilets on level ground, at least 50 feet avray from storm drains, overflow events. Replace the tarp, sand bags or other temporary structural
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the streams or wetlands unless there is no alternative reasonably available. If 50 foot no longer functional. When utilizing alternative or proprietary
components wheY7 g g p p Y
techniques in the table below: p portable toEet behind silt fence or lace . _ _ :.. offset is not attainable, provide relocation of ort' p products, follow rilpnufacturer's instructions.
to tlrzattan...:er':- >.riv=a€� Pergravel n rr with `
e,..._., rnReat;S.tabilrzafGbn _...:: an a pad and surround th sand bags
:::::°:°::e;=..Ipmpora1Y.S........................
10. At the completior"l of the concrete work, remove remaining leavings and dispose of
• Temporary grass seed covered with straw or . Permanent grass seed covered zlith straw or 2. Provide staking or anchoring of portable toilets during periods of high winds or in high in Ott approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
other mulches and tackifiers other mulches and tackifiers � foot traffic areas. � caused by removal Of washout.
• Hydroseeding • Geotextile fabrics such as permanent soil 3. Monitor portable toilets for leaking and properly dispose of any leaked material.
• Rolled erosion control products with or reinforcement matting k Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
I without temporary grass seed • Hydroseeding with properly operating unit. I
+ Appropriately applied straw or other mulch . Shrubs or other permanent plantings covered ----Ili HERBICIDES, PESTICIDES AND RODENTICIDES
• Plastic sheeting with mulch - -- 1. Store and apply hefbicides, pesticides and rodenticides in accordance with label
• Uniforfn and evenly distributed ground coir,-r EARTHEN STOCKPILE MANAGEMENT restrictions,
sufficient to restrain erasion 1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
2. Store herbicides, pesticides and rodenticides in their original containers with the
• strLctural methods such as concrete, asphalt or 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls label, which lists tiiCections for use, ingredients and first aid steps in case of
retaining wall other alter oatives are reasonably
• Rolled erosion control products with Brass yeec{ accidental pOi5nn11?g•
p g 2. Protectavailable.
lie with silt fence installed aloe to 1 f ides pesticides and rodenticides in areas where flooding is
g and surface waters un ess it can be shown no
p' g e of slope with a minimum offset of 3. possible not store here P g
POLYACRYLAMIDES (DAMS) AND FLOCCULANTS five feet from the toe of stockpile. I oruor where If a s may spill or leak Into i wells, stnrmwater drains, ground water
1. Select flocculants that areappropriate forthe soils being exposed during # t or surface water. If a spill occurs, clean area immediately.
g p g 3. Provide stable stone access point when feasible. 4. Do not stockpile till se materials onsite.
construction, selecting from the NC DWR List of Approved PAMS/Flocculants. 4. Stabilize stockpile within the timefrarnes provided on this sheet and in accordance
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. with the approved plan and any additional requirements. Soil stabilization is defined s
3. Apply flocculants at the concentrations specified in the NC DWR List of Approvsd as vegetative, physical or chemical coverage technicibes that will restrain acceferated HAZARDOUS AND TOXIC? WASTE
PAMS/Flocculatits and in accordance with the manufacturer's instructions. erosion on disturbed soils for temporary or permanent control needs. 1. Create designated hazardous waste collection areas on site
4. Provide ponding area for containment of treated Stormwater before dischargifn
offsite. 4 2. Place hazardous waste containers under cover or in secondary coittamment. xi' 5. Store flocculants in leak -proof containers that are kept under storm -resistant cover 3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
or surrounded by Y secondar containment structures.
CG01 GROUND STABILIZATION AND A TEF IAL �IANDL,ING EFFEC WE: 04/01/19
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shQII be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend br
Food working
holiday periods, and no individuai-day rainfall information is
order
available, record the cumulative rain measumrnert for those lei}-
attended days (and this will determine if a site irspecVan is
nccdcd). Days on which no rainfall occurred shall be rcccrdcd os
"zero." The permittee may use another rain -monitoring dCVICe
approved by the Division,
(2) E&SC
At Ieast once per
1. identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whethcrthe measures wcreoperating
event � 1.0 inch it
properly,
24 hours -
5. Description of maintenance needs for the measure,
G. Descriptior, evidence, and date of corrective actions taken.
(3) Stanmwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SUos)
and within 24
J. Name of the person performing the inspection,
hours of a rain
4. Eviderce o� irdicatars of stormwater pollution such as oil
event> 1.0 inch in
sheer, floating or suspended solids or discoloration,
24 hours ...
5. Indication of visible sediment leaving the site,
'-
6. Descriptior, eviderce, and date of corrective actions token.
(4) Perimeter of
At feast once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the follovs'irg shall be rrade:
and within 24
1. Actors taken to clean up or stahilize the sedimentthat has left
hours of o roin
the situ limits,
event > 1.0 inch in
2. Descriptior, evidence, and date of corrective actions taken, 1rd
24 hours
3. An explanation as to the actions taker to control future
releases.
(5) Strcarns or
At feast ena per
If the stream or wctfand has increased visi6lc sedimeritation or a
wetlards onsit e
7 calerdardays
stream has visible increased turbidity from the construction
er offsite
and within 24
activity, then a record of the fulkwirg shall be made;
(where
hours of a rain
1. Description, evidence and date of corrective actions t,Aci), ar�d
accessible}
event_> 1.0 inch in
2. Records or the required reports to the <PPro rate Division
24 hour's
Regional office per part III, Section C, Itern (2)(0) of this permit
of this permit,
(6) Ground
After each phase
1. The phase of Grading (installation of perimeter E&SC
stabilization
of grading
Treasures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, constfuction or rcdevelopment, permanent
ground cover).
Z. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance thaC they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requiremeflt,
PART Ill I PART [it .
SELF INSPECTION, RECORDKEEPING AND REPORTING SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C. REPORTING
SECTION B: RECORDKEEPING i i1. Occurrences that must be reported
1. E&SC Plan Documentation
Permittees shall report the following occurrences:
The approved E&SC pfan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit (a) Visible sediment de[1Osition in a stream or wetland
The following items pertaining to the E&SC plan shall be documented in the manner
described: (b) Oil spills if:
They are 25 gallons or more,
�5 II b b I d t' 24h
Item to Document
Documentation equirements
(a) Each E&SC Measure has been installed
u
Initial and date each E&IC Measure on a copy
and does not sianificartly deviate from the
of the approved F&SC Plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC Plan.
E&SC Measure s.ncwn o the approved E&5C
Plan. This documertatiorrt Is required upon the
initial installation of t'ne E&SC Measures or if
the F&SC Measures arel odified after initial
lnsta'1atlon.
(b) A phase ofgrading has been completed.
Initial and date a copy oflthe approved E&SC
Plan or complete, date aV sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
initial and date a copy of the approved E&SC
in accordi,r'ance with the approved ESC
Pian or complete, date apci sign an inspection
Plan.
report to indicate compi ante with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC Measures
have been performed.
(e) Correct;ve actions Crave been taken
Irnitia[ and date a copy of
the approved E&SC
to E&SC Measures.
plan ur complete, date apd
sign an inspection
report to indicate the cn
pletion of the
corrective action.
2. Additional Documentation
In addition to the E&SC Plan documents above, the following ite :.s shall be kept on the
site
and available for agency inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make this
requirement not practical:
(a) This general permit as well as the certificate of coverage, aft r it is received.
(b) Records of inspections made during the previous 30 days. The permittee shall record
the required observations on the Inspection Record Form provided by the Division or
a similar inspection form that includes all the required etemeftts. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
(c) All data used to complete the Notice of Intent and older inspection retards shall be
maintained for a period of three years after project completion and made available
upon request. [40 CFR 122.41]
• They are less than A ga ons ut cannot e c Bane up wit tin ours,
• They cause sheen gn surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(a) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water ACt (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(b) Anticipated bypasses and unanticipated bypasses.
(c) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes Gild Otlter Requirements
i
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate civision regional office within the tirneframes and in accordance with the
other requirements listed below. Occurrences outside norinal business hours may also be
reported to the Division's Emergency Response personnel at [phone], (800)
853-0368 or [phone].
Occurrence
ReportingTimeframes (After Discovery) and Other Requirements
(a) Visible sediment
. Within 24 hours, an oral or electronic notification.
deposition in a
. Within.7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis:
. If the stream is named on the ,X 3M LL]ist as impaired for sediment-
ated causes the ermittee may be required to perform additional
rcl P Y q
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions..
(b) Oil spills and
. Within 24 hours, an oral or electronic notification. The notification
release of
s}tall include information about the date, time, nature, volume and
hazardous
lac�tion of the spill or release.
suhstances per Item
1(b)-(c) above
(c) Anticipated
+ A report at least ten days before the date of the bypass, if possible -
bypasses [40 CFR
The report shall include an evaluation ofthe anticipated quality and
122.41(m)(3)]
ejf�ct of the bypass.
(d) Unanticipated
. Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
. 4iilthin 7calendardays, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass,
(el Noncompliance
• Within 24 hours, an oral or electronic notification.
with the conditions
. Within 7calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
irrchiding exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122,41(I)(7)]
pfgvent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6).
. biyision staff may waive the requirement for a written report on a
c=se-by-case basis-
NCGOI
SELF-IlySPECTION,
RECORDKEEPING
AND
REPORTING
EFFECTIVE:
04/01/19
r

0
Construction 1. Clear, grab, and strip the area under the embankment of all vegetation and
root mat. Remove all surface soil containing high amounts of organic matter
Specifications
and stockpile or dispose of it properly. Haul all objectionable material to the
designated disposal area. Place temporary sediment control measures below
basinas needed
2. Ensure that fill material for the embankment is free of roots, woody
vegetation, organic matter, and other objectionable material. Place the fill in
lifts not to exceed 9 inches, and machine compact it. Over fill the embankmmt
6 inches to allow for settlement.
3. Shape the basin to the specified dimensions. Prevent the skimming device
from settling into the mud by excavating a shallow pit under the skimmer or
providing a low support under the skimmer of stone or timber.
4. Place the barrel (typically 4-inch Schedule 40 PVC pipe) oil a far, mouth
foundation of impervious soil. Do not we pervious material such as sand,
gravel, or crashed stone as backfill around the pipe. Place the fill material
around the pipe spillway in 4-.inch layers and compact it under and around
the pipe to at least the some density as the adjacent embankment. Care must
be taken not to raise the pipe from the firm contact with its foundation when
compacting under the pipe haunches.
Place a minimum depth of 2 feet of compacted backfill over the pipe spillway
before creasing it with contraction equipment In no case Should the pipe
conduit be installed by cutting a trench through the dam after the embankment
is complete.
5. Assemble the skimmer following the manufacturers emitraction, or as
designed.
6. Lay the assembled skimmer on the bottom of the basin with the Flexible
joint at the inlet of the barrel pipe. Attach the flexible joint to the barrel pipe
and position the skimmer over the excavated pit or support. Busier in attach
a rope to the skimmer and anchor it to the side of the basin. This will be used
to pull the skimmer to the side for maintenance.
7. Earthen spillways -Install the spillway in undisturbed soil to the greatest
extent possible. The achievement ofplanned elevations, grade, design width,
and entrance and exit channel slopes are critical to the successful operation
of the spillway. The spillway should be lined with laminated plastic or
impermeable geotextile fabric. The fabric most be wide and long enough to
cover the bottom and sides and extend onto the top of the dam for anchoring
in a trench. The edges may be secured with 8-inch staples or pins. The fabric
must be long enough to extend down the slope and exit onto stable ground.
The width of the fabric must be one piece, not joined or spliced; otherwise
water can get under the fabric. tribe length of the fabric is insufficient for the
entire length of the spillway, multiple sections, spanning the complete width,
may be used. The upper sections) should overlap the lower sections) so
that water cannot flow under the fabric. Secure the upper edge and sides.
of the fabric in a trench with staples or pins. (Adapted front "A Manual for
Designing, Installing and Maintaining Skimmer Sediment B,n ins." February,
1999. J. W. Faireloth & Son.).
8. Inlets -Discharge water into the basin in a manner to prevent erosion. Use
tompomry, slope drains or diversions with outlet protection to divert sediment -
laden water to the upper end of the pool area to improve basin trap efficiency
(References: Bunoff'Conrrol Measures and Outlet Prorectian)
6.64.8 Rev. 6106
DIMENSIONED AND
NOTED ON PLANS
W/ STONE LINING
Practice Standards and Specifrca/Ions
9. Erosion control -Construct the structure so that the disturbed area is
minimized. Divert surface water away from bare areas. Complete the
embankment before the area is cleared. Stabilize the emergency spillway
embankment and all other disturbed areas above the crest of the principal.
spillway immediately after construction (References Sur ace Stabilization),
10. Install porous baffles as specified in Practice 6.65, Porous Baffles.
11. After all the sediment -producing areas have been permanently stabilized,
remove the structure and all the unstable sediment Smooth the area to
blend with the adjoining areas and stabilize properly (References: Surface
Stabilization).
Maintenance Inspect skimmer sediment basins at least weekly and after each significant
(one-half inch or greater) rainfall event and repair immediately. Remove
sediment and restore the basin to its original dimensions when sediment
accumulates to one-half the height of the first bare. Pull the skimmer to
one side so that the sediment underneath it can be excavated. Excavate the
sediment from fie entire basin, not just around the skimmer or the first tell.
Make sure vegetation growing in the bottom of the basin does not hold down
the skimmer.
Repair the baffles if they me damaged. Re -anchor the baffles if water is
flowing underneath or around than.
If the skimmer is clogged with trash and. there is water in the basin, usually
jerking on the rope will make the skimmer bob up and down and dislodge
the debris and restore flow. If this does not work, pull the skimmer over to
the side of the basin and remove the debris. Also check the orifice inside the
skimmer to see if it is clogged; if so remove the debris.
If the skimmer arm or barrel pipe is clogged, the orifice can be removed and
the obstruction cleared with a plumber's snake or by flushing with water. Be
sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs
with fabric that spans the full width of the spillway. Check the embankment,
spillways, and outlet for erosion damage, and inspect the embankment for
piping and settlement. Make all necessary repairs immediately. Remove all
trash and other debris from the skimmer and pool. areas.
Freezing weather can result in ice forming in the basin. Some special
precautions should be taken in the winter to prevent the skimmer from
plugging with ice.
Ron, W06 6.64.9
SKIMMER/SEDIMENT BASIN
CONSTRUCTION AND MAINTAINCE PROCEDURES
PERSPECTIVE VIEW
3:1 MAX
NOTES' SLOPES
1. NO SILT FENCE ALLOWED. POROUS COIR FIBER BAFFLE REQUIRED.
2. DRIVE STEEL FENCE POST AT LEAST 18" INTO SOLID GROUND
3. WOOD POSTS ARE NOT ACCEPTABLE7----
SEDIMENT PIT
4. BAFFLES SPACED A MAXIMUM OF 8' IN FRONT
TWO-THIRDS OF SEDIMENT TRAP (CLOSEST TO RIP -RAP WEIR).
BOTTOM Of BAFFLE IN
6" X 6" TRENCH AND
FILLED WITH SOIL AND
COMPACTED
ATTACH COIR FIBER BAFFLE
TO HOG WIRE USING WIRE
/ TOP OF BAFFLE SHOULD BE 6"
HIGHER THAN THE BOTTOM OF
THE SPILLWAY
HOG WIRE ATTACHED J
TO POSTS IMTH LENGTHS
OF WIRE
BAFFLE INSTALLATION
Construction
MATERIALS
7. Extend 9 gauge minimum high tension wife strand to side of basin or install
steel T-posts to anchor baffle to side of basin and secure to vertical end posts as
Specifications
1. Use matting made of 100%coconut fibermoir) twine woven into high
shown in Pigum 6.65b.
strength matrix with the properties shown in Table 6.65a.
8. Drape the coir fiber mat over the wire strand mounted at a height of 6 inches
2. Staples should be made of 0.125 inch diameter new steel wire football into a
above the spillway elevation. Secure the coir fiber mat to the wire strand with
`U' shape not less than 12 inches in length with a thrust of I inch in width. The
-
plastic ties or wire fasteners. Anchor the matting to the sides and floor of the
staples anchor theporous baffles into the sides and bottom ofthe basin.
basin with 12 inch wire staples, apprommately I If apart, along the bottom and
side slopes of tire basin.
3. Ensure that steel poste for porous baffles era of a sufficient height to support
bales at dcodrad freight. Posts should be approximately 13f8" wide pleasured
9. Do notsplice the fabric, but use a continuous piece across the basin
parallel to the fence, and have a minimum weight of 1.25 lb/linear ft. Afar Posts
must be equipped with mn anchor plate having a minimum area of 14.0 square
10. Adjustments may be required in the stapling requirements to fit individual
inches and be of the self -fastener angle steel type to have a means of rotawng
site conditions,
wire and coir fiber mat in the detailed position without displacement
Maintenance Inspect baffles at Icastonce a week and after each rainfall. Make any required
4. Use 9-gauge high tension wire for support wire.
repairs immediately.
Table 6.65a Specifications
for Porous Baffle Material
Be sure tomaintain access to the baffles. Should the fabric of baffle collapse,
coir Fiber Baffle Material Property Requirement
Thickness
0.30 in, minimum
tenr, <lecomposa, or become ineffective, replace it promptly
Tensile Strength (Wet)
900if 680 Iblft minimum
Remove sediment deposits reaches to provide adequate
Elongation Met
69% x 34% maximum
reduce profull,
r the next rain and to reduce pressure
a volumerain n the bafflesreplace
Flow Velocity
10-12 fVsec
Takestor
a,oi
Take erne m avoid damaging the bales during dcanotn, and replace if damaged
t,
Weight
20 oz/SY 680 /m minimum
during cleanout operations. Sediment depth should never exceed half the
Minimum Width
6.5 feet
designed storage depth.
Open Area
50% maximum
After the eontributing drainage area has been properly stabilized, reprove all
CONSTRUCTION
baffle materials and unstable sediment deposits, bring the area to grade, and
1. Cnnde the basin so that the bottom is level front to back and aide to sida,
sr h'hze it
2. Insmll thecoir fiber baffles immediately upon excavation of the bashes:
3. Install posts across the width of the sediment trap (Practice6.62, Sedisnuall
Fence).
4. Steel posts should be driven to a depth of 24 inches and spaced a maximum of
4 Feet apart. Thu top of the fabric should be a minimum of 6 inches higher than
the invert of the spillway. fops of baffles should be a minimum oft inches mower
than the top of the ca then embankment
5. Install at least three rows of baffles between the inlet and outlet dlscharg,
point Basins less than 20 feet in length pixy use 2 baffles.
6..Attach a 9 gauge high tension wire strand to the steel posts at a height of 6
fiches above the spillway elevation with plastic ties or wife fasteners to Prevent
sagging. If the tssnpurary sediment basin will be converted to a reimamem
stomnwater basin of a greater depth, the bathe height should be based on file pool
depth during me as a temporary sediment basin.
TEMPORARY BASIN
BAFFLES
NITS
PVC END CAP
G
11111111111121111
Inflow
structure
Average - Area"
width w L
^ Armnaf brein water Was. of
top of principal spikway elevation
Pr4rtfoe S�ndardl S�ecfacatdares
• ikwoWivg--Allowtbe tnaxirnum masanable &4ention petWbct'om the
basin incompletely dewatered (at least 48 boors).
Inflow rate --Reduce the inflow velocity and divert all Oodimettd-face
runoff.
6olflas
f I
4lreiibwr '
I
Im
slat"'Je zone CP4Asg- etion
Micw
Plgure6. Example of a sediment bauin with a skimmar outlet end exnurldomw spillway. From Pepneyhems
Erosion and Sediment Pollution Control Manuel, March, 2000.
ttcr. Smt3 $.64.7
it
SKIMMER BASIN
NTS
VOLUME REQUIRED
1800 CFIQ25
TOP EL=
SEDIMENT BASIN #1 NO OUTLET
NTS
ARM ASSEMBLY
TOP VIEW
.'3fZHrd1
END CAP
PVC
IN SCHEDULE 40 PVC PIPE
E (SEE PLAN FOR DIA.)
m
HOSE
END VIEW
"C"ENCLOSURE
WATER ENTRY UNIT
iCHEDULE 40 PVC PIPE
(SEE PLAN FOR DIA.)
FRONT VIEW
ORIFICE PLATE
(SEE PLAN FOR DIA.)
TEE
SKIMMER DEWATERING DEVICE
NTS
31 MAX
SLOPES
FREEBOARD (T MIN)
SPILLWAY INVERT ELEV
EXTEND LINER V BELOW
BOTTOM ELEV.
APPROACH
CHANNEL
WATER
SURFACE
BERM CONTROL SECTION
EXIT SECTOR
\ SEE PLANS FOR LINER LENGTH
LEVEL OR
GREATER 1
PROFILE ALONG CENTERLINE
CROSS SECTION AT CONTROL SECTION
TYPICAL EXCAVATED EARTH SPILLWAY
NTS
Notes
1. La is the length of the riprap
apron.
• 2. d=1.5 times the maximum
stone diameter but not less ..
than 6".
Pipe Outlet to Flat Area- 3. In a well-defined channel ex -
No Well-definedtend the apron up the channel
banks to an elevation of 6"
above the maximum tailwater
depthortothetopofthe bank,
ado A whichever is less.
_4. A filter blanket or filter fabric
__should be installed between
the riprap andsoil foundation.
Construction I. Ensure that the subgrade for the filter and riprap follows the required lines
and grades shown in the plan. Compact any fill required in the subgrade to the
La _-_. Specifications density of the sunnundingundisturbedmaterial. Lowarcasinthesubgradeon
undisturbed soil may also be filled by increasing the riposte thickness.
II -I_I 2. The riprap and gravel filter most conform to the specified grading lhnits
III Y7 it flit
-� shown on the plans.
Section AA *Fdter 3. Filter cloth, when used, must meet design reymirrnmentz mud be properlyblanket protected tiom pwnching car tearing dm'ing installation. Repair any damage by
removing the fairer, and placing another piece of filter cloth overthe dam aged
Pipe Outlet to Well-defined area All connecting joints should overlap so the top layer is above the
Channel downstream layer a minimum of 1 foot If the damage is extensive, replace
the entire filter cloth
4. Ripmp maybe placed by equipment, but take care to avoid damaging the
filter.
4PIanl
5. The minimum thickness of the riprapshould be L5 times the maximum
stonedimnrtea.6. Riprap may be field stone or rough quarry stone. It should be hard,
angular, highly weather-resistantand well graded7. Construct the apron on zerograde with no overfill at the end. Make the
top of the riprap at the downsu'emu end level with The receiving area or slightly
below it.
8. Ensure that the apron is properly aligned with the receiving stremn
and preferably straight throughout its length- If a curve is needed to fit site
La conditions_ place it in the upper section of the apron.
9. bmmediately afterconsrnaction, stabilize all disturbed areaswithvegetation
(Practices 6.10, Temporary Seeding, and 6.11, Permanent Seeding).
i-=ova III lea -1i -_-
II 1
Maintenance Inspeetriprapoutict structures weekly and after significant (li2inch or greater)
Filter rainfall events to see if any erosion around or below the rimer, has taken place,
blanket Or if stones have been chslodged Immediately make all needed repairs to
FlBure s, 41. Rprap ounet praadwn Imwtrfiea from va scoterprevent further damage.
References Surface Stablrzacon
6. 10, Tempoiat) Seeding
6.41.4 6.11. Permanent Seeding
6.15, Ripmp
Appendix
8.06, Design of Ripmp Outlet' Protection
Rice C.li., Kadavv, K.0 --Ripmp Design for Pipe Spillways at
I I PAID 1 07" Presented at the December 13, 1994 International Winter
Meeting, American Society of Agricultural Engineers, Paper Number
942541.
Rice, C.E. and K.0 Kadavy. 1994, Plunge Pool Design at Submerged Pipe
Spillway Outlets. 'fmnsactions of the ASAE 37(4)'.116T 117'3.
FIIWA. 1983. Hydralic Design of Energy Dissipaters for Culverts and
Channels. llydmulic Engineering (:ireular Number 14.
OUTLET PROTECTION
NITS
RAFTING AND DESIGN O
�-
SERVICES,
INC.
6728 Carbonton Road
Sanford, North Carolina 27330
[phone] phone
[e-mail]
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REVISIONS
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale:
NTS
Drawn by:
MTB
Sheet:
Designed by:
MTB
C8 of 13
Reviewed by.
MTB
Project Number:
DDS JOB #: 2021-10
Date.
MAR 2021

r. Clear the foundation area of trees, stumps, roots, loose rock, and Other
Construction
objectionablemmentd.
Specifications
2. Excavate the crass section to the lines and grades of the foundation of the
liner as shown on the plans. Hying over-weavated areas to grade bS increasing
The firnknass of die liner or by badfilling with moist soil compacted to the
density of the surrounding material.
3. Concrete linings:
• Place concrete linings to the thickness shown On the plans mid finish them
in a workmanlike [Wanner
• Take adequateprecautions to protectrres ry placed concrete from extreme
temperatures to ensure proper curing.
• Ensure that substrate is mist when concrete is poured
• Install foundation events or weep holes where needed to protect against
uplift and piping.
• PYm'Id0I8IISVar6e(COntTHedtlnti QIIl18 COCM1rOlCraekungaap(XORinialely
20-feet intervals. 'rhesejoints may be formed by using a 1/2-inch thick
removable template or by sawing to a depth of at least 1 inch.
+ Install expansion Joints at internals not to exceed I feet
4. Rock riprap linings: Practice 6.15, Rrprap,
5. Place fitters, beddings, and faundauon drains to line and grade in the
manner specified. Place filter and bedding materials immediately after slope
preparation. For synthetic filter fabrics_ overlap the downstream edge by at
loom t 2 inches with the upstream edge which is buried a immature 12 inches
in a trench. See figure 6.14a, page 6,14.6. Space anchor pins every 3 feet
along the overlap. Spread granular materials in a uniform layer, when mre
than one gradation is required, spread the lavers so there is mnumal mixing.
Filter material should consist of at least 3 incites of material on all sides of
the drain pipe. The drain pipe conduit should be a minimum of 4 inches in
diameter. Acceptable materials include perforated, continuous, closed joint
conduits of clay, concrete, metal, plastic_ or other suitable material {Practice
6. g1, Subsu{face Diainj.
6. Perform ail channel construction to keep erosion and water pollution
to a minimum. Immediately upon completion of the channel, vegetate all
disturbed aeon or Otherwise protect them against soil erosiorl where channel
amstruction wilt take longer than 30 days, statnlizv channels by reaches.
Maintenance
Inspect channels at regular intervals as well as after major rains, and make
repairs promptly. Give special attraction to the outlet and inlet sections and
other points where concentrated flaw entets. Carefully check stability at road
crossings, and look for indications of pipag, scour holes, or bark failures.
Make repairs irmnadimely. Maintain all vegetation adjacent to the chanrtet in
ahealthy, vigorous condition to protect the area from erosion and scour during
out -of -bank flow.
w
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"mt +% Tl e
•.
.-
GRAVEL BEDDING
.fRfB•LIC-SHAPED WATERWAY WITH STONE CENTER DRAIN
RIP RAP LINED TEMPORARY/PERMANENT
nit/Cncie%u niore%Y
NTS
Stake at 3'-5`
intervals
rat
a
r4 �-
ire r�
,r
re,
f
s Li ed' slot at 25`
°s intervals
Initial channel
anchor trench
i
Intermittent AL
check slat
Slope surface shop be smooth before If there is a berm at the top of
placement for proper soil contact. slope, anchor upsiope of the berm.
Stapling pattern as Min' 2" " rr Anchor in 6"x6" min 'Trench
per manufacturers
recommenclations.
For slopes less than 31-1:1111, rolls
may be placed in horizontalstrips.
f and staple at 12"intervals.
.. - Min. 6" overlap.
Staple overlaps
max. 5" spacing.
Bring material down to a level area,
turn the end under 4" and staple at 12"
intervals.
Lime, fertilize, and seed before installation. planting
of shrubs, trees, etc, should occur after installation.
(SHAPED BY BULLDOZER)
'1�i: �r•••ip1
y��rr
iFILTER FABRIC L- • -
BEDDINGGRAVEL
(SHAPED BY MOTOR GRADER)
Construction t• Remove all trees, brush, stamps, and other objectionable material from the
foundation area, and dispose of properly.
Specifications
2. Excavate the channel, and shape it to neat lines and dimensions shown on
the plans plus a 0.2-foot overcut around the channel perimeter to allow for
bulking during seedbed preparations and sots buildup.
3. Remove and properly dispose of all excess soil so that surface water may
enter the channel freely.
4. The procedure used to establish grass in the channel will depend upon the
severity of the conditions and selection of species. Protect the channel with
mulch or a temporary liner sufficient to withstand anticipated velocities during
the establishment period (Appendix 8.05).
Maintenance Duringtheestablishment period. check grass -lined channels afterevery rainfall.
After grass is established periodically check the channel; check it after every
heavy rainfall event. Immediately make repairs. It is particularly important to
check the channel outlet and all road crossings for bank stability and evidence
of piping or scour holes_ Removo all significant sediment accumulations to
maintain the designed carrying capacity. Keep the grass in a healthy, vigorous
condition at all times, since it is the primary erosion protection for the channel
(Practice 6.11, Permarient Seeding).
GRASS LINED TEMPORARY/PERMANENT
DIVERSION DITCH
NTS
s • 139M,
r
besign depth
,t
Overcut channel z' is allow bulking .. "
during seedbed preparatior:
Intermittent check slot
Shingle -lap spliced ends or begin new
roll in an intermittent check slot
61101,1111,1111
r�
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t_on9ltualrlai ar4hor trench
NOTES:
1. Design velocities exceeding 2 ft/sec require temporary blankets, mots or similar liners to protect
seed and soil until vegetation becomes established,
2. Grass -lined channels with design velocities exceeding 6 ft/sec should include turf reinforcement
mots
TEMPORARY LINING FOR
TEMPORARY/PERMANENT DIVERSION DITCH
NTS
Construction Construction
Specifications Even if properly designed, if not properly installed, RECP's will probably
not function as desired. Proper installation is imperative. Even if properly
installed, if not properly timed and nourished, vegetation will probably not
grow as desired. Proper seed/vegetation selection is also imperative.
Grade the surface of installation areas so that the ground is smooth and loose.
When seeding prior to installation, follow the steps for seed bed preparation,
soil amendments, and seeding in Surface .5rabitiz(aton, 6.1. AlI gullies, lilis,
and any other disturbed areas must be fine graded prior to installation Spread
seed before RECP installation. (Important: Remove all large rocks, dirt clods,
stumps, roots, grass clumps, trash, and other obstructions from the soil surface
to allow for direct contact between the soil surface and the RECP)
Terminal anchor trenches are required at RECP ends and intermittent trenches
must be constructed across channels at 25-foot intervals. Terminal anchor
trenches should be a minimum of 12 inches in depth and 6 inches in width,
while intermittent trenches need be only 6 inches deep and 6 inches wide.
Installation for Stopes— Place the RECP 2-3 feet over the top of the slope
and into air excavated end trench measuring approximately 12 inches deep
by 6 inches Ride. Pin the RECP at I foot intervals along the bottom of the
trench, backfill, and compact. Unroll the RECP down (or along) the slope
maintaining direct contact between the soil and the RECP Overlap adjacent
rolls a minimum of 3 inches. Pin the RECP to the ground using staples or
pins in a 3 foot center -to -center pattern. Less frequent stapting/paraing is
acceptable on moderate slopes.
Installation in Channels— Excavate terminal trenches (12 inches deep and 6
inches wide);aeross the channel at the upper and lower end of the lined Channel
sections. At 25-foot intervals along the charnel, anchor the RECP across the
channel either in 6 inch by 6 inch trenches or by installing two closely spaced
rows of anchors. Excavate longitudinal trenches 6 inches deep and wide along
channel edges (above water line) in which to bury the outside RECP edges.
Place the first RECP at the downstream end of the channel. Place the end of
the first RECP in the terminal trench and pin it at i foot intervals along the
bottom of the trench.
Note: The RECP should be placed upside down in the trench with the roll on
the downstream side of the bench.
Once pinned and backfilled, the RECP is deplo} ed by wrapping over the
top of the trench and unrolling upstream. If the channel is wider than the
provided rolls, place ends of adjacent rolls in the terminal trench. overlapping
the adjacent rolls a miturnorn of 3 inches. Pin at i foot intervals, backfill, and
compact unroll the RECP in the upstream direction until reaching the first
intermittent trench. Fold the RECP back over itself, positioning the roll on
the downstream side of the trench, and allowing the mat to conform to the
trench.
Then pin the RECP (two layers) to the bottom of the trench, backfill, and
compact Continue up the charnel (wrapping over the top of the intermittent
trench) repeating this step at other intermittent trenches, until reaching the
upper terminal trench.
At the uppeir terminal trench, allow the RECP to conform to the trench,
secure with pins or staples, backfill, compact and then bring the that back
over the top of the trench and onto the existing mat (2 to 3 feet overlap in the
downstream direction), and pin at I foot intervals across the RECP. When
starting installation of a new, roll, begin in a trench or shingle -lap ends of rolls
a minimum of I foot with upstream RECP on top to prevent uplifting. Place
the outside edges of the'REC'P(s) in longitudinal trenches, pin, backfill, and
compact.
Anchoring Devices-1 I gauge, at least 6 inches length by I inch width staples
or 12 inch minimum length wooden stakes are recommended for anchoring the
RECP to the ground.
Drive staples or pins so that the top of the staple or pin is flush with die ground
surface. Anchor each RECP every 3 feet along its center. Longitudinal
overlaps inust be sufficient to accommodate a row, of anchors and perform
along the entire length of overlap and anchored every 3 feet along the overlap
length. Roll ends may be spliced by overlapping I foot (in the direction of
water flow); wi th the upstremn/upslope mat placed air top of the low tream/
downslope RECP. This overlap should be anchored at I foot spacing across
the RECP. When installing multiple width mats heat seamed in the fadlory, all
factory seams and field overlaps should be similarly anchored.
9
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NTS
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TEMPORARY/PERMANENT DIVERSION DITCH
NTS
RAFTING AND DESIGN O
SERVICES, INC.
6728 Carbonton Road
Sanford, North Carolina 27330
[phone] phone
[e-mail]
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REVISIONS
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale.
NTS
Drawn by
MTB
Sheet
Designed by:
MTB
(�
C9 A Of 13
Reviewed by:
MTB
Project Number:
DDS JOB #: 2021-10
Date:
MAR 2021

I,
DISCHARGE LINE
FROMPUMP
STONE BEL
EXISTING
GRADE
SEDIMENT FILTER BAG
(BAG SIZE BASED ON MANUFACTURER'S RECOMMENDATIONS)
LAY ON 6-12" THICK BFD OF 2"-3" DIA. STONE
133 Dewatering Bag Selection
Use the following steps to select an appropriately sized Dewatering Dag Consult with the ACE to select
Dewatering Bag sin ifim un'icient information is known about the site conditions
1. Determine the peak flow regenerated drawn the clowwwring pump ingallora per minute.
2. Determine llw peak now ram through the Dewatering Bag in gallons pet minute based on the
Dewatering Bag peak flow rote and the total surface area.lanwided by the manufacturer.
3. Select a Dewatering Bag that passes a mirumtun of two times the peak now rategenerated from the
dewatermi, pump as determined in Step 1 to account for a 50%clogging factor.
1.3.4 Installation
Install the Dewul'ering Bag on a mild slope to ensure incoming water flows downhill through the
Dewatering Bag Secure the hose to bag connection using a heavy duty. pipe clamp, rope, or othersuitable
means to prevent leakage_ When using a rope or attach the pump hose W the Dewatering Bag, make a
min Crum o1 6 wraps aremnd the hose over a 6-inch width of the bag and fasten with a secure rope knot.
The bottom area of Dewatering Bags will not allow flow to pass through when the bag is placed on a low -
permeable or i. erne ble sutlace.. Place the Dewatering Bag en an to hay bake, or other highly
pe rap uth @ aggregate, y B e
permeable surface ro maximize wuwr now through the entire surface area of the bag. blanitor the
Dewatering Bag at all it." while the pwap is tuning While monitoring, ensure the hose to bag
connection is secure with only minimal leaking: Check for now permeating from the bull= surface of the
Nwatenng:Bag, If Plow splicers rectium d, move bag w a surface with higher permeability_
#57
Use the following guidelines and any specific guidelines provided by the manufacturer for Dewatering Bag
installations.
• Transport and place Demarcating Bags with care to prevent ripping or tearing the fabric.
• Avoid installing on steep slopes we the bag may roll, causing failure.
• Insert the discharge hose a minimum of I -foot inside the resonating Bag.
• Do not insert more than one discharge hose into the Bewitching Bag.
• Avoid use of excessive flow rates oroverfilling the Dewatering Bag. This may cause the bag to rapture
or cause failure to the hose to bag connection.
1.3.5 Removal
Dispose of the Dewatering Bag as directed by the RCE. If allowed, the Dewatering Bag may be cut open
and the contents seeded after removing the fabric. Securely tie off the pump hose connection sleeve when
transporting full Dewatering Bags for disposal Do not clean and reuse a Dewatering Bag after the voids
are clogged with trapped sedonent.
1.3.6 Inspection and Maintenance
Follow all manufacturer recommendations for inspection and maintenance guidelines. Replace Dewatering
Bags when trapped sediment has accumulated As 50Ss of the bagcapacity or in accordance with the
manufacturer's recommendations.
Dewatering Bags are full when they no longer efficiently filter sediment or pass water at a reasonable raw.
Incoming flow taws will vary depending on the size of the Dewatering Bag, the type and amount of
sediment discharged into the Dewaerhng Dag, the permeabaity of the underlying aggregate, and the degree
of slope on which the bag lies.
SEDIMENT FILTER BAG
NTS
EKWS�WNG GROUND SVOPE
�OP�
�SVO? OVND S
GR
a: li N
2.0 /o MIN SLOPE fix\
4.0% MAX SLOPE
sZ
F
TEMPORARY INTERNAL SITE ROAD
NTS
INSTALLATION
1. REMOVE ALL
4 BERM 4 TREES,BRUSH
EXISTIN_- G, GROUND 1 EXI
SLING GROUND
NOTE
1. SEE PLAN SHEET C-2 FOR WIDTH
HEIGHT DETERMINED BY SIDE SLOPES.
2. WIDTH INDICATED ON PLAN IS BOTTOM
WIDTH.
3. SEED PER TEMPORARY/PERMANENT
SEEDING SCHEDULE ON SHEET C-7.
4. NATURAL VOLUNTEER VEGETATION
SHALL REMAIN.
5. BERM ENDS SHALL BE4:1 SLOPES LIKE
SIDE SLOPES,
MAINTENANCE PLAN:
1. PUSH TOPSOIL AND UNSUITABLE MATERIAL TO
CREATE BERMS. CAP BERMS WITH TOPSOIL.
2, TRACK IN SLOPES TO ENSURE COMPACTION TO
PREVENT EROSION. STABLIZE AND SEED IMMEDIATELY,
3. STRAW AND NET OR HYDROSEED SLOPES TO
ENSURE SEED CONTACT WITH GROUND AND
GERMINATION.
4. DURING GRASS ESTABLISHMENT PERIOD, INSPECT
AFTER EVERY RAINFALL.
5. AFTER GRASS HAS ESTABLISHED, INSPECT
PERIODICALLY AND AFTER HEAVY RAINFALL,
IMMEDIATELY
MAKE REPAIRS.
6. PAY CLOSE ATTENTION TO STEEP SLOPE AREAS
BERM ENDS AND BERMS WITH DOWNHILL SLOPES
BELOW BERM.
7. GRASS SHOULD BE MAINTAINED IN A HEALTHY
VIGOROUS CONDITION ATALL TIMES, SINCE IMgHE
PRIMARY EROSION PROTECTION.
VEGETATIVE BERM (TYP)
TYPICAL CORNER/BEND
I
FILTER FABRIC
PUBLIC RIGHT OF WAY
MIN, STONE DEPTH
SEE NOTE B.
NOTES:
FILTER
FABRIC
A) MINIMUM WIDTH OF CONSTRUCTION ENTRANCE PAD SHALL BE 20 FT
B) STONE SHALL BE 2-3" WASHED STONE, 12" THICK,
C) THE ENTRANCE SHALL BE MAINTAINED TO PREVENT TRACKING OR FLOW-
ING OF SEDIMENT ONTO PUBLIC RIGHTS -OF -WAY. THIS MAY REQUIRE
PERIODIC TOP DRESSING WITH ADDITIONAL STONE AND REPAIR AND/OR
CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT.
D) INSTALL PADS WHERE SHOWN ON PLANS OR OTHERWISE DIRECTED
BY ENGINEER.
CONSTRUCTION ENTRANCE PAD
NTS
CLASS "B" RIP RAP
12" NCDOT #5 or
1157 WASHED
STONE
FILTER FABRIC
24" MAX
AT CENTER
-h - v & -rvr .t-Ty, t Jf,
A 1.5' SECTION A -A
A L B
Construction '.Place stone tithe lines and dimensions shown in the plan on a filter fabric
Specifications foundation. L ^THE DISTANCE SUCH THAT POINTS
2. Keep the center stone section at least 9 inches below natural ground level A AND B ARE OF EQUAL ELEVATION
where the dam abuts the channelbannks. Maintenance Inspect Chwkdam andchatriels at least weeklyand after each significant (1/2
3. Extend stone at least 1.5 feet beyond the ditch bank (Figure 6-83b) to keep inch or greater) rainfall event and repro immediately. Clean our sediment,
orator from cutting around the ands of the check dam.
straw, limbs, or other debris that could clog the channel when needed,
4. Set spacing between dams to assume that the elevation at the top of the Anticipate submergence anddeposition above the checkdam and erosion from
lower dam is the same as the toe elevation of the upper dam, high flows around the edges of the dam. Correct all damage immediately. If
significant erosion occurs between dates, additional measures can be taken
S. Protect the channel after the lowest check dam from heavy flow that could such as, installing a Protective riprap liner in that portion of the channel
cause erosion. (Practice 6,31, R*gIt dineandPaved Channels).
6. Make sure that the channel reach above the most upstream darn is stable, Remove sediment accumulated behind the dams as needed to prevent damage
to channel vegetation, allow the channel to drain through the stone check dam,
7. Ensure that other areas nfthechannel, such as culvert entrances below the and prevent large flows from carrying sediment aver the dam Add stones to
cheek dams, are not-subiect to darnaee or blockaac from displaced stones, dams 99 needed to maintain design height and cross section.
CHECK DAM
NTS
FILTER OF 1 INCH DIAMETER # 57
WASHED STONE 'f'u`'.'"'Fxruk1 Pi'%71' �%Szd{r `' R7ta,XX Sx.F:rf
i"1 o .` 0 t) ( Rr o)
NOTE: zy?
Coo
SILT FENCE FABRIC TO OVERLAP
HARDWARE CLOTH BY 12 INCHES
STEEL FENCE POST
WIRE FENCE SILT FENCE FABRIC HARDWARE CLOTH STEEL FENCE POST
ON WIRE FENCE ON WIRE FENCE
HARDWARE CLOTH
FILTER OF 1 INCH DIAMETER # PLAN VIEW NOTE:
57 WASHED STONE.e- USE SILT FENCE OUTLETS ONLY WHEN
DRAINAGE AREA DOES NOT EXCEED 1/4 ACRE
AND THERE 15 A LOW AREA, USE AS A REPAIR
FLOW DIRECTION A3 Xj"i 18 OF SILT FENCE FAILURES.
GRADE STEEL FENCE POST SET
HARDWARE CLOTH MAXIMUM 2 FEET APART
6 WIRE FENCE
SIDE VIEW
Li
T77)/7
SILTFENCE
FABRIC
,Ov", FP lit
12 l< ,. 1G�i
F
INC,IESII
I iI i
W
...-'a
i Installation: Refer to the approved erosion control plan for location, extent, and -
specifications. If silt fence is not installed correctly the fast time, it will have to
be reconstructed. Determine the exact location of the outlet before completing U NOTE: u
installation of the silt fence, taking into Consideration: BURY WIRE FENCE, HARDWARE CLOTH, AND
FRONT VIEW SILT FENCE FABRIC 6 INCHES INTO THE
TRENCH
I. Installation at the lowest point(s) in the fence where water will pond.
Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any
2. Maximum allowable drainage area restriction for silt fence. required repairs immediately.
3. Installation where the outlet is accessible for installation, maintenance and Should the fabric of a sediment fence collapse, tear, decompose or become
ineffective, replace it promptly.
removal.
Remove sediment deposits as necessary to provide adequate storage volume
4. Placement of the outlet so that water flowing through it will not create an for the next rain and to reduce pressure on the fence. Take care to avoid
erosion hazard below - avoid steep slopes below the outlet and areas undermining the fence during clement
without protective vegetation. Use slope drains if necessary. Remove all fencing materials and unstable sediment deposits and bring the
area to grade and stabilize it after the contributing drainage area has been
The silt fence outlet shall be installed in accordance with the standard detail, and properly stabilized,
the approved erosion control plan.
SILT FENCE T OU LET
NTS
SEDIMENT FENCE INSTALLATION USING THE SLICING METHOD
Instead of excavating a trench, placing fabric and then backfilling trench,
sediment fence may be installed using specially designed equipment that
inserts the fabric into a cut sliced in the ground with a disc (Figure 6.62b).
Installation 1- The base of both end posts should be at least one foot higher than the
Specifications middle of the fence. Check with a level if necessary.
2. Install posts 4 feet apart in critical areas and 6 :feet apart on standard
applications.
3. Install posts 2 feet deep on the downstream side of the silt fence, and
as close as possible to the fabric, enabling posts to support the fabric from MIN. 10 GA.
upstream water pressure. LINE WIRES
4. Install posts with the nipples facing away from the silt fabric.
5. Attach the fabric to each post with three ties, all spaced within the top 8
4 inches of the fabric, Attach each tie diagonally 45 degrees through the fabric,
with each puncture at least 1 inch vertically apart. Also, each tie should be
positioned to hang on a post nipple when tightened to prevent sagging.
i 6. Wrap approximately 6 inches of fabric around the end posts and secure
with 3 ties.
7, No more than 24 inches of a 36 inch fabric is allowed above ground
level.
8. The installation should be checked and corrected for any deviations before
compaction.
9. Compaction is vitally important for effective results. Compact the soil
immediately next to the silt fence fabric with the front wheal of the tractor,
skid steer, or roller exerting at least 60 pounds per square inch. Compact the
upstream side first, and then each side twice for a total of 4 trips.
a' MAX.
ill
FRONT VIEW
Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any
NOTE.
required repairs immediately.
DOES NOT EXCEED 1/4 ACRE AND NEVER IN
AREAS OF CONCENTRATED FLOW
Should the fabric of a sediment fence collapse, tear, decompose or become
-USE SILT FENCE ONLY WHEN DRAINAGE AREA
ineffective, replace it promptly.
-END OF SILT FENCE NEEDS TO BE TURNED UPHILL.
Remove sediment deposits as necessary to provide adequate storage volume
for the next rain and to reduce pressure on the fence. Take care to avoid
undermining the fence during cleanout-
Remove all fencing materials and unstable sediment deposits and bring the
area to grade and stabilize it after the contributing drainage area has been
properly stabilized.
SILT FENCE
NTS
SECTION VIEW
4
N
STEEL POST
WOVEN WIRE FABRIC
� SILT FENCE GEOTEXTILE FABRIC
BACKFILL TRENCH
OVER SILT FENCE
2-1/2 GA.
MEDIATE
GRADE
FOR REPAIR OF SILT
FENCE FAILURES, USE
No. 57 WASHED STONE.
FOR ANCHOR WHEN SIU
FENCE IS PROTECTING
CATCH BASIN.
RAFTING AND DESIGN
O
SERVICES, INC.
6728 Carbonton Road
Sanford, North Carolina 27330
[phone] phone
[e-mail]
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REVISIONS
AGENCY REVIEW ONLY
NOT
FOR CONSTRUCTION
Scale:
Drawn by:
NTS
MTB
Sheet:
Designed by:
MTB
C 10 of 13
Reviewed by:
MTB
Project Number:
Date:
DDS JOB
M 2021-10
MAR
2021

ICF aid Roinlottement
Bracing Frarna
Dock Unity Rakhc
c Transom Clamp
Pane[
Posl End
N
PERENNIAL STREAM
TOP VIEW
ACCESS ROAD (TYP)
--BASE PLATE FOOTING
DESIGN BY OTHERS
BRIDGE ABUTMENT W/ WING WALLS (TYP)
DESIGN BY OTHERS
Im
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TYPICAL SECTION VIEW
Y
NOTES:
DETAIL FOR ILLUSTRATION ONLY. ACTUAL DESIGN IS REQUIRED
BY BRIDGE MANUFACTURE. TO BE CONDUCTED PRIOR TO
SITE CONSTRUCTION START.
ACCESS ROAD (TYP)
(4 )
(31-01 (41
'31
Nracmg
FtemR (taker
Eno Post
Roam (10')
a d t? p U fl
M2 Ttaiu.,pm (19'•1 56-)
w
M2=Brace (1e'•tOD
Is% )
r'afp1N r'Mt
Transom
(3'h*)
Clamp
116'7
Bra ng Bott
(10')
L
1 (121
R"ibw'd FWt
Cg'md 5M1
TYPICAL BAILEY STYLE BRIDGE DETAIL
NITS
BASE PLATE FOOTING
DESIGN BY OTHERS
I
t—SILT FENCE (TYP)
I r.
ABUTMENT W/ WING WALLS
4.0' MIN SETBACK FROM STREAM BANK EACH SIDE (TYP)
TO SLOPE TO ONE END (TYP)
BAILEY BRIDGE OR EQUIVALENT (TYP)
DESIGN BY OTHERS
GRAVEL ACCESS ROAD (TYP)
Q
NOTES
DETAIL FOR ILLUSTRATION ONLY, ACTUAL DESIGN IS REQUIRED
BY BRIDGE MANUFACTURE.
BRIDGE ABUTMENTS MAY BE CONSTRUCTED OF MODULAR CONCRETE BLOCKS
SLOPE TIES MAYBE REQUIRED PER GEOTECHINCAL ENGINEER RECOMMENDATIONS
ABUTMENTS SHALL NOT BEAR BRIDGE LOAD- BRIDGE SHALL HAVE SEPARATE FOOTINGS
FINAL BRIDGE DESIGN TO MEET STATE BUILDING CODE AND MSHA SAFETY STANDARDS
T FENCE OUTLET AT TURN (TYP)
D PROPOSED DITCH OUTLET
ACCESS ROAD (TYP)
"y.i/ 1,ti.-y��"t�.,..t A s ,.
a { - ti
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:IIII ;ir III-I�.rl
- Illy I I 1 TI-I I I I i J � f-IT` : I I I
1 II II7 III I I'
I i-III I I-" 'M I IH I i�1-
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-,TIJlI_ IIII -,I
�'t'rryp �I IIII I!I II11 II�I�iI �lr��=fll /
TYPICAL BRIDGE ABUTMENT LOCATION DETAIL
NITS
ISOMETRIC VIEW
ABUTMENT W1 WING WALLS
4.0' MIN SETBACK FROM STREAM BANK EACH SIDE (TYP)
SHOULDER (TYP)
FILL SLOPE (TYP)
3:1 MAX
r
GRADE SLOPE FROM ABUTMENT TO DRAIN INTO PIT
RAFTING AND DESIGN O
SERVICES, INC.
6728 Carbonton Road
Sanford, North Carolina
27330
[phone] phone
[e-mail]
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REVISIONS
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale.
Drawn by
NTS
MTB
Sheet
Designed by
MTB
Reviewed by
C 11 of 13
MTB
Project Number:
Date.
DDS JOB #: 2021-10
MAR 2021

Sediment Basin # 1
Calculate Flow - Rational Method
10-Yr Storm
Qt0 = CIA
2-Yr Storm
Q2 = CIA
Q10= 127.07
Q2 = 82.32
Calculate Required Surface Area
SA=Q25 x 435 sf/cfs
SA=
6257736 ft2
Side Slopes -
3,00 :1
Pond Depth=
5.00 ft
Basin Dims (Per SA)
Weir
Top
Bottom
Volume Required
Skimmer Basin # 2
DA # 2
Calculate Flow- Rational Method
25-Yr Storm
10-Yr Storm
25-Yr Storm
C= Qzs =CIA C Q^.34i
QLv =CIA
C 0:3
Q25 CIA
C=
ayal�4 I 10!80
9 SYf
1=
A 413� Q25 = 143.86 AG
Q - 16.0272
10 -
A 5.6'
Q25 =
18.144 A=
Calculate Required Surface Area
C
681
SA=Q25 x 325 sf/cfs
0,25 =
18.144 cfs
tt M
A
SA= 5896.8
Side Slopes = 3:1
Pond Depth= 3' ft
Qzs = 143.86
Basin Dims
Weir-
55 x
110:-.=
6050 sf
T, tp =
67 x
122=
8174 ft2
Bottum =
37 x
92 =
3404 sf
x 854 001= 62658 ft2
69174 ft2'
x 87'= 47628 ft2
VR=Ax1800 cf/ac A= 44.40 ac
VR= 79920.00 ft3
Volume Proposed
VP=((Top Area + Bottom Area)/2)xD Top= 62658.00 sf
Bottom= 47628.00 sf
Vp= 275715.00 ft3 D= 5.00 it
Basin has no outlet - to be permanent popd dug out with excavation
Skimmer Basin # 3 DA # 3-
Calculate Flow- Rational Method
10-YrStorm
Q70 = CIA
Q;,,= 17,7444
Calculate Required Surface Area
SA=Q25 x 325 sf/cfs
SA= 6528.6
Side Slopes = MAIN IMN:1
Pond Depth= 3,,ft
- ' r Storn
C= 0.3 = = CIA C= 0.3
1= 0,54 10.8
A= - Q25 = 20.088 A= 6.2
20.088 cfs
Basin Dims
Weir= 58 x =
Top = 70! x =
Bottom 40' x aB =
Volume Required
VR=Ax1800 cf/ac
A=
6.2
VR= 11160
Volume Proposed
Vp=((Top Area+ Bottom Area)/2)xD
Top=
6728
Bottom=
3920
VP= 15972
D--
3
EO T4
Weir Sizing
PerAutoCad Hydraflow Software
L- ft
D= ft
dwater= ':ft
Q25= 20.088 cfs
6728 sf
8960 ft 2
3920 sf
Volume Reauired
VR=Ax1800 cf/ac A=
VR= 10080
Volume Proposed
VP=((Top Area + Bottom At ea)/2)xD Top=
Bottom=
VP= 14181 D=
KA
Weir Sizine
Per AutoCad HydraflowSoftware
L=
ft
D=t
ft
dwater
E Aft
� ._
Qzs=
18.144 cfs
Velocity t „1rftjs
Weir Lining
Shear Calculation
T=yds y=
dwater
T= 0.42432lbs/ft2 s=
Use Class A Rip Rap
Skimmer Sizine
Calculate Dewater Time
Qd=V/Td V=
Td=
Qd- ;720
Calculate Orifice Diameter
D=sq rt((Qd/(2310sq rt(h) )) Qd=
h=
D= 1.45957
e
Use .`✓ "Skimmers
Skimmer Outlet Protection
New York Method 8.06.5 Manual
Diameter of Barrel = 4.00 "
Velocity= 2.36 ft/s
Zone= i
5.6
6050
3404
3
62.4 Ibs
0.68 ft
0.01 ft/ft
11160
3 2-5 days typ
3720 P
1.75
1.5 Orifice
La= 1.A Use 7.5 ft
W= I Use 3.0 it
Stone Diameter= Class A
Velocity 6*0 �fft/s
v iM 4e
Weir Lining
Shear Calculation
T=yds y=
dwater=
T= 0.39936 lbs/ft 2 s=
Use Class A Rip Rap
Skimmer Sizing
Calculate Dewater Time
Qd=V/Td V=
Td=
Qd= 3360
Calculate Orifice Diameter
D=sq rt((Qd/(2310sq rt(h) )) Qd=
h=
D= 1.387149
Use " Skimmers
Skimmer Outlet Protection
Newyork Method 8.06.5 Manual
Diameter of Barrel = 4.00 "
Velocity= 2.36 ft/s
Zone= 1
Permanent Diversion/BermM„_ffDAN
Calculate Flow - Rational Method
25-rrstorm
Qa=CIA
F
C3II':
I '16;Rf}l. inJhr
Qi,=.
1L99 A 'a7d ac
.
qA
to es 0 70%JA ,
Channel Lining
Shear Calculation
T=yds
v°- 62.4 Ibs
T=
0.2652 lbs/ft' OURft/ft
Tem pmai✓ Str,�:¢ vlriertlnt{
Peutarrenl Rai r vig.xti
Temporary Diversion/Berm
# 2 -> Da N
Calculate Flow- Rational Method
25-Yr Storm
Q6-CIA
r 030
10.80 m/hr
ly=
940
106
Cha ,el b"r==
2,00
6o non :. i•tth=
0,00
Side Slene_=
3.00
yelat-9=-.
3aSir
Sail___yjee
Sardy. Inam Stir=10%
Channel Lining
Shear Calculation
T=yds
y w n Ilr
d,, .: 0:39 It
T
0.55536 Ibsffta Q 0t ft/ft
Temporary-. ' ,¢::'vat:
Permanent=
62.4 Ibs
0.64 it
0.01 ft/ft
10080
3 2-5 days typ
3360
1,75
1.4 Orifice
La= 1.32 Use 7.5 ft
W= 1 Use 3.0 ft
Stone Diameter= Class A
RAFTING AND DESIGN
O
SERVICES, INC.
6728 Carbonton Road
Sanford, North Carolina 27330
[phone] phone
[e-mail]
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REVISIONS
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale:
Drawn by:
NTS
MTB
Sheet:
Designed by:
MTB
/�
C 12 of 13
Reviewed by.
MTB
Project Number:
Date:
DDS JOB #: 2021-10
MAR 2021

Temporary Diversion/Berm# 3 -i)A it
Calculate Flow - Rational
Method
TS -Y' Siorm
0 = CIA
C MO
10.80i in/hi
Lla=
17-82 A ShO ac
Channel Shape=
0.5b
_Channel Depth=
II
Bottom width-
3B01
Side Slopes
3(it7
velou
3315;
Sad TV pe p
sandy.lWwO slopes 010-4
Chamrel Lining
Shear Cairn latim,
Tryds
y 6-' Ibs
d 0uit
Ta
0.2970411is/ft'
Temporary U,w,, .c'w1fln9
Pennanent 8oewudayass
Temporary Div ersioa/Berm#
4
Calculate Plow - Rational Method
25-YrSnrtm
Q,=CIA
030
I. 10-80 iu;hi
Qom=
12.64 3'W ac
Channel Slope=..
`'0.50
Channel Depth
1 50:
Bottom width
AM
Side5lopes
3U0
Velocity-
LT
Soil Type C'P'andy
halo-. Slope U IOSX -
Channel Lining
Shearcalcalation
T=yds
y t Ibs
d ra it
T. 027344Jhs/ft' s ri r. lilh
Temporary `Sf10G.'v+Jncth($
Permanent Rarntuda$•ass
A .
A -
0
v,
v�•
TempamryDiversion/Berm# _5 DAA S
Calculate Flow - Rational Method
25-Y, Stonn
Qa=CIA 0 30
10.8E
Q,=
',.39 lliaz
Chan tel Slone=
O: i0
Channel Depth-
1.50
Bottom width=
0 Oft
Side Slope,--
60
Velo i =
230
SodT" w sandy L,.� o S, U i➢�
Channel Lining
Shear Calculation
T=yd, 621 Ibs
T= 0.22776 lbs/fP r 0,005 it/ft
Temporary=''` '''
Permanent=. r
TemporaryDiversion/Berm# H „f =aDA# A --
Calculate Flow - Rational Method
25-Yr5torm
Qa=CIA C
I 10AQ is/hr
Qa= 11.66 A Trio tic
Channel Slope
Channel Depth=
Bottom width=.
Side Slopes=
Velo �i0
SoHTVpa t9
Channel Lining
Shear Calculation
T=yds 62.4 Ibs
d ft
T= 0.15.72481bvit s :ft/ft
Temporary-
Permanent Be+ Jap;rass
TemporaryDiversisn/Berm# ,s
7 ->DA#
Calcuiate Flow - Rational Method
25-Yr Smrm
Qe;=CIA
i 0.3f
TOM in(h r
U3= 6-16
A 34Ika(
Channel Sla�:`sr.. 0.5D
Ch I Depth 'k.3-0
Bottom wig-- e,00
S de Sloes a3,Qi#:
Vela 1�ti0 ' d_
SodT £"e iltzyik?? :,Y
Slopes 'ii-1Q
Channel Linin4
Shear Calculation
T>yds
y- 62.4 Ibs
Qeare ft
T= 0.27144 ibS/ftt s _ 'it(ft
Temporary='�
Permmmot-. _ ,a:,
RAFTING AND
DESIGN O
SERVICES, INC.
6728 Carbonton Road
Sanford, North Carolina 27330
[phone] phone
draftinganddesiQnC�ymaiLcom
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REVISIONS
AGENCY REVIEW ONLY
NOT FOR CONSTRUCTION
Scale:
NTS
Drawn by
MTB
Sheet:
Designed by:
MTB
C 13 of 13
Reviewed by:
MTB
Project Number:
DDS JOB #: 2021-10
Date:
MAR 2021