20080208 Ver 1_Stormwater Site Plans_20080130

` _ _ ` , f /, �;, f f S ` 1 r �. —• —•— CONSTRUCTION SEQUENCE
-.0
- t ! ► 1 / , r , % ONCE THE SITE IS STABILIZED, CONSTRUCTION OF THE LEVEL
` \t i / j f .= �`"' f=! / / ' I ► / I 1 t l , / \ / / / i / ,.> \ / SPREADERS CAN BEGIN.
\ tt \ _ I / f �/. 1 // / 1 1 I t t \ t 1 1 i 1 / / •� t
/ + t r
\ , t �` 1 / ,% i / t �� - / 1 1 t { ! 2 7 1 ; 1 1 I i ' /\ !� , �' '`,�� ,� �' /� �' �' `� �� \_ REMOVE THE SEDIMENT TRAP AND FORM THE FOREBAY STRUCTURE.
1 _ `'- - -_ '' x iH 1�EE , , �, ~�� `� �\
' ( t i \ t I r ! t t / t 1 -FIR HYD N4 t t /� �- •.c / �� \ \ \ CONSTRUCT THE LEVEL SPREADER LIP AND ADJOINING CHANNEL. Of THE -AREA OF RIPAR BUF R WHI H CONTAINS THEE PIP ! 1 t J I \;� �` << I t ♦ ,
CROSSING- -HAS BEEN" DENOTE ,\ WITH A BOLD LINE'. iS �4 , , t ;,
Vol �� �,,�� _ t , , , ! , 1 p \ \
\i - ' - - - _ CONTAINS a 5' -S.F. OR eA LqEj O F RIPARIAN 8 FF R. + t + ` ++ ,�� \ \ �`:''� ,�;,� I \ \ ° 1 t ► , ' I ' 1 ' I ' ! -•�!•� t. �_, ' / / • ; , ,' ,� \ \ \ \\ONCE THE LEVEL SPREADER STRUCUTRE IS INSTALLED, SEED AND
\ , t \ 1 ii -�- \�,� \ ( - 1 I , •�,�,_ , \ \ STRAW THE ENTIRE AREA ACCORDING TO THE SCHEDULE OUTLINED
1 \ l,11t �, \ ` I 1 j h1�1 t `l -..�, I "C) 1 1 ! , ! t I I 1 t ....�•} -i ,�,/..- "'►'� a i�.l 1 �� / / / / ♦ i �i
- \ \ t + t 1 ,l� \ ., ! ► r ► ! o DRAiNXGE 1 - t t / / / , , .,
t _ AREA 'IN _RIPARIAN BUF1=`ER t t 1 (�,� , l t j, ` 1 -� _ , , t , / , / / , ,� \\\ \ �• `\ UNTIL VEGETATION iS ESTABLISHED THE LEVEL SPREADER SHALL BE
1: (9642 S.F� \\ \ t i t \ ,,� \ \ +�i, t / , a �\MAINTENANC E r 1 1 I ,.l t 1 / , \ ONE , 0 1 , ,�� l �-- , r , , 1 1 / / - \ \ \ \ \ \ INSPECTED WEEKLY AND AFTER EVERY RAINFALL EVENT. ANY
\\ \ t 1 i , tl , \ `� t ,I t it ' I Z EASEMENT �t i 1/-- • — ...._ . t� r \
• t + ZON f3113� S.F. \ \ t t + t ` \ _ ~ ` Il,il 1 , ! , t ,1 1 l t t-- . \ i I r I 6 \, AN THE STRUCTURE SHALL BE
+ , `\ \ `� 1 + ' i + t ;; , t :- } t >> ! I , c ! LEV L ! 1 t / ��•000 / °° _ i_ t , t i + I / \ . \SEDIMENTATION SHALL BE REMOVED D EST
It y l,t! �,,� , >i i t r • y R2 co ! t / ,� REPAIRED AS NECESSARY.
• \ 1 + ` 1 \ \ + I i ! 1 i t I i'1 I /� / / , ` I ..1 i ` �-.... r, SPREADER # 1 t J ��, yam.•. 1 ' / _ O 30 t _ ,,� • i \ 4 / /�- Jo
1 I I I t i + 1 11 �� , FOREBAY 1 ! r ' / \ l , O y t ♦.�` \ \ \ �` NOTE: SILT FENCE AND1QR ALTERNATE TEMPOSAU SEDIMENT
1 1 ► ` IIPE �3 ' ! ` ` '� ' �" \ �'�. \ ` i �� EROSION CONTROL MEASURES SHALL BE INSTALLED BELOW
�, ;1 / I J r I I / �,i• r I ► R> • '� 1 J ! \ ♦ ♦ \ \ '�
• + , ` ' ' + r i 1 t i 2,c �- AiCP� 01.390 , / j ! t t / C� 1 l +• - -' - -' •ice �'� ` 1 `•. DISTURBED AREAS AS NEEDED TO PREVENT SEDIMENT LOSS,
WIfH 2 - I W,� t / _v* , t Q / t n t �� \ �•� ! i / ,
AND 2 - FES � 1 . r /. � 1 t E ,3 , � •I t " / 0 / � \ �•� 1 / � �.
1 i l 1-�N • O \ �• ! / INACTIVE BETWEEN ANY PHASE OF GRADING
DA* 17,.45 / AC ,g fl l , �E " 1 1 , .��•� I ! \ \\ y'` i •/ �,` DISTURBED AREAS LEFT 1
> • l 1 •--� I � t• \ \ O \ �.� •• / �• SHALL BE TEMPORARY SEEDED WITHIN 15 WORKING DAYS OR 30
/ I NV I 2.,; / �' ,' / / , O ��. 1 1 i ` oh \ �, 1 ��
/ l i \ / INV OUT 1.3 ! f '' r / 1 i '� j O + •� CALENDAR DAYS, WHICHEVER IS SHORTER. PROVISIONS OF
/ /
/ `� / , f , / / ' , ` , ` , 1 • J" ,' , J , 1ki . �JO / t ► J / \ t �'�� 1 25 PERMANENT GROUND COVER MUST BE ACCOMPLISHED ON EXPOSED
\ l /� �i / l ! ;l l 1► j ' / // /� ! �' ! cr J �� �` �'''' l i •� 1 1` �Q' i , , \ \ '�� 1 ./ SLOPES 21 CALENDAR DAYS, AND IN REMAINING AREAS WITHIN 15
• � \ \ / / , / / / \ / / / / �i , , / r /'.r WAT�R S VICE / r 1 / - \ + '� 1 /
! , 1 • - ; �� l ` ! + 1 �• / WORKING DAYS OR 90 CALENDAR DAYS, WHICHEVER IS SHORTER.
, I 1 / / r / WITH METER OX (Tyr.)
l I % 1 / 1 1, \ Q ♦,
I \/♦ I \
t t\ , / / / / , J 1 / t t .� / •�.•/ 11 / 1 1 t / 1 t 1 , 1 �. IN.
"EXPOSED"
1 •�..• / , 1 t t r t 1 1 , ► \ • / EXPOSED AREAS INCLUDE, BUT ARE NOT LIMITED TO.
lop i
� t � t ' i 1 1 � � � �O *AREAS CLEARED FOR ROADWAY CONSTRUCTION
t / ! ' ' 1 \ 1 V ♦ l 1 AREAS CLEARED ON RESIDENTIAL BUILDING LOTS
�'''• � � O 1 � � \ t i I i 11 � + 1 k�
/ / / 1i ,y.' ` • 1 1 -- �.. ` i ! ► 1 ♦ �'� 1 1 ` * DRAINAGE EASEMENTS AND OPEN DRAINAGE CHANNELS.
x6 / HYDRANT TEE , / / �,,. . , _ 1 1 i ► r t 1 ► I i _ _ _•__.__.- -• - -.� ♦ + + i r _ `\ w
_ / ! I ��, SEDIMENT AND EROSION CONTROL MEASURES (SEDIMENT TRAPS,
- FIRE/ /HYDR#hT / ,� , �" w r " I \ 1f .,y• 1 tt , t ��•�,}.•, i 1 • - -• - -• �� \
•+ .. ! I DIVERSION DITCHES ETC.
� , / / ,.. � \ . � � t � y` •' � FOR BAY � 2 \ 1 t t ! / �. AND THE AREAS ADJACENT TO SUCH MEASURES.
• t '� , ASSEMBLY / \ sow if ,owe 1
t / , LEVEL \ \ r � ; ? . p doo \ t I \ \ -- �% 'i s / / / \ \ \ \ SOREAD_ER2 1 1 4 / i �, \
• ► t \ � •` `,,O Odp— ''/ I, • ' \ 1 \ t I \ , 1 `` �\ `� `• ` '�t \1 `� \ \ ` ♦ ( + , ( 1`•�' `\
p
t r Vol . i _ O r 1 \ t ! ` I _ === === \ ,DRAINAGE _ _ \ \ 1 t \ _ / I +/ ` �•
' + / � • � I � r 1 \ _�_` � �.- � � . .. \ \ MAINTENANCE � 9\
+ t _ _.
lit
• \ ��-•� -i �•��� i ` `� \ % ` �\ ����� `- _ ` \ �" FROM \ :TO� \ ` - - - / i + t l �.� �•��. �.
NOTE TO CONTRACTOR. �.� 0� B \ / I I / . 6''' /
CONNECT PROPOSED 6 PVC WATER - , + \ \ �0 Wtx ! ♦ �. •�
LINE TO EXISTING i 0" D.I. WATER MAIN � � � -'
WITH 1 -10 x6 TAPPING SLEEVE AN �� • / - \ __
VALVE ASSEMBLY. t \0 %!' /,: .•�� t \ ,; ' 2 \\ `� \ \ \ \` �0 `1 �t�t tt \t . `� \` � \ �i M - _ � �• ! / �� /
i !� < t \
w/ or _ i \
t.....• f -. /
i•.. -
'� / � � •
1 10 x6 TAPPING SLEEVE \ \ ` + I ! t ` `\ \ '�y t -'r- -� "i r - =� -.�� _ '4 - -- i ! , - _�_ _ �� ♦ , �� \ �,
AND VALVE ASSEMBLY ���\ \l i i �, + / �• \ C� �,t'%`- '" -- - -' = ; ,. - _ - _ t 1 I i r 1 i •� / / /• `% \
6 NO
1 `
\ 1bp X ' SIG,HT .i�• I t 1 I �� ` `: `\ \t 1 \ ' / ' - - i -- -' ` ! I1 _ \ �• / i, //' ♦ ` `• _�� •; _
\ \ TRMkLE + �. -- - _ , r • — . • / i i �� � . . �• NOTE. ALL EMBANKMENT FILL GREATER THAN \ t \ / _ - - , \, \ \ �� i �\ \ \ % �.
\ \ • .ice ' \ t 1 / � � _ �,. " ._ , •: 1 / / � / • \�• �
\ \ t \ \ SEVEN FEET (70)s AS MEASURED FROM ROADWAY , i t \ / � \ ••\ _ _ ,• , \� \ _ _ _ �• `
r t \ \ \ CENTERLINE TO INVERT FOR ALL STORM DRAINAGE t i ' ��' r '''-' - `` N.
w000lo �t �` \\ •\ •� ~PIPE CROSSINGS SHALL HAVE EITHER GUARDRAIL l , 7 i/ /, /• ,�` \\ `�`�
\ INSTALLED TO NCDOT SPECIFICATIONS OR BE ► i - - - -- - , % , ; , = i ,i \�•� \
GRADED TO A 4:1 SLOPE OR FLATTER. ' i �' >, ,;'� \ / \ — \ `• i ./
� 1 NOTE.
\ ��\ �\ INVERTS OF THE 2 -60 R.C.P. S SHALL BE , / ,.- ,', �' / \ \ �` / .� ,•/ a `•�
- , , , 50 RIPARIAN BUFFER \ — • / / •� `
PLACED AT A MINIMUM OF 12 BELOW THE , .. _ �
X \ \ / / � ��� • _`1 - .
`� �� \ \ \ \ ` t STREAM BED - ELEVATION FOR AQUATIC LIFE
\ ` \\ ` + PASSAGE. \� -
\ \ _ t �• "� -" ': 1. ,. ,- '�' CFROM TOP OF BANK)
� � � � \ \ 410 •� `` •�� - --
\ = �
8
` t 1 BASED ON N.C.D.O.T. DESIGN STANDARDS OF UTILIZING 4:1
rJO
_ FILL SLOPES WITH GUARDRAIL, TWO 75'
PLAN SCALE. LENGTHS OF PIPE
�� — WO ULD BE REQUIRED FOR THE STREAM CROSSING. THE r
,
A PIPE CROSSING WOULD DISTURB 139 OF STREAM BED._ �_,__ _^ % •
110.00
100.00
90.00
80.00
ff-XIE
50.00
40.00
30.00
20.00
O
0 00
.
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-- '"
00 __
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h ____ -____-
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.� !t
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365.0 0 --j-56
Pon
P
rns
nw3f
0
c; LO n0 � O
+ ui + o
Nf� Mtn
Q W < >
� W
• __�__ V V 5: 5: CENTERLINE
_
• _ _ a a OF ROADWA
• 1 `
• —on.
. Owosso .
Now so wo—ows— --moso
18 "0 RCP
20' -6" D.I. WA ER LINE CENTERED `
UNDER STORM RAINAGE
18" VERTICAL EPARATION MIN
NOTE:
BANKMENT FILL
GREATER THAN
20X4'
INVERTS OF
HE 2 -60" R.C.
.'S SHALL BE
PY
PLACED AT A
MINIMUM OF 1
" BELOW THE
GE
STREAM BED
ELEVATION FOR
AQUATIC LIFE
IL
PASSAGE.
NCDOT SPECIFl
TIONS OR BE
00 to O O
NOTE: ALL E
BANKMENT FILL
GREATER THAN
20X4'
SEVEN FEET (').
AS MEASUR
D FROM ROAD
PY
CENTERLINE T
INVERT, FOR
S TORM DRAT
GE
PIPE CROSSIN
S SHALL HAVEHER
EITHER GUARD
IL
INSTALLED TO
NCDOT SPECIFl
TIONS OR BE
00 to O O
GRADED TO A
4:1 SLOPE OR
R.
FLOW PATH p
to N '_ --
d' 0
0000 rn co o 0 CINI
(6 N O 00 (6 (6
00 00 00 00
_1+00 -0 +50 0 +00 0 +50 1+00 1+50 2 +00 2 +50 3 +00
PROFILE SCALE:
HORIZONTAL I if = 50'
VERTICAL ill =10'
N
p
O N
�A 1�
J
W
2 -60" R.CP.
0 Woo p 0
to M + to °+
00.0' 0 +138 o
NATURAL
GROUN
X6
a
,id
--
ooss, - -
•
. swoo .
qe�1 r,
COVE
0 "mono,•
w
18'-6" D.I. WAFER LINE
OVER STORM RAINAGE
(18" VERTICAL SEPARATION)
CA 00 0 00 00
toVON, to Wool
06 06 06
3 +50 4 +00 4 +50 5 +00 5 +50
STREET "A" - 50'PUBLIC R/W
1
1.72
20X4'
23'
2
1.26
CONCRETE LEVEL
—\
17'
owwwwj
SPREADER LIP
0
CO tri !� O
re) to O O
00 to O O
� u) N O N
40 to O O
It O N O'
1•
FLOW PATH p
to N '_ --
d' 0
O
N 00 O
.
vp N to to
v! r` � O
N N O to co
on r` O ow
+ +6
N to
+o +o
n
+C; \
N Lu
co___-r-- 00__ a0
0.0 oQ c0___ oo.__
_01 0 Co- oo_____
�j ��
Qo `.
CHANNEL
N
W
18
.0 0 +1.82%
NATURAL
GROUN
X6
a
,id
--
ooss, - -
•
. swoo .
qe�1 r,
COVE
0 "mono,•
w
18'-6" D.I. WAFER LINE
OVER STORM RAINAGE
(18" VERTICAL SEPARATION)
CA 00 0 00 00
toVON, to Wool
06 06 06
3 +50 4 +00 4 +50 5 +00 5 +50
STREET "A" - 50'PUBLIC R/W
0 N It" Two 0 00 Two
tV a 17 O QO
6 +00 6 +50 7 +00 7 +50 8 +00 8 +50 9 +00 9 +50
APPROPRIATELY SI &L.v
CONCRETE FOOTER
3" LAYER OF
#57 STONE
RIPARIAN ZONE 2 BUFFER ZONE 1 BUFFER
BUFFER 1 20 30' _
...........
E STRIP OF
FABRIC .....................
FOREBA
REINFOR,
CHANNEI
.......................
......................
r► v► v► ......................
......................
•r v► r► ......................
.....................
... .. . . ...
.....................
......................
.....................
.....................
57* STONE .•.•.•.•.• .•.•.•.•.•.•.•.•.•.•.•.•.•.•.•.
tI , .
ABglc �•:'•':':'••• •': • ::'''•': :
'•':'::..
.....................
.......................
r► r► r► .......................
.......................
......................
........................
........................
.....................
v► v► �.'.' .....................
. . . . . . . . . . . . . . . . . . . . . . .
♦ W .......................
......................
......................
......................
SPREADER ...... :........... .
........ ..........
LIP �. �► �. ....................•.
.......... .......
................
. . . . . . . . . .
LEVEL SPREADER
NOT TO SCALE
CL/,JS "B" TO LEVEL
RVEMT RIP� SPREADER
MINATER
1
3'
FOREBAY
LEVEL 010 FOREBAY
SPREADER (CFS) SIZE LENGTH
1
1.72
20X4'
23'
2
1.26
20X4'
17'
owwwwj
t+GC�O
^�
p�p0+000
O+i^
N Lu
�
W
�j ��
N
W
RL" it
0 N It" Two 0 00 Two
tV a 17 O QO
6 +00 6 +50 7 +00 7 +50 8 +00 8 +50 9 +00 9 +50
APPROPRIATELY SI &L.v
CONCRETE FOOTER
3" LAYER OF
#57 STONE
RIPARIAN ZONE 2 BUFFER ZONE 1 BUFFER
BUFFER 1 20 30' _
...........
E STRIP OF
FABRIC .....................
FOREBA
REINFOR,
CHANNEI
.......................
......................
r► v► v► ......................
......................
•r v► r► ......................
.....................
... .. . . ...
.....................
......................
.....................
.....................
57* STONE .•.•.•.•.• .•.•.•.•.•.•.•.•.•.•.•.•.•.•.•.
tI , .
ABglc �•:'•':':'••• •': • ::'''•': :
'•':'::..
.....................
.......................
r► r► r► .......................
.......................
......................
........................
........................
.....................
v► v► �.'.' .....................
. . . . . . . . . . . . . . . . . . . . . . .
♦ W .......................
......................
......................
......................
SPREADER ...... :........... .
........ ..........
LIP �. �► �. ....................•.
.......... .......
................
. . . . . . . . . .
LEVEL SPREADER
NOT TO SCALE
CL/,JS "B" TO LEVEL
RVEMT RIP� SPREADER
MINATER
1
3'
FOREBAY
LEVEL 010 FOREBAY
SPREADER (CFS) SIZE LENGTH
D P3 a.
JAN 3 0 2008
DENR - 'MATER QUAUT7
WETLANDS AND STORMWAiER
INSTALLATION. MAINTENANCE. AND REMOVAL SCHEDULE FOR LEVEL SPREADER
INSTALL THE LEVEL SPREADERS FOLLOWING THE INSTALLATION OF THE SEDIMENT TRAPS.
INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL UNTIL VEGETATION IS ESTABLISHED, AND PROMPTLY MAKE NEEDED
REPAIRS. AF 'ER THE AREA HAS BEEN STABILIZED, MAKE PERIODIC INSPECTIONS AND KEEP VEGETATION IN A
HEALTHY, VIGOROUS CONDITION.
LEVEL SPREADERS ARE CONSIDERED PERMANENT STRUCTURES AND SHALL REMAIN FOLLOWING THE COMPLETION OF
CONSTRUCTION
ROADWAY &UTILITY CONSTRUCTION PLANS
FOR THE
PACE TRACT.
WILDERS TOWNSHIP -JOHNSTON COUNTY, N.C.
� � 0
Job: 07021
1
1.72
20X4'
23'
2
1.26
20X4'
17'
owwwwj
D P3 a.
JAN 3 0 2008
DENR - 'MATER QUAUT7
WETLANDS AND STORMWAiER
INSTALLATION. MAINTENANCE. AND REMOVAL SCHEDULE FOR LEVEL SPREADER
INSTALL THE LEVEL SPREADERS FOLLOWING THE INSTALLATION OF THE SEDIMENT TRAPS.
INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL UNTIL VEGETATION IS ESTABLISHED, AND PROMPTLY MAKE NEEDED
REPAIRS. AF 'ER THE AREA HAS BEEN STABILIZED, MAKE PERIODIC INSPECTIONS AND KEEP VEGETATION IN A
HEALTHY, VIGOROUS CONDITION.
LEVEL SPREADERS ARE CONSIDERED PERMANENT STRUCTURES AND SHALL REMAIN FOLLOWING THE COMPLETION OF
CONSTRUCTION
ROADWAY &UTILITY CONSTRUCTION PLANS
FOR THE
PACE TRACT.
WILDERS TOWNSHIP -JOHNSTON COUNTY, N.C.
� � 0
Job: 07021
Date: 1/21/08
Revision:
File: RCP01 001
Drawn: SED
Sheet: 3 of 6

'��•� cuss 1 RIP "SEE SECTION UM BASIN BEL �'' ,••' _
QOM► ••� - �•• �•• �• ,
T ♦ RIP /I�AP/HEACWALL
i.
FLOW /'
000, • •
#5 WA96 STONE.•i I'
r • �' STMA ...�.- �--' 'X S HIGH
_. � AREA � VK
PERSPECTIVE MEW
i
i
NOT TO SCALE
COMPACTED n u �
IFLOW
J. -
DIVERSION DITCH
NOT TO SCALE
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR DIVERSION DITCH
INSTALL THE DIVERSION DITCHES IMMEDIATELY FOLLY THE COMPLETION OF CLEARING WITHIN THE STREET R/W.
INSPECT DIVERSION DITCHES AFTER EVERY RAINFALL DURING THE CONSTRUCTION OPERATION. IMMEDIATELY REMOVE
ANY OBSTRUCT11ONS AND /OR SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. CHECK OUTLETS
AND MAKE TIMELY REPAIRS AS NEEDED.
DIVERSION DITCHES, WHICH DURING THE ROUGH- GRADING PROCESS ARE CONVERTED INTO ROADSIDE DITCHES, ARE
CONSIDERED PERMANENT STRUCTURES AND SHALL REMAIN FOLLOWING THE COMPLETION OF CONSTRUCTION.
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR CONSTRUCTION ENTRANCE
INSTALL THE CONSTRUCTION ENTRANCE BEFORE CLEARING /STRIPPING BEGINS ON THE SITE.
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION SITE.
THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE. IMMEDIATELY REMOVE ALL OBJECTIONABLE
MATERIALS SPILLED. WASHED, OR TRACKED ONTO PUBLIC ROADWAYS. .
REMOVE THE CONSTRUCTION ENTRANCE AT THE TIME THE SUBDIVISION STREETS ARE BEING PREPARED FOR
FINE- GRADING AND THE RECEMNG OF A.B.C. STONE.
PIPE OUTLET TO
WELL- DEFINED
CHANNEL
a
NO OVERFALL
APRON - ZERO
�- FILTER FABRIC
OR FILTER
BLANKET
• ' l
a
IN CHANNELS, ROLL OUT STRIPS OF
NETTING PARALLEL TO THE DIRECTION OF
FLOW AND OVER THE PROTECTIVE MULCH.
Amp-
• '' • - -
TEMPORARY LINER
NOT TO SCALE
ROADSIDE DITCH LINING REQUIREMENTS
STREET
1
STATION
TO
STATION
SIDE OF
ROADWAY
EL
STREET - "A"
1
0 +00
2 +87
NORTH SIDE
C350
STREET -me
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR CONSTRUCTION ENTRANCE
INSTALL THE CONSTRUCTION ENTRANCE BEFORE CLEARING /STRIPPING BEGINS ON THE SITE.
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION SITE.
THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE. IMMEDIATELY REMOVE ALL OBJECTIONABLE
MATERIALS SPILLED. WASHED, OR TRACKED ONTO PUBLIC ROADWAYS. .
REMOVE THE CONSTRUCTION ENTRANCE AT THE TIME THE SUBDIVISION STREETS ARE BEING PREPARED FOR
FINE- GRADING AND THE RECEMNG OF A.B.C. STONE.
PIPE OUTLET TO
WELL- DEFINED
CHANNEL
a
NO OVERFALL
APRON - ZERO
�- FILTER FABRIC
OR FILTER
BLANKET
• ' l
a
IN CHANNELS, ROLL OUT STRIPS OF
NETTING PARALLEL TO THE DIRECTION OF
FLOW AND OVER THE PROTECTIVE MULCH.
Amp-
• '' • - -
TEMPORARY LINER
NOT TO SCALE
ROADSIDE DITCH LINING REQUIREMENTS
STREET
; i�■
STATION
TO
STATION
SIDE OF
ROADWAY
LINING
REQUIRED
STREET - "A"
1
0 +00
2 +87
NORTH SIDE
C350
STREET -me
2
0 +00
2 +87
SOUTH SIDE
STRAW W NET
STREET -`A*
3
2+87
3 +75
EAST SIDE
STRAW W NET
STREET -wAw
4 1
2 +87
3 +75
WEST SIDE
STRAW W NET
STR -wAw
5
1 20 +63
17 +00
EAST SIDE
STRAW W NET
R - "Aw
6
17 +00
12 +50
EAST SIDE
STRAW W NET
STREET - "A"
7
12 +50
9 +38
EAST SIDE
C350
STREET -0A"
8
7 +75
9 +38
EAST SIDE
STRAW W NET
STRE -wA"
9
18 +25
17 +00
WEST SIDE
STRAW VNET
STREET - "A
10
17 +00
12 +50
WEST SIDE
N/A
STREET -wAw
11
12 +50
9 +38
WEST SIDE
STRAW W N
STREET-X
SPREADER LIP
`'
�' �' �' " " " " " " " " " "'
1.34
W
STREET -0A"
13
7 +75
2+87.5
EAST SIDE
STRAW W N1ET
STREET - "A"
14
7 +75
2 +87.5
WEST SIDE
STRAW W NET
STREET - "A"
15
20.63
18 +25
WEST SIDE
STRAW W NET
STREET - *B*
16
0 +00
1+00
NORTH SIDE
N/A
STREET -"B"
17
3 +59.8
1+00
NORTH SIDE
STRAW W/NET
STREET-
18
3+59.8
1+00
SOUTH SIDE
STRAW W N
STREET - "B"
19
0 +00
1+00
SOUTH SIDE
N/A
EX. CHANNEL
20
BETWEEN LOTS 26 & 27
STRAW W NET
ZONE 2 ZONE 1 STREAM ZONE 1 ZONE 2
FOREST FORESTED BED FORESTED FOREST
do DENSE do DENSE
GROUND GROUND
COVER COVER
20' 30' 30' 20'
TYPICAL CROSS SECTION OF RIPARIAN BUFFER
STEEL
POST -�
WIRE
FENCE
NOT TO SCALE
8" DOWN AND 4" FENCE FABRIC
FORWARD ALONG
THE TRENCH MAAA
lY
FLOW
PLASTIC OR
WIRE TIES
>/
NATURAL
GROUND
24"
BACKFIL TRENCH
PIPE OUTLET TO FLAT AND COMPACT NATURAL
AREA WITH NO WELL- APRON STEEL FILTER FABRIC THOROUGHLY GROUND
DEFINED CHANNEL LENG NO OVERFALL + POST
UPSLOPE
lip
v: ..
FILTER FABRIC .r. • •, • .1 ,.,• •..,.... •: • :• • . •• -. &ft*.
SECTION A-A O R FILTER BLANKET .'•' • •, ;" '• � '' ,' \ � . •: =„.1.� .r•. .
• ...~ • 8"
MIN
lb
APRON MIN :. ..... .: ..:
PIPE Q 50 3D 0 W DMAX THICKNESS STONE THICKNESS ,• • •\ • • '. _ • • • •: ' '
oI. (CFS) (INCHES) (FT.) (FT.) (FT.) C INCHES (cALC.) CLSS
(READ.) PIPE r • r: • .. •. •, . ;. • •, :: •...:.:: •,
1 18 7.18 3 6 4.5 9 6.750 10.20 A
2 180 7.91 3" 6' 4.5' 9' 6.750 10.2" A 9 0
3 60" 517.75 300 66' 15' 71' 22.5" 33.75" 2 27" INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR SEDIMENT FENCE
4 24" 17.69 6w 12' 6 18' 9.000 13.50 8 22" INSTALL SEDIMENT FENCE IMMEDIATELY FOLLOWING THE COMPLETION OF CLEARING ON THE LOT.
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS
PIPE OUTLET PROTECTION IMMEDIATELY.
NOT TO SCALE SHOULD THE FABRIC OF THE SEDIMENT FENCE COLLAPSE. TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT
PROMPTLY.
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR PIPE OUTLET PROTECTION
THE PIPE OUTLET PROTECTION APRON IMMEDIATELY FOLLOWING THE INSTALLATIOM OF THE ROADWAY CULVERT. 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.
NrSPECT RIPRAP OUTLET STRUCTURES AFTER HEAVY RAINS TO SEE IF ANY EROSION AROUND OR BELOW THE RIPRAP LAND QUAL17Y MUST BE CONTACTED FOR AN INSPECTION PRIOR TO REMOVING ANY TEMPORARY DEVICES.
HAS TAKEN PLACE OR IF STONES HAVE BEEN DISLODGED. IMMEDIATELY MAKE ALL NEEDED REPAIRS TO PREVENT
FURTHER DAMAGE. AFTER LAND QUALITY INSPECTION AND APPROVAL. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMEWS
PROTECTION APRONS ARE CONSWJIED PERMANENT STRUCTURES AND SMALL. REMAIN FOLLOWING THE DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN
'E SET PROPERLY STABILIZED.
COMPLETION OF CONSTRUCTION.
; i�■
2'X4'
23'
I
20 � 30'
�
FLOW BYPASS
3
•••••••••••
4
STRUCTURE
5
r► r. ..'.'. '.'.'.'.'.'.'.'.'.'.'.'.'.'.'..
'DIMENSIONS SHOWN ARE MINIMUM
3.5'- 33' -66
■�
.....................
v► r► v► '* ..•.•.•.•. ..•....•.•.•.•...•.•.....•..•.
2
■r■■
,°
i r
1.95
■■■E
3.5'- 21' -42'
.� SO .� .................... .
MMM
3
0.05
0 o
■�ii�
0.29
�►
■
■
NOON
it . ,�
i�
,••''•.
ObI FIB TER, '....• .•.....•...•...• ...:.:.:.:.:... .
.................... .
■rrr■rN■
180
i�
FABgIC
' '''''''''''''_'''''''
3.5'- 08' -16'
NOON
�I
r
CHANNEL��
■
■
`;. r
L
■
■
2.800
■
6
■■■
0.22
■r
■
■I�■
3.5'- 17' -34'
■
40
''''''''''''''
0.43
.s_■■
....i
. . . . . . . . . . . . .. . ....... .
.
•r v► r► .................... .
........................
749
CONCRETE LEVEL
........si
Imam
'.'.'.'.'.'. '.'.'.'.'.'.'.'.'.'.'•'•'•'•'•'
8
SPREADER LIP
`'
�' �' �' " " " " " " " " " "'
1.34
ri
3.5'- 19' -38'
r■
�...
9
Orr
■r
■I�N■
0.86
375
NOT TO SCALE
1.792
■i■■
10
■N■N
0.05
180
■■
■■
3.5'- 9' -18'
f
•N■■rrO■
11
0.05
0.11
180
■
rrr■■NNNNrr■r■■
3.5'- 12' -24'
1.008
4'
12
0.15
0.79
540
2.06
■
3.50- 22' -44'
• w _
Zia
■■N■
1.29
3.83
■
10.00
4.348
3.5'- 47' -94'
■E■
■NEN■■i■
14
0.20
0.51
733
■
�I r , I
3.5'- 26 -52'
4.732
6'
,NOON
i■ENN■■E■■N■■■■
as
;
�■■CN■Ori�i
rrrrr■■
r
r■r■rrr■
, .
■■E■■NON■■■r■■■■■
on
Ia=r■rO■r■
■■
■
■■
■■■
■■E■
■■OMINIM
■Ir
-
�:t►�ONEi
■
=E■
■■
■�N
■
■ ■�
■OAENME
r1L:1
NONE
NOON
OOOON■■E■■■E■■■E■O■
re
8" DOWN AND 4" FENCE FABRIC
FORWARD ALONG
THE TRENCH MAAA
lY
FLOW
PLASTIC OR
WIRE TIES
>/
NATURAL
GROUND
24"
BACKFIL TRENCH
PIPE OUTLET TO FLAT AND COMPACT NATURAL
AREA WITH NO WELL- APRON STEEL FILTER FABRIC THOROUGHLY GROUND
DEFINED CHANNEL LENG NO OVERFALL + POST
UPSLOPE
lip
v: ..
FILTER FABRIC .r. • •, • .1 ,.,• •..,.... •: • :• • . •• -. &ft*.
SECTION A-A O R FILTER BLANKET .'•' • •, ;" '• � '' ,' \ � . •: =„.1.� .r•. .
• ...~ • 8"
MIN
lb
APRON MIN :. ..... .: ..:
PIPE Q 50 3D 0 W DMAX THICKNESS STONE THICKNESS ,• • •\ • • '. _ • • • •: ' '
oI. (CFS) (INCHES) (FT.) (FT.) (FT.) C INCHES (cALC.) CLSS
(READ.) PIPE r • r: • .. •. •, . ;. • •, :: •...:.:: •,
1 18 7.18 3 6 4.5 9 6.750 10.20 A
2 180 7.91 3" 6' 4.5' 9' 6.750 10.2" A 9 0
3 60" 517.75 300 66' 15' 71' 22.5" 33.75" 2 27" INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR SEDIMENT FENCE
4 24" 17.69 6w 12' 6 18' 9.000 13.50 8 22" INSTALL SEDIMENT FENCE IMMEDIATELY FOLLOWING THE COMPLETION OF CLEARING ON THE LOT.
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS
PIPE OUTLET PROTECTION IMMEDIATELY.
NOT TO SCALE SHOULD THE FABRIC OF THE SEDIMENT FENCE COLLAPSE. TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT
PROMPTLY.
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR PIPE OUTLET PROTECTION
THE PIPE OUTLET PROTECTION APRON IMMEDIATELY FOLLOWING THE INSTALLATIOM OF THE ROADWAY CULVERT. 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.
NrSPECT RIPRAP OUTLET STRUCTURES AFTER HEAVY RAINS TO SEE IF ANY EROSION AROUND OR BELOW THE RIPRAP LAND QUAL17Y MUST BE CONTACTED FOR AN INSPECTION PRIOR TO REMOVING ANY TEMPORARY DEVICES.
HAS TAKEN PLACE OR IF STONES HAVE BEEN DISLODGED. IMMEDIATELY MAKE ALL NEEDED REPAIRS TO PREVENT
FURTHER DAMAGE. AFTER LAND QUALITY INSPECTION AND APPROVAL. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMEWS
PROTECTION APRONS ARE CONSWJIED PERMANENT STRUCTURES AND SMALL. REMAIN FOLLOWING THE DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN
'E SET PROPERLY STABILIZED.
COMPLETION OF CONSTRUCTION.
LEVEL SPREADER LIB
FLOW PATH
CHANNEL - - -
I" LAYER OF
157 STONE
RIPARIAN
BUFFER
STRIP OF
FABRIC
TYPICAL CROSS SECTION OF RIPARIAN BUFFER
NOT TO SCALE STAKE TO
COIR MESH OR SIMILAR, STAPLED OR
TRENCHED INTO BOTTOM OR SIDE
CROSS - SECTION OF A POROUS BAFFLE IN A SEDIMENT BASIN
• NOT TO SCALE
tr MK of wmw /s `
TOP of Olt 057 /s7 wAS STONE
TOP ELEVATION Of STORM WATER
FLOOD STORAM ZONE Woe
1
3.5•
1.S• MWK EXCA 3' STORAGE I E
BELO 11 w►T.
t.s' 3EDI�EtfT Do" SEDIMDIT
CLEAN � yllMM
(TYPICAL
SECTION THRU BASIN AND FILTER
1 10' WEIR LE10m
TOP Of Imm
T" PROTECTION ORCH /Mb �1RY TAM W wu EDGE OWL 121
NoRE: ,
1. THE TARP U80 TO PIROIECT 'THE WEIR SHAH K TFE WOM
SPECPIED. TIE LOOM Of THE TARP SHALL of ACCORDM
TO AVAEARE SUPPLY. IF MULTW'LE TARPS ARE USED THEN
TAMPS OWL K OVERLAPPED AT LEAST 12 ITCHES. UPSTREAM
NIP 3f1AWL MONO pOWNSTREAM TARP. TFE TARP SHALL BE 30 M•
tEA,nr otmr 3iLVEJe 1ARPAt1LIrS fOR SUN RESISTANCE PERSPECTIVE VIEW
CUSTOM BASIN
NOT TO SCALE
SEDIMENT TRAP MINIMUM REQUIREMENTS
APPROPRIATELY SIZED
CONCRETE FOOTER
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR LEVEL SPREADER
INSTALL THE LEVEL SPREADERS FOLLOWING THE INSTALLATION OF THE SEDIMENT TRAPS.
INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL UNTIL VEGETATION IS ESTABLISHED, AND PROMPTLY MAKE NEEDED
REPAIRS. AFTER THE AREA HAS BEEN STABILIZED, MAKE PERIODIC INSPECTIONS AND KEEP VEGETATION IN A
HEALTHY, VIGOROUS CONDITION.
LEVEL SPREADERS ARE CONSIDERED PERMANENT STRUCTURES AND SHALL REMAIN FOLLOWING THE COMPLETION OF
CONSTRUCTION.
INFLUENT
STORMwATER
1
3'
CLASS "B"
RIPRAP --�
FOREBAY
TO LEVEL
SPREADER
LEVEL 010 FOREBAY SPREADER
SPREADER (CFS) SIZE LENGTH
1
ZONE 2 BUFFER ZONE 1 BUFFER
2'X4'
23'
I
20 � 30'
�
FLOW BYPASS
3
•••••••••••
4
STRUCTURE
5
r► r. ..'.'. '.'.'.'.'.'.'.'.'.'.'.'.'.'.'..
'DIMENSIONS SHOWN ARE MINIMUM
3.5'- 33' -66
7.623
.....................
v► r► v► '* ..•.•.•.•. ..•....•.•.•.•...•.•.....•..•.
2
FROM ��•
,°
i r
1.95
WATERSHED
3.5'- 21' -42'
.� SO .� .................... .
4'
3
0.05
W•v •-•••-•-•-• ••.•••••.••••••••••••••'•'•'•'•
180
0.29
125
57,r STONE �.• .•.•.•.•.•.•.•'•'•'•'•••••.•.•.
448
FOREBAY
it . ,�
i�
,••''•.
ObI FIB TER, '....• .•.....•...•...• ...:.:.:.:.:... .
.................... .
0.05
180
i�
FABgIC
' '''''''''''''_'''''''
3.5'- 08' -16'
REINFORCED
�I
. . . . . . . . . . . . . . . . . . . . •
'..'.'.'. '.'.'.'.'.'.'.'..'.'.'.....:.'.
CHANNEL��
.
.� �► •,.'.'.•.•.•. '.•.'.'.•.•.•.•.'.'.'.'.'.'.'..
L
749
3.5'- 20' -40'
2.800
6'
6
0.11
0.22
396
1.26
550
3.5'- 17' -34'
2.023
40
''''''''''''''
0.43
0.43
�i �►
. . . . . . . . . . . . .. . ....... .
.
•r v► r► .................... .
........................
749
CONCRETE LEVEL
39388
'.'.'.'.'.'. '.'.'.'.'.'.'.'.'.'.'•'•'•'•'•'
8
SPREADER LIP
`'
�' �' �' " " " " " " " " " "'
1.34
581
3.5'- 19' -38'
v. •� • • • • • • • • • • • • • • •
v► •••.•.•. .••.,........,••
4'
9
0.15
LEVEL SPREADER
540
0.86
375
NOT TO SCALE
1.792
LEVEL SPREADER LIB
FLOW PATH
CHANNEL - - -
I" LAYER OF
157 STONE
RIPARIAN
BUFFER
STRIP OF
FABRIC
TYPICAL CROSS SECTION OF RIPARIAN BUFFER
NOT TO SCALE STAKE TO
COIR MESH OR SIMILAR, STAPLED OR
TRENCHED INTO BOTTOM OR SIDE
CROSS - SECTION OF A POROUS BAFFLE IN A SEDIMENT BASIN
• NOT TO SCALE
tr MK of wmw /s `
TOP of Olt 057 /s7 wAS STONE
TOP ELEVATION Of STORM WATER
FLOOD STORAM ZONE Woe
1
3.5•
1.S• MWK EXCA 3' STORAGE I E
BELO 11 w►T.
t.s' 3EDI�EtfT Do" SEDIMDIT
CLEAN � yllMM
(TYPICAL
SECTION THRU BASIN AND FILTER
1 10' WEIR LE10m
TOP Of Imm
T" PROTECTION ORCH /Mb �1RY TAM W wu EDGE OWL 121
NoRE: ,
1. THE TARP U80 TO PIROIECT 'THE WEIR SHAH K TFE WOM
SPECPIED. TIE LOOM Of THE TARP SHALL of ACCORDM
TO AVAEARE SUPPLY. IF MULTW'LE TARPS ARE USED THEN
TAMPS OWL K OVERLAPPED AT LEAST 12 ITCHES. UPSTREAM
NIP 3f1AWL MONO pOWNSTREAM TARP. TFE TARP SHALL BE 30 M•
tEA,nr otmr 3iLVEJe 1ARPAt1LIrS fOR SUN RESISTANCE PERSPECTIVE VIEW
CUSTOM BASIN
NOT TO SCALE
SEDIMENT TRAP MINIMUM REQUIREMENTS
APPROPRIATELY SIZED
CONCRETE FOOTER
INSTALLATION, MAINTENANCE, AND REMOVAL SCHEDULE FOR LEVEL SPREADER
INSTALL THE LEVEL SPREADERS FOLLOWING THE INSTALLATION OF THE SEDIMENT TRAPS.
INSPECT LEVEL SPREADERS AFTER EVERY RAINFALL UNTIL VEGETATION IS ESTABLISHED, AND PROMPTLY MAKE NEEDED
REPAIRS. AFTER THE AREA HAS BEEN STABILIZED, MAKE PERIODIC INSPECTIONS AND KEEP VEGETATION IN A
HEALTHY, VIGOROUS CONDITION.
LEVEL SPREADERS ARE CONSIDERED PERMANENT STRUCTURES AND SHALL REMAIN FOLLOWING THE COMPLETION OF
CONSTRUCTION.
INFLUENT
STORMwATER
1
3'
CLASS "B"
RIPRAP --�
FOREBAY
TO LEVEL
SPREADER
LEVEL 010 FOREBAY SPREADER
SPREADER (CFS) SIZE LENGTH
1
1.72
2'X4'
23'
2
1.26
29X4'
17'
DRAINAGE AREA
WENt iENGTH
(ACRES)
(FT)
1
4.0
2
6.0
3
8.0
4
10.0
5
12.0
'DIMENSIONS SHOWN ARE MINIMUM
TOP ELEVATION OF STORMWATER
#57 WASHED
STONE
EXISTING SLOPE
EXISTING SLOPES
VARIES
0.5' -1'
MAX.
CLASS 1 RIP -RAP FILTER FABRIC
VARIES
SIDE VIEW
NOTE:
HEIGHT & WIDTH DETERMINED BY
EXISTING TOPOGRAPHY AND
SEDIMENT STORAGE REQUIRED.
KEY RIP RAP INTO THE DAM
FOR STABILIZATION.
N 10. '' �••�`•t'i ' • ' • ' WEIR '• •' • •• • •- VS�NG
w ' ' . ' -• •- ;'':.:'•• _ 1. - KEYED RIP RAP S - --
• R •,f ••• 1 .'r �,.. ,,• , LOP
%
-ti F
STEP SEQUENCE
#57 WASHED STONE
FRONT VIEW „„ ,•, _ _.
INSTALLATION. MAINTENANCE, AND REMOVAL SCHEDULE FOR CHECK DAMS
INSTALL CHECK DAMS AT THE TIME THE ROUGH- GRADING OF THE ROADSIDE DITCHES HAS BEEN COMPLETED.
INSPECT CHECK DAMS AND CHANNELS FOR DAMAGE AFTER EACH RUNOFF EVENT.
ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK DAM AND EROSION FROM HIGH FLOWS AROUND THE
EDGES OF THE DAM. CORRECT ALL DAMAGES IMMEDIATELY. IF SIGNIFICANT EROSION OCCURS BETWEEN DAMS, INSTALL
A PROTECTIVE RIP RAP LINER IN THAT PORTION OF THE CHANNEL.
REMOVE SEDIMENT ACCUMULATED BEHIND THE DAMS TO PREVENT DAMAGE TO CHANNEL VEGETATION, ALLOW THE
CHANNEL TO DRAIN THROUGH THE STONE CHECK DAM, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER
THE DAM. ADD STONES TO DAMS AS NEEDED TO MAINTAIN DESIGN HEIGHT AND CROSS SECTION.
LAND QUALITY MUST BE CONTACTED FOR AN INSPECTION PRIOR TO REMOVAL OF ANY TEMPORARY DEVICES.
AFTER LAND QUALITY INSPECTION AND APPROVAL AND AFTER ALL SEDIMENT - PRODUCING AREAS HAVE BEEN
PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL UNSTABLE SEDIMENT. SMOOTH THE AREA TO BLEND WITH
THE ADJOINING AREAS AND STABILIZE PROPERLY.
REVISION 001: ADDRESSED NCDENR COMMENTS - 1/08/08
INLET ZONE
35X OF SURFACE AREA
ssx OF SURFACE AREA
SECOND CHAMBER
zsX OF SURFACE AREA
amFr zoo
15X of SURFACE AREA
t'
3'
- s' cnMST woni
TRAP
R
AREA
(AC.)
DRAINAGE
AREA
(AC.)
VOL REQ.
(C.F.)
DESIGN
CFS
(10 -YR STORM
URFACE AREA
REQUIRED
(S.F.)
SZE L
( D )
ACTUAL VOLUME
SIZE
(C.F)
WEIR
LENGTH
1
0.22
1.00
792
4.93
2,145
3.5'- 33' -66
7.623
6'
2
0.22
0.34
792
1.95
849
3.5'- 21' -42'
3.087
4'
3
0.05
0.05
180
0.29
125
3.5'- 08 -16'
448
4'
4
0.05
0.05
180
0.29
125
3.5'- 08' -16'
448
4'
5
0.10
0.66
360
1.72
749
3.5'- 20' -40'
2.800
6'
6
0.11
0.22
396
1.26
550
3.5'- 17' -34'
2.023
40
7
0.43
0.43
19548
1.72
749
3.5'- 22' -44'
39388
4'
8
0.49
0.49
1.764
1.34
581
3.5'- 19' -38'
2.527
4'
9
0.15
0.15
540
0.86
375
3.5'- 16' -32'
1.792
4'
10
0.05
0.05
180
0.29
125
3.5'- 9' -18'
567
4'
11
0.05
0.11
180
0.63
275
3.5'- 12' -24'
1.008
4'
12
0.15
0.79
540
2.06
897
3.50- 22' -44'
3.388
4'
13
1.29
3.83
4.644
10.00
4.348
3.5'- 47' -94'
15,463
10'
14
0.20
0.51
733
2.93
1.274
3.5'- 26 -52'
4.732
6'
plywe �
•• • -•
2:i
G 20 MIN.
SLOPE FOUNDATION O 0,00
SPILLWAY
/ \
FILTER FABRIC J
GRAVEL FACING
0
d♦ g' 0( FLOW D � !^7 nn, P7
0
�I MIN. p � LEVEL r;;
APRON
0 0 0
SPILLWAY CREST � o 0 0 0
O O O O O ����
� o 0 0 0 �MNATER WW"
O O O
ROCK ABU7MENT---�
PLAN VIEW OF COFFER DAM WITH SPILLWAY DETAIL
COFFER DAM � AN 3 0 Zfl08
NOT TO SCALE
DEtAR
M40 � EpRNPNA�
STORMWATER MANAGEMENT
AND
SEDIMENT AND EROSION CONTROL PLAN
FOR
PACE TRACT ° 8 - 0 2 0 8
WILDERS TOWNSHIP - JOHNSTON COUNTY, NC

EGEhjD . . .
SEDIMENT TRAP Im
DIVERSION DITCH
. '
CONSTRUCTION ENTRANCE
CHECK DAM ' . . 4.
SEDIMENT FENCE
, . ­.V� I
PIPE OUTLET PROTECTION QA.
ARC FILTER INLET PROTECTION - :)
LIMIT OF DISTURBANCE -- •-- •- -• - -O-
I
STREAM CENTERLINE
TOP OF SLOPE�� �
�
/
.
/ -
.
TOE OF SLOPE I "*t �\
'� � \` . .
(INCHES) (CALC•)
CLASS (READ.)
COFFER DAId �
.
1 ` \ - I
(SEE DETAIL `
1•
SHEET 8 OF 8) \
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,__� BYPASS
j-- �
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EXTEND GEOTEXTILE I �
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FABRIC 5' BEYOND
BYPASS
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DIVERSION DITCHES - . � �
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DIVERSION DITCH
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STONE APPROACH SECTION •ter
SHALL BE 5:1 MAX SLOPE �"
/57 STONE PLACED ON
6EOTEXTIIE FABRIC INSTALLED
TO TOP OF SLOPE
I / r I ov
1 i
i WASH PAD
� (SIZE VARIES)
STREAM CROSSING DETAIL_
NTS
INSTALLATION AND MAINTENANCE SCHEDULE FOR STREAM CROSSINGS.
KEEP CLEARING AND EXCAVATION OF THE STREAM BANKS AND BED AND APPROACH
SECTIONS TO A MINIMUM. KEEP STREAM CROSSING AT RIGHT ANGLES TO THE
STREAM FLOW. THIS IS PARTICULARLY IMPORTANT WHEN CULVERTS ARE USED.
ALIGN ROAD APPROACHES WITH THE CENTER LINE OF THE CROSSING FOR A MINIMUM
DISTANCE OF 30 FEET. RAISE BRIDGE ABUTMENTS AND CULVERT FILLS A MINIMUM
OF 1 FT ABOVE THE ADJOINING APPROACH SECTIONS TO PREVENT EROSION FROM
SURFACE RUNOFF AND TO ALLOW FLOOD FLOWS TO PASS AROUND THE STRUCTURE.
ENSURE THAT BYPASS CHANNELS NECESSARY TO DEWATER THE CROSSING SITE ARE
STABLE BEFORE DIVERTING THE STREAM. UPON COMPLETION OF THE CROSSING, FILL,
COMPACT AND STABILIZE THE BYPASS CHANNEL APPROPRIATELY.
R
INSTALL PROTECTIVE GROUND COVERS TO PROVIDE PERMANENT EROSION PROTECTION
AND IMPROVE VISUAL QUALITY BUT NOT INTERFERE WITH DRIVER SITE DISTANCE FROM
ROADWAY.
ENSURE THAT PERMANENT MEASURES NEEDED TO CONTROL EROSION FROM ROAD
WATER RUNOFF (SUCH AS RIPRAP AND PAVED CHANNELS, PAVED FLUMES, OR RIPRAP
OUTLET PROTECTION) MEET ALL CONSTRUCTION REQUIREMENTS FOR ,THOSE PRACTICES.
INSPECT PERMANENT STREAM CROSSINGS PERIODICALLY AND AFTER MAJOR STORMS
TO CHECK FOR CHANNEL BLOCKAGE, EROSION OF ABUTMENTS, CHANNEL
DEGRADATION, RIPRAP DISPLACEMENT, SLOPE FAILURE, AND PIPING. MAKE ALL
NEEDED REPAIRS IMMEDIATELY TO PREVENT FURTHER DAMAGE TO THE INSTALLATION.
TEMPORARY SEEDING SPECIFICATIONS
BETWEEN MAY 1 AND AUGUST 15, ADD 40 L8 /ACRE GERMAN MILLET. PRIOR TO MAY 1
OR AFTER AUGUST 15, ADD 120 LB /ACRE RYE (GRAIN).
FALL IS BEST FOR TALL FESCUE AND LATE WINTER FOR LESPEDEZAS. OVERSEEDING OF
KOBE LESPE�EZAS OVER THE FALL SEEDED TALL FESCUE IS VERY EFFECTIVE. USE
UNHUILED BERMUDAGRASS SEED IN FALL.
SOIL AMENDMENTS
APPLY LIME AND FERTILIZER ACCORDING .TO TESTS. OR APPLY 2.000 LB //ARE GROUND
AGRICULTURE LIMESTONE AND 750 LB /ACRE 10 -10 -10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE GRAIN STRAW, OR EQUIVALENT COYER OF ANOTHER SUITABLE
MULCHING MATERIAL. ANCHOR MULCH BY TACKING WITH ASPHALT. APPLY ASPHALT AT
0.10 GALLONS PER SQUARE YARD (10 GAL /10.000 SF).
MAINTENANCE
REFERTIUZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED. REFERTIIIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
PERMANENT SEEDING SPECIFICATIONS
SEEDING MIXTURE
SPECIES
TALL FESCUE
SERICEA LESPEDEZA
KOBE LESPEDEZA
PENSACOLA BAHIAGRASS
RATE (LB/ACRE 8a
30
10
50
SEEDING NOTES
1. FROM SEPT. 1 - MAR. 1, USE UNSCARIFIED SERICEA SEED.
2. ON POORLY DRIUNED SITES OMIT SERICEA AND INCREASE KOBE TO 30 LB /ACRE.
3. WHERE A NEAT APPEARANCE IS DESIRED, OMIT SERICEA AND INCREASE KOBE TO 40
LB /ACRE.
NURSE PLANTS -
BETWEEN APR. 15 AND USG. 15, ADD 10LB /ACRE GERMAN MILLET OR 15 LB /ACRE
SUDANGRASS. PRIOR TO MAY 1 OR AFTER AUG. 15, ADD 25 LB /ACRE RYE (GRAIN).
SEEDING DATES
BEST POSSIBLE
EARLY SPRING: FEB. 15 -MAR. 20 FEB. 15 -APR. 30
FALL: SEPT. 1 -SEPT. 30 SEPT. 1 - OCT. 31
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST, OR APPLY 3,00 -5,000
LB /ACRE SUDANGRASS. PRIOR TO MAY 1 OR AFTER AUG. 15, ADD 25 LB /ACRE RYE
(GRAIN).
.
APPLY 4,000 LB /ACRE GRAIN STRAW OR EQUIVALENT COVER OF ANOTHER SUITABLE
MULCH. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR ROVING OR BY
CRIMPING WITH A MULCH ANCHORING TOOL.. A DISK WITH BLADES SET NEARLY
STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. APPLY ASPHALT AT 0.10
GALLONS PER SQUARE YARD (10 GAL/ 10,000 SF).
MAJNTENANCE
IF GROWTH IS LESS THAN FULLY ADEQUATE, REFERTILIZE IN THE SECOND YEAR,
ACCORDING TO SOIL TESTS OR TOPDRESS WITH 500 LB /ACRE 10 -10 -10 FERTILIZER.
MOW AS NEEDED WHEN SERICEA IS OMITTED FROM THE MIXTURE. RESEED, FERTILIZE,
AND MULCH DAMAGED AREAS IMMEDIATELY.
CALL BEFORE YOU DIGI
NORTH CAROLINA LAW REQUIRES NOTIFICATION OF
THE UNDERGROUND FACILITY OWNER NOT LESS
THAN TWO (2) BUT NO MORE THAN TEN (I 0)
WORKING DAYS PRIOR TO EXCAVATION OR
DEMOLITION
North Carolina One -Call
Center, Inc.
www.ncocc.org
1- 800 -632 -4949
NOTE:
A DRIVEWAY PIPE WITH APPROPRIATELY SIZED DISSIPATOR SHALL BE INSTALLED
AT EACH DRIVEWAY ENTRANCE. (SEE TYPICAL SIZING CHART BELOW)
THE DRIVEWAY PIPES ARE TYPICALLY SIZED PRIOR TO THE FINAL PLAT
RECORDATION. AT THIS TIME THE LOT LINES AND DRIVEWAYS WILL BE IN THEIR
FINAL LOCATION AND THE DRIVEWAY PIPES CAN BE ACCURATELY SIZED.
PIPE - Q D50
LA
3D0 W
APRON
DMAX TH NESS
MIN.
STONE THICKNESS
PIPE DIA. (CFS) (INCHES)
(FT.)
(FT.) (FT.)
(INCHES) (CALC•)
CLASS (READ.)
DRIVE WA
CULVERT
24"
10.09
6"
1
6'
18'
9"
13.5"
B
22"
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VICINITY MAP (NOT TO SCALE)
PRELIMINARy PLAT NOT FOR RECORD
CONVEYANCES OR Sq�S
SUBDIVISION SITE FOR PACE TRACT ON 13UFFALO R
i� 2. �3 SF 31.5'
AREA IN TRACT... .......... .. ..............................1 �7 6 AC
AREA IN RIPARIAN BUFFERS..................... ..................2390198 SF 5.489 AC
AREA IN WETLANDS...'.........'*....... ..... .......................... ASSOCIATED 0NL`y' WITH CHANNEL
THIS TRACT IS NOT_.XXXX_ LOCATED IN A 11DO YEAR FEMA FLQOD ZONE.
RIPARIAN AREAS MAINTAINED IN OPEN SPACE TOTALING .................... x.489 AC
LOT LINES ST '-"P AT THE 50! RIPARIAN BUFFER
AV�RAG`E LOT SIZE EoQALS '!)0,000 SF
A.R�,A IS LOCATED IN THE NEUSE RIVER BASIN . ............................HUC 03202021
TRACT LOCATION........ 35.436"N 78.23`0-W 0-W (DD)
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FOR
TRUE LINE SOILS, LNG'
CLEVELAND TOWNSHIP, JOHNSTON COUNTY
NORTH CAROLINA
Sk RVEYED -BY:
b RA* N Ty"..
FDRAING HECK.D E'(: - I
N�.ME:
JOB ' Nth.
oa -o2oa
LINE sci q vFl P. co
2i.45 'VV ES7 MAIN STREET
C,LA)'FON, N.C. 27520
TEL PHONE: (919) .359- - ►4.27
FAX: (919) 359 --- 0408
www.tru e l i n es4 rveyi n g. Go m